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. 20, 1988
Filed:
Aug. 24, 1987
Applicant:
Inventors:
Assignee:
I F M Electronic GmbH, Essen, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H05K / ;
U.S. Cl.
CPC ...
361424 ; 174 / ; 361398 ;
Abstract
A proximity switch or contactless switch circuit comprises within a casing a flexible insulating carrier provided along a component side with a multiplicity of electronic components connected by conductive strips to form the contactless or proximity switch circuit. An extension of the carrier or the opposite side of the carrier are provided with continuous conductive coatings so that when the carrier is folded or rolled within the casing, a portion of the carrier strip provided with the coating or layer forms an additional shield.