Circuit breaker handle and lost motion connected shield

Details Circuit breaker handle and lost motion connected shield Circuit breaker handle and lost motion connected shield

1979-11-09

1981-05-05

Broome, Harold

Electricity: magnetically operated switches, magnets, and electr

Electromagnetically actuated switches

Automatic circuit-interrupting devices

200304, 335 17, 335202, H01H 902, H01H 1304

Patent

active

042662095

ABSTRACT:
A molded elongated arcuate shield is snap-fitted to a circuit breaker operating handle to achieve a lost motion connection thereto. The operating handle projects through an elongated wall opening in the circuit breaker housing and is movable longitudinally thereof. The shield is disposed between an arcuate interior surface of housing and an arcuate surface of an apron formed integrally with the handle. While the apron above is too short to close the wall opening for all positions of the handle, the apron in cooperation with the shield fully closes the wall opening for all positions of the handle. Latch tabs formed integrally with the shield engage a blocking formation internally of the housing to hold the shield stationary while the handle moves from its On to Trip position. In the former position ON indicia carried by the apron is viewable through an aperture in the shield through which the handle extends, and when the handle is in its Trip position the latched shield blocks the ON indicia from view. Labyrinth-type gas seals are provided adjacent the longitudinal edges of the wall aperture by longitudinally extending ribs formed integrally with the shield and extending into cooperating slots inside the housing wall.

REFERENCES:
patent: 1780684 (1930-11-01), Owens
patent: 3137780 (1964-06-01), Powell
patent: 3319035 (1967-05-01), Gelzheiser
patent: 3341791 (1967-09-01), Leonard

Affiliated with

Also associated with

Rating

Circuit breaker handle and lost motion connected shield does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Circuit breaker handle and lost motion connected shield, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Circuit breaker handle and lost motion connected shield will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-298189