Patent Abstract:
The present invention relates generally to the field of lighting. More particularly, the present invention relates to decorative, reconfigurable or energy and maintenance efficient fluorescent light fixtures that use energy efficient lamps and ballasts, and to an apparatus for new fluorescent light fixtures and for replacing an existing fluorescent light fixture for energy efficient use. Further, the present invention relates to a system that integrates light fixtures with a suspended grid ceiling or a solid ceiling.

Full Description:
CROSS REFERENCE TO RELATED APPLICATION 
     The present application is a continuation-in-part application of the application of Mark Welker, U.S. Ser. No. 11/031,928, filed Jan. 8, 2005, entitled FIXTURE AND METHODS. 
    
    
     FIELD OF THE INVENTION 
     The present invention relates generally to the field of lighting. More particularly, the present invention relates to decorative, reconfigurable or energy and maintenance efficient fluorescent light fixtures, and to an apparatus for new fluorescent light fixtures and for replacing an existing fluorescent light fixture for energy efficient use. Further, the present invention relates to a system that integrates light fixtures with a suspended grid ceiling or a solid ceiling. 
     BACKGROUND OF THE INVENTION 
     Typically in buildings, suspended ceilings having a metallic grid that supports panels in grid openings are common. Generally, in such ceilings, direct lighting fixtures replace panels in selected grid openings to provide room illumination. Such light fixtures are usually open bottom boxes that have a number of fluorescent lamps mounted in the box, in parallel, with a translucent or parabolic cover on the bottom of the box. The box is supported on the grid. In direct lighting, light from the lamps shines directly downward through a translucent or parabolic cover into the room. Generally, the lamps are visible from below. Such direct form of fluorescent lighting is relatively inexpensive, but very plain and utilitarian, without much decorative effect or the ability to upgrade to future lamp technologies of various lengths or quantities and without consideration for simplifying the related maintenance issues associated with the normal operations of a florescent lighting fixture. 
     Also an indirect or reflected type of fluorescent lighting is used with suspended grid ceilings as well as fixed ceilings. In such indirect lighting, the fluorescent lamps are less visible or cannot be seen, but the lighting yields a glow over the room, which can be used to achieve desirable decorative effects. Translucent to opaque covers, panes or lenses are normally used with this type of lighting. The light shines through open space into the room after being reflected. In one form of indirect lighting, the lamps are positioned below the ceiling panels of the suspended ceiling, and reflect against the ceiling into the room. An opaque shield conceals viewing the lamps from the room below. Such installations are generally custom designed and installed, with attendant, generally extensive, expense. 
     To avoid the expense of custom designing and installing indirect lighting which reflects against the ceiling, indirect lighting fixtures can be supported in grid openings as in direct lighting fixtures. In this form of indirect lighting in suspended grid ceilings, the fixture reflects light through a grid opening itself, as in U.S. Pat. No. 5,709,460. In the referenced patent, the lamps are positioned above and behind panels adjacent the openings. The lamps are concealed from view. The light is reflected from a dome over the opening and lamps, into the room below, through the grid opening. A mask or trim is optionally secured to the fixture to reduce the area of the opening through which the reflected light travels, and to further conceal the lamps from view from below. The fixture, including the reflector dome, rests on the grid beam flanges. 
     The light produced by a fluorescent lamp is generated by an electric current being conducted through mercury and inert gases. Fluorescent lighting is generally used, but not always, in indoor applications for both ambient and task lighting. The most commonly used types of fluorescent lamps are 2 foot by 2 foot (2′×2′), 2 foot by 4 foot (2′×4′) and 1 foot by 4 foot (1′×4′) lamps, and others exist of different dimensions, but the others are not as common when associated with applications for ambient or task lighting indoors. Fluorescent fixtures and lamps are preferred for ambient and task lighting in large areas because their visual efficiency creates less direct glare than do incandescent bulbs, and because fluorescent lighting is several times as energy efficient as incandescent lighting. 
     Although fluorescent lamps are generally energy efficient, there are more efficient lamps that use improved electrodes and coatings when compared to older fluorescent lamp types. These lamps produce increased lumen output with improved and substantially lower power consumption. The current lamps can be replaced with energy-saving lamps of lesser wattage and improved visual aspects, but the current fixtures are currently restricted by the necessity of having to use the same length and configuration of lamps as originally designed by the manufacturer, even when lamps of shorter lengths exist and the shorter lamps would allow an even greater improvement in energy savings or more practical to an application task. Also, more energy efficient ballasts are available. These improved ballasts can measurably increase the energy efficiency of the fixture. 
     A large market exists for new light fixtures as well as for the upgrading of existing fluorescent lighting in any appropriate applications, including but not limited to office buildings, residential buildings, warehouses, retail centers, hospitals, airports, schools, colleges, municipal buildings and factories, to install modern energy efficient lamps and ballasts. In addition, many older fluorescent light fixtures were installed because at that time they were the most efficient. With today&#39;s concern for energy efficiency and cost reduction, it is desirable to upgrade a current fluorescent fixture to one having a more energy efficient design related to the application task. When upgrading a fixture, it is important to use a fixture that is flexible and expandable to provide options for future lamp trends and standards. As used herein, expandability refers to the length of the lamps and the flexibility refers to the number of lamps in each fixture. 
     Often times, a single building will have a plurality of fixture sizes. At present, a separate different light fixture is required for each fixture configuration holding one or more fluorescent lamps. In a given structure, this may vary from one or two different fixture configurations to a multiple number of configurations, but is typically not restricted. Manufacturers must therefore make and stock a commensurate number of individual, different fixture configurations for fluorescent lamps. 
     There exists, therefore, a need for a fixture apparatus having enhanced expandability and flexibility with respect to existing structures and the fixtures therein. 
     It would therefore be useful to provide a single light fixture that can hold a multiple number of lamp configurations of various fluorescent lamp lengths and lamp types, and thus the fixture is interchangeable. 
     A feature of the present invention is to provide a light fixture system with the capacity to be converted from a direct lighting fixture to an indirect lighting fixture and capable of providing the various aesthetic, maintenance, and improved efficiencies and options as requested or required to improve or meet desired task lighting. 
     A feature of the present invention is to provide a light fixture system having a fixture housing equipped with various removable perforated slots allowing the fixture the ability to use various lamp lengths, lamp types and lamp configurations without having to purchase or use a new fixture housing. 
     A feature of the present invention is to provide a light fixture system having all the necessary parts being removable and re-configurable in the field or at manufacturing facility to accommodate various lamp configurations reducing the need for an electrician or other skilled technician, or only requiring a non-skilled technician as allowed by the relevant laws or ordnances. 
     Another feature of the present invention is to provide a light fixture system having all the necessary parts being removable and re-configurable in the field or at manufacturing facility to accommodate various lamp types, lengths, wattage, sizes and parts while reducing the need for an electrician or other skilled technician as allowed by the relevant laws or ordnances. 
     Yet another feature of the present invention is to provide a light fixture system having all the necessary parts being removable and re-configurable in the field or manufacturing facility to accommodate various lamp quantities reducing the need for an electrician or other skilled technician as allowed by the relevant laws or ordnances. 
     Another feature of the present invention is to provide a light fixture system that can be easily reconfigured without disengaging the fixture from the ceiling or, in many cases from, its power source. 
     Yet another feature of the present invention is to provide a light fixture system that can be easily serviced without disengaging the fixture from the ceiling or, in many situations from, its power source and typically without the need for an electrician, skilled laborer or other qualified technician as allowed by the relevant laws or ordnances. 
     Another feature of the present invention is to provide a light fixture system such that the fixture is easily accessed for replacement of electronic parts or other possible maintenance considerations without the need of specialty tools or an electrician, skilled laborer or other qualified technician as allowed by the relevant laws or ordnances. 
     Another feature of the present invention is to provide a light fixture system that provides for the installation of the fixture of the present invention without the removal of the existing fixture housing. 
