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Class Information
Number: 307/141
Name: Electrical transmission or interconnection systems > Switching systems > Switch actuation > With time delay or retardation means
Description: Subject matter having time delay or retarding means.










Sub-classes under this class:

Class Number Class Name Patents
307/141.4 Electrically initiated 178
307/141.8 Series connected switches 54


Patents under this class:
1 2 3 4 5 6 7 8

Patent Number Title Of Patent Date Issued
5883445 Power sharing device Mar. 16, 1999
5879184 Outdoor electrical outlet protector Mar. 9, 1999
5874789 Circuit for integrating a local switch and a remote-control switch Feb. 23, 1999
5862673 Operational control apparatus for home appliances and control method therefor Jan. 26, 1999
5854520 Stove timer and automatic cut off system Dec. 29, 1998
5828018 Light switch cover plate with mechanical timer mechanism Oct. 27, 1998
5821642 Arc prevention circuit for a mechanical switch Oct. 13, 1998
5811892 Power supply system including mechanical output switches for use with a plurality of display tubes Sep. 22, 1998
5798502 Temperature controlled substrate for VLSI construction having minimal parasitic feedback Aug. 25, 1998
5783874 Keypad handling circuits Jul. 21, 1998
5780942 Input circuit and semiconductor integrated circuit device including same Jul. 14, 1998
5760491 Method and circuit for disconnecting a transformer in dependence on whether a load connected thereto requires power, or not Jun. 2, 1998
5739594 Controller for automatic transfer switches Apr. 14, 1998
5719362 Timer control device for wall mounted toggle switch Feb. 17, 1998
5712515 Power source adaptor Jan. 27, 1998
5698908 Buffered DC power supply system Dec. 16, 1997
5646461 Stop switch apparatus for an engine Jul. 8, 1997
5642104 Audible alert for automatic shutoff circuit Jun. 24, 1997
5642001 Overdrive circuit Jun. 24, 1997
5627417 Compressor minimum off-time switch for series connection with delay-on-break feature May. 6, 1997
5619076 Method and apparatus for connection and disconnection of batteries to uninterruptible power systems and the like Apr. 8, 1997
5615107 Power control method and apparatus Mar. 25, 1997
5612582 Switching device Mar. 18, 1997
5581132 Peak demand limiter and sequencer Dec. 3, 1996
5574320 Load drive circuit Nov. 12, 1996
5554895 Electronic latching circuit for momentary contact switches Sep. 10, 1996
5530300 Extended range wired remote control circuit Jun. 25, 1996
5530615 Method and apparatus for enhancing relay life Jun. 25, 1996
5528914 Security tag and complemental deactivation apparatus Jun. 25, 1996
5530301 Electronic delay turn off switch Jun. 25, 1996
5506455 Electrical appliance with reduced electric field emissions Apr. 9, 1996
5481452 Programmable switching unit Jan. 2, 1996
5473204 Time delay switch Dec. 5, 1995
5464953 Timing apparatus for a pizza oven switch Nov. 7, 1995
5432387 Power source voltage supply controlling apparatus Jul. 11, 1995
5430598 Programmable time interval power strip Jul. 4, 1995
5430600 Latching relay control circuit Jul. 4, 1995
5424904 Circuit for electrically controlled intermittent motion Jun. 13, 1995
5374856 Timer motor incremental drive Dec. 20, 1994
5309032 Wall switch timer May. 3, 1994
5306957 Switch lever operating device with automatic timer Apr. 26, 1994
5294840 Adjustable cycle timer for livewell bait pumps and such Mar. 15, 1994
5287009 Circuit module fan assembly Feb. 15, 1994
5283475 Television viewing control unit Feb. 1, 1994
5272386 Programmable timer power switch unit with emergency override reset Dec. 21, 1993
5266841 Switch assembly for a timing module Nov. 30, 1993
5258656 Electronic on/off timer apparatus and method incorporating predetermined time delay intervals Nov. 2, 1993
5237207 Master electrical load control system Aug. 17, 1993
5221877 Power reduction control for inductive lighting installation Jun. 22, 1993
5214310 Timing mechanism with a PTC thermistor May. 25, 1993

1 2 3 4 5 6 7 8










 
 
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