Having Mutilated, Irregular, Interrupted, Or Discontinuous Contact Thread Patents (Class 439/665)
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Patent number: 7413456Abstract: The present invention relates to an electrical socket for a standard light bulb. The socket is configured to allow the bulb to be pushed into and pulled from the socket. The sockets are provided with spring members where the spring members have ridges thereon to engage the threaded end of the light bulb. The spring members are unevenly spaced about the circumference of the socket and the spring members are provided with an upper end that can move vertically away from the bottom of the socket. When a bulb is pushed into the socket, the force of the bulb on ridges on the spring members cause the spring members to elongate and allow the bulb to slide into the socket. When the bulb is pulled from the socket the spring members elongate allowing the bulb to slide from the socket.Type: GrantFiled: November 14, 2006Date of Patent: August 19, 2008Inventor: Frank DiFusco
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Patent number: 5823829Abstract: In the structure to fit an electric bulb base into its socket and hold it there, the plate springs are provided at plural positions at some interval on the inner circumference of the hollow part of the said socket-shaped connector; each of these plate springs is provided in the direction from the proximity of opening to the recess of the said hollow part; so that the minimum inner circumference of the said hollow part formed by the presence of at least one of the plural plate springs may be smaller than the outer plug circumference of the plug-shaped connector. Further this invention is applicable to the socket structure to hold an electric bulb by using it as the plug-shaped connector, and its socket as the socket-shaped connector.Type: GrantFiled: December 20, 1996Date of Patent: October 20, 1998Inventor: Hiroyuki Suzuki
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Patent number: 5820415Abstract: The present invention relates to a screw socket, wherein the screw area is formed on the inner wall of the neck of the screw socket for receiving a screwed in electric bulb. The screw area is composed of a pair of screws which occupy no more than 1/4 circumference and are opposite to each other. The male mold used for forming the above screws includes active molds with respect to the above screw area, and the precision of the screw threads is kept within the proper tolerence during an injection molding thereof.Type: GrantFiled: December 28, 1994Date of Patent: October 13, 1998Inventor: Ching Chao Chen
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Patent number: 5641303Abstract: A lamp socket including a socket body to hold a lamp bulb, a socket cap fastened to the socket body to hold down the electric wire, a central metal contact plate and side metal contact plate fastened to the socket body to connect the tip contact and ring contact of the lamp bulb to a respective conductor in the electric wire. The side metal contact plate has a longitudinal projecting spring strip raised from one side and then turned longitudinally downward toward the orifice of the socket body, which projecting spring strip is disposed in contact with the ring contact of the lamp bulb to give it an inward pressure when the lamp bulb is threaded into the socket body.Type: GrantFiled: July 14, 1995Date of Patent: June 24, 1997Inventor: Pen-Li Chiu
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Patent number: 5634812Abstract: A safety lamp socket including a socket body to hold a lamp bulb, a socket cap fastened to the socket body to hold down en electrical wire, and two metal contact plates mounted in a respective hole on the socket body to make electrical contact with a respective conductor in the electrical wire, wherein two metal spring plates are respectively mounted in a respective hole on the socket body and suspended below the metal contact plates, which metal spring plates are respectively forced by the tip contact and ring contact of the lamp bulb into contact with the metal contact plates when the lamp bulb is installed; the socket cap has two threaded downward plugs retained to two projecting blocks inside the socket boy for engaging the ring contact of the lamp bulb upon the installation of the lamp bulb, and a curved clamping plate for fastening to a support, the curved clamping plate having a keyhole-like slot for hanging on a wall nail, threaded portions and clamping portions for fastening the lamp socket to tree tType: GrantFiled: July 21, 1995Date of Patent: June 3, 1997Inventor: Ming-Hsiung Chen
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Patent number: 4915667Abstract: 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 bulb or fuse entered into the receptacle cylinder with the coil spring.Type: GrantFiled: July 13, 1988Date of Patent: April 10, 1990Inventor: Jesus E. Tobias-Pader
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Patent number: 4850900Abstract: A light fixture lampholder having at least one bulb socket for receiving a light bulb and a mounting structure for mounting the lampholder to a light fixture. The lampholder includes first and second complementary lampholder sections each integrally molded from a plastic material. The first and second lampholder sections each define integrally molded portions of the bulb socket and the mounting means. Electrical contacts are supported by the first and second lampholder sections for supplying an electrical current to the bulb socket. A coupling device couples the first lampholder section to the second lampholder section, with the respective integrally molded portions of the first and second lampholder sections mating to form the bulb socket and the mounting structure when the first and second lampholder sections are coupled by the coupling device.Type: GrantFiled: November 20, 1987Date of Patent: July 25, 1989Assignee: Triboro Electric Corp.Inventor: Martin J. Yarmark
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Patent number: 4836801Abstract: An electrical connector which can be panel or in-line mounted, and accommodates coaxial, waveguide, or mono-conductor cables. The connector is comprised of two separable halves which mate to form continuous electrical connections. One connector half presents a planar surface carrying two electrically conductive zones, the other connector half carries spring biased electrically conductive protrusions for contact with the zones of the first half to create intimate electrical continuity between the two halves.Type: GrantFiled: January 29, 1987Date of Patent: June 6, 1989Assignee: Lucas Weinschel, Inc.Inventor: Ronald A. Ramirez
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Patent number: 4673238Abstract: A one-piece clamping shell for electric cigar lighters, which comprises a rolled sheet-metal body of tubular configuration, having open ends and a reverse-bend clinched seam extending longitudinally between its ends. At one of its ends the body has a radially inwardly extending flange means configured as a one-turn helical thread, said flange means having notches in it, one of which is bounded by edges that are located in planes spaced axially apart an amount essentially equal to the pitch of said thread, thereby to constitute in effect a nut adapted to be screwed onto an externally threaded shell at the rear of the cigar lighter.Type: GrantFiled: October 4, 1985Date of Patent: June 16, 1987Assignee: Casco Products CorporationInventors: Brooke N. Westover, Peter J. Lupoli, John J. Comerford