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.

Date of Patent:
Jul. 04, 1989

Filed:

Mar. 12, 1987
Applicant:
Inventor:

Michael S Smith, Saugerties, NY (US);

Assignee:

Other;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B41F / ; B41F / ;
U.S. Cl.
CPC ...
1011271 ; 1011284 ;
Abstract

A stencil manufacturing and printing process reduces printed image distortion by matching screen deflection in the photostencil preparation phase with stencil deflection in the printing phase. The usual squeegee is replaced by atmospheric pressure and screen/stencil deflection is induced by producing a vacuum through a specially constructed air distribution frame. Compressed air can be introduced through the same frame to rapidly release the stencil from the substrate when the printing is completed. A control unit incorporating a pressure sensor facilitates control of the printing process. The frame may have a 2-piece construction with the stencil/screen supported by a removable insert and the air distribution and pressure level sensing functions afforded by a master frame into which the insert fits.


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