US 11,948,767 B1
Protection device with wall vent for breaking capacity improvement
Roel Santos Retardo, Batangas (PH); Conrado Sagun De Leon, Manila (PH); and Merjaycel Marquinez, Muntinlupa (PH)
Assigned to Littelfuse, Inc., Chicago, IL (US)
Filed by Littelfuse, Inc., Chicago, IL (US)
Filed on Sep. 16, 2022, as Appl. No. 17/932,724.
Int. Cl. H01H 85/43 (2006.01); H01H 85/143 (2006.01); H01H 85/165 (2006.01)
CPC H01H 85/43 (2013.01) [H01H 85/143 (2013.01); H01H 85/165 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A protection device, comprising:
a set of leads extending though a socket body, wherein the socket body comprises:
a first side opposite a second side; and
a third side opposite a fourth side, wherein the third and fourth sides extend between the first and second sides, wherein the third side includes a thermal vent, wherein the thermal vent comprises a first flat surface and a second flat surface recessed into the socket body, towards the fourth side, a first curved surface extending from the first flat surface, a second curved surface extending from the second flat surface, wherein the first and second curved surfaces are i-s-recessed farther into the socket body than the first and second flat surfaces, wherein the first and second curved surfaces are connected by a third flat surface, wherein the third flat surface is parallel to the first and second flat surfaces, and wherein the first and second flat surfaces are recessed farther into the socket body than the third flat surface; and
a fusible element surrounding a central shaft, wherein the fusible element is connected with the set of leads.