     A feature of the present invention is to provide a light fixture system that has Shadow Box™ trim that is functional with respect to providing proportionality between the fixture configuration and the lamp characteristics of type and length. 
     Another feature of the present invention is to provide a light fixture system that has trim that is decorative. 
     Yet another feature of the present invention is to provide a light fixture system that has trim, which trim can be made of various materials, colors, textures, cuts, logos and designs. 
     Yet another feature of the present invention is to provide a light fixture system that has trim, which trim can be functional for illuminating a logo, image or slogan for advertising, branding or personalizing the fixture and the like. 
     Another feature of the present invention is to provide a light fixture system that has trim, which trim can be removed and replaced without the use of tools, special equipment or a qualified technician. 
     Another feature of the present invention is to provide a light fixture system that has trim, which trim is illuminated by light from the lamps in the fixture or from an auxiliary light source associated with the fixture. 
     Another feature of the present invention is to provide a light fixture system that provides lamp holders for various lamp configurations for several different types of lamps with no restriction as to the length of the lamp. 
     Another feature of the present invention is to provide a light fixture system for converting a fixture to a different configuration. 
     Yet another feature of the present invention is to provide a light fixture system that has trim, which trim is designed for the functionality of maximizing the performance parameters of the fixture in regards to but not limited to shorter lamp lengths, lamp positioning, lamp quantities, lens attachment, and other related features necessary to perform a preferred lighting task such as by way of example indirect lighting. 
     Yet another feature of the present invention is to provide a light fixture system that has trim, in regards to but not limited to, advertising a logo, image or slogan, or illuminating or projecting an image for the purpose of personalizing the fixture to custom specifications. 
     Yet another feature of the present invention is to provide a light fixture system that has trim for advertising, illuminating or projecting an image for the purpose of personalizing the fixture to custom specifications that uses the lamps incorporated in the fixture specifications designed for the task. 
     Yet another feature of the present invention is to provide a light fixture system that has trim for advertising, illuminating or projecting an image for the purpose of personalizing the fixture to custom specifications that uses an alternate illumination source for the purpose of illuminating or projecting the image, where such alternate illumination sources are, without limitation, LED lighting, cold cathode devices, CFLs, fluorescent, and the like. 
     Yet another feature of the invention is to provide a light fixture system where the ballast is mounted to the outside of the fixture so as to be away from the lamps and the associated heat generated thereby for providing a cooler running temperature for the ballast and lamps so as to optimize energy use, ballast life and lamp life. 
     Another feature of the present invention is to provide a light fixture system that can use various ballast lengths as deemed necessary by the lamp and power requirements. 
     Yet another feature of the present invention is to provide a light fixture system wherein the ballast can be changed without the need of tools, special equipment or a skilled technician, i.e., plug and play characteristics. 
     Yet another feature of the present invention is to provide a light fixture system having a ballast that is mounted on the outside of the fixture which ballast is easily accessed for replacement or maintenance. 
     Another feature of the present invention is to provide a light fixture system that provides a ballast cover that may be mounted on the back of the fixture which cover is perforated to allow excess heat to escape in models used in a non-insulated area of operation in which the ceiling insulation does not engage the ballast cover. 
     Yet another feature of the invention is to provide a light fixture system that provides a ballast cover with no openings for use when the fixture is used in an operation where ceiling insulation may contact the ballast cover or wiring surfaces of the fixture. 
     Yet another feature of the present invention is to provide a light fixture system having a ballast having a heat sink engaged therewith to optimize energy use, ballast life and lamp life. 
     Still another feature of the present invention is to provide a light fixture system adaptable for use with multiple ballasts as well as multiple ballast lengths and sizes. 
     Yet still another feature of the present invention is to provide a light fixture system having an install apparatus that engages the perimeter of an opening into which a fluorescent fixture will fit for removably accepting the fixture. 
     A feature of the present invention is to provide a light fixture system having an install apparatus upon which an old fixture rests such that a new fixture can be engaged to the install apparatus without removing the old fixture. 
     Another feature of the present invention is to provide a light fixture system having an install apparatus for accepting a fixture which fixture can be opened by pivoting or disengaging from the install apparatus. 
     Another feature of the present invention is to provide a light fixture system having an install apparatus for associating with the perimeter in which the install apparatus is engaged for providing an air return path. 
     Another feature of the present invention is to provide a light fixture system having an install apparatus for accepting a fixture which fixture can be disengaged and dropped for removal from the install apparatus with or without pivoting with respect to the install apparatus. 
     Yet still another feature of the present invention is to provide a light fixture system having an install extension apparatus that engages the perimeter of an opening into which a fluorescent fixture will fit for removably accepting the fixture and for lifting a low-profile fixture so that a deeper, new fixture can be used under the low-profile fixture. 
     Yet another feature of the present invention is to provide a light fixture that does not directly engage the ceiling, wall or T-grid into which it fits. 
     Yet another feature of the present invention is to provide a light fixture that is adapted for use with a surface mount box, which surface mount box accepts the install apparatus of the present invention. 
     Yet still another feature of the present invention is to provide a light fixture that has light guides for directing light through the opening of a trim member or any desired angle with respect to the Shadow Box™ trim. 
     Additional features and advantages of the invention will be set forth in part in the description which follows, and in part will become apparent from the description, or may be learned by practice of the invention. The features and advantages of the invention may be realized by means of the combinations and steps particularly pointed out in the appended claims. 
     SUMMARY OF THE INVENTION 
     To achieve the foregoing objects, features, and advantages and in accordance with the purpose of the invention as embodied and broadly described herein, a light fixture system is provided. 
     Fixture Housing 
     The housing is equipped with various removable perforated slots allowing the fixture the ability to use various lamp lengths, lamp types and lamp quantities without having to purchase or use a new housing. All the necessary/required parts, such as end plates and lamp holders, are removable and reconfigurable in the field or in the manufacturing facility to allow various lamp and other necessary light needs to be preformed. The housing is an apparatus that assembles without the use of specialty tools. In addition to providing light reflectivity, the additional functions of the housing apparatus is to provide the flexibility to configure the light fixture in any desired configuration with respect to the number of lamps, the length of lamps, the wattage of lamps and any other relevant parameter associated with the configuration of the light fixture. 
     In one embodiment of the present invention, the fixture rotates out of the T-grid with the ballast on the outside of the lamp cavity away from the heat associated with the lamps. 
     Method of assembly: (1) housing, (2) end plates, (3) lock bar, (4) axles, (5) pins with springs, (6) electronics, (7) Shadow Box™ trim, (8) ballast cover, (9) tombstone covers, and (10) lens cover. 
     A preferred embodiment of the present invention is to rotate out of the ceiling to (1) get to the electronics and the lamps, (2) install and remove the fixture, (3) easy maintenance, (4) easily move the entire fixture to another T-grid. 
     A tombstone/lamp holder is provided. The tombstone/lamp holder is adaptable for use with various lamp configurations and for various different types of lamps (e.g., T8-T5) but not restricted to any known lamp. 
     Ballast Configurations 
     The ability to use any ballast length and size as deemed necessary by the lamp and power requirements, and is not restricted to any such ballast. 
     The ballast can be changed without the need of tools, special equipment or hard wiring through the use of electrical connectors, and can be described as “plug and play.” 
     The ballast is preferably mounted on the outside of the fixture, but not limited to that location, which is easily accessed for replacement or maintenance, and can be described as “snap-in and snap-out.” 
     The ballast is mounted to the outside of the fixture away from the lamps and the heat generated which results in a cooler running temperature for the ballast to optimize energy use, ballast life and lamp life. 
     Ballast Cover 
     The ballast cover is mounted on the back of the fixture, but is not limited to that location, and may be perforated to allow excess heat to escape in models used in a noninsulated area of operation in which the ceiling insulation does not cover the ballast cover. 
