Abstract:
The invention discloses a safety mechanical system by which emergency oxygen is delivered to motor vehicle occupants during an accidental water submersion of the vehicle. The system utilizes an oxygen filled tank located in the trunk, or another concealed area. The tank is connected to a manifold system with an automatic valve. The valve is activated and opened when a series of sensors detects that the vehicle is partially or fully submerged. Upon such detection, the valve is opened and oxygen is delivered through the manifold, then to a series of flexible tubes to a set of drop down masks that automatically deploy from an overhead console in the vehicle&#39;s headliner. The drop down assembly is of an adequate length of coiled hose similar to that found on a commercial airliner for oxygen use during sudden decompression. With such an installed system, vehicle occupants are provided with a mask and oxygen until they can be rescued or escape on their own.

Description:
RELATED APPLICATIONS 
     The present invention was first described in and claims the benefit of U.S. Provisional Application No. 61/128,410, filed May 22, 2008, the entire disclosures of which are incorporated herein by reference. 
    
    
     FIELD OF THE INVENTION 
     The present invention relates generally to supplemental oxygen delivery systems and, more particularly, to a supplemental oxygen delivery system that is installed into a motor vehicle and provides oxygen in emergency situations. 
     BACKGROUND OF THE INVENTION 
     Various types of emergency breathing apparatuses are used in emergency situations. Typically these breathing apparatuses are used in modern mass transit systems, emergency vehicles, and by emergency first responders and are intended to protect a user from harmful airborne particles or supplement a lack of breathable oxygen. Some examples are U.S. Pat. Nos. 6,279,571, issued in the name of Meckes, which describes an emergency breathing apparatus comprising a hood that is worn by a user in an environment where there is a fire or other contamination and 5,809,999, issued in the name of Lang, which describes a method and apparatus for supplying breathable gas in emergency oxygen systems, especially in an aircraft. Various other attempts to provide breathable oxygen for emergency uses include: U.S. Pat. No. 4,428,372, issued in the name of Beysel et al., which describes a process and apparatus for providing breathing gas; 4,508,700, issued in the name of Hoshiko, which describes a method of generating oxygen for emergency use; and 6,701,923, issued in the name of Cazenave et al., which describes a process and installation for the distribution of air enriched in oxygen to passengers of an aircraft. These attempts however have certain disadvantages, including the chance of combustion due to the use of enriched oxygen and the complexity of installation and utilization which often restricts the versatility of the solution to use with pressurized environments and other more common emergency situations are not addressed. 
     All too often we hear or read about a motor vehicle that travels off of a roadway and ends up submerged in a lake, stream, pond, or the like. Most times, such accidents occur from general confusion, poor visibility, unknown surroundings and the like. As such, most drivers are awake, not injured, and in control of an operational vehicle when all of a sudden they find themselves in rapidly rising water. However, doors may become stuck, windows may become non-operational and people die quickly even if a rescue team is immediately dispatched due to the simple matter of the vehicle occupants drowning. A few minutes of air make all the difference for a rescue team or even the vehicle occupants themselves who may now have time to get a door open or a window broken out. While various vehicle air purification and recirculation systems exist, they do not address use in emergency situations. U.S. Pat. No. 6,712,886, issued in the name of Kim, describes an air purification device for an automobile with oxygen-supplying function which air is collected, purified, and enriched with oxygen before being resupplied to the vehicle. 
     While these devices fulfill their respective, particular objectives, each of these references suffers from one (1) or more of the aforementioned disadvantages. Accordingly, a need exists for a means by which occupants of a submerged vehicle can be provided with a source of oxygen during an accidental submersion to allow for rescue. The development of the present invention substantially departs from the conventional solutions and in doing so fulfills this need. 
     SUMMARY OF THE INVENTION 
     In view of the foregoing references, the inventor recognized the aforementioned inherent problems and observed that there is a need for a means to simply and effectively provide occupants of a submerged vehicle an automatic source of oxygen during an accidental submersion which will increase survivability and assist in rescue and thus, the object of the present invention is to solve the aforementioned disadvantages. 
     To achieve the above objectives, it is an object of the present invention to provide a self-contained breathing system for motor vehicles that provides a means for supplying a source of oxygen or similar gaseous mixture to a user during an accidental submersion of a motor vehicle, thereby enabling the survivability and rescue of occupants trapped inside. 
