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Class Information
Number: 200/49
Name: Electricity: circuit makers and breakers > Pole switch
Description: Devices adapted to be mounted on a telephone-pole to disconnect the transmission-line. They are usually adapted to be operated from indoors and isolate the telephone during a storm.

Patents under this class:

Patent Number Title Of Patent Date Issued
8536451 High-voltage connection and electric rail vehicle having a high-voltage connection Sep. 17, 2013
6410867 Bolted conical loading joint system Jun. 25, 2002
5942723 Positive locking mechanism for in-line switch Aug. 24, 1999
5874900 Monitoring system and method for an overhead power line phase switch Feb. 23, 1999
5584379 Disconnect switch double motion mechanism Dec. 17, 1996
5560474 Electro/mechanical actuator for circuit disconnect/connect apparatus for overhead power lines Oct. 1, 1996
5534858 Poletop switch automation system Jul. 9, 1996
5488212 Switching device for an on-load tap changer Jan. 30, 1996
5186315 High voltage disconnecting switch Feb. 16, 1993
5025120 Insert for a hydro pole switch Jun. 18, 1991
4688013 Switchgear assembly for electrical apparatus Aug. 18, 1987
4661662 Power line working apparatus Apr. 28, 1987

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