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. 07, 1999
Filed:
Nov. 04, 1997
William E Coleman, Colorado Springs, CO (US);
Matthew R Richter, Colorado Springs, CO (US);
Photo Stencil, Inc., Colorado Springs, CO (US);
Abstract
A squeegee blade comprising a base metal core coated with titanium nitride. Preferably, the blade also comprises a nickel coating between the base metal and the titanium nitride. The core blade is provided with an edge with a desired radius of curvature by chemical milling, and then the whole blade is chemically polished or electropolished and optionally nickel plated to produce a very smooth finish. The blade is then coated with titanium nitride to produce a blade with an extremely hard, low-friction surface. A squeegee incorporating the blade can be used, for example, for screen printing solder paste, conductive epoxy, or the like onto printed circuit boards.