     An alternate ballast cover with no openings can be used when the fixture is used in an operation where ceiling insulation will contact the ballast cover or wiring surfaces of the fixture. 
     Install Apparatus: 
     The function of the install apparatus is to provide the removable engagement of the light fixture with any ceiling, wall, T-grid or the like. 
     The method in which the install apparatus is installed varies with the required situation. Preferably, the install apparatus can be installed by placing the individual pieces into the aperture associated with the ceiling, wall, T-grid or the like. 
     Alternately, the install apparatus is easily assembled and then installed as a complete unit in the aperture associated with the ceiling, wall, T-grid or the like utilizing the interlocking panels. 
     The install apparatus allows the fixture to be easily accessed for replacement of electronic parts or other possible maintenance needs because the light fixture pivots from the install apparatus for providing easy access to the fixture. In one embodiment, the light fixture pivots from the channel lock groves of the install apparatus for providing easy access to the fixture. 
     Further, the install apparatus provides for the installation of the light fixture without the removal of the existing fixture, if desired. 
     The method of using an install apparatus with a light fixture for removeably affixing the light fixture in a ceiling/wall structure having an opening therein comprises (1) engaging the perimeter of the opening with the install apparatus, (2) engaging the light fixture with the install apparatus such that the light fixture is removeably engaged with respect to the ceiling/wall structure, (3) pivoting or disengaging the fixture from the install apparatus for providing easy access to all parts of the fixture for easy operation and maintenance of the fixture and (4) returning of the fixture to a mounted position during operation. 
     The method of using a install apparatus with a light fixture for removeably affixing the light fixture in a ceiling/wall structure having another existing light fixture in an opening therein, the method comprises (1) disengaging the existing light fixture from the opening in a direction away from the direction the existing fixture casts light, (2) engaging the perimeter of the opening with the install apparatus, and (3) engaging the light fixture with the install apparatus such that the light fixture is removeably engaged with the install apparatus and the existing light fixture is resting on the light fixture which is thus removeably engaged with respect to the ceiling/wall structure. Further, the fixture by itself can be used with its own “jack-up” kit device. This allows the fixture to be made deeper without changing or installing a “jack up kit” to the install apparatus. 
     The method of converting an existing light fixture for removeably affixing the light fixture in a ceiling/wall structure having an opening therein, the method comprises (1) removing the back of the fixture, (2) adapting a pivot/hinge/latch mechanism between the fixture and the removed back and (3) pivoting the back about the mechanism such that the back drops from the opening and can be accessed for maintenance. The pivoting back could also incorporate the use of tear out tabs for various lamp lengths. 
     The method of converting an existing light fixture for removeably affixing the light fixture in a ceiling/wall structure having an opening therein, the method comprises (1) using the housing of an existing fixture, (2) adapting a pivot/hinge/latch mechanism between the existing housing and a smaller fixture that fits into the housing and (3) pivoting the smaller fixture about the mechanism such that the smaller fixture pivots or drops from the housing of the existing fixture and can be accessed for maintenance. Alternately, the present invention provides a method of manufacturing a new light fixture for removeably affixing the light fixture in a ceiling/wall structure having an opening therein, the method comprises (1) using the housing of a fixture, (2) adapting a pivot/hinge/latch mechanism between the housing and a smaller fixture such that the smaller fixture fits into the housing and (3) pivoting the smaller fixture about the mechanism such that the smaller fixture pivots or drops from the housing and can be accessed for maintenance. 
     It can be appreciated by those skilled in the art that many configurations are possible and are not limited and many different configurations are available in practicing the present invention. Examples of configurations, without limitation, are: (1) install apparatus, (2) cover plate for ballast cover hole, optional, (3) ballast, optional, (4) lamps; (1) lamps, (2) ballast, (3) install apparatus, (4) wiring harness, optional; and (1) lamps, (2) ballast, (3) install apparatus, (4) wiring harness, optional, (5) plug &amp; play connectors, optional, (6) blanks for ballast cover and lamp holders. 
     Shadow Box™ Trim 
     The Shadow Box™ trim can be removed and attached to the light fixture without tools or attachment mechanisms. One Shadow Box™ trim is easily interchanged with another Shadow Box™ trim. The Shadow Box™ trim provides decorative trim which can be made of various materials, colors, textures, designs and other characteristics. The Shadow Box™ trim can be manufactured with corporate logos or other branding or advertising designs and is not limited to corporate designs. For example, graphic designs, images of animals, equipment, directions, and the like can be adapted for use with the Shadow Box™ trim. The Shadow Box™ trim can be rotated and laid into place so as to be removed and replaced without being lifted above the T-grid. 
     The Shadow Box™ trim can also provide a means for an indirect lighting apparatus. Further, the Shadow Box™ trim can be used with a ceiling mount apparatus to place a light fixture on a solid ceiling or wall. 
     Thus, the Shadow Box™ trim can be of any color, texture, material or other characteristic. More particularly, but without limitation, the Shadow Box™ trim can be plain, bear a design, bear a picture of an animal, person, figure, or any other item, bear a logo, bear a particular branding, or convey advertising, all referred to simply as the design. The Shadow Box™ trim provides that the design therein can be illuminated. The illumination of the design in the Shadow Box™ trim can be provided by the lamps associated with the light fixture. Also, the design in the Shadow Box™ trim can be illuminated by an alternate light source. Examples of such alternate light sources are, without limitation, LEDs, lasers, cold cathode devices, CFLs and the like. The design in the Shadow Box™ trim can be displayed in different colors. The coloring of the design can be achieved by using colored mylar film, colored LEDs, prisms, or the like. The Shadow Box™ trim has quick release hinge tabs to easily pivot, remove and replace the trim. 
     Methods: 
     One embodiment of the present invention is a method of installing a light fixture. The method of installing a light fixture as practiced by the present invention into an aperture in a ceiling, wall or box where the aperture is defined by a perimeter comprises the steps of engaging an install apparatus with the perimeter of the aperture, engaging a fixture in a hanging relationship with the install apparatus, connecting a power source to the fixture, rotating the hanging fixture until the fixture is operational or functional with the perimeter of the aperture, securing the fixture in a flush or operational relationship with the perimeter of the aperture, and providing power to the fixture for lighting the fixture. 
     Another embodiment of the present invention is a method of changing a lamp in a light fixture. The method of changing a lamp in a light fixture as practiced by the present invention wherein the light fixture is engaged in a pivotal relationship by a trim member comprises the steps of disengaging a latch mechanism between the fixture and the trim member which latch mechanism removably secures the trim member to the fixture, pivoting the trim member away from the fixture such that the lamp in a cavity in the fixture is exposed and the trim member is hanging from a portion of the fixture, removing the old lamp from the cavity, and engaging a new lamp in the cavity of the fixture without displacing any other lamps or components, pivoting the trim member for securing the lamp in the cavity, and engaging the latch mechanism for securing the trim member to the fixture. 
     Yet another embodiment of the present invention is a method of changing a ballast. The method of changing a ballast in a light fixture as practiced by the present invention wherein the light fixture is engaged in a pivotal relationship with an install apparatus comprising the steps of disengaging a latch mechanism between the fixture and the install apparatus which latch mechanism removably secures the fixture to the install apparatus, pivoting the fixture away from the install apparatus such that the ballast cover is exposed and the fixture is hanging from a portion of the install apparatus, removing the ballast cover and the old ballast from the fixture, engaging a new ballast and the ballast cover on the fixture, pivoting the fixture for engagement with the install apparatus, and engaging the latch mechanism for securing the fixture to the install apparatus. 
     Yet still another embodiment of the present invention is a method of changing the location of a tombstone holder with respect to a fixture. The method of changing the location of a tombstone holder with respect to a fixture as practiced by the present invention comprises the steps of accessing the tombstone holder, releasing the tombstone holder from the fixture housing, relocating the tombstone holder to another location, securing the tombstone holder to the fixture housing at the new location. 
