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:
Aug. 22, 1978
Filed:
Jan. 31, 1977
Applicant:
Inventor:
Joseph H Lipperts, Hengelo, NL;
Assignee:
Hazemeijer B.V., Hengelo, NL;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01H / ;
U.S. Cl.
CPC ...
2001 / ; 2001 / ;
Abstract
A vacuum switch which includes a stationary contact element and a movable contact element, at least one of the elements comprising a disc-shaped contact portion and a bush-shaped portion, and a conductor positioned within the bush-shaped portion and electrically connected in series with the associated contact element; the conductor being in spiral form and the spaces between the turns of the spirals, between the conductor and the bush-shaped portion and between the conductor and the disc-shaped contact portion being partially or completely filled with a solid insulating material.