The present invention relates generally to light bulb sockets, and more specifically to a threadless light bulb socket allowing installation and removal of a common threaded light bulb by pushing or pulling the light bulb in or out of the light socket without a need to axially rotate the light bulb or the socket.
Light Bulb Sockets for receiving and powering threaded screw-in light bulbs are known. The purpose and object of a light bulb socket is to secure a light bulb into a light fixture and to conduct electric current through a positive terminal and a ground terminal of the bulb to cause illumination of the bulb.
Over the years, a variety of means and methods have been developed to make it easier to install/remove a threaded light bulb in/from a light socket. Some such means and methods have used a socket formed from a flexible conductive material that flexes to allow a threaded light bulb to slide into or out of the socket with sufficient resistance so the bulb will not fall out of the socket and will still conduct electricity to the bulb.
Although such sockets have made it easier to install and replace a light bulb, these sockets have remained ineffective because they cannot be altered to accommodate various types of light bulbs or light fixtures.
The many different sizes, shapes, and weights of light bulbs cannot be accommodated in known threadless sockets. For example, a large flood lamp in a ceiling light fixture requires more pressure to secure than a standard 60 watt light bulb in a table lamp. Further, when the bulb is inverted, the weight of the light bulb becomes a factor because the pressure supplied by the socket must be sufficient to securely retain the light bulb while concurrently maintaining electrical contact with the positive terminal and of the negative terminal of the bulb Maintaining a sufficient holding force on the light bulb is especially important when the fixture and bulb therein are inverted and suspended above people's heads or anything else that could be damaged if the light bulb were to fall out of socket and/or fixture.
Known threadless sockets are also larger than common light sockets, which makes it impossible for the user to install such known threadless sockets into light fixtures without the need to modify the light fixtures to accommodate a larger socket.
Another problem with known threadless sockets is the inability to change the retaining pressure exerted in a light bulb to positionally maintain the light bulb. As noted previously, known threadless sockets use plural flexible fingers formed of electrically conductive material. As such, to accommodate a different light bulb, or an entirely different weight of light bulb, a different bulb socket is needed. Unfortunately, with hundreds of different sizes, shapes, and weights of light bulbs available and in use, one would need to manufacture a threadless socket for nearly every light bulb size and weight.
My threadless light bulb socket overcomes various of the aforementioned drawbacks by providing a threadless socket that is standard socket size, can securely retain and power a wide variety of bulbs and can be modified to accommodate many different sizes and styles of light bulbs. Insulator housings are also interchangeable to install my threadless sockets in all different types and styles of light fixtures, without the need to modify the fixture.
Some or all of the drawbacks and problems explained above, and other drawbacks and problems, may be helped or solved by my invention shown and described herein. My invention may also be used to address other problems not set out herein or which become apparent at a later time. The future may also bring to light unknown benefits which may be in the future appreciated from the novel invention shown and described herein.
My invention does not reside in any one of the identified features individually, but rather in the synergistic combination of all of its structures, which give rise to the functions necessarily flowing therefrom as hereinafter specified and claimed.
My threadless light socket provides an insulator housing axially carrying a ground socket, defining plural spacedly arranged radial holes carrying thread locks and biasing springs for holding and grounding a light bulb in the socket. An insulation cap secures the ground socket in the insulation housing and carries a positive terminal contact for electrical contact with the light bulb. A socket retainer positionally maintains the socket in a light fixture.
