The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 17, 1981
Filed:
Jan. 24, 1979
Applicant:
Inventors:
Peder R Solheim, Porsgrunn, NO;
Oddmund Wallevik, Porsgrunn, NO;
Assignee:
Norsk Hydro a.s., Oslo, NO;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01H / ;
U.S. Cl.
CPC ...
2001 / ; 2001 / ; 337 35 ; 337143 ; 337156 ; 337221 ; 337401 ;
Abstract
A high current switch includes first and second contact plates, each having a contact surface. The contact plates are moved between a closed position with the contact surfaces in contact and an open position with the contact surfaces separated. An electric bridge has opposite ends connected to the contact plates and spans the contact surfaces. During opening of the switch, the electric bridge, in the form of a fuse, remains integral and provides a secondary electrical connection between the contact surfaces, thus preventing arcing therebetween. Upon complete opening of the switch, the electrical bridge ruptures.