Spring-driven mechanism for rectilinear displacement circuit...

Details Spring-driven mechanism for rectilinear displacement circuit... Spring-driven mechanism for rectilinear displacement circuit...

2005-07-12

2005-07-12

Lee, Richard K. (Department: 2832)

Electricity: circuit makers and breakers

Contact moved by sudden release of stored energy,

C200S401000, C200S318200, C200S324000, C218S154000, C335S171000

Reexamination Certificate

active

06917006

ABSTRACT:
An operating mechanism for a rectilinear motion circuit-breaker, for performing an open-close-reopen cycle, and operating on an operating rod of the circuit-breaker and including closing and opening springs. The opening spring operates on the operating rod. The closing spring operates on a crank end whose other end is connected to a shaft fastened to a flywheel and on which is mounted a closing cam cooperating with a roller on the operating rod. A closing pawl retains the closing spring in a compressed position, opening the closing pawl releasing the closing spring to rotate the cam, thereby closing the circuit-breaker and rearming the opening spring. A rearming motor couples to the shaft by a freewheel. A pawl triggers opening retaining the operating rod against force of the opening spring in the closed position of the circuit-breaker and is adapted to receive an opening command.

REFERENCES:
patent: 3138676 (1964-06-01), Gratzmuller
patent: 4654494 (1987-03-01), Wuthrich
patent: 4841788 (1989-06-01), Thuries et al.
patent: 5508487 (1996-04-01), Smith et al.
patent: 5512869 (1996-04-01), Thuries
patent: 5571255 (1996-11-01), Baginski et al.
patent: 5628394 (1997-05-01), Benke et al.
patent: 5740003 (1998-04-01), Seymour et al.
patent: 5756952 (1998-05-01), Thuries
patent: 2747502 (1997-10-01), None
patent: 537 180 (1941-06-01), None

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