     Another object of the self-contained breathing system for motor vehicles is to provide a system comprising a plurality of breathing masks, a plurality of coiled flexible tubing, a manifold, a plurality of solenoid valves, a central channel enclosure, an electromagnet release mechanism, a control switch, and other electrical and mechanical components. 
     Yet still another object of the self-contained breathing system for motor vehicles is to provide a system that provides a supply of gaseous mixture to vehicle occupants whom possess respiratory conditions that require the utilization of oxygen to breath. 
     Yet still another object of the self-contained breathing system for motor vehicles is to provide a system that would be provided as standard or optional equipment on new motor vehicles or as an aftermarket kit for addition to an existing motor vehicle. 
     Yet still another object of the self-contained breathing system for motor vehicles is to provide a method of utilizing the device which provides an increased level of safety for motor vehicle occupants in the event of the typically tragic accidental submersion. Such a method may further include the steps of: providing and installing a central channel enclosure at a desired location within the motor vehicle; providing and routing tubing throughout the motor vehicle; providing and connecting a plurality of breathing masks to the tubing; providing and charging a tank with the gaseous mixture; providing and connecting a ball valve and a gate valve to the tank respectively; closing the ball valve and opening the gate valve; fastening the tank to a desired location in the motor vehicle; providing and coupling a manifold to the tank; providing and connecting a plurality of valves to the manifold; connecting the tubing to the valves; providing and toggling a control switch to a desired operable position; and when the motor vehicle is submerged, automatically releasing the breathing masks and the tubing. 
     Further objects and advantages of the self-contained breathing system for motor vehicles will become apparent from a consideration of the drawings and ensuing description. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
       The advantages and features of the present invention will become better understood with reference to the following more detailed description and claims taken in conjunction with the accompanying drawings, in which like elements are identified with like symbols, and in which: 
         FIG. 1  is an environmental view of the self-contained breathing system for motor vehicles  10  depicting an installed state on a motor vehicle  15 , according to the preferred embodiment of the present invention; 
         FIG. 2  is an environmental view of the central channel enclosure  55  depicting a deployed state, according to the preferred embodiment of the present invention; 
         FIG. 3  is a sectional view of a central channel enclosure  55  as seen along a line I-I, as seen in  FIG. 1 , according to the preferred embodiment of the present invention; 
         FIG. 4  is a front view of the central channel enclosure  55  depicting a deployed state, according to the preferred embodiment of the present invention; 
         FIG. 5  is a mechanical riser diagram depicting the mechanical components of the self-contained breathing system for motor vehicles  10 , according to the preferred embodiment of the present invention; 
         FIG. 6  is an electrical block diagram disclosing the major electrical components as used with the self-contained breathing system for motor vehicles  10 , according to the preferred embodiment of the present invention; 
         FIG. 7  is a front view of a tank  41 , according to the preferred embodiment of the present invention; and, 
         FIG. 8  is bottom view of the tank  41 , according to the preferred embodiment of the present invention. 
     
    
    
     DESCRIPTIVE KEY 
     
         
         
           
               10  self-contained breathing system for motor vehicles 
               15  motor vehicle 
               20  breathing mask 
               21  aperture 
               22  gaseous mixture 
               25  coiled flexible tubing 
               30  roof 
               35  manifold 
               39  ball valve 
               40  solenoid valves 
               41  tank 
               42  gate valve 
               43  Schrader valve 
               44  regulator 
               45  gauge 
               46  bracket 
               47  bracket fastener 
               48  gas canister 
               49  T-fitting 
               55  central channel enclosure 
               56  enclosure fastener 
               60  spring-loaded doors 
               62  magnet 
               65  electromagnet release mechanism 
               70  hinges 
               75  control switch 
               76  electrical wiring 
               95  battery 
               100  pressure switch 
               105  moisture detection switch 
               110  relay coil 
               115  relay contacts 
               120  occupant 
           
         
       
    
     DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT 
     The best mode for carrying out the invention is presented in terms of its preferred embodiment, herein depicted within  FIGS. 1 through 8 . However, the invention is not limited to the described embodiment and a person skilled in the art will appreciate that many other embodiments of the invention are possible without deviating from the basic concept of the invention, and that any such work around will also fall under scope of this invention. It is envisioned that other styles and configurations of the present invention can be easily incorporated into the teachings of the present invention, and only one particular configuration shall be shown and described for purposes of clarity and disclosure and not by way of limitation of scope. 
