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.

Date of Patent:
Dec. 03, 1985

Filed:

Jun. 15, 1984
Applicant:
Inventor:

Hiroshi Inaba, Kawasaki, JP;

Assignee:

Nitsuko Limited, Kawasaki, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01H / ;
U.S. Cl.
CPC ...
200340 ;
Abstract

A key switch device having a key being depressable to allow a movable contact to come into contact with a pair of fixed contacts. The key is elastically supported in an opening of a housing plate and is prevented from slipping out of the opening by engagement with the key and the housing plate. The housing plate has a plurality of guide grooves formed in the inner surface of the opening in parallel with a center axis of the opening. A plurality of guide projections are formed on the lower side of the key and are slidably fitted into the guide grooves, respectively. The key can be smoothly and straightly moved along the center axis of the opening by a force applied to any point on the upper surface of the key without being inclined from the center axis.


Find Patent Forward Citations

Inaba, Hiroshi. (1985). Key switch devices with key guide means (U.S. Patent No. 4556769). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4556769

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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