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US 5,424,701 AGranted
Operating mechanism for high ampere-rated circuit breakers
AssigneeGeneral Electric Company
InventorsRoger N. Castonguay, James L. Rosen, Mark A. Zaffetti
Life of this patent
Estimating the term…
Abstract
An operating mechanism is disclosed which is capable of meeting electrical code requirements in the world market. The operating springs controlling the OPEN and CLOSED states of the circuit breaker contacts are charged both before and after the contacts are in their CLOSED conditions. The mechanism is both latched and unlatched by operation of a rotating cradle operator.
Claims13
An industrial-rated circuit breaker for high level overcurrent protection comprising:
- an insulative base 11;
- a pair of separable contacts 34,35 within said base, one of said contacts 34 being attached to a movable contact arm 33;
- a contact arm carrier 45 connecting with said movable contact arm within said base and with a contact arm drive link 44 extending outside said base;
- an insulative cover 15 above said base, said cover enclosing a closing shaft 20 and a drive shaft 19, said drive shaft connecting with said contact arm drive link for moving said contact arm carrier and said contact arm between closed and open positions;
- and
- an interface cam 21 interacting with said drive shaft for controlling when said drive link moves said contact arm between said open and closed positions.
3 more elements
An industrial-rated circuit breaker for high level overcurrent protection comprising:
- an insulative base 11;
- a pair of separable contacts 34,35 within said base, one of said contacts 34 being attached to a movable contact arm 33;
- a contact arm carrier 45 connecting with said movable contact arm within said base and with a contact arm drive link 44 extending outside said base;
- an insulative cover 15 above said base, said cover enclosing a drive shaft 19, said drive shaft connecting with said contact arm drive link for moving said contact arm carrier and said contact arm between open and closed positions;
- and
- an interface cam 21 interacting with said drive shaft for controlling when said drive link moves said contact arm between said open and closed positions.
3 more elements
Dependencies are inferred from the claim text.