     Still another embodiment of the present invention is a method of using a Shadow Box™ trim or trim member with a light fixture. The method of using a Shadow Box™ trim or trim member with a light fixture as practiced by the present invention wherein the light fixture is engaged in a pivotal relationship by a trim member comprising the steps of disengaging a latch mechanism between the fixture and the trim member which latch mechanism removably secures the trim member to the fixture, pivoting the trim member away from the fixture such that the trim member is hanging from a portion of the fixture, removing the trim member from the fixture, engaging a new trim member with the fixture, pivoting the trim member for removably engaging the fixture, engaging the latch mechanism for securing the trim member to the fixture. 
     Yet another embodiment of the present invention is a method of installing an install apparatus in a T-grid. The method of installing an install apparatus in a T-grid as practiced by the present invention comprises the steps of engaging a first lateral member in congruence with a first lateral side of the T-grid, engaging a second lateral member in congruence with a second lateral side of the T-grid, engaging a first longitudinal member in congruence with a first longitudinal side of the T-grid, interlocking the first lateral member and the first longitudinal, interlocking the second lateral member and the first longitudinal, engaging a second longitudinal member in congruence with a second longitudinal side of the T-grid, interlocking the first lateral member and the second longitudinal member, interlocking the second lateral member and the second longitudinal member such that the lateral members and the longitudinal members define the install apparatus. 
     Another embodiment of the present invention is a method of changing the lamp configurations or the lamp quantities comprising the steps of accessing the tombstone holder, releasing the tombstone holder from the fixture housing, engaging a new tombstone holder with the desired number of tombstones, and securing the new tombstone holder to the fixture housing. 
     Yet another embodiment of the present invention is a method of using a light fixture extension as practiced by the present invention for placement into an aperture in a ceiling, wall or box where the aperture is defined by a perimeter comprises the steps of removing trim member from the fixture, disengaging the fixture from the install apparatus via a latch mechanism between the fixture and the install apparatus, removing the existing hardware, replacing the hardware onto an extension, attaching the extension to the fixture to the correct corresponding positions, adding an end extension to the end plates, replacing the fixture for engagement into the install apparatus via a latch mechanism between the fixture and the install apparatus, and replacing the trim member and locking into position. 
     Yet still another embodiment of the present invention is a method of using an install apparatus extension as practiced by the present invention for placement into an aperture in a ceiling, wall or box where the aperture is defined by a perimeter comprises the steps of removing the fixture from the install apparatus, removing the install apparatus from the opening and attaching extension elements to the install apparatus, replacing the install apparatus into the ceiling or wall cavity, and replacing the fixture and engaging into the install apparatus via a latch mechanism between the fixture and the install apparatus. 
     Still another embodiment of the present invention is a method of adapting a light fixture as practiced by the present invention for casting indirect light comprises the steps of removing the trim member, removing the lamps, lowering the fixture from the install apparatus, removing the electronics, adding the new electronics, rotating the fixture back into the install apparatus, securing the fixture into the install apparatus, installing the indirect reflective shield, adding the lamps, attaching the indirect apparatus to trim member, attaching the trim member to the fixture, and rotating the trim member into the fixture and securing it in place. 
     Yet still another embodiment of the present invention is a method of using an install apparatus with a light fixture as practiced by the present invention. The method of using an install apparatus with a light fixture as practiced by the present invention for placement into an aperture in a ceiling, wall or box where the aperture is defined by a perimeter comprises the steps of pushing the existing fixture up, engaging an install apparatus with the perimeter of the aperture, engaging a fixture in a pivotally hanging relationship with the install apparatus such that the existing fixture is resting above the fixture and the install apparatus, connecting a power source to the fixture, rotating the hanging fixture until the fixture is operational with the perimeter of the aperture, securing the fixture in a flush or operational relationship with the perimeter of the aperture, and providing power to the fixture for lighting the fixture. 
     Yet another feature of the present invention is to provide a light fixture system for providing indirect light having an installation apparatus that engages the perimeter of an opening into a trim member where an indirect lighting cover/mechanism can be attached without the aid of specialty tools or skilled labor for converting the direct lighting configuration into an indirect light configuration. 
     Yet still another feature of the present invention is to provide a light fixture system having an installation apparatus that converts the electrical components from a direct lighting system into an indirect lighting system without the aid of specialty tools or skilled labor. 
     Additional advantages and modification will readily occur to those skilled in the art. The invention in its broader aspects is therefore not limited to the specific details, representative apparatus, and the illustrative examples shown and described herein. Accordingly, the departures may be made from the details without departing from the spirit or scope of the disclosed general inventive concept. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
       The accompanying drawings which are incorporated in and constitute a part of the specification, illustrate preferred embodiments of the invention and together with the general description of the invention given above and the detailed description of the preferred embodiment given below, serve to explain the principles of the invention. 
         FIG. 1  is a perspective view of a preferred embodiment of the light fixture apparatus of the present invention with the Shadow Box™ trim pivoted from and disposed at a 90 degree angle to the fixture/troffer. 
         FIG. 2  is a perspective view of a preferred embodiment of the light fixture apparatus of the present invention with the fixture/troffer pivoted from and disposed at a 90 degree angle to the install apparatus which is engaged with a T grid. 
         FIG. 3  is a perspective view of a preferred embodiment of the light fixture apparatus of the present invention showing the fixture/troffer, the Shadow Box™ trim and the install apparatus. 
         FIG. 4  is a perspective view of a preferred embodiment of the housing associated with the light fixture apparatus of the present invention. 
         FIG. 5  is a plan view of the back side a preferred embodiment of the housing associated with the light fixture apparatus of the present invention. 
         FIG. 5A  is a plan view of the back side another preferred embodiment of the housing associated with the light fixture apparatus of the present invention. 
         FIG. 6  is an end view of a preferred embodiment of the housing associated with the light fixture apparatus of the present invention. 
         FIG. 6A  is an end view of another preferred embodiment of the housing associated with the light fixture apparatus of the present invention. 
         FIG. 7  is a plan view of a preferred embodiment of the Shadow Box™ trim associated with the light fixture apparatus of the present invention. 
         FIG. 8  is a perspective view of a preferred embodiment of latch mechanism associated with the light fixture apparatus of the present invention. 
         FIG. 9  is a perspective view of another preferred embodiment of latch mechanism associated with the light fixture apparatus of the present invention. 
         FIG. 10  is a perspective view of a preferred embodiment of ballast cover associated with the light fixture apparatus of the present invention. 
         FIG. 11  is a perspective view of a preferred embodiment of ballast cover associated with the light fixture apparatus of the present invention that provides for the venting of heat from the ballast cover. 
         FIG. 12  is a perspective view of a preferred embodiment of the light fixture apparatus of the present invention engaged with a T-grid as seen from below illustrating the promotional use of a logo with the Shadow Box™ trim. 
         FIG. 13  is a perspective view of a preferred embodiment of the light fixture apparatus of the present invention engaged with a T-grid as seen from below illustrating the promotional use of a design with the Shadow Box™ trim. 
         FIG. 14  is a flow chart illustrating a preferred embodiment of the method of installing a light fixture as practiced by the present invention. 
         FIG. 15  is a flow chart illustrating a preferred embodiment of the method of changing a lamp as practiced by the present invention. 
         FIG. 16  is a flow chart illustrating a preferred embodiment of the method of changing a ballast as practiced by the present invention. 
         FIG. 17  is a flow chart illustrating a preferred embodiment of the method of changing the location of a tombstone holder with respect to a fixture as practiced by the present invention. 
         FIG. 18  is a flow chart illustrating a preferred embodiment of the method of using a shadow box with a light fixture as practiced by the present invention. 
         FIG. 19  is a flow chart illustrating a preferred embodiment of the method of installing an install apparatus as practiced by the present invention. 
