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. 29, 1994
Filed:
Aug. 17, 1993
Toshihisa Hirata, Furukawa, JP;
Alps Electric Co., Ltd., Tokyo, JP;
Abstract
A spring-return switch comprises: a case; a common contact embedded in the inner surface of one of the opposite side walls of the case; a transfer contact embedded in the inner surface of the other side wall opposite to the common contact; a slider supported for vertical movement within the case and integrally provided with an operating rod; a movable contact held by the slider and having a base portion held by the slider, a first contact arm in continuous contact with the common contact and a second contact arm to be brought into contact with or to be separated from the transfer contact; and a return spring biasing the slider upward so that the slider is pressed resiliently against the inner surface of the upper wall of the case. The operating rod is dislocated from the center of the slider toward the transfer contact so that most part of pressure applied to the operating rod to depress the slider is exerted on the second contact arm of the movable contact.