     The terms “a” and “an” herein do not denote a limitation of quantity, but rather denote the presence of at least one of the referenced items. 
     The present invention describes a self-contained breathing system for motor vehicles (herein described as the “system”)  10 , which provides a means for supplying a source of oxygen or another similar gaseous mixture  22  during an accidental submersion of a motor vehicle  15 , thereby allowing for the rescue of occupants  120  trapped therein. Said system  10  comprises a plurality of breathing masks  20 , a plurality of coiled flexible tubing  25 , a manifold  35 , a plurality of solenoid valves  40 , a central channel enclosure  55 , an electromagnet release mechanism  65 , a control switch  75 , and other electrical and mechanical components. Said system  10  also may be provided to supply the gaseous mixture  22  to occupants  120  whom possess respiratory conditions which require the utilization of oxygen to breath. The system  10  would be provided as standard or optional equipment on new motor vehicles  15  or provided as an aftermarket kit for an addition to existing motor vehicles  15 . 
     Referring now to  FIG. 1 , an environmental view of the system  10  depicting an installed state on a motor vehicle  15 , according to the preferred embodiment of the present invention, is disclosed. A plurality of breathing masks  20 , are provided for each seating positions in the motor vehicle  15 , one (1) per seating position. As such, a typical vehicle  15  would be equipped with two (2) to eight (8), depending on vehicle  15  size. A larger number of breathing masks  20  such as for vans and busses could also be provided. The breathing masks  20  are supported from coiled flexible tubing  25  which is in turn supported from a roof  30  of the motor vehicle  15 . Further disclosure of the supporting means and associated components will be described in greater detail herein below. Each section of coiled flexible tubing  25  terminates in a manifold  35  via an individual solenoid valve  40 . 
     The manifold  35  and the solenoid valves  40  are mechanically interconnected to a tank  41  via coiled flexible tubing  25  and a ball valve  30 . The manifold  35 , solenoid valves  40 , and tank  41  would be located in an accessible, but hidden location on the motor vehicle  15 .  FIG. 1  depicts said location as the trunk of the motor vehicle  15 , but other locations can also be considered, and as such, should not be interpreted as a limiting factor of the present invention. As will be seen herein below, the breathing mask  20  along with the coiled flexible tubing  25  will drop into a usable condition as governed by an automatic mechanism should the motor vehicle  15  become submerged, or via a manual release as controlled by occupants  120  therein the motor vehicle  15 . In such a manner, the system  10  can provide the gaseous mixture  22  in the case of accidental submersions. 
     The manifold  35  is a conventional device utilized to direct the gaseous mixture  22  through an inlet thereto a plurality of outlets. Each outlet is connected to a plurality of conventional solenoid valves  40  which are further connected to the coiled flexible tubing  25  and the inlet is connected to the tank  41  each use common tubing connectors. Said solenoid valve  40  is an electromechanical valve which is controlled with an electrical current; therefore, said solenoid valve  40  is interconnected to the battery  95  therewith conventional electrical wiring  76 . 
     The coiled flexible tubing  25  is a conventional hollow plastic or rubber hose specifically utilized to carry air from the solenoid valves  40  to the breathing masks  20 . Said coiled flexible tubing  25  is preferably ribbed or corrugated, thereby enabling said tubing  25  to bend while preventing twisting and cutting off flow of the gaseous mixture  22 . Said coiled flexible tubing  22  would be routed discretely on an internal surface of the exterior vehicle  15  body panels as required by the make and model of said motor vehicle  15 . A distal end portion of each tube  25  is connected to a breathing mask  20 . Should egress outside of the vehicle  15  be obtained, the length of the coiled flexible tubing  25  in its uncoiled length is viewed as approximately fifty (50) feet to allow the occupants  120  to swim away from the motor vehicle  15  while still being afforded the use of the gaseous mixture  22 . 
     Each breathing mask  20  provides an occupant  120  with a means to transfer the breathable gaseous mixture  22  to their lungs via the mouth portion of the occupant  120 . Said breathing masks  20  are preferably fabricated from a material such as, but not limited to: rubber, plastic, or the like (also see  FIG. 4 ). 