In providing such a threadless light socket assembly:
a principal object to provide a threadless light socket assembly that allows a threaded light bulb to be installed into and removed from the socket, without axially rotating the socket or the light bulb.
a further object to provide such an assembly that allows a light bulb to be removed from the socket by axially pulling the light bulb out of the socket and to be installed into the socket by axially pushing the light bulb into the socket.
a further object to provide such an assembly which can be modified for receiving and retaining standard screw-in light bulbs of various sizes, shapes, weights and types.
a further object to provide such an assembly that can be installed in a variety of light fixtures.
a further object to provide such an assembly that may be used to retro-fit old light fixtures.
a further object to provide such an assembly that may be installed in vertical, horizontal, overhead, and recessed light fixtures.
a further object to provide such an assembly that maintains continuous electrical contact with the light bulb positive terminal and ground terminal.
a further object to provide such an assembly that may be modified to change the amount of force that positionally retains the light bulb in the socket, and the amount of force it takes to install and remove the light bulb.
a further object to provide such an assembly that uses thread locks, applying a radial inward force to a light bulb's threaded base to secure the bulb in the socket and to provide a ground contact.
a further object to provide such an assembly wherein the pressure supplied by the thread locks may be easily changed by changing the biasing springs.
a further object to provide such an assembly wherein the thread lock housings defined in the ground socket are staggered in position so the thread locks engage in the deepest concave position of the bulb base threads.
a further object to provide such an assembly that ensures that the light bulb is held securely and safely in the socket.
a further object to provide such an assembly that has interchangeable insulator housings so the socket can be adapted into different styles and types of light fixtures, including recessed ceiling light fixtures, horizontal fixtures and table and floor lamps.
a further object to provide such an assembly that is adaptable to different applications and/or building codes without the need to manufacture a completely different socket.
a further object to provide such an assembly that complies with federal, state and local electrical and building codes and regulations.
a further object to provide such an assembly having interchangeable components.
a further object to provide such an assembly wherein the ground socket may be manufactured from a variety of conductive materials.
a further object to provide such an assembly that may be disassembled and reassembled with minimal tools and apparatus.
a further object to provide such an assembly that makes it easier to change a light bulb, even in recessed light fixtures in high ceilings.
Other and further objects of my invention will appear from the following specification and accompanying drawings which form a part hereof. In carrying out the objects of my invention it is to be understood that its structures and features and steps are susceptible to change in design and arrangement and order with only one preferred and practical embodiment of the best known mode being illustrated in the accompanying drawings and specified as is required.
Specific forms, configurations, embodiments and/or diagrams relating to and helping to describe preferred versions of my invention are explained and characterized herein, often with reference to the accompanying drawings. The drawings and all features shown therein also serve as part of the disclosure of my invention, whether described in text or merely by graphical disclosure alone. Such drawings are briefly described below.
The readers of this document should understand that the embodiments described herein may rely on terminology used in any section of this document and other terms readily apparent from the drawings and the language common therefore as may be known in a particular art and such as known or indicated and provided by dictionaries. Dictionaries were used in the preparation of this document. Widely known and used in the preparation hereof are Webster's Third New International Dictionary (©1993), The Oxford English Dictionary (Second Edition, ©1989), The New Century Dictionary (©2001-2005) and the American Heritage Dictionary of the English Language (4th Edition ©2000) all of which are hereby incorporated by reference for interpretation of terms used herein and for application and use of words defined in such references to more adequately or aptly describe various features, aspects and concepts shown or otherwise described herein using more appropriate words having meanings applicable to such features, aspects and concepts.
This document is premised upon using one or more terms or features shown in one embodiment that may also apply to or be combined with other embodiments for similar structures, functions, features and aspects of the invention and provides additional embodiments of the invention. Wording used in the claims is also descriptive of the invention and the text of both claims and abstract are incorporated by reference into the description entirely. Terminology used with one, some or all embodiments may be used for describing and defining the technology and exclusive rights associated herewith.
The readers of this document should further understand that the embodiments described herein may rely on terminology and features used in any section or embodiment shown in this document and other terms readily apparent from the drawings and language common or proper therefore.
