Title: Circuit breaker drawout with engaged position latch

Abstract: Drawout apparatus includes a carriage mounting a circuit breaker and supported on rails to facilitate racking screw induced movement of the breaker into and out of an electrically engaged position with respect to switchboard primary disconnect contacts. A carriage mounted latch lever is controllably positioned in response to the turning of the racking screw so as to latchably engage a switchboard mounted latch as the circuit breaker arrives at its engaged position, thereby assisting in holding the breaker thereat against blowout forces attending a high fault current interruption. Initial rotation of the racking screw to withdraw the breaker from its engaged position incidentally disengages the latch lever and latch.

Do you think this is a good invention? Vote now:

Votes so far: For:(0) Against:(0)
Other info:

Inventors: Ericson, Eric A. (Plainville, CT, US)

Application Number: 955432
Filing Date: 1978-10-27
Publication_date: 1980-05-06
Assignee: General Electric Company (New York, NY)
Primary Class(es): 361/608 200/50.25, 200/322
Other Classes:
US Patent Ref:

3663773	May, 1972	Powell	361/339.
4004113	Jan, 1977	Ericson	200/50.
4012610	Mar, 1977	Ericson	200/50.

Other Refs:
Primary Examiner: Tolin, Gerald P.
Assistant Examiner:
Attorney: Cahill; Robert A., Bernkopf; Walter C., Schlamp; Philip L.