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. 24, 1985
Filed:
May. 23, 1984
Johannis M Deurloo, Emmen, NL;
N. K. F. Groep B.V., , NL;
Abstract
An electric cord set having a plurality of stranded conductors and a connection plug with an identifying connection element, such as a grounding pin, the identified connection element being connected to a conductor identified by having a higher magnetic permeability than the other conductors. Preferably, the ground wire is made of wire strands similar to the other conductors, but contains 1 to 3 auxiliary steel wire strands. In a method and device for manufacturing such a cord set, the cord is arranged next to a magnetic sensing element and rotated about the cord axis automatically while the permeability is sensed. The cord is then fixed in a position of highest or lowest detected permeability, so as to identify the location of the unique conductor, and the plug is then connected.