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:
Jun. 27, 2000
Filed:
Jul. 15, 1999
Ming-Yow Hong, Yung-Ho, TW;
Hon Hai Precision Ind. Co., Ltd, Taipei Hsien, TW;
Abstract
A computer keyboard pushbutton structure includes a base plate on which a pair of pivotally attached link members forming a collapsible cross configuration is supported. A key cap is supported on the link members and movable with the collapse of the cross configuration of the link members. A membrane circuit is positioned on and supported by the base plate. The membrane circuit includes an insulative film on which a contact switch and corresponding conductive traces are formed. The insulative film defines openings through which the link members extend to contact and thus be directly supported by the base plate. A rubber cap is supported on the membrane circuit and coupled to the key cap for being deformable by depression of the key cap whereby a projection of the rubber cap contacts and thus actuates the contact switch.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile