US 11,942,765 B1
Vacuum break switch
Dean Carnell Sanders, Clements, CA (US); and Elliott James Gist, Modesto, CA (US)
Assigned to Inertial Engineering and Machine Works, Inc., Stockton, CA (US)
Filed by INERTIA ENGINEERING AND MACHINE WORKS, INC., Stockton, CA (US)
Filed on Jun. 27, 2023, as Appl. No. 18/214,802.
Application 18/214,802 is a continuation of application No. 18/093,198, filed on Jan. 4, 2023, granted, now 11,710,948.
This patent is subject to a terminal disclaimer.
Int. Cl. H01H 33/666 (2006.01); H02B 13/035 (2006.01); H01H 33/662 (2006.01)
CPC H02B 13/0354 (2013.01) [H01H 33/6664 (2013.01); H01H 33/662 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A vacuum switch comprising:
a vacuum bottle containing a fixed electrical contact and a dynamic electrical contact, the vacuum bottle comprising a tubular member that extends between a fixed contact end and a dynamic contact end;
at least 75% of the tubular member encapsulated in a urethane insulator;
a rigid fiberglass shell disposed between an outer silicone ice-and-water shield housing and the urethane insulator.