         FIG. 20  is a flow chart illustrating a preferred embodiment of the method of changing the lamp configurations or the lamp quantities as practiced by the present invention. 
         FIG. 21  is a flow chart illustrating a preferred embodiment of the method of changing the lamp types as practiced by the present invention. 
         FIG. 22  is a flow chart illustrating a preferred embodiment of the method of using a light fixture extension as practiced by the present invention. 
         FIG. 23  is a flow chart illustrating a preferred embodiment of the method of using an install apparatus extension as practiced by the present invention. 
         FIG. 24  is a flow chart illustrating a preferred embodiment of the method of adapting a light fixture as practiced by the present invention for casting indirect light. 
         FIGS. 25A ,  25 B,  25 C,  25 D are perspective views of a preferred embodiment of an indirect lighting trim for use with the light fixture apparatus of the present invention. 
         FIG. 26  is a perspective view of a preferred embodiment of a ballast rail of the present invention. 
         FIG. 27  is an end view of the preferred embodiment of a ballast rail of the present invention as illustrated in  FIG. 26 . 
         FIG. 28  is a longitudinal view of the preferred embodiment of a ballast rail of the present invention as illustrated in  FIG. 26 . 
         FIG. 29  is a plan view of the preferred embodiment of a ballast rail of the present invention as illustrated in  FIG. 26  engaged with a collet. 
         FIG. 30  is a plan view of the preferred embodiment of the collet of the present invention as illustrated in  FIG. 29 . 
         FIG. 31  is a perspective view of a preferred embodiment of a latch bar of the present invention. 
         FIG. 31A  is a longitudinal view of the preferred embodiment of the latch bar of the present invention as illustrated in  FIG. 31 . 
         FIG. 31B  is a detail view of the preferred embodiment of the latch bar of the present invention as illustrated in  FIG. 31A . 
         FIG. 31C  is a longitudinal, break-away view of the preferred embodiment of the latch bar of the present invention as illustrated in  FIG. 31 . 
         FIG. 31D  is a detail view of the preferred embodiment of the latch of the latch bar of the present invention as illustrated in  FIG. 31A . 
         FIG. 32A  is a perspective view of the preferred embodiment of the lens receiver guide of the present invention. 
         FIG. 32B  is an elevation view of the preferred embodiment of the lens receiver guide of the present invention as illustrated in  FIG. 32A . 
         FIG. 32C  is a plan view of the preferred embodiment of the lens receiver guide of the present invention as illustrated in  FIG. 32A . 
         FIG. 33A  is a perspective view of a preferred embodiment of the lens clip of the present invention. 
         FIG. 33B  is an elevation view of the preferred embodiment of the lens clip of the present invention as illustrated in  FIG. 33A . 
     
    
    
     Additional advantages and modification will readily occur to those skilled in the art. The invention in its broader aspects is therefore not limited to the specific details, representative apparatus, and the illustrative examples shown and described herein. Accordingly, the departures may be made from the details without departing from the spirit or scope of the disclosed general inventive concept. 
     DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS 
     The above general description and the following detailed description are merely illustrative of the generic invention, and additional modes, advantages, and particulars of this invention will be readily suggested to those skilled in the art without departing from the spirit and scope of the invention. 
       FIG. 1  is a perspective view of a preferred embodiment of the light fixture apparatus  100  of the present invention with the Shadow Box™ trim  300  pivoted from and disposed at a 90 degree angle to the fixture/troffer  200 . The fixture/troffer  200  and the Shadow Box™ trim  300  have a detachable relationship as well as a pivoting relationship. Thus, the Shadow Box™ trim  300  can either be removed completely from the fixture/troffer  200 , or the Shadow Box™ trim  300  can be in a pivoting relationship with the fixture/troffer  200 . 
     The fixture/troffer  200  comprises a base  202 , end plates  204 , lamp holder covers  206 , a ballast cover  208 , a fixture release mechanism  210  and a pivot member  212  for the fixture/troffer  200 . The base  202  has a convexed surface  202 A and a concaved surface  202 B. The end plates  204  have an outer surface  204 A and an inner surface  204 B. The concaved surface  202 B of the base  202  and the inner surfaces  204 B of the end plates  204  form a cavity  203 . The cavity  203  accepts one or more lamps  12 . The lamps are held in place by a plurality of lamp holders or tombstones  205 . 
     The Shadow Box™ trim  300  comprises a perimeter structure  310 , a pivot member  312 , a display surface  314 , an engaging mechanism  320  and a lens  330 . The pivot member  312  of the Shadow Box™ trim  300  removeably engages the perimeter of the base  202  of the fixture/troffer  200  such that the Shadow Box™ trim  300  pivots about a perimeter of the fixture/troffer  200 . In  FIG. 1 , the Shadow Box™ trim  300  is illustrated to be in an open-pivoted relationship with and disposed at a  90  degree angle to the fixture/troffer  200 . It can be readily appreciated that the Shadow Box™ trim  300  can be moved about the pivot member  312  to be in a closed-pivoted relationship with the fixture/troffer  200 . The Shadow Box™ trim  300  is held in a closed-pivoted relationship with the fixture/troffer  200  by the engaging mechanism  320  interacting with the release mechanism  220 . 
       FIG. 2  is a perspective view of a preferred embodiment of the light fixture apparatus  100  of the present invention with the fixture/troffer  200  pivoted from and disposed at a  90  degree angle to the install apparatus  400  which is engaged with a T grid  10 . The fixture/troffer  200  and the install apparatus  400  have a detachable relationship as well as a pivoting relationship. Thus, the fixture/troffer  200  can either be removed completely from the install apparatus  400 , or the fixture/troffer  200  can be in a pivoting relationship with the install apparatus  400 . 
     The fixture/troffer  200  illustrated in  FIG. 2  shows the concaved side  202 A. The fixture/troffer  200  is illustrated with the lamp holder covers  206 , the tombstone holders  207 , the ballast  20 , the power source-to-ballast connectors  260 , the ballast-to-tombstone connectors  270 , the convexed surface  202 A of the base  202 , the ballast cover  208  and the ventilation grid  209  in the ballast cover  208 . 
     The install apparatus  400  is shown engaged with the T-grid  10 . The install apparatus  400  includes the lateral members  410 A,  410 B and the longitudinal members  430 A,  430 B [latter not shown]. The longitudinal members  430 A,  430 B of the install apparatus  400  are illustrated engaging longitudinal portions of the T-grid  10 . The longitudinal members  430 A,  430 B are preferably made of angled material such as for example U-shaped metal. Particularly, the longitudinal member  430 A shown in  FIG. 2  illustrates the concaved side thereof with a smaller side engaging the T-grid  10  and the other smaller side remote from the T-grid  10 . The longitudinal members  430 A,  430 B may have one or more extensions from a remote end for removeably engaging the lateral members  410 A,  410 B, such as one or more extensions [not shown]. The extensions protruding from the longitudinal members  430 A,  430 B can be configured to be accepted in the respective lateral members  410 A,  410 B to form a detent [not shown] at an end location  422  for locking the movement of the lateral members  410 A,  410 B and the longitudinal members  430 A,  430 B. Also, the end remote from the detent may be secured to the T-grid  10  by use of a screw in the holes  412  illustrated in the lateral members  410 A,  410 B and the longitudinal members  430 A,  430 B or by any other conventional securing mechanism. 
