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:
Jul. 07, 1987
Filed:
Apr. 17, 1985
Haruyuki Koizumi, Kyoto, JP;
Koichi Omae, Kyoto, JP;
Omron Tateisi Electronics Co., Kyoto, JP;
Abstract
A keyboard switch is provided which comprises a substrate on the upper surface of which a flexible switch is disposed that has paired fixed and movable contacts and includes a flexible sheet, guide posts passing through and secured to the substrate at mutually opposed positions on either side of the contacts, a key plunger fitted vertically movably in the guide posts, and a coil spring interposed between the key plunger and the substrate. The coil spring functions so that it pushes the flexible switch when compressed to cause the paired contacts to come into contact with each other and, when uncompressed, returns the key plunger to the initial position thereby to separate the paired contacts.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile