...that "patent leather" got its name because the process of applying the polished black finish to leather was once patented?
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 8167637 | Shock free bulb insert The inventive concept is directed to shock free bulb socket that is inserted in an existing light bulb socket to forego any possible electric shock when there is no light bulb in the existing bulb socket and the electric switch happens to be in an “on” status. T... | 05/01/2012 |
| 7854621 | Touch-safe socket A touch-safe socket for electrical articles, such as bulbs having threads, is provided with a movable carriage-carrying poles which are connected to an electrical supply via a wire. The movable carriage has threads which cooperate with threads on the electrical arti... | 12/21/2010 |
| 7387398 | Chamber light socket and refrigerator An object is to provide a chamber lamp socket in which a chamber lamp can be prevented from being loosened even if there is strong impact or vibration and from which the chamber lamp can be easily detached, and a combustible refrigerant applied refrigerator in which... | 06/17/2008 |
| 7294006 | Depression-to-release bulb socket A socket bulb includes a shell inside which a depression device, a clamp device, and conductive plates are arranged. The shell has a lower opening through which the base of a bulb can be put into the shell in a linear movement. Depression operation of the depression... | 11/13/2007 |
| 6147299 | Device for improving shielding effectiveness of an electromagnetic interference enclosure A device for improving the shielding effectiveness of apertures used for mounting electrical component in an enclosure from Electromagnetic Interference (EMI). The device includes a hollow housing which contains and a disc with an aperture, where the disc... | 11/14/2000 |
| 6010346 | Light bulb socket with water draining structure A bulb socket with water draining structure is disclosed, including a water drainage hole formed on a side wall of the socket to allow water entering the socket to be expelled therethrough. The bulb socket also includes shielding members which shield the ... | 01/04/2000 |
| 5967847 | Lampsocket with means to reject incorrectly dimensioned lamps A lampsocket is provided with a body having an extension both of which contain a continuous bore of a first predetermined diameter dimension to prevent the seating and electrical connection of an electrical lamp having a neck dimension in excess of first ... | 10/19/1999 |
| 5893769 | Bulb socket with fastening structure for electric connectors A bulb socket with a fastening structure for electrical contacts, which comprises a body portion and a secondary body portion to be welded together by means of a supersonic welding; inside the socket, there are screw threads for fastening a bulb. The bott... | 04/13/1999 |
| 5807134 | Electrical lamp socket assembly In an electrical lamp socket assembly for receiving an externally threaded light bulb having a central longitudinal axis and providing electrical coupling to a pair of lead wires, the improvement wherein a central conductor extends through a transversely ... | 09/15/1998 |
| 5722853 | C-type bulb socket having a draining feature A C-type light bulb socket for outdoor use is provided having a plurality of apertures arranged on the socket shell draining water therefrom. Therefore, the potential danger of a short circuit caused by accumulated water is eliminated.... | 03/03/1998 |
| 5702268 | Christmas lamp socket The present invention relates to a Christmas lamp socket. The socket mainly includes a housing member and an affixing part. The affixing part has a pair of opposing erection parts to be fitted into, and secured by, a pair of corresponding elongate trenche... | 12/30/1997 |
| 5702267 | Structure 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 |
| 5690506 | Decorative lamp holder A decorative lamp holder has a bulb on a socket shell. The socket shell comprises an interior, an inserted groove formed on an inner periphery of the socket shell longitudinally, an outer recess at the bottom of the socket shell, an inserted hole and a po... | 11/25/1997 |
| 5683271 | Lampholder with means to reject incorrectly dimensioned lamps A lampsocket is provided with a body having an extension both of which contain a continuous bore of a first predetermined diameter dimension to prevent the seating and electrical connection of an electrical lamp having a neck dimension in excess of first ... | 11/04/1997 |
| 5660561 | Lamp bulb socket A lamp bulb socket include a socket body having a bore to receive therein the base of a lamp bulb. An inner threading is provided on a surface of the bore which is defined by a helical slot surrounding the bore intervened with a helical rib. A chamber is ... | 08/26/1997 |
| 5622513 | Lamp Socket A lamp socket including a socket body consisting of a left half and a right half, wherein the right half has a base and a right half circularly arched upright wall raised from the base, the base having a rectangular slot and retaining hole in communicatio... | 04/22/1997 |
| 5590952 | Lamp assembly for Christmas tree light sets A lamp assembly for Christmas tree light sets, including a lamp socket having a positive metal contact plate with raised portions and a negative metal contact plate on the inside, and a lamp bulb threaded into the lamp socket to force its ring contact and... | 01/07/1997 |