     Of importance is the channel-lock feature of the fixture/troffer  200  relative to the install apparatus  400 . The fixture/troffer  200  has the pivot member  212  extending from one side of its perimeter. The pivot member  212  has at both its extremities an expanded portion that has a larger radial dimension than the main portion of the pivot member  212 . The install apparatus  400  has one or more slots  414  in each lateral member  410 A,  410 B. The slot  414  has a larger portion  414 A and a smaller portion  414 B. The larger portion  414 A is for receiving there through the expanded portion of the pivot member  212 . As the pivot member  212  is pushed from the larger portion  414 A into the smaller portion  414 B of the lateral member  410 A,  410 B, the pivot member  212  is secured in the smaller portion  414 B of the lateral members  410 A,  410 B such that the expanded portion of the pivot member  212  is on one side of the lateral members  410 A,  410 B and the main portion of the pivot member  212  along with the fixture/troffer  200  are on the other side of the lateral members  410 A,  410 B such that the fixture/troffer  200  is encompassed by the pivot member  212 . Also illustrated is alternate slot  415  which can be used in place of the slot  414 . It can be appreciated by those skilled in the art that alternate means are or could be available to perform the same function as the channel-lock feature of the present invention and such alternate means are encompassed by the present invention. 
     Also of importance is the pivoting of the fixture/troffer  200  about the pivot member  212  such that the fixture release mechanism  210  [see  FIG. 1 ] is removably engaged with the install apparatus  400  such that the fixture/troffer  200  is held in place within the T-grid  10  on the surface  420 . 
       FIG. 3  is a perspective view of a preferred embodiment of the light fixture apparatus  100  of the present invention showing the fixture/troffer  200 , the Shadow Box™ trim  300  and the install apparatus  400 . The install apparatus  400  is illustrated with the lateral members  410  and the longitudinal members  430 . The Shadow Box™ trim  300  is illustrated with the perimeter structure  310  and the display surface  314 . The fixture/troffer  200  includes the base  202 , the end plates  204 , the lamp holder covers  206 , the ballast cover  208  and the lock bar assembly  220 . The base  202  has a plurality of tombstone adjustment slots  232  and one or more ballast slots  234 . The tombstone adjustment slots  232  are provided in the form of knock-outs so that, depending on the length of the lamp to be used with the light fixture apparatus  100 , the tombstone adjustment slots  232  corresponding to the lamp length used can be knocked out. Thus, it is appreciated by those skilled in the art that any lamp length or combination there of can be used with the light fixture apparatus  100  of the present invention. Similarly, the ballast adjustment slot  234  is provided for use with a ballast retainer [see  FIG. 5 ] and ballast clip [not shown]. The ballast retainer provides that a conventional ballast having a projected portion can be slid under the ballast retainer for securing one end of the ballast. The ballast clip slideably engages the ballast adjustment slot  234  and the ballast for securing the ballast, regardless of size and shape, between the ballast retainer, the base  202  and the ballast clip. The ballast cover  208  has a ventilation grid  209 . 
       FIG. 4  is a perspective view of a preferred embodiment of the housing or base  202  associated with the light fixture apparatus  100  of the present invention.  FIG. 4  illustrates the ability of the light fixture apparatus  100  of the present invention to be adapted for use with any lamp and any ballast. The ability to adapt to any lamp is derived from the ability to locate the tombstones  205  [see  FIG. 1 ] that hold the lamps at any location, and thus, for accepting a lamp of any dimension, regardless of length or radius. The tombstone adjustment slots  232 A,  232 AA are provided for holding tombstones at the greatest distance apart, and thus, for accepting a lamp of maximum length for the base  202  shown. The intermediate tombstone adjustment slots  232 B,  232 BB are provided for holding tombstones at an intermediate distance apart, and thus, for accepting a lamp of intermediate length for the base  202  shown. The tombstone adjustment slots  232 C,  232 CC are provided for holding tombstones at the shortest distance apart, and thus, for accepting a lamp of a minimum length for the base  202  shown. Since the tombstone adjustment slots  232  span the width of the base  202 , tombstones  205  can be placed in any number across the base  202  with a lamp associated with each remote pair of tombstones  205 . The limiting factor with respect to the number of lamps that can be adapted for use in the light fixture apparatus  100  of the present invention is that the sum of the diameters of all the lamps is less that the length of the respective tombstone adjustment slots  232 . A ballast adjustment slot  234  is illustrated in the convexed surface  202 A to operate in a similar manner as do the tombstone adjustment slots  232 . 
       FIG. 5  is a plan view of the preferred embodiment of the concaved surface  202 B of the housing  202  associated with the light fixture apparatus  100  of the present invention as illustrated in  FIG. 4 . The tombstone adjustment slots  232 A,  232 AA,  232 C,  232 CC for the maximum length lamp and the minimum length lamps are illustrated as knock-outs. The tombstone adjustment slots  232 B,  232 BB for the intermediate length lamps are illustrated as slots ready to accept the tombstones  205  which are secured by the tombstone holders  207  as illustrated in  FIG. 2 . The ballast adjustment slot  234  is provided for use with a ballast retainer [in line with the ballast adjustment slot  234 ] and the ballast clip [not shown]. The ballast retainer provides that a conventional ballast having a projected portion can be slid under the ballast retainer for securing one end of the ballast. The ballast clip slideably engages the ballast adjustment slot  234  and the ballast for securing the ballast, regardless of size and shape, between the ballast retainer, the base  202  and the ballast clip. As is appreciated by those skilled in the art, the ballast clip can be any configuration which effects the removable engagement of the ballast with the ballast retainer, the base  202  and the ballast clip. 
       FIG. 6  is an end view of a preferred embodiment of the housing  202  associated with the light fixture apparatus  100  of the present invention. The housing  202  is illustrated to view the convexed portion  202 A of the housing  202  with the cancaved portion  202 B of the housing  202 . The extremities illustrated in  FIG.6  are illustrated in  FIGS. 8 and 9  to better illustrate possible release mechanisms. 
       FIG. 5A  is a plan view of the back side another preferred embodiment of the housing  1202  associated with the light fixture apparatus of the present invention. The housing  1202  comprises a concaved portion  1202 B, a first angled portion  1203 , a second angled portion  1205 , a third angled portion  1207 , a planer portion  1209  and a flat portion  1211 . The concaved portion  1202 B has therein a plurality of tombstone adjustment slots  1232 A,  1232 AA,  1232 B,  1232 BB,  1232 C,  1232 CC. The planer portion  1209  comprises one or more knock-outs  1241 . Also, the planer portion  1209  comprises one or more T-shaped apertures  1243  that are engaging and/or pivoting points for engaging elements. Further, the planer portion  1209  comprises one or more apertures  1245 . 
       FIG. 6A  is an end view of another preferred embodiment of the housing  1202  associated with the light fixture apparatus of the present invention. The housing  1202  comprises a concaved portion  1202 B, a convexed portion  1202 A, a first angled portion  1203 , a second angled portion  1205 , a third angled portion  1207 , a planer portion  1209  and a flat portion  1211 . 
       FIG. 7  is a plan view of a preferred embodiment of the Shadow Box™ trim  300  associated with the light fixture apparatus  100  of the present invention. The Shadow Box™ trim  300  comprises a perimeter structure  310 , a display surface  314 , a light opening  330 A, a pivot member  312 A and an engaging mechanism  320 . 
     The Shadow Box™ trim  300  can be removed and attached to the light fixture  100  without tools or attachment mechanisms. Any Shadow Box™ trim  300  is easily interchanged with another Shadow Box™ trim  300 . The Shadow Box™ trim  300  provides decorative trim which can be made of various materials, colors, textures and designs to depict corporate logos or other branding or advertising designs. The Shadow Box™ trim  300  may be, but not required to be, rotated and laid into place so as to be removed and replaced without being lifted above the T-grid. The Shadow Box™ trim  300  can also provide a means for an indirect lighting apparatus. Further, the Shadow Box™ trim  300  can be adapted for use with any fixture. 
