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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 |
| 7124488 | Retrofit breaker adapter system and method The present invention is directed to a system for modifying a circuit breaker for removable installation in a cell of switchgear system, wherein the unmodified circuit breaker is not adapted for mounting in the cell. The system includes an adapter frame to which the... | 10/24/2006 |
| 5861597 | Vacuum electrical switch A vacuum switch has an elongated vacuum cartridge with a cylindrical enclosure blanked off by two end-plates, in which there are housed two arcing contacts respectively stationary and movable, and a coil designed to produce an axial magnetic field in the ... | 01/19/1999 |
| 5793008 | Vacuum interrupter with arc diffusing contact design A vacuum circuit interrupter has a coil for generating an axially oriented magnetic field to maintain an electric arc in a diffuse rather than columnar mode upon opening of the interrupter. At least one of two electrodes having abuttable disc shaped conta... | 08/11/1998 |
| 5142110 | Modified magne-blast circuit breaker and method of modification A modified magne-blast vertical racking circuit breaker modified to accept vacuum circuit breakers. The main frame of the magne-blast unit is modified to accept the vacuum breaker operating mechanism and vacuum interrupters, which are connected to the loa... | 08/25/1992 |
