US 12,237,127 B2
Circuit breaker with integral fuse mounting stud
Cuong Ha, Lincolnwood, IL (US)
Assigned to MP Hollywood, Lombard, IL (US)
Filed by MP Hollywood, Lombard, IL (US)
Filed on Nov. 13, 2023, as Appl. No. 18/507,938.
Application 18/507,938 is a continuation of application No. 17/484,887, filed on Sep. 24, 2021, granted, now 11,817,280.
Prior Publication US 2024/0161988 A1, May 16, 2024
This patent is subject to a terminal disclaimer.
Int. Cl. H01H 37/52 (2006.01); H01H 71/08 (2006.01); H01H 85/02 (2006.01)
CPC H01H 37/52 (2013.01) [H01H 71/08 (2013.01); H01H 85/0241 (2013.01); H01H 2085/0258 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A thermally activated overcurrent circuit breaker device, comprising:
a housing;
a first terminal structure extending into the housing;
a second terminal structure, the second terminal structure comprising a first conductive portion extending into the housing and a second conductive portion outside of the housing, the first conductive portion electrically isolated from the second conductive portion,
a thermally activated overcurrent protection element located within the housing and configured to change shape, in response to current exceeding a breaker threshold current passing therethrough for a period of time exceeding a breaker delay period, from a closed position in which the thermally activated overcurrent protection element forms part of an electrical connection between the first terminal structure and the second terminal structure; and
a fuse supported by the second terminal structure and electrically connecting the first conductive portion of the second terminal structure to the second conductive portion of the second terminal structure, the fuse comprising a fuse element configured to fuse open in response to the current exceeding a fuse threshold current for a period of time exceeding a fuse delay period, wherein the fuse threshold current is higher than the breaker threshold current, and wherein the breaker delay period is longer than the fuse delay period.