Lawrence Welk, the bandleader who entertained millions of Americans over a generation of broadcasting his TV show, once received a patent: for a music-themed design of an ashtray.
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| Number | Title | Issue Date |
| D624020 | Retracting extension cord reel | 09/21/2010 |
| D615929 | In-line surge suppressor | 05/18/2010 |
| D613248 | Power cord with socket | 04/06/2010 |
| D604244 | Cord reel | 11/17/2009 |
| D604245 | Cordset assembly | 11/17/2009 |
| D597031 | Tangle-free extension cord | 07/28/2009 |
| 7210960 | Extension cord and method of manufacturing the same A new extension cord and its manufacturing method. The new extension cord has a plurality of sockets at intervals along its longitude direction so as to reduce the whole length of extension cord and increase the number of the sockets. The jacks of sockets are protec... | 05/01/2007 |
| 7114603 | Extension cord holder An extension cord holder is provided. The extension cord holder has a main body. A first holding portion and a second holding portion are disposed on the two sides of the main body, and these two portions are in communication with each other. A first wheel assembly ... | 10/03/2006 |
| D527038 | Retractable musician's cord | 08/22/2006 |
| D510067 | Plug retention apparatus | 09/27/2005 |
| D489328 | Portable receptacle extension | 05/04/2004 |
| 5895288 | Plant power line A new plant power line for making cords of all types appear as a growing plant. The inventive device includes a planter container containing a hook and an electric cord having an elongated body with simulated leaves extending from the elongated body. The ... | 04/20/1999 |
| 5518417 | Multiple electrical socket A multiple electrical socket comprises a housing, a base, two reels, two fastening blocks, a shaft, and two extension cords provided respectively with an electrical socket fastened thereto. The reels and the fastening blocks are mounted on the shaft which... | 05/21/1996 |
| 5320560 | Light-permeable extension cord connector An extension cord connector construction wherein the connector components, including a visual power indicator, are encapsulated within a solid, light-permeable body to form the connector. By suspending the components in this manner, the lamp can be seen f... | 06/14/1994 |
| 5292257 | Modular outlet strip A modular surge protector is provided where only the number and types of modules needed are purchased and connected together by quick connect means. Generally, the modular surge protector includes a power distribution module, which is connected to a sourc... | 03/08/1994 |
| 5286213 | Locking receptacle An outlet arrangement is disclosed that positively engages the straight terminal blades of most standard plugs. A positive clamping action about the broad sides of the terminal blade holds the plug into the outlet. The user controls the clamping action by... | 02/15/1994 |
| 5272587 | Extension socket This invention relates to an extension socket and in particular to one including a base, a pair of conducting plates, a grounding plate, an overload protector, a light-emitting diode, a pulse absorber and a cover, whereby both sides of the extension socke... | 12/21/1993 |
| 5171155 | Safety lock for electrical appliance plugs An apparatus to prevent the insertion of the prongs of an electric cord plug into an electric outlet, where at least one of the prongs has a hole through it, includes a casing having ports for receiving the prongs of the plug, a latch within the casing fo... | 12/15/1992 |
| 5109316 | Multiple outlet receptacle with circuit breaker and continuity switch mechanisms A multiple outlet receptacle has a molded insulating body which includes multiple groups of internal contact elements disposed in the body and defining multiple electrical outlets adapted for receiving multiple outlet plugs. The receptacle also has a circ... | 04/28/1992 |
| 5069634 | Snap lock extension cord and power tool connector The present invention is directed toward an electrical connection device that positively engages the plug and receptacle ends of electrical devices to extension cords, adjacent extension cords, or positively engages an electrical cord with a power recepta... | 12/03/1991 |
| 5007857 | Electrical receptacle with power indicator light An electrical receptacle configured for electrical connection with an electrical plug having a pair of contact blades. The receptacle includes a first pair of receptacle contacts configured for electrical connection with the pair of contact blades. A seco... | 04/16/1991 |
| 4998891 | Holder for maintaining electrical connections A two-piece, shell-like holder composed of two telescopically mating shell portions sized to be connected together and to maintain a male and a female plug in electrical engagement with one another so that the interconnected shell structure assumes axial ... | 03/12/1991 |
| 4897052 | Intermediate electrical component for a molded plug An intermediate electrical component for an electrical connector has a body portion and a cap portion interfitted therewith. A plurality of terminal elements having stranded conductors connected to them are positioned in the body portion and substantially... | 01/30/1990 |
| 4876713 | Signal circuit protector device for consumer use A solid state protector device is disclosed for protecting a consumer's solid state electronic circuits from abnormal voltage and current surges. The device comprises an enclosure made of electrically non-conductive material having front, rear, side, top ... | 10/24/1989 |
| 4871924 | Safety power receptacle with hot wire switch-through Safety power outlet connected to a plurality of power lines and arranged to receive the prongs of a matching multi-pronged power plug has a receive terminal connected to each power line. The receive terminal is arranged to receive a corresponding prong of... | 10/03/1989 |
| 4839533 | Remote safety switch A foot operated safety switch, preferably including an electronic control reset circuit, is connected between a source of electrical current and the power cord of an electrically operated device having an on/off switch on it. The safety switch operates as... | 06/13/1989 |
| 4664459 | Noiseless solid conductor flexible cable The cable of this invention comprises a pair of solid, flat, flexible electrical conductors of beryllium-copper attached to a reinforcing webbing of braided nylon. The ends of the conductors are soldered to electrical connector sockets and pins which are ... | 05/12/1987 |
| 4215277 | Sequencing light controller A controller for sequentially energizing a plurality of lights, such as commercial display lighting or Christmas tree light strings, includes a plurality of outlet receptacles into which the lights or light strings may be connected, a Triac for each recep... | 07/29/1980 |
| 4095871 | Portable electric current supply device for building sites and the like A portable electric current supply device for building sites and the like. The device is constituted by a housing which in its interior holds current distribution equipment, other electric equipment and/or instruments. All the elements held by the housing... | 06/20/1978 |