Knife blade and clip contact arrangement

Details Knife blade and clip contact arrangement Knife blade and clip contact arrangement

1984-04-04

1986-05-20

Marcus, Stephen

Electricity: circuit makers and breakers

Electric switch details

Contact

200162, 200255, 339255P, 335195, H01H 142, H01H 154

Patent

active

045903433

ABSTRACT:
A contact arrangement for an isolating switch used as a ground connection of a switch system includes two switch pieces which are movable relative to one another, one of which is a knife and the other is a gripper. The gripper includes two contact pieces which are located opposite and parallel to one another and which engage the knife in the cutting-in state. Each contact piece is in turn formed by a plurality of adjacent contact elements. Such a contact arrangement is simple and economical to produce, while providing reliable contact-making for both high and low currents in spite of only slight static contact pressure. This result is achieved because the contact elements are U-shaped contact lamellae. Each lamella includes first and second legs connected via a curved part, the first leg being supported on the knife in the cutting-in state and the second leg being supported on current terminals formed on the contact pieces.

REFERENCES:
patent: 2695350 (1954-11-01), Schultz
patent: 2732468 (1956-01-01), Curtis et al.
patent: 3201556 (1965-08-01), Baird
patent: 3887888 (1975-06-01), Bayles et al.
patent: 4087668 (1978-05-01), Nakanishi et al.
patent: 4379956 (1983-04-01), Cleaveland et al.
patent: 4445732 (1984-05-01), Wafer

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