Photocopying – Contact printing – Fluid pressure retention of carrier and receiver in exposure...
Patent
1994-04-22
1996-01-02
Gellner, Michael L.
Photocopying
Contact printing
Fluid pressure retention of carrier and receiver in exposure...
355 73, 355 76, G03B 2720
Patent
active
054813336
ABSTRACT:
A vacuum frame apparatus including a latching system with means to assist in repressurizing the vacuumized area of the frame includes a vacuum blanket support frame pivotally mounted along one side of a glass panel for holding workpieces in precise registration against the glass panel for making copies includes a hollow rectangular frame around a flexible vacuum blanket. The frame members have a plurality of small vacuum ports on the underside inside a peripheral bead seal for evacuating the space between the flexible vacuum blanket and the glass panel when a vacuum is pulled on the interior of the hollow peripheral frame by a vacuum pump. Large size frontal ports are provided on the front side member of the frame to cooperate with batch mechanisms for clamping and holding the frame tightly against the glass panel during copy making. The latch members serve a dual function of latching and holding the frame in a closed position for exposure of material and automatically closing and opening the frontal ports, respectively, when the latch mechanisms are operated to speed up breaking of the vacuum and opening of the frame at the end of a copy making cycle in readiness for the next operation.
REFERENCES:
patent: 1151477 (1915-08-01), Knudsen
patent: 1702232 (1929-02-01), Koppe
patent: 3119318 (1964-01-01), Forester et al.
patent: 3147683 (1964-09-01), Hulen
patent: 3266402 (1966-08-01), Benson
patent: 3399584 (1968-09-01), Lewicki
patent: 3463587 (1969-08-01), Oltra et al.
patent: 3507593 (1970-04-01), McTeague
patent: 3627416 (1971-12-01), Benson
patent: 3738742 (1973-06-01), Fukushima
patent: 4028166 (1977-06-01), Leonhart
patent: 4423851 (1984-01-01), Heitmann
patent: 4484813 (1984-11-01), Maher et al.
patent: 4536085 (1985-08-01), Hliboki et al.
patent: 4551016 (1985-11-01), Maher et al.
patent: 4575233 (1986-03-01), Copeland et al.
patent: 4619526 (1986-10-01), Hougaard
patent: 4664511 (1987-05-01), Carlson et al.
patent: 4669870 (1987-06-01), Fosh
patent: 4704028 (1987-11-01), Richards, Sr.
patent: 4754309 (1988-06-01), Lesko
patent: 4935773 (1990-06-01), Meacham
patent: 4967230 (1990-10-01), Meacham
patent: 4984017 (1991-01-01), Nishida et al.
patent: 4989035 (1991-01-01), Leonhart
patent: 4996560 (1991-02-01), Nanri et al.
patent: 5051777 (1991-09-01), Leonhart
patent: 5072257 (1991-12-01), Stoesser et al.
patent: 5121161 (1992-06-01), Dondich
patent: 5298940 (1994-03-01), Ohlig
Gellner Michael L.
Malley D. P.
nuArc Company, Inc.
LandOfFree
Latchable vacuum blanket frame assembly does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Latchable vacuum blanket frame assembly, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Latchable vacuum blanket frame assembly will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-239204