Electrical switching device having at least one contact point

Details Electrical switching device having at least one contact point Electrical switching device having at least one contact point

2007-09-19

2010-11-23

Friedhofer, Michael A (Department: 2833)

Electricity: circuit makers and breakers

Solid contact

Rocking actuator

C200S558000, C200S339000

Reexamination Certificate

active

07838788

ABSTRACT:
The disclosure relates to an electrical switching device, in particular a thermal relay having at least one contact point in which, in a first position, the contact point is open and, in a second position, the contact point is closed, having a swivelling contact carrier on which the at least one moving contact piece is held and having an actuator for driving the contact carrier. The actuator is a swivel element, which can rotate about a first axis of rotation, said swivel element being made up of two partial elements, which can be slid in mutually opposing directions and are pushed apart by spring force, of which the first partial element is rotatably mounted and the second partial element acts together with the contact carrier at its free end.

REFERENCES:
patent: 2930865 (1960-03-01), Roeser
patent: 3591747 (1971-07-01), Dennison
patent: 3598943 (1971-08-01), Barrett
patent: 5158172 (1992-10-01), Roeser et al.
patent: 6459060 (2002-10-01), Bartok
patent: 6576855 (2003-06-01), Levendis et al.
patent: 6596956 (2003-07-01), Czarnecki
patent: 6911612 (2005-06-01), Seki
patent: 6930269 (2005-08-01), Lee et al.
patent: 6974918 (2005-12-01), Blossfeld
patent: 7026565 (2006-04-01), Lee
patent: 7560656 (2009-07-01), Okatani et al.

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