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. 07, 1985
Filed:
Jan. 24, 1983
Applicant:
Inventor:
William P Harper, Danielson, CT (US);
Assignee:
Rogers Corporation, Rogers, CT (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01H / ;
U.S. Cl.
CPC ...
200 / ; 2001 / ; 200340 ;
Abstract
A full travel membrane keyboard is presented having membrane switches with an elastomeric layer between the membrane switching array and upper mechanical elements of the key, the elastomeric layer serving to evenly distribute actuation forces, contribute to the sensation of pretravel and provide the sensation of overtravel. The assembly results in reduced cost and reduced number of components.