My threadless light socket assembly 4 generally provides an insulator housing 5, a ground socket 30, an insulator cap 68 and a socket retainer 95 and is designed to work with and install into a variety of lighting fixtures. The insulator housing 5 is formed of a non-conductive material, such as, but not limited to, polycarbonate, Plexiglas®, Lexan®, glass, ceramic, acrylic or plastic. The insulator housing 5 has a top 6 which has a beveled edge 7 around a top opening 11. The beveled edge 7 helps align screw-in light bulbs with the top opening 11. A mounting flange 8 and a mounting surface 9 are also defined on the top 6 to assist in seating and aligning the assembly 4 in a recessed lighting fixture (not shown). Retainer reliefs 10 defined in the mounting surface 9 provide clearance for retainer locks 99 (
Alignment boss 24 aligns the ground socket 30 (and a second embodiment of ground socket 31) with alignment relief 34 defined in the ground socket 30, 31. Alignment of the boss 24 and relief 34 causes spring housings 37 to align with spring seats 18 which responsively aligns biasing springs 56 so a first end of each biasing spring 56 seats against spring seat 18. Opposing end of each biasing spring 18 seats against and applies pressure against thread locks 55.
Ground sockets 30, 31 each carry plural spacedly arranged spring housings 37, each of which defines a medial channel 38 and a thread lock seat 39 at an end portion adjacent inside surface 42. Spring housings 37 are staggered in height relative to the top 6 and bottom 15 so the thread locks 55 align with thread grooves defined in light bulb base 2. Thread locks 55 are carried in the medial channel 38 defined by each thread lock housing 37 and protrude partially through thread lock seats 39 adjacent the inside surface 42 of the ground socket 30,31, so that the thread locks 55 engage in the concave portions of threads of a light bulb base 2. The thread lock seats 39 defined in the inside surface 42 have a radius (not shown) that is slightly smaller than the radius (not shown) of thread lock 55 so that the thread locks 55 cannot pass therethrough. Biasing springs 56 apply inward radial pressure to the thread locks 55 to force the thread locks 55 frictionally against the thread lock seats 39. When a light bulb is pushed into the assembly 4, the biasing springs 56 allow the thread locks 55 to retract into the medial channels 38 defined by spring housings 37 as the threads of a light bulb base 2 slide past the thread locks 55 until the light bulb base 2 is secured within the ground socket 30. The biasing springs 56 bias the thread locks 55 into the deepest portions of the threads on the light bulb base 2 which responsively secure the light bulb and simultaneously maintain electrical contact with the ground sockets 30, 31.
Bottom mounting flange 44 (
The ground socket 30, 31 has an outer circumferential surface 49 and is axially carried within a housing channel 28 defined by the insulator housing 5, 26. In the first embodiment (
Mounting surface 81 of insulator cap 68 seats against the bottom 15 of the insulator housing 5, 26 and outer circumferential surface 12 of the insulator housing 5, 26 aligns with outer circumferential surface 84 of the insulator cap 68, enclosing the ground socket 30, 31 within the insulator housing 5 and forming an aesthetically appealing assembly 4.
Assembly of my threadless light socket assembly 4 begins with the positive terminal contact 59, 65, the insulator cap 68, a fastener 106, and the positive wire lead 110. One takes the insulator cap 68 and installs the positive terminal contact 59, 65 onto the contact mounting surface 74. The positive wire lead 110 is attached to the positive wire mounting location 86 with fastener 106, extending through a known electrical fitting carried by the positive wire lead 110 through the positive conductor mounting hole 75 and into the mounting hole 63 defined in the positive terminal contact 59, 65. The ground socket 30, 31 is then installed onto the ground mounting surface 72 of the insulator cap 68, 69 by attaching the ground wire lead 110 into the ground wire mounting location 86 with a fastener 106 extending through a known electrical fitting on the ground wire lead 110 into the ground socket mounting hole 77 and into the mounting hole 45 defined in the ground socket 30, 31. A fastener 106 is also placed in the fastener seat 87 to extend into and through the mounting hole 77 and into the mounting hole 45 defined in the ground socket 30 or 31. The assembled insulator cap 68 assembly is then installed into the channel 28 of the insulator housing 5. When the assembled ground socket 30, 31 is installed on the insulator cap 68, 69 alignment relief 79 will align with the alignment relief 34 of the ground socket 30, 31. The alignment of the reliefs 34, 79 insures the components fit together correctly.
