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Class Information
Number: 337/32
Name: Electricity: electrothermally or thermally actuated switches > Electrothermally actuated switches > Space discharge device (gaps, lightning arrester, etc.) > With fusible element (e.g., cutout means) > With grounding means
Description: Subject matter including a plate or other grounding terminal means, whereby, upon the occurrence of an abnormal voltage, a current discharge takes place to ground with the gap resuming a nonconducting condition when the voltage returns to normal value.










Patents under this class:
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Patent Number Title Of Patent Date Issued
8217750 3-electrode surge protective device Jul. 10, 2012
8203819 Electrical protection component with a short-circuiting device Jun. 19, 2012
7701688 Structure for installing lightning arrester for electric pole Apr. 20, 2010
6492894 Coaxial fuse and protector Dec. 10, 2002
6307462 Low profile mount for metal oxide varistor package with short circuit protection and method Oct. 23, 2001
6204746 Thermal overload mechanism Mar. 20, 2001
5952910 Isolator device for arrester Sep. 14, 1999
5844785 Protector device with isolated ground connector Dec. 1, 1998
5805070 Device for indicating a destroyed arrester Sep. 8, 1998
5644465 Surge arrester with external short-circuit device Jul. 1, 1997
5561582 Failsafe device for use with electrical surge suppressor Oct. 1, 1996
5508675 Miniature gas tube assembly with back-up air gap Apr. 16, 1996
5424901 Sidactor fail-safe device Jun. 13, 1995
5398152 Overvoltage protector Mar. 14, 1995
5371648 Plug-in protection module for a module for rapid interconnection of telephone lines Dec. 6, 1994
5359657 Telephone line overvoltage protection apparatus Oct. 25, 1994
5357568 Telephone line overvoltage protection method and apparatus Oct. 18, 1994
5313183 Gas-tube arrester May. 17, 1994
5248953 Thermal overload protection device for electronic components Sep. 28, 1993
5247273 Surge absorber for protection of communication equipment connected to communication lines Sep. 21, 1993
5224013 Miniature station protector modules Jun. 29, 1993
5195015 Line protector for a communications circuit Mar. 16, 1993
5157580 Protective plug for connector banks of telecommunication and data systems Oct. 20, 1992
5101317 Overload protector for telecommunications systems Mar. 31, 1992
5029302 Fail safe gas tube Jul. 2, 1991
5027100 Gas tube fail safe device for telephone protector modules Jun. 25, 1991
5008772 Telephone circuit protector module having plural circuit grounding means Apr. 16, 1991
4980909 Protector module for laminar type telephone blocks Dec. 25, 1990
4912592 Gas-filled surge arrestor Mar. 27, 1990
4910489 Gas tube fail-safe device for telephone protector modules Mar. 20, 1990
4907120 Line protector for a communications circuit Mar. 6, 1990
4901188 Line protector with spring Feb. 13, 1990
4887183 Communication system thermoprotection device for over voltage suppressor mounted in overvoltage suppressor magazines of communication systems Dec. 12, 1989
4882748 Homologated protector modules for telephone connector blocks Nov. 21, 1989
4876626 Central office protector module with alarm indicator Oct. 24, 1989
4866563 Transient suppressor device assembly Sep. 12, 1989
4866562 Self-contained air gap assembly Sep. 12, 1989
4866561 Lightning arrester device comprising at least one fusible element Sep. 12, 1989
4794362 Alternating current power circuit and fuse therefor Dec. 27, 1988
4737880 Station protector for communications lines Apr. 12, 1988
4736269 Voltage surge limiter with grounding assembly Apr. 5, 1988
4733325 Electrical protective devices Mar. 22, 1988
4730229 Male base subscriber circuit protector module Mar. 8, 1988
4717902 Electrical components incorporating a temperature responsive device Jan. 5, 1988
4675778 Overload protector for communications systems Jun. 23, 1987
4654619 Module for the protection of multiwire lines against overvoltages Mar. 31, 1987
4649456 Three element gas tube protector module Mar. 10, 1987
4641218 Protector with circuit disabler Feb. 3, 1987
4633360 Station protector Dec. 30, 1986
4594635 Overload protector for communication systems Jun. 10, 1986

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