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:
Sep. 22, 1998
Filed:
Jun. 30, 1997
Applicant:
Inventors:
Karl-Heinz Muller, Auerbach, DE;
Khalleel M Chowdhree, Watford, GB;
Assignee:
Cherry Mikroschalter GmbH, Auerbach, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B41J / ;
U.S. Cl.
CPC ...
400496 ; 400472 ;
Abstract
In a splash-water protected keyboard having a contact foil arranged in a housing and a rubber mat with switch domes disposed over the contact foil and keys with contact stems disposed in the housing over the switch domes for actuating the contacts in the contact foil, the rubber mat has upwardly extending circumferential projections such that the rubber mat forms a trough structure which is provided at least at one edge with discharge spouts extending into openings in the housing bottom plate for discharging any liquid collected in the trough structure.