     More particularly, but without limitation, the Shadow Box™ trim  300  can be plain, bear a design, bear a picture, bear a logo, bear a particular branding, or convey advertising, all referred to simply as the design. The Shadow Box™ trim  300  provides that the design therein can be illuminated. The illumination of the design in the Shadow Box™ trim  300  can be provided by the lamps associated with the light fixture. Also, the design in the Shadow Box™ trim  300  can be illuminated by an alternate light source. Examples of such alternate light sources are, without limitation, LEDs, lasers, cold cathode devices, CFLs and the like. The design in the Shadow Box™ trim  300  can be displayed in different colors. The coloring of the design can be achieved by using colored mylar film, colored LEDs, prisms, or the like. The Shadow Box™ trim  300  has quick release-engaging mechanism  320  to easily pivot, remove and replace the Shadow Box™ trim  300 . 
       FIG. 8  is a perspective view of a preferred embodiment of latch mechanism  225  associated with the light fixture apparatus  100  of the present invention. 
       FIG. 9  is a perspective view of another preferred embodiment of latch mechanism  226  associated with the light fixture apparatus  100  of the present invention. 
       FIG. 10  is a perspective view of a preferred embodiment of the ballast cover  208  associated with the light fixture apparatus  100  of the present invention. The ballast cover  208  is an elongate member such that any size ballast can be covered. The ballast cover  208  has open knock-outs  208 A for accepting the tombstone holder cover for the lamp holders  206 . Further, the ballast cover  208  has closed knock-outs  208 B which are available for knocking out and thereafter for accepting the tombstone holder cover for the lamp holders  206 . Typically, the ends of the ballast cover  208  are closed. Also, the ballast cover  208  has an opening between the open knock-outs  208 A for accepting power from a remote power source. 
       FIG. 11  is a perspective view of a preferred embodiment of ballast cover  208  associated with the light fixture apparatus  100  of the present invention that provides for the venting of heat from the ballast cover  208  by a ventilation grid  209 . The ballast cover  208  has open knock-outs  208 A for accepting the tombstone holder cover for the lamp holders  206 . Further, the ballast cover  208  has closed knock-outs  208 B which are available for knocking out and thereafter for accepting the tombstone holder cover for the lamp holders  206 . 
       FIG. 12  is a perspective view of a preferred embodiment of the light fixture apparatus  100  of the present invention engaged with a T-grid  10  as seen from below illustrating the promotional use of a logo  340  with the Shadow Box™ trim  300 . The logo  340  is in the display surface  314  of the Shadow Box™ trim  300 . The logo  340  can be lighted by the lamps in the fixture/troffer  200 , or alternately, can be lighted by auxiliary means so the logo  340  remains illuminated when the lamps in the light fixture apparatus  100  are off. 
       FIG. 13  is a perspective view of a preferred embodiment of the light fixture apparatus  100  of the present invention engaged with a T-grid  10  as seen from below illustrating the promotional use of a design  350  with the Shadow Box™ trim  300 . The design  350  is in the display surface  314  of the Shadow Box™ trim  300 . The design  350  can be lighted by the lamps in the fixture/troffer  200 , or alternately, can be lighted by auxiliary means so the design  350  remains illuminated when the lamps in the light fixture apparatus  100  are off. 
       FIG. 14  is a flow chart illustrating a preferred embodiment of the method of installing a light fixture as practiced by the present invention. The method of installing a light fixture as practiced by the present invention into an aperture in a ceiling, wall or box where the aperture is defined by a perimeter comprises the steps of engaging an install apparatus with the perimeter of the aperture, engaging a fixture in a hanging relationship with the install apparatus, connecting a power source to the fixture, rotating the hanging fixture until the fixture is operational with the perimeter of the aperture, securing the fixture in a operational relationship with the perimeter of the aperture, and providing power to the fixture for lighting the fixture. 
       FIG. 15  is a flow chart illustrating a preferred embodiment of the method of changing a lamp in a light fixture as practiced by the present invention. The method of changing a lamp in a light fixture as practiced by the present invention wherein the light fixture is engaged in a pivotal relationship by a trim member comprising the steps of disengaging the trim member from the fixture to expose a lamp cavity, pivoting the trim member away from the fixture such that the lamp in a cavity in the fixture is exposed and the trim member is hanging from a portion of the fixture, removing the old lamp from the cavity, and engaging a new lamp in the cavity without displacing any other lamp or component, pivoting the trim member for securing the lamp in the cavity, and engaging the latch mechanism for securing the trim member to the fixture. 
       FIG. 16  is a flow chart illustrating a preferred embodiment of the method of changing a ballast as practiced by the present invention. The method of changing a ballast in a light fixture as practiced by the present invention wherein the light fixture is engaged in a pivotal relationship with an install apparatus comprising the steps of disengaging a latch mechanism between the fixture and the install apparatus, pivoting the fixture away from the install apparatus to expose the ballast area, removing the old ballast from the fixture, engaging a new ballast on the fixture, pivoting the fixture for engagement with the install apparatus, and securing the fixture to the install apparatus. 
       FIG. 17  is a flow chart illustrating a preferred embodiment of the method of changing the location of a tombstone holder with respect to a fixture for changing lamps having different lengths as practiced by the present invention. The method of changing the location of a tombstone holder with respect to a fixture for changing lamps having different lengths comprising the steps of accessing the tombstone holder, releasing the tombstone holder from the fixture housing, relocating the tombstone holder to another location, and securing the tombstone holder to the fixture housing at the new location. 
       FIG. 18  is a flow chart illustrating a preferred embodiment of the method of using a Shadow Box™ trim or trim member with a light fixture as practiced by the present invention. The method of using a Shadow Box™ trim or trim member with a light fixture as practiced by the present invention wherein the light fixture is engaged in a pivotal relationship by a trim member comprising the steps of disengaging a latch mechanism between the fixture and the trim member which latch mechanism removably secures the trim member to the fixture, pivoting the trim member away from the fixture such that the trim member is hanging from a portion of the fixture, removing the trim member from the fixture, engaging a new trim member with the fixture, pivoting the trim member for removably engaging the fixture, and engaging the latch mechanism for securing the trim member to the fixture. 
       FIG. 19  is a flow chart illustrating a preferred embodiment of the method of installing an install apparatus in a T-grid as practiced by the present invention. The method of installing an install apparatus in a T-grid as practiced by the present invention comprising the steps of engaging a first lateral member in congruence with a first lateral side of the T-grid, engaging a second lateral member in congruence with a second lateral side of the T-grid, engaging a first longitudinal member in congruence with a first longitudinal side of the T-grid, interlocking the first lateral member and the first longitudinal, interlocking the second lateral member and the first longitudinal, engaging a second longitudinal member in congruence with a second longitudinal side of the T-grid, interlocking the first lateral member and the second longitudinal member, interlocking the second lateral member and the second longitudinal member such that the lateral members and the longitudinal members define the install apparatus. 
       FIG. 20  is a flow chart illustrating a preferred embodiment of the method of changing the lamp configurations or the lamp quantities as practiced by the present invention. The method of changing the lamp configurations or the lamp quantities comprises the steps of accessing the tombstone holder, releasing the tombstone holder from the fixture housing, engaging a new tombstone holder with the desired number of tombstones and securing the new tombstone holder to the fixture housing. 
       FIG. 21  is a flow chart illustrating a preferred embodiment of the method of changing the lamp types as practiced by the present invention. The method of changing the lamp types comprises the steps of accessing the tombstone holder, releasing the tombstone holder from the fixture housing, removing the existing tombstone, engaging in the tombstone holder a new tombstone for use with the new lamp type and securing the tombstone holder to the fixture housing. 
       FIG. 22  is a flow chart illustrating a preferred embodiment of the method of using a light fixture extension as practiced by the present invention. The method of using a light fixture extension as practiced by the present invention for placement into an aperture in a ceiling, wall or box where the aperture is defined by a perimeter comprising the steps of removing a trim member from the fixture, disengaging the fixture from the install apparatus via a latch mechanism between the fixture and the install apparatus, removing the existing hardware, replacing the hardware onto the fixture extensions, attaching the fixture to the fixture extensions to the correct corresponding positions, adding an end plate extension to the end plates, replacing the fixture for engagement into the install apparatus via a latch mechanism between the fixture and the install apparatus, and replacing the trim member and locking into position. 
