Relay with automated overtravel adjustment

Details Relay with automated overtravel adjustment Relay with automated overtravel adjustment

2008-05-06

2010-12-14

Enad, Elvin G (Department: 2832)

Electricity: magnetically operated switches, magnets, and electr

Electromagnetically actuated switches

Multiple contact type

C335S078000

Reexamination Certificate

active

07852179

ABSTRACT:
An electromagnetic relay has a relay coil, an armature, a pusher and a contact system. The armature is actuated by the relay coil, and linked to the pusher to drive the pusher to operate the contact system. A set of stationary contact springs and a set of moveable contact springs have a gap separating them. The moveable contact springs connect to the pusher and to a pivot point. The stationary springs have a notch therein adjacent to the base structure portion. The pusher movement causes the stationary contact springs and the moveable contact springs to engage or disengage, and to automatically adjust the overtravel angle of the stationary contact springs relative to the moveable contact springs by bending the stationary contact spring at the notch of the stationary contact spring.

REFERENCES:
patent: 3076880 (1963-02-01), Ehrismann
patent: 3624571 (1971-11-01), Magida
patent: 3748611 (1973-07-01), Heath
patent: 5289144 (1994-02-01), Liao
patent: 5572176 (1996-11-01), Heinzl et al.
patent: 5905422 (1999-05-01), Doneghue
patent: 0 844 635 (1998-05-01), None
patent: WO 00/24019 (2000-04-01), None
European Search Report, International Application No. EP 09 15 9280, International Filing Date Apr. 8, 2010.

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