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. 19, 2002
Filed:
Oct. 24, 2000
Applicant:
Inventors:
Tsuyoshi Narusawa, Fukushima-ken, JP;
Masaaki Kageyama, Fukushima-ken, JP;
Assignee:
Alps Electric Co., Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01H 1/370 ;
U.S. Cl.
CPC ...
H01H 1/370 ;
Abstract
A key switch includes an actuator for rotatably engaging the upper end of one of lever members, which constitute a cross-linked member, therewith and slidably engaging the upper end of the other lever member therewith. After the cross-linked member engaged with the actuator at its upper end is mounted on a membrane switch, the bottom of a key top is retained on the actuator by a simple means a as press fitting. This simplifies a molding die for the key top and facilitates an operation of attaching the key top.