Patent ID: 6596952
Filing Date: 2003-07-22
Classification: H01H

Abstract:
A rotary handle operator for a circuit breaker having an operating lever, said rotary handle operator comprising:a housing defining a face, said face defining an abutment surface; a handle pivotally secured to said face, said handle being structured for operative connection to an operating lever of a circuit breaker, said handle pivoting between an open position corresponding to the open position of the circuit breaker's operating lever, and a closed position corresponding to the closed position of the circuit breaker's operating lever; a lock plate pivotally secured within said handle, said lock plate having a lock-engaging end defining an aperture dimensioned and configured to receive a shank of a lock, and an abutment surface-engaging end, said lock plate pivoting between a locked position wherein said abutment surface-engaging end engages said abutment surface and said aperture within said lock-engaging end protrudes from said handle, and an unlocked position wherein said lock plate is disengaged from said abutment surface; when said handle is in said open position, said lock plate further having a live spring, made as one piece with said lock plate, said spring being dimensioned and configured to bias said lock plate towards said unlocked position.