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Class 439/667 - And also having resilient or spring-biased center contact


Subclass of Class 439 - Electrical connectors
Definition: Receptacle further having a second contact centrally located
No. of patents: 27
Last issue date: 06/17/2008


NumberTitleIssue Date
7387544Lamp socket adapter to convert a screw type socket into a slot type socket irreversibly
A lamp socket adapter includes an adapter body, a threaded sleeve, a slot type socket, two locking bars, and two elastic members. Thus, the lamp socket adapter converts a screw type socket into a slot type socket irreversibly. In addition, the arc-shaped guide face ...
06/17/2008
7234973Lighting system having modified light bulb base and luminare socket for preventing the selection of an over wattage light bulb and method of forming same
A lighting system that includes a light bulb having a threaded bulb base and a luminare socket. The bulb (200) includes a two conductor base (201, 205) while the luminare socket (300) utilizes a circular ring (305) with an open aperture (...
06/26/2007
7198505Light socket 3
Improvements to a 3-way light bulb socket are shown. The major improvement is to replace or complement the rigid middle contact element of the socket with an elastic/flexible contact spring. The 3-way light bulb has a solder blob on its middle contact ring, w...
04/03/2007
7178969Mogul lamp holder
A lamp holder is disclosed lamp holder that will accept and make electrical contact with a lamp having a predetermined base and will accept, but not make electrical contact with lamps having other bases. A cavity (or central well) in the base (or floor) of the lamp ...
02/20/2007
7115973Dual-sided semiconductor device with a resistive element that requires little silicon surface area
A dual-sided semiconductor device is formed on a wafer with a resistive element that is formed through the wafer. By forming the resistive element through the wafer, a resistive element, such as a large resistive element, can be formed on the wafer that requires ver...
10/03/2006
6979230Light socket
Improvements to 3-way light bulbs and to their electrical sockets are shown. The major improvement is to replace the rigid middle contact element of the socket by an elastic contact spring. Other improvements are described, which can be applied to the bulbs as well....
12/27/2005
6406333Quick-fit light fixture
A fixture comprised of a base and a tensioning member integrated within the base provides a flexible tensioning force to retain a light bulb within the fixture. The light bulb can be a standard bulb, or a threadless bulb specifically designed for the fixt...
06/18/2002
6396009Lamp receptacle with a multiple-stage power adjusting switch
A lamp receptacle for a screw bulb includes a seat, a multiple-stage power adjusting switch mounted in the seat and having a ratchet wheel and a conductive bridging shroud attached to the ratchet wheel, first and second spring arms selectively in resilien...
05/28/2002
6375513Lampholder
An electric lampholder is provided with a cantilevered center contact. The contact is formed from a spring-like material. The portion of the contact that contacts the lamp eyelet is composed of a material having an electrical resistance less than that of ...
04/23/2002
6322380Safety light socket
A safety light socket including a cylindrical socket defined by an upper end, a lower end, and a cylindrical side wall therebetween. The cylindrical socket includes a cylindrical recess extending downwardly of the upper end thereof. The cylindrical recess...
11/27/2001
6309249Faceplate light socket assembly
A faceplate light socket assembly for a light bank of the type used above vanity cabinets. The faceplate socket maintains a light bulb in substantially horizontal orientation perpendicular to the wall to which the light assembly is mounted. A pre-wired so...
10/30/2001
6227912Structure of lamp socket
A lamp socket includes a plastic socket shell having a big opening and a small opening, a partition board with a center metal spring and a metal socket body connected to the plastic socket shell, a metal block fixedly provided at one side of the plastic s...
05/08/2001
6033248Light bulb socket structure
A new POP-IN BULB for INSERTING AND REMOVING A LIGHT BULB WITHOUT NEED OF TWISTING AND SCREWING. The inventive device includes a cylindrical casing having an open upper end, a closed lower end and a cylindrical side wall therebetween. A pair of vertically...
03/07/2000
5702267Structure of lamp socket
A safety lamp socket in which the center metal contact plate is fastened to a first through hole on the socket body, having a flanged transverse head at one end fastened to a retaining groove inside the first through hole, a pointed upright tip disposed o...
12/30/1997
5670847Socket structure with slidable insulative disk formed in longitudinal grooves for shock hazard protection
A Christmas tree light system including an electrical receptacle connected to power supply, and electrical wire having an electrical plug at one end connected to the electrical receptacle, and a plurality of lamp sockets respectively connected to the elec...
09/23/1997
5595513Bulb socket terminal
A bulb socket terminal to be accommodated in a socket body of a connector bulb socket. The terminal includes a base, an elastic contact portion adapted to contact a filament or an earth of a bulb on one side of the base, and a connecting portion adapted t...
01/21/1997
5573419Safety lampholder for Christmas tree light sets and the like
A safety lampholder has center and side contacts which are concealed and cannot easily be touched by fingers when the lamp screw base is not threaded into the screwthreads. Ring and tip contacts of the lamp screw base are disposed in contact with the cent...
11/12/1996
5385485Copper sleeve for lamp sockets
This invention relates to an improved copper sleeve for lamp sockets and in particular to one including a cylindrical member integrally made of copper, said cylindrical member having a terminal at the lower portion, a slot at the vertical wall, and a hook...
01/31/1995
5380214Push-in light socket adapter
A push-in light socket adapter for use with a conventional household light bulb socket for facilitating a rapid removal and replacement of a light bulb. The adapter includes a threaded socket body which may be engaged to the household light bulb socket in...
01/10/1995
5350322Bulb socket terminal
A bulb socket terminal to be accommodated in a socket body of a connector bulb socket. The terminal includes a base, an elastic contact portion adapted to contact a filament or an earth of a bulb on one side of said base, and a connecting portion adapted ...
09/27/1994
4915667Elastic socket for light bulbs and fuses
A socket for light bulbs and fuses has a metallic cylinder bulb or fuse receptacle having a longitudinal opening extending from its opening end across the opposed edges of which the opposed free ends of a coil spring are attached to frictionally engage a ...
04/10/1990
4872852Child resistant electrical socket or socket attachment
A child resistant electrical light socket for resisting removal of a threaded base of a light bulb therefrom comprising an outer portion having an opening to receive the bulb and a pair of electrical contacts, an inner rotatable sleeve with mating threads...
10/10/1989
4768966Lampholder
A lampholder for a screw-in lightbulb has a body supporting two cable terminals for connection to an electrical supply, and a contact carrier mounted on the body and defining a bulb receiving socket, the contact carrier being movable between first and sec...
09/06/1988
4508417Plug-in wire terminal system
The present invention provides a plug-in wire terminal system for a lamp socket. The system includes a bushing mounted in a passage through the base wall of the socket and a terminal gripping the lead of a connecting conductor that is adapted to plug into...
04/02/1985
4450510Incandescent-fluorescent compatible lighting products
Ordinary incandescent lighting products, such as table lamps, floor lamps, ceiling fixtures, etc., are designed to be used with regular screw-in incandescent lamps, and can not be used with non-self-ballasted fluorescent lamps--even if these had been furn...
05/22/1984
4441782Lampsocket mechanism
The present invention provides a mechanism for centering the screw base of an incandescent lamp in the socket of a porcelain base having thread segments molded directly onto the inner wall of the socket. A bias contact is provided at the inner wall of the...
04/10/1984
3976349Electrical socket
Electrical socket device includes a threaded shell having inwardly projecting protuberances in the shell for cleaning the threaded base of the lamp when screwed into the socket. A resiliently mounted center contact arranged at the bottom of the socket has...
08/24/1976
 
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