Luis A Sepulveda

US Patent:

45008639, Feb 19, 1985

Filed:

Jun 24, 1983

Appl. No.:

6/507609

Inventors:

Luis F. Sepulveda - Fajardo PR

Assignee:

Challenger Caribbean Corporation - Canovanas PR
Challenger Zinsco, Inc. - Rio Piedras PR
Commander Electrical Equipment, Inc. - Scarborough

International Classification:

H01H 7324

US Classification:

337 70

Abstract:

A circuit breaker includes a fixed contact, a pivotable contact carrier having a movable contact for engagement with the fixed contact, a pivotable trip arm, a latch adapted to latch the trip arm, a thermostatic element adapted to engage the latch, and an overcenter spring coupled between the contact carrier and the trip arm. In the event of an overcurrent, the latch releases the trip arm, and the overcenter spring retracts the contact carrier, disengaging the contacts. An improved trip arm includes an integrally formed, perpendicularly extending lug which strikes the contact carrier, providing an impact force to disengage the contacts in the event of welding of contacts together.

US Patent:

44356242, Mar 6, 1984

Filed:

Sep 23, 1982

Appl. No.:

6/421754

Inventors:

Luis F. Sepulveda - Fajardo PR

Assignee:

Challenger Caribbean Corporation - Canovanas PR
Challenger Products Corporation - Rio Piedras PR
Commander Electrical Equipment, Inc. - Scarborough

International Classification:

H01H 924

US Classification:

200 42T

Abstract:

A lock off-lock on for a handle of an electric circuit breaker includes a unitary metallic member having a first handle engaging portion adapted to be inserted into an opening of a circuit breaker handle. The opening can be provided in a direction perpendicular to the reciprocating movement path of the handle between "on" and "off" positions. The member includes a second handle engaging portion joined to the first portion by a bight to form a U-shaped structure. The second handle engaging portion engages a surface of the handle which is in exposed adjacency to a dependent arcuate portion which is in proximal relationship with the interior of a slot in the housing in which the handle outwardly extends. A flat spring, coupled to a part of one side of the second portion by an angular bend, is engageable with the dependent arcuate portion and is in abutting relationship with the housing at one of the edges of the slot. A flange is coupled to the flat spring proximal to the bight and is bent outwardly away from the housing so as to facilitate removal of the lock off-lock on from the handle.