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. 11, 1978
Filed:
Sep. 30, 1976
John E Lyons, Levittown, NY (US);
Eutectic Corporation, Flushing, NY (US);
Abstract
The apparatus of the invention employs a gas torch which has the feature of selective addition of metal powder to the gas flow. In use, the torch is caused to make a continuous succession of traverses of a workpiece region for preheating purposes and then, without interrupting the continuous operation of either the torch or the traversing cycles, a controlled flow of metal powder is caused to enter the torch flow, enabling the bonding and progressive building of a metal coat to desired thickness. In the embodiments described, first and second different metal powders are thus successively coated to the substrate without interrupting the continuous operation. Different embodiments are described in the particular context of applying uniform circumferential coatings to a cylindrical workpiece such as a shaft.