US 11,984,280 B2
Remote controlled miniature circuit breaker with helical gear and DC motor
Dennis W. Fleege, Cedar Rapids, IA (US); Salaheddine Faik, Marion, IA (US); and Chad R. Mittelstadt, Cedar Rapids, IA (US)
Assigned to Schneider Electric USA, Inc., Boston, MA (US)
Filed by Schneider Electric USA, Inc., Andover, MA (US)
Filed on Nov. 14, 2022, as Appl. No. 17/986,550.
Application 17/986,550 is a continuation of application No. 17/353,888, filed on Jun. 22, 2021, granted, now 11,501,929.
Prior Publication US 2023/0075379 A1, Mar. 9, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. H01H 3/26 (2006.01); H01H 3/40 (2006.01)
CPC H01H 3/26 (2013.01) [H01H 3/40 (2013.01); H01H 2227/036 (2013.01); H01H 2231/032 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A remote controlled miniature circuit breaker, comprising:
a helical gear configured to engage with mating teeth of a slider plate coupled to main contacts of the circuit breaker;
a unidirectional motor mounted in the circuit breaker, configured to respond to an external signal to close the main contacts, to drive the helical gear in a unidirectional rotation while the helical gear engages the mating teeth of the slider plate, thereby moving the slider plate to close main contacts;
a blade pivotally mounted in a housing of the remote controlled miniature circuit breaker, having a moveable main electrical contact that is aligned with a stationary main electrical contact mounted in the housing;
a kicker lever pivotally mounted in the housing, having a first end and a second end on opposite sides of the pivotal mounting of the kicker lever; and
a trip lever pivotally mounted in the housing and separately mounted on a same pivot as is mounted the kicker lever, the trip lever configured to push the first end of the kicker lever against the blade to open the main contacts in a trip operation.