Process of manufacturing slide frames

Details Process of manufacturing slide frames Process of manufacturing slide frames

1985-04-30

1987-07-07

Wityshyn, Michael

Adhesive bonding and miscellaneous chemical manufacture

Methods

Surface bonding and/or assembly therefor

40154, 40158B, 156108, 156209, 156219, 15624418, 15624419, 156252, 156264, 156267, 156514, 264284, 264293, 264294, B29C 6508, G09F 112

Patent

active

046785256

ABSTRACT:
A process of manufacturing slide frames is disclosed, which are preferably adapted to be elastically expanded and are made from at least one extruded plastic sheet plastic web. Plastic web portions are adhesively joined or joined by ultrasonic welding to form a frame and picture gates and punching operations are performed to form picture gates in the frame and to form the external contour of the frame. A film bed which serves to receive a slide and is preferably peripherally closed is formed by embossing.

REFERENCES:
patent: 2390053 (1945-12-01), Bradford
patent: 2527765 (1950-10-01), Roehrl
patent: 2849752 (1958-09-01), Leary
patent: 3126621 (1964-03-01), Thieme et al.
patent: 3992243 (1976-11-01), Berggren et al.
patent: 4053340 (1977-10-01), Work
patent: 4250641 (1981-02-01), Thompson
patent: 4467541 (1984-08-01), Pettersson
patent: 4477991 (1984-10-01), Drevitch et al.

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