Abstract:
A screw mount placement device uses a gear assembly mounted in a housing to allow an item to be hung levelly and further allow the item to be hung in a desired position relative to at least one other already mounted object.

Description:
CROSS REFERENCE TO RELATED APPLICATIONS 
     This application is a continuation in part of, and claims the benefit of priority, to U.S. Provisional Patent Application Ser. No. 61/330,521, filed May 3, 2010, filed by the same inventive entity. This application is also a continuation in part of, and claims the benefit of priority, to U.S. patent application Ser. No. 13/068,078, filed May 2, 2011, filed by the same inventive entity. Both of these applications are incorporated herein by reference. 
    
    
     This invention relates to a device for the proper mounting, hanging or leveling of shelves, pictures, and other items and more particularly to a mounting, hanging or leveling device where the item must be positioned in a level manner either for appearances or functionality and aesthetics, especially in reference to an item to be hung or mounted on a wall. 
     BACKGROUND OF THE INVENTION 
     Typically, it is a difficult task for an individual to position a picture, shelf, or other hanging decorator or functional item that requires a level placement by themselves using two mounting holes. Holding the item (such as a picture or shelf) or a traditional level; marking the spots to place the desired wall mounting fasteners, and then actually mounting the picture in a desired level position, can waste time and be a painstaking task. 
     Furthermore, the individual is many times forced to make several attempts to get the desired hanging object at the proper level or height or to achieve the correct spacing of the mounting apertures. In their efforts to do so, they often mark the walls with a marking device, using a trial and error method, thus creating another job to touch up with paint. 
     In addition to the above, it is often difficult to gain proper visual perspective in hanging new art work with in relation to other existing wall mounted pieces. Often people must lean back to get a better perspective and, in doing so, might lose their balance and fall. This can be critical if that person is using a taller ladder. An invention that can avoid that leaning back, also can be used safely on a ladder for hanging artwork or other wall items is a useful invention. 
     It is very desirable for individuals; such as art gallery curators, artists, and even homeowners who work with art, shelves, and mounted wall décor; to have such a device that will aid them in quickly, safely, and efficiently mounting the objects in the desired level manner without the need for several tools such as a tape measure, level, pencil and so forth. 
     SUMMARY OF THE INVENTION 
     Among the many objectives of the present invention is the provision of a screw mount placement device which can quickly create level marks for hanging and positioning wall mounted items that require two or more mounting screws. A further objective of the invention is the provision of a screw mount placement device which can be handled efficiently by an individual scaling a ladder. 
     A still further objective of the present invention is the provision of a screw mount placement device which can align newly mounted items with those already mounted on the wall. 
     Another objective of the present invention is the provision of a screw mount placement device which aids in securing a level position on or against the wall. 
     Yet another objective of the present invention is the provision of a screw mount placement device is the screw placement guides which allows for the accurate placement of screws based on the measurements of the item to be mounted. 
     Another objective to the present invention is the provision of a screw mount placement device which allows the user to calculate how their object is to be mounted. 
     Yet another objective of the present invention is the provision of a screw mount placement device which aids the user in checking the efficiency of proper vertical alignment. 
     Moreover, a further objective of the present invention is the provision of a screw mount placement device which allows the user to readily locate the center between the two mounting apertures. 
     These and other objectives of the invention (which other objectives become clear by consideration of the specification, claims and drawings as a whole) are met by providing a screw mount placement device which uses a gear assembly mounted in a housing to allow an item to be hung levelly and further allow the item to be hung in a desired position relative to at least one other already mounted object. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
         FIG. 1  depicts a front, perspective view for screw mount placement device  100  of this invention. 
         FIG. 2  depicts a front, plan view of screw mount placement device  100  in use. 
         FIG. 3  depicts a perspective view of screw mount placement device  100  showing gear assembly  230 . 
         FIG. 4  depicts gear assembly  230 , isolated from screw mount placement device  100 . 
         FIG. 5  depicts a front, perspective view of screw mount placement device  100  positioning cable  300  and desired slide assembly  222  of screw mount placement device  100 . 
         FIG. 6  depicts a perspective view of slide assembly  112  of screw mount placement device  100  showing cable sling  260  in a down position. 
         FIG. 7  depicts a perspective view of slide assembly  112  of screw mount placement device  100  showing cable sling  260  in an up position. 
     
