US 12,170,177 B2
Isolating ground switch
Matthew A. Widtmann, Wood Dale, IL (US); Adam P. Cook, Wood Dale, IL (US); and Cole J. Blazer, Menomonee Fall, WI (US)
Assigned to MacLean Power, L.L.C., Fort Mill, SC (US)
Filed by MacLean Power, L.L.C., Fort Mill, SC (US)
Filed on Jun. 26, 2020, as Appl. No. 16/913,381.
Prior Publication US 2021/0407749 A1, Dec. 30, 2021
Int. Cl. H01H 19/14 (2006.01); H01H 19/04 (2006.01)
CPC H01H 19/04 (2013.01) [H01H 19/14 (2013.01)] 19 Claims
OG exemplary drawing
 
1. An isolation ground switch comprising:
a housing having a front housing portion and a back housing portion defining a housing cavity therebetween;
a conductive switch plate positioned in the housing cavity and rotatable between a closed position and an open position, wherein the switch plate has a plurality of tabs positioned along a periphery of the switch plate, and wherein peripheral edges are concave between the tabs; and
a plurality of termination studs extending forward from the front housing portion, each termination stud having a conductive projection extending into the housing cavity from the front housing portion, wherein one of the termination studs contacts one of the tabs when the switch plate rotates to the closed position wherein at least one of the plurality of termination studs is connected to a ground lug,
wherein the conductive projection of each of the plurality of termination studs engage one of the contact points on the forward surface of the switch plate when the switch plate rotates to the closed position in which the switch is in a grounded state,
and wherein when the switch plate rotates to the open position, the switch plate does not contact any of the plurality of termination studs so each of the plurality of termination studs is conductively isolated.