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:
Mar. 21, 1989
Filed:
Jun. 23, 1987
Richard P Welty, Boulder, CO (US);
Vac-Tec Systems, Inc., Boulder, CO (US);
Abstract
Apparatus for depositing a coating on at least one substrate where the coating includes at least two component materials where the relative percentages of the component materials with respect to each other varies through the thickness of the coating. The apparatus includes at least two deposition sources for respectively providing the two component materials, at least one mask having at least one aperture, the mask being disposed between at least one of said two deposition sources and the substrate, and a motion effecting mechanism for effecting relative motion between the substrate and the deposition sources to thus effect a predetermined variation of the relative percentages of the component materials as a function of at least the shape of the aperture in the mask.