    
    
     Throughout the figures of the drawings, where the same part appears in more than one figure of the drawings, the same number is applied thereto. 
     DESCRIPTION OF THE PREFERRED EMBODIMENTS 
     Reference will now be made in detail to several embodiments of the invention that are illustrated in accompanying drawings. Whenever possible, the same or similar reference numerals are used in the drawings and the description to refer to the same or like parts or steps. The drawings are in simplified form and are not to precise scale. For purposes of convenience and clarity only, directional terms such as top, bottom, left, right, up, down, over, above, below, beneath, rear, and front, may be used with respect to the drawings. These and similar to directional terms are not to be construed to limit the scope of the invention in any manner. The words attach, connect, couple, and similar terms with their inflectional morphemes do not necessarily denote direct or intermediate connections, but may also include connections through mediate elements or devices. 
     The screw mount placement device of this invention is very suitable for mounting, hanging or leveling a picture or other item on a wall or similar surface. The structure of the screw mount placement device permits accurate placement of whatever hanging item is being used or mounted. To that end, the adjustability of the screw mount placement device offers many great advantages. To that end, the gear assembly is used within the housing for the screw mount placement device in order to provide greater and more efficient adjustability. A centering aperture permits accurate placement of a hanging device, especially when used with the holding assemblies. 
     Now referring to  FIG. 1  and  FIG. 2 , the structure and function of screw mount placement device  100  can be seen. Screw mount placement device  100  is placed next to wall  102 . Housing  106  for screw mount placement device  100  has a screw placement guide  108  in each of left slide  112  and right slide  114 . Also within left slide  112  and right slide  114 , is a screw aperture  110 . Left slide  112  and right slide  114  are slidably mounted in opposite ends or sides of housing  106 . 
     Further, centrally located in housing  106  between left slide  112  and right slide  114 , is placement spacing measure  116 . Adjacent to or close to each end of housing  106  is a level  122 . Each level  122  combines to show when screw mount placement device  100  and housing  106  are positioned properly, to support the hanging of an appropriate item. 
     Adding  FIG. 3  and  FIG. 4  to the consideration, the gear assembly  234  for operating the left slide  112  and the right slide  114  of screw mount placement device  100  can be seen. Gear assembly  234  includes a central circular gear  240 . In contact with central circular gear  240  are top rack gear  242  on top rack  246  and bottom rack gear  244  on bottom rack  248 . Bottom rack gear  244  contacts a bottom portion of central circular gear  240 , while top rack gear  242  contacts the top portion of central circular gear  240 . In other, the teeth of top rack gear  242  and the bottom rack gear  244  mesh with opposing sides of the circular gear  240  at the teeth thereof, thereby permitting the screw mount placement device  100  to operate in combination with its other parts. 
     Bottom rack  248  has left arm  260  at the end of bottom rack gear  244  to form an L-shape therewith. Left arm  260  fits with left sliding holder  136  of the left slide  112 . Top rack  246  has right arm  262  at the end of top rack gear  242  to form an L-shape therewith. Right arm  262  fits with right sliding holder  138  of the right slide  114 . Such structure permits screw mount placement device  100  to be easily adjusted for mounting desired material. 
     Adding  FIG. 5 ,  FIG. 6  and  FIG. 7  to the consideration, use of the screw mount placement device  100  is illustrated. A cable  130  is positioned as desired within base cable holder  132  situated below center aperture  154  of housing  106 . Base cable holder  132  is a U-shaped member adapted to hold cable  130 . Cable  130  extends in two directions in order to contact both left slide  112  and right slide  114 . 
     Left slide  112  includes left sliding holder  136 , while right slide  114  includes left sliding holder  136  both extending into cable sling  266 .  FIG. 6  shows cable sling  266  in downward position  272 , permitting movement of cable  130  as desired. In  FIG. 7 , left slide  112  has left sliding holder  136  raised to upward position  270  with cable sling  266  restricting movement of cable  130  as desired. Right slide  114  also has right sliding holder  138  raised to upward position  270  and extending to cable sling  266 . 
     Also, screw mount placement device  100  has center aperture  116 . Center aperture  116  is always directly in the center of each of the screw placement guides  108 . This allows the item being mounted to be directly centered over a lower hung object or an existing object on the ground. For example, center aperture  116  can be used to levelly center a mirror over a sink or other desired position. 
     This application, taken as a whole with the abstract, specification, claims, and drawings, provides sufficient information for a person having ordinary skill in the art to practice the invention disclosed and claimed herein. Any measures necessary to practice this invention are well within the skill of a person having ordinary skill in this art after that person has made a careful study of this disclosure. 
     Because of this disclosure and solely because of this disclosure, modification of this tool can become clear to a person having ordinary skill in this particular art. Such modifications are clearly covered by this disclosure.