After aligning the assembled ground socket 30, 31 assembly with the bottom 15 of the insulator housing 5, the ground socket 30, 31 is inserted axially into the channel 28 of the insulation housing 5 only far enough so the spring housings 37 remain outside the insulator housing 5. A thread lock 55 first and then a biasing spring 56 are inserted into the channel 38 of each spring housing 37. After a thread lock 55 and a biasing spring 56 is inserted into each spring housing 37 channel 38 and the biasing springs 56 are compressed flush to outside edge of the spring housing 37, the ground socket 30, 31 is “pushed” the “rest of the way” into the channel 28 defined by the insulator housing 5. Beveled edge 17 helps the biasing springs 56 slide onto the spring seat 18. The top 32 of the ground socket 30, 31 will seat frictionally against the inside seat 22 in the insulator housing 5. Mounting surface 81 of the insulator cap 68 seats frictionally against the bottom 15 of the insulator housing 5.
To fasten the insulator cap 68 to the insulator housing 5, first install the socket retainer 95 with the spring arms 97 and the retainer locks 99 going around the insulator housing 5. The retainer locks 99 align with the retainer reliefs 10. The socket retainer 95 fits into the retainer mounting recess 90 so the bottom 103 seats flush to the bottom 92 of the insulator cap 68. Fasteners 108 extend through the mounting holes 101 in the socket retainer 95 through the insulator cap mounting holes 83 and into the insulator housing 5. The completed assembly 4 may now be installed into a recessed lighting fixture (not shown). The assembly 4 clips into a recessed light fixture (not shown) by compressing the spring arms 97 together radially toward the insulator housing 5 so that the retainer locks 99 snap into the spring retainer reliefs 10, the assembly 4 is installed into a light fixture socket hole (not shown) and the spring arms 97 thereafter flex back outwardly, securing the threadless light socket assembly 4 into the recessed light fixture (not shown).
Other light fixtures (not shown) are designed for light socket assemblies to be mounted in a vertical position. For such fixtures, my second embodiment of the insulator housing 26 is used. My second embodiment 26 has an outside beveled edge 27 to provide an improved aesthetic appearance but all the components of the first and second embodiments 5, 26 respectively are interchangeable.
Other light fixtures (not shown) are designed for the light socket assemblies to be mounted in the horizontal orientation (not shown). For such horizontal mounting light fixtures, my threadless light socket assembly 4 may use the lamp style insulator housing 26 (
My threadless light socket assembly 4 and all its interchangeable components can be adapted for use with various light fixtures in use or on the market today.
The above description of my invention has set out various features, functions, methods and other aspects of the invention. This has been done with regard to the currently preferred embodiments thereof. Time and further development may change the manner in which the various aspects are implemented. Such aspects may further be added to by the language of the claims which are incorporated by reference hereinto as originally filed. The scope of protection accorded the invention, as defined by the claims, is not intended to be necessarily limited to the specific sizes, shapes, features or other aspects of the currently preferred embodiment shown and described. The claimed invention may be implemented or embodied in other forms still being within the concepts shown, described and claimed herein. Also included are equivalents of the invention which can be made without departing from the scope or concepts properly protected hereby.
The foregoing description of my invention is necessarily of a detailed nature so that a specific embodiment of a best mode may be set forth as is required, but it is to be understood that various modifications of details, sizes, and rearrangement, substitution and multiplication of the parts may be resorted to without departing from its spirit, essence or scope.
Having thusly described my invention, what I desire to protect by Utility Letters Patent and
This patent is a continuation of and claims priority to U.S. patent application Ser. No. 13/540,318, which was filed Jul. 2, 2012, which claims priority to U.S. Provisional Patent Application Ser. No. 61/571,765, which was filed Jul. 5, 2011, the disclosures of which are hereby incorporated herein by reference.
Number | Date | Country | |
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61571765 | Jul 2011 | US |
Number | Date | Country | |
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Parent | 13540318 | Jul 2012 | US |
Child | 14203056 | US |