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:
Dec. 24, 1991
Filed:
Aug. 30, 1990
Dieter Klatt, Wulfrath, DE;
Sami Karacora, Wuppertal, DE;
Stocko Metallwarenfabriken Henkels und Sohn GmbH & Co., Wuppertal, DE;
Abstract
A manually actuatable electric pushbutton switch that automatically returns to the starting position after actuation, especially such a switch for the keyboard of an electronic device, for example a typewriter, is provided. The switch has a plastic housing in which is disposed a plate spring that is in engagement with an actuating button. The plate spring has a region that during shifting of the actuating button and flexing of the plate spring abruptly jumps to a different position when the electrical contact position is achieved, so that the triggering function is indicated both physically as well as audibly to the user. The region of the plate spring that abruptly reverses is preferably formed by slots, between which the abruptly reversing plate spring strip is defined.