     The tank  41  would be filled with a conventional breathable gaseous mixture  22  such as air, oxygen, or an air/oxygen mixture (also see  FIGS. 7 and 8 ). Said tank  41  is similar to cylinders utilized for diving, scuba diving, or like which store and transport a breathable gaseous mixture  22 . The capacity of the tank  41  provides an approximate usage time of twenty (20) minutes for all occupants  120 . This time restraint is viewed as adequate for rescue by emergency personnel, and/or gives time for the occupants  120  to escape on their own through the motor vehicles  15  doors, windows, trunk, rear hatch or the like. 
     Referring now to  FIGS. 2 through 4 , various views of the central channel enclosure  55 , according to the preferred embodiment of the present invention, are disclosed.  FIG. 2  depicts an environmental view of the central channel enclosure  55  depicting a deployed state,  FIG. 3  depicts, a sectional view of the central channel enclosure  55  as seen along a line I-I therein  FIG. 1 , and  FIG. 4  depicts a front view of the central channel enclosure  55 . These figures more clearly depict the view of the underside of the roof  30  as seen by the occupants  120 . The components of the system  10  would be housed in a rectangular central channel enclosure  55  that would run on the underside of the roof  30  in an overhead console configuration, similar to the mask dispensing system as found on commercial airlines that is automatically deployed as a result of airplane cabin de-pressurization. Said central channel enclosure  55  is preferably fastened to the interior roof portion  30  therewith an appropriate amount of enclosure fasteners  56 . Said enclosure. fasteners  56  are conventional screws, nuts and bolts, or the like. 
     The system  10  comprises a pair of spring-loaded doors  60  thereon each central channel enclosure  55 . Each spring-loaded door  60  is fabricated from a ferrous metal material, thereby securing to a common magnet  62 . Said magnet  62  is located on a lower portion of the central channel enclosure  55  intermediately positioned between each door  60 . Each spring-loaded door  60  automatically opens via an electromagnet release mechanism  65 . 
     The electromagnet release mechanism  65  is interconnected to the magnet  62  and a control switch  75  (discussed in further detail herein below) therewith electrical wiring  76 , thereby allowing for communication of the position of the control switch  75  to the electromagnet release mechanism  65  to deploy the spring-loaded doors  60 . When the control switch  75  is positioned to an “ON” position current is directed to the electromagnet release mechanism  65  to demagnetize the magnet  62  and open the spring-loaded doors  60 . When the control switch  75  is positioned to the “AUTO” the electromagnet release mechanism  65  is controlled via a moisture detection switch  105  (not shown) location near the tank  41 . Said moisture detection switch  105  senses that the vehicle  15  has been submerged in water and sends a signal to the electromagnet release mechanism  65  to demagnetize the magnet  62  and open the spring-loaded doors  60 . The spring-loaded doors  60  are supported by an appropriate amount of conventional hinges  70 , as shown, located thereon the outer edge of each spring-loaded doors  60 . When opened, the individual breathing masks  20  will release downwardly via gravity and be ready for use. 
     Also located on a surface of the central channel enclosure  55  is a control switch  75 . Said control switch  75  is preferably a digit-operated multi-position switch, yet other switching means may be incorporated without limiting the functions of the system  10 . In its normal position, it would be left in the “AUTO” position where the deployment of the breathing mask  20  is controlled by an array of independent sensors as will be described in greater detail herein below. In the “OFF” position, the system  10  will be disabled and will not deploy in that seating position under any situation. Such a setting would be desired for maintenance work, long term storage, use with infant seats and the like. In the “ON” position, the breathing mask  20  will be deployed immediately. Such a position would be used should the use of the gaseous mixture  22  be needed immediately for a medical situation. The use of an individual control switch  75  for each seating position allows for individual control, rather than one (1) switch that would release all of the breathing masks  20  and waste the gaseous mixture  22  when only one (1) would be needed for the purported example of a medical emergency. The central channel enclosure  55  would be specifically designed for each type and style of motor vehicle such that it would match and fit with the profile of the roof  30 . 
     The breathing mask  20  is similar to conventional scuba diving mouthpieces. Said breathing mask  20  is inserted into an occupants  120  mouth and secured by said occupant  120  biting downwardly thereon, thereby allowing the breathable gaseous mixture  22  to be directed thereinto the occupants  120  lungs. The coiled flexible tubing  25  is connected to an end portion of the breathing masks  20  preferably via an interference fitting means, yet other fitting means may be provided without limiting the functions of the system  10 . Said connection enables the breathable gaseous mixture  22  to be directed through an aperture  21  in the breathing mask  20  and outwardly for utilization by an occupant  120 . 
