Vacuum blanket for pin registration

Details Vacuum blanket for pin registration Vacuum blanket for pin registration

1993-10-28

1995-02-28

Wintercorn, Richard A.

Photocopying

Contact printing

Fluid pressure retention of carrier and receiver in exposure...

355 99, G03B 2720

Patent

active

053942205

ABSTRACT:
A vacuum blanket apparatus for maintaining precise registration between an image forming sheet and a light sensitive sheet when subjected to controlled exposure to light passing through a glass panel includes a vacuum blanket having an upper cover of flexible sheet material adapted to contact the light sensitive sheet for biasing the same and said image sheet toward a planar face of the glass panel when the panel is locked in position parallel to the vacuum blanket. The blanket cover is formed with at least one elongated slot for receiving one or more registration pins for registering the image forming and light sensitive sheets. At least one deformable resilient pressure element in the slot is deformable to bias the sheets toward the glass panel.

REFERENCES:
patent: 4082454 (1978-04-01), Putnam
patent: 4935773 (1990-06-01), Meacham
patent: 4967230 (1990-10-01), Meacham
patent: 4977683 (1990-12-01), Harder
patent: 5017960 (1991-05-01), Tuulse
patent: 5072257 (1991-12-01), Stoesser et al.
patent: 5300973 (1994-04-01), Ternes et al.

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