Pin register vacuum system

Details Pin register vacuum system Pin register vacuum system

1987-01-02

1988-12-13

Wintercorn, Richard A.

Photocopying

Contact printing

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

354275, G03B 2720

Patent

active

047914599

ABSTRACT:
Pin register vacuum systems. A vacuum holder for holding film in a camera. Two pins are located near one end of the holder to locate film having corresponding holes. A first spring is mounted on one side of the holder. A second spring is mounted on one end of the holder. Vacuum is applied to hold the film flat in the holder. A vacuum register glass carrier for the enlarger and a vacuum register platen for enlarging are provided.

REFERENCES:
patent: 2173168 (1939-09-01), Hughes
patent: 3146690 (1964-09-01), Hoffman
patent: 3221596 (1965-12-01), Hoffman
patent: 3237543 (1966-03-01), Hoffman
patent: 3551048 (1970-12-01), Hoffman
patent: 3625611 (1971-12-01), Orr et al.
patent: 3771870 (1973-11-01), Taylor
patent: 4433910 (1984-02-01), Tarsia

Affiliated with

Also associated with

Rating

Pin register vacuum system does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Pin register vacuum system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Pin register vacuum system will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2199388