     Referring now to  FIG. 5 , a mechanical riser diagram depicting the mechanical components of the system  10 , according to the preferred embodiment of the present invention, is disclosed. The tank  41  is fitted with a conventional T-fitting  49  located thereon a distal upper portion, thereby enabling connection to the manifold  35  via conventional valves. A gate valve  42  provides a secondary valve means preferably of the manual variety. A main pressure gauge  45  is provided local to the motor vehicle  15  so as to allow the determination of the fill status of the tank  41 . Said main pressure gauge is also connected to a conventional regulator  44 . Should the tank  41  require refilling, a separate Schrader valve  43  provides a fill port means which allows refilling from multiple sources, such as from a compressor, central tank, or the like. A conventional ball valve  29  provides a manual output shutoff valve which is mechanically interconnected to the manifold  35  where pressure and flow can be equalized between the various coiled flexible tubing  25  and breathing mask  20 . The physical connection between the manifold  35  and the coiled flexible tubing  25  is controlled by the solenoid valves  40 . The solenoid valves  40  are electrically operated by the application of 12 VDC from the electrical distribution system of the motor, vehicle  15 . Thus, the only electrical component as involved in the mechanical system of the system  10  is the solenoid valves  40  and as such, provides for the maximum reliability. 
     Referring now to  FIG. 6 , an electrical block diagram depicting the electrical components as used with the system  10 , according to the preferred embodiment of the present invention, is disclosed. Power for the system  10  is derived from a battery  95  as provided via the motor vehicle  15 . Power is then routed from the battery  95  to a pressure switch  100  and the moisture detection switch  105  wired in a parallel configuration. The pressure switch  100  will sense internal pressure of the passenger compartment of the motor vehicle  15  and switch to a closed state in the event of increased ambient pressure due to submersion of the motor vehicle  15  under water. The moisture detection switch  105  will function in the same manner but will close upon the detection of water. The parallel configuration allows either the pressure switch  100  or the moisture detection switch  105  to close the circuit, thus providing redundancy and increased protection. The electric current then flows from the pressure switch  100  and/or the relay contacts  115  to a relay coil  110 . The pressure switch  100  is provided with a series of multiple relay contacts  115  which correspond to the number of seating positions in the motor vehicle  15 . The relay contacts  115  are located in the “AUTO” wiring position of the control switch  75  for each seating position. Thus, should the control switch  75  be in the “AUTO” position, and the relay contacts  115  be closed, electrical power will flow to both the solenoid valves  40  and the electromagnet release mechanism  65 . In such a manner, the spring-loaded doors  60  (as shown in  FIGS. 2 through 4 ) will open, and the breathing mask  20  along with the coiled flexible tubing  25  (as shown in  FIGS. 1 and 2 ) will descend downwardly and be pressurized for use by the solenoid valves  40 . 
     As such, it can be easily seen that all breathing mask  20  will be released as long as all control switch  75  are placed in the “AUTO” position. Should just one (1) of the breathing mask  20  be required for a medical reason, the corresponding control switch  75  will be placed in the “ON” position thus bypassing the relay contacts  115  and allowing for immediate use of only the one (1) desired breathing mask  20  and coiled flexible tubing  25 . 
     Referring now to  FIG. 7 , a front view of the tank  41  and  FIG. 8  a bottom view of the tank  41 , according to the preferred embodiment, are disclosed. The system  10  comprises a conventional cylindrical tank  41 , thereby providing a means to house and transport the breathable gaseous mixture  22 . Said tank  41  is secured therein the vehicle  15  therewith a pair of conventional actuating brackets  46 , thereby restraining the tank  41  from damage as a result of rough travel. One (1) bracket  46  is positioned thereon an upper portion of the tank  41  and another bracket  46  is positioned thereon a lower portion of the tank  41 . Each bracket  46  is fabricated from a metal material and secured to the vehicle via conventional fasteners  47  such as, but not limited to: screws, nuts and bolts, or the like. Each bracket  46  is secured with a pair of fasteners  47 , one (1) at each end portion. 