| 5573419 | Safety 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 |
| 5569044 | Christmas lamp socket A Christmas lamp socket is provided that includes a socket body and an inner cylindrical wall inserted into the socket body. The socket body has two opposing elongate vertically directed plates inside, an annular groove formed in an inner surface at an up... | 10/29/1996 |
| 5552348 | Bulb socket structure A bulb socket structure includes a socket housing to receive therein a bulb, first and second electrically-conductive members which are located within a channel formed on the socket housing to have sharpened tips thereof piercing into and forming electric... | 09/03/1996 |
| 5531609 | Structure of lamp socket A lamp socket of the type having a first contact metal plate and a second contact metal plate fastened to a socket body thereof, and a socket cap fastened to the socket body to hold down an electric wire causing the first and second contact metal plates t... | 07/02/1996 |
| 5518425 | Decorative bulb socket A socket assembly which includes a socket, an annular positioner and two leaf conductors. The socket includes two slots defined in a bottom and a groove defined in an internal surface. The annular positioner includes an opening defined therein and a ridge... | 05/21/1996 |
| 5514006 | Turn knob lampholder A unitary lampholder (10) including a lamp socket (12,14) as well as a multi-position switch which can take the form of a three-way, two circuit switch for operating a two filament lamp, a single circuit switch for operating a single filament lamp or arra... | 05/07/1996 |
| 5480317 | Socket for receiving a threaded member which prevents cross-threading A socket for receiving a threaded article therein for complementary threaded engagement between the article and the socket. The socket includes one or more sets of threads integrally formed upon an interior side wall of the socket wherein at least one thr... | 01/02/1996 |
| 5408392 | Lamp socket for use in refrigerator A socket for a refrigerator lamp has a body with a chamber to receive the base of the lamp. The chamber side wall is threaded to engage the lamp base threads. An inclined ramp between the threads and the bottom of the chamber engages the lamp base to prov... | 04/18/1995 |
| 5380215 | Secure lamp base A secure lamp base includes an improved base which is provided with a slot having a bottom channel, and a groove is formed on the projection of the base. A pair of conductive slices have their inner ends to be a hook having two sideways tips, the hook of ... | 01/10/1995 |
| 5339231 | Safety night light system and method of manufacture thereof An improved night light incorporating effective safety features that greatly reduce the risk of electrocution by small children. The housing of the night light flares out towards its back surface to prevent an adult's or child's fingers from accidently co... | 08/16/1994 |
| 5241746 | Threaded receptacle manufacturing method including mounting of electrical contact members within the receptacle A molded receptacle including an interior wall surface and screw threads formed on the interior wall surface by a mold core. The threads have a predetermined thread profile including root radii substantially corresponding to a desired thread standard and ... | 09/07/1993 |
| 5176532 | Threaded receptacle method and device A molded receptacle including an interior wall surface and screw threads formed on the interior wall surface by a mold core. The threads have a predetermined thread profile including root radii substantially corresponding to a desired thread standard and ... | 01/05/1993 |
| 5024406 | Device for hanging outdoor Christmas lights A hanging outdoor christmas light holder for a lamp socket fixture is provided and consists of a removably attaching member having a first component that is permanently attachable to a static structure on a building, while a second mating component is car... | 06/18/1991 |
| 4911367 | Electrostatic spray gun A continuous electrical connection between a high voltage power source and a paint charging electrode in an electrostatic spray gun. The electrode is mounted on a valve needle which is reciprocated by a trigger mechanism as the spray gun is operated. A no... | 03/27/1990 |
| 4441782 | Lampsocket 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 |
| 4382654 | Resilient contact support for lamp socket A lamp socket is provided with a body member or shell having an opening in its top and first and second electrical contacts in the shell to make electrical contact with a light bulb inserted into the shell. A tapered, resilient support arm projects inward... | 05/10/1983 |
| 4184734 | Lampholder A lampholder, particularly for electric Christmas tree candles, comprises two substantially but not quite similar parts which are united with each other substantially on an axial plane, at least along a major portion of their axial extension. To permit au... | 01/22/1980 |
| 4156265 | Safety sockets and loads Load and socket arrangements are disclosed wherein contacts within a socket are connected to an electrical energy source by a magnetic reed switch responsive to magnetic material carried by the load. The socket is disconnected from the source and incapabl... | 05/22/1979 |