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. 23, 1980
Filed:
May. 31, 1978
Werner Sturm, Hagendorf, CH;
Von Roll AG, , CH;
Abstract
The disclosed sleeve is of the type including a resistance heating wire embedded in a thermoplastic sleeve material. A first sleeve member of insulating thermoplastic is molded with axially spaced integral annular receptacle wall members extending out from the outer surface and defining recesses. The walls have two diametrically opposite guide slots. Extending upwards from the center of each recess is a wire support stud. A resistance wire wound on the first sleeve between the wall members has its end sections passed through the slots and over the support stud, so that portions of the wire lie exposed against the side faces of the stud. A second sleeve member of insulating material is molded over the first sleeve so that the wire is embedded in the second sleeve but remains exposed within the recesses. The second sleeve material fills in the slots above the wire to thereby fix the wire in place in the slots. This permits a mating connector element to be inserted in the recess with its bore receiving the wire and wire support, so that electrical contact is made to the wire.