     An upper portion of the tank  41  is fitted with a conventional t-fitting  49 , thereby further providing a connection means to the gate valve  42 , the Schrader valve  43 , and the regulator  44 . As mentioned above the gate valve  42  provides a manual secondary valve to assure against long-term leakage. Said gate valve  42  is connected to the T-fitting via a threading means and is further connected to a conventional Schrader valve  43  via threading means. Said Schrader valve  43  provides a means to refill the tank  41  similar to tires thereon motor vehicles  15  or bicycles. The T-fitting  49  is also connected to a conventional piston-type or diaphragm-type regulator  44  which is further connected to a conventional air pressure gauge  45 . The regulator  44  enables the gaseous mixture  22  to expel from the tank  41  in a controlled manner and the gauge  45  monitors the pressure of the gaseous mixture  22  contained within the tank  41 . Connected to an end portion of the regulator  44  is a conventional ball valve  39  which provides a shut-off means to the gaseous mixture  22 . Said ball valve  39  is utilized for maintenance purposes thereto cease the supply of the gaseous mixture  22  from beyond said ball valve  39 . 
     It is envisioned that other styles and configurations of the present invention can be easily incorporated into the teachings of the present invention, and only one (1) particular configuration shall be shown and described for purposes of clarity and disclosure and not by way of limitation of scope. 
     The preferred embodiment of the present invention can be utilized by the common user in a simple and effortless manner with little or no training. After initial purchase or acquisition of the system  10 , it would be installed as indicated in  FIGS. 1 through 8 . 
     The method of installing and utilizing the system  10  may be achieved by performing the following steps: acquiring the system  10 ; installing the central channel enclosure  55  at a desired location; routing the coiled flexible tubing  25  throughout the vehicle  15 ; connecting the breathing masks  20  to the tubing  25 ; charging the tank  41  with a breathable gaseous mixture  22 , thereby closing the ball valve  39 , opening the gate valve  42  and refilling the tank  41  through the Schrader valve  43  or replacing with a pre-filled and/or pressurized unit; fastening the tank  41  to a desired location in the vehicle  15  therewith a pair of brackets  46  and fasteners  47 ; connecting the solenoid valves  40  to the manifold  35 , if not previously installed; connecting the tank  41  to the manifold  35 ; connecting the coiled flexible tubing  25  to the solenoid valves  40 ; ensuring that the ball valve  39  is in an open state; switching the control switch  75  for each seating position to the appropriate position; and, utilizing the system  10  as necessary. 
     Utilization of the system  10  occurs in two different situations corresponding to the two different settings of the respective control switch  75 . The first situation would occur when the control switch  75  is in the “AUTO” position and the system  10  may be achieved by performing the following steps: activating the system  10  would occur when the motor vehicle  15  falls into or is being driven into a body of water and becoming submerged; allowing the pressure switch  100  and/or the moisture detection switch  105  will activate and close, thus energizing the relay coil  110  and closing the relay contacts  115 ; allowing the electromagnet release mechanism  65  to release the spring-loaded doors  60  and allow the breathing mask  20  and coiled flexible tubing  25  to be released via gravity; allowing the relay contacts  115  to energize and open the respective solenoid valves  40  thus allowing pressurized air/oxygen to flow to the breathing mask  20 ; placing and securing the breathing mask  20  to the occupants  120  face; waiting for rescue or continuing to escape; and, being alive due to the system  10 . 
     The second situation would occur when the control switch  75  would be placed in the “ON” position and the system  10  may be achieved by performing the following steps: releasing the breathing mask  20  as well as subsequent air/oxygen flow would follow the same methodology as described above; breathing-in the air/oxygen through the breathing mask  20 ; switching the control switch  75  to either the “OFF” or “AUTO” position when the need for an air/oxygen mixture no longer exists; stowing the breathing mask  20  and coiled flexible tubing  25  within the central channel enclosure  55 ; utilizing when necessary; and, recharging or replacing the tank  41  to ensure that a complete operating cycle is available should it be needed at a later date. 
     The foregoing descriptions of specific embodiments of the present invention have been presented for purposes of illustration and description. They are not intended to be exhaustive or to limit the invention and method of use to the precise forms disclosed. Obviously many modifications and variations are possible in light of the above teaching. The embodiment was chosen and described in order to best explain the principles of the invention and its practical application, and to thereby enable others skilled in the art to best utilize the invention and various embodiments with various modifications as are suited to the particular use contemplated. It is understood that various omissions or substitutions of equivalents are contemplated as circumstance may suggest or render expedient, but is intended to cover the application or implementation without departing from the spirit or scope of the claims of the present invention.