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:
Aug. 17, 1982
Filed:
Feb. 19, 1981
Applicant:
Inventor:
Leonard Latasiewicz, Hoffman Estates, IL (US);
Assignee:
Motorola Inc., Schaumburg, IL (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01H / ;
U.S. Cl.
CPC ...
200 / ; 2001 / ;
Abstract
A resilient spacer for use in a membrane switch assembly is formed of an open-cell, non-reticulated foam felt layer, allowing air from the space between the upper and lower switch contacts to move into the foam material surrounding the contacts when a switch contact is made. The switch contacts remain protected from atmospheric contamination regardless of whether the assembly is edge sealed or not.