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:
May. 21, 1991
Filed:
May. 25, 1990
Applicant:
Inventor:
Kazuo Yoshida, Hyogo, JP;
Assignee:
Mitsubishi Denki Kabushiki Kaisha, Tokyo, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01H / ; H01H / ;
U.S. Cl.
CPC ...
200277 ; 200250 ;
Abstract
Described herein is a roller contact device wherein, upon moving a drive arm into a contact closing position, a pair of roller contacts are pressed across a pair of stationary contacts through a pair of bridge links and a pair of roller shafts by a pair of support shafts which are each forwardly pressed by a compression spring, thereby closing the contacts. In the event if there is a difference in height between the contacting surfaces of the two stationary contacts, the bridge links are inclined to hold the roller contacts securely in the contact closing positions.