       FIG. 23  is a flow chart illustrating a preferred embodiment of the method of using an install apparatus extension as practiced by the present invention. The method of using an install apparatus extension as practiced by the present invention for placement into an aperture in a ceiling, wall or box where the aperture is defined by a perimeter comprises the steps of removing the fixture from the install apparatus, removing the install apparatus from the opening and attaching extensions to the install apparatus, replacing the install apparatus into the ceiling or wall cavity, and replacing the fixture and engaging into the install apparatus via a latch mechanism between the fixture and the install apparatus. 
       FIG. 24  is a flow chart illustrating a preferred embodiment of the method of adapting a light fixture as practiced by the present invention for casting indirect light. The method of adapting a light fixture as practiced by the present invention for casting indirect light comprising the steps of, removing the trim member, removing the lamps, lowering the fixture from the install apparatus, removing the electronics, adding the new electronics, rotating the fixture back into the install apparatus, securing the fixture into the install apparatus, installing the indirect reflective shield, adding the lamps, attaching the indirect apparatus to trim member, attaching the trim member to the fixture, and rotating the trim member into the fixture and securing it in place. 
       FIGS. 25A ,  25 B,  25 C,  25 D are perspective views of a preferred embodiment of an indirect lighting trim  500  for use with the light fixture apparatus  100  of the present invention.  FIGS. 25A ,  25 B,  25 C,  25 D illustrate the indirect lighting trim  500  for converting the light fixture apparatus  100  of the present invention into an indirect lighting fixture. The tombstone holder extension  516 A is inserted into the desired lamp length slot  232 B,  232 BB [see  FIG. 4 ] allowing the lamps  12  to be positioned to the desired heights within the fixture/troffer  200  [see  FIG. 1 ]. The lamp holders  205  are inserted into the tombstone holder extension  516 A before the tombstone holder extension cover  516  is attached. The indirect lighting trim  500  is placed onto the Shadow Box™ trim  300  and secured into place with a clip device  352 . The indirect reflective shield  580  is inserted into the fixture/troffer  200  and secured into place before closing the Shadow Box™ trim  300  with the indirect lighting trim  500  attached. 
       FIG. 26  is a perspective view of a preferred embodiment of a ballast rail  2200  of the present invention. The ballast rail  2200  comprises a planar portion  2202 , an offset portion  2204 , a lip portion  2206  and a beveled portion  2208 . The planar portion  2202  has one or more ballast adjustment slots  2234 A,  2234 B for removeably securing a ballast to the ballast rail  2200 . The offset portion  2204  provides that there is minimal engagement with respect to the planar portion  2202  of the ballast rail  2200  and the housing or base  202  as illustrated in  FIG. 4 . 
       FIG. 27  is an end view of the preferred embodiment of the ballast rail  2200  of the present invention as illustrated in  FIG. 26 . The ballast rail  2200  has a planar portion  2202 , an offset portion  2204  and a lip portion  2206  and a beveled portion  2208 . 
       FIG. 28  is a longitudinal view of the preferred embodiment of the ballast rail  2200  of the present invention as illustrated in  FIG. 26 . 
       FIG. 29  is a plan view of the preferred embodiment of the ballast rail  2200  of the present invention as illustrated in  FIG. 26  engaged with a collet. The ballast rail  2200  comprises a planar portion  2202 , an offset portion  2204 , a lip portion  2206  and a beveled portion  2208 . The planar portion  2202  has one or more ballast adjustment slots  2234 A,  2234 B for removeably securing a ballast to the ballast rail  2200 . Also, a collet  2240  secures the ballast rail  2200  to the housing. The configurations illustrated in  FIGS. 26 ,  27 ,  28 ,  29 ,  30  provide special and enhanced heat sink effects for the ballasts attached to the ballast rail  2200 . 
       FIG. 30  is a plan view of the preferred embodiment of the collet  2240  of the present invention as illustrated in  FIG. 29 . The collet  2240  comprises a planar member  2242 , a lip portion  2246 , a beveled portion  2248  and one or more apertures  2249 . 
       FIG. 31  is a perspective view of a preferred embodiment of a latch bar  3100  of the present invention. The latch bar  3100  comprises a longitudinal member  3102 , a latch  3104 , an aperture  3106  and an angled portion  3108 . 
       FIG. 31A  is a longitudinal view of the preferred embodiment of the latch bar  3100  of the present invention as illustrated in  FIG. 31 . The latch bar  3100  is illustrated with the angled portion  3108 . 
       FIG. 31B  is a detail view of the preferred embodiment of the angled portion  3108  of the latch bar  3100  of the present invention as illustrated in  FIG. 31A . 
       FIG. 31C  is a longitudinal, break-away view of the preferred embodiment of the latch bar  3100  of the present invention as illustrated in  FIG. 31 . The latch bar  3100  is illustrated with the longitudinal member  3102 , the latch  3104 , the aperture  3106  and the angled portion  3108 . 
       FIG. 31D  is a detail view of the preferred embodiment of the latch of the latch bar  3100  of the present invention as illustrated in  FIG. 31A . The latch bar  3100  is illustrated with the longitudinal member  3102 , the latch  3104 , the aperture  3106  and the angled portion  3108 . 
       FIG. 32A  is a perspective view of the preferred embodiment of the lens receiver guide  3200  of the present invention. The lens receiver guide  3200  comprises a first member  3202 , a second member  3204 , where the first member  3202  and the second member  3204  are separated by an angle  3203 . The angle  3203  coincides with the angle at the corners of the lens cover, which in the present embodiment is 90 degrees. The first member  3202  and the second member  3204  have corresponding apertures  3211 ,  3111 A,  3112 ,  3112 A,  3113 ,  3113 A. Each aperture  3211 ,  3111 A,  3112 ,  3112 A,  3113 ,  3113 A has a protrusion  3220  therein. The protrusion  3220  is for removeably securing a lens clip  3300  (see  FIG. 33 ) therein. 
       FIG. 32B  is an elevation view of the preferred embodiment of the lens receiver guide  3200  of the present invention as illustrated in  FIG. 32A . The lens receiver guide  3200  has a first member  3202  with three apertures  3211 ,  3112 ,  3113 . The number of apertures  3211 ,  3112 ,  3113  is determined by the number of thicknesses of lens that will be accommodated by the lens receiver guide  3200 . In the embodiment illustrated, the three apertures  3211 ,  3112 ,  3113  correspond to lens with thicknesses of the three gaps, G 11 , G 12  and G 13 . 
       FIG. 32C  is a plan view of the preferred embodiment of the lens receiver guide  3200  of the present invention as illustrated in  FIG. 32A . 
       FIG. 33A  is a perspective view of a preferred embodiment of the lens clip  3300  of the present invention. The lens clip  3300  comprises a base member  3302 , a side member  3304 , an angled member  3306 , an engagement member  3308  and an pressing member  3310 . The side member  3304  can be any shape, e.g., round or square. The angled member  3306  has an aperture  3312  therein. The aperture  3312  in the angled member  3306  of the lens clip  3300  is for receiving the protrusion  3220  in the aperture  3211  when the lens clip  3300  is engaged in the aperture  3211  of the lens receiver guide  3200 . The lens clip  3300  is inserted for securing the lens and removed for changing the lens. 
       FIG. 33B  is an elevation view of the preferred embodiment of the lens clip of the present invention as illustrated in  FIG. 33A . 
     Additional advantages and modification will readily occur to those skilled in the art. The invention in its broader aspects is therefore not limited to the specific details, representative apparatus, and the illustrative examples shown and described herein. Accordingly, the departures may be made from the details without departing from the spirit or scope of the disclosed general inventive concept.

Technology Classification (CPC): 5