Printing – Stenciling – Stencils
Patent
1987-03-12
1989-07-04
Fisher, J. Reed
Printing
Stenciling
Stencils
1011284, B41F 1520, B41F 1534
Patent
active
048439614
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.
REFERENCES:
patent: 2239619 (1941-04-01), Murgatroyd et al.
patent: 3150583 (1964-09-01), Reed III et al.
patent: 3172358 (1965-03-01), Weiss
patent: 3221648 (1965-12-01), Weiss
patent: 3221649 (1965-12-01), Weiss
patent: 3372638 (1968-03-01), Tripp
patent: 3463587 (1969-08-01), Oltra et al.
patent: 3871293 (1975-03-01), Valiela
patent: 3964385 (1976-06-01), Knight
patent: 4083301 (1978-04-01), Black
patent: 4388862 (1983-06-01), Thomas, Jr.
patent: 4484813 (1984-11-01), Maher
Screen Printing, Feb., 1984, "Stencil Trouble Shooting chart".
LandOfFree
Stencil printing with vacuum support frame does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Stencil printing with vacuum support frame, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Stencil printing with vacuum support frame will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-844055