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:
Jul. 23, 2019
Filed:
Jun. 02, 2015
Watlow Electric Manufacturing Company, St. Louis, MO (US);
Elias Russegger, Golling, AT;
Gerhard Schefbanker, Golling, AT;
Gernot Antosch, Golling, AT;
Wolfgang Poeschl, Golling, AT;
Martin Wallinger, Golling, AT;
Kevin Ptasienski, O'Fallon, MO (US);
Matt Kenchel, Wentzville, MO (US);
Kenneth Fennewald, Maryland Heights, MO (US);
Allen Boldt, Kirkwood, MO (US);
Watlow Electric Manufacturing Company, St. Louis, MO (US);
Abstract
A method of forming a layered heater assembly includes: forming a plurality of layers onto a substrate, the plurality of layers including a resistive element layer; forming electrical terminations in contact with the resistive element layer; securing a protective cover over the layers using a laser welding process, wherein edges of the protective cover are welded circumferentially around raised end portions of the substrate and welded longitudinally along a slotted portion of the substrate; securing a pair of lead wires to the electrical terminations; and securing a lead cap assembly around the pair of lead wires and to the protective cover using a laser welding process.