US 8,134,092 B2 · Circuit breaker cover attachment

Abstract

A circuit breaker includes a base holding an ampoule assembly, a mechanical cover that fits on the base, and a trim cover which fits on the mechanical cover. The circuit breaker can include cover supports positioned between the ampoule assembly and the base. The cover support includes a coupling member that fits within receiving apertures of the mechanical cover and has a threaded through-channel which aligns with apertures of the trim cover. Screws inserted through the trim cover are received in the through-channel to secure the trim cover, the mechanical cover and the base together. The mechanical cover and the base can have interlocking mechanisms which snap-fit together to further support coupling of the cover and base. The circuit breaker can incorporate a retainer clip which engages an ampoule pin, wherein the clip mounts to the mechanical cover to further support holding of the cover and base together.

Claims17

Dependent claims

A circuit breaker comprising:

a base;
an ampoule assembly having a switch, the ampoule assembly positioned within the base;
a cover support coupled to a side of the ampoule assembly and positioned between the ampoule assembly and the base, the cover support including a cylindrical coupling member having a through-channel;
a mechanical cover coupled to the base and positioned on top of the ampoule assembly, the mechanical cover including a receiving aperture aligned with the coupling member, wherein the coupling member is inserted into the receiving aperture;
and
a screw inserted into the through-channel to secure the mechanical cover to the base via the cover support and prevent damage to the mechanical cover from interruption gases within the circuit breaker.

3 more elements

Dependencies are inferred from the claim text.

Circuit breaker cover attachment

Life of this patent

Circuit breaker cover attachment

Life of this patent

Abstract

Claims17