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. 15, 1989
Filed:
Oct. 25, 1988
Norman G Gratke, Elm Grove, WI (US);
W. H. Brady Co., Milwaukee, WI (US);
Abstract
A capacitance membrane switchcore (12,12a, 12b, 12c, 12c') including a first circuit (16, 16'), a second circuit (17,17') and a third circuit (49,49') in which intertrace coupling capacitors (58,58') couple conductive traces (40-47,135) of the second circuit (17,17') to conductive traces (51,51') of the third circuit (49,49'). Also disclosed is a capacitance membrane switchcore (12) including a first circuit (16) having at least one trace (65) with a first branch (65a) along a first surface (18a ) of a dielectric layer (18), a second branch (65b) along a second surface (18b) of the dielectric layer (18), an intratrace coupling capacitor (66,67) coupling the first branch (65a) to the second branch (65b), a third branch (65c) along the first surface (18a) of the dielectric layer (18), and an intratrace coupling capacitor (68,69) coupling the second branch (65b) to the third branch (65c).