Apparatus for applying a protective film on one face of a series

Details Apparatus for applying a protective film on one face of a series Apparatus for applying a protective film on one face of a series

1989-02-02

1990-09-25

Ball, Michael W.

Adhesive bonding and miscellaneous chemical manufacture

Surface bonding means and/or assembly means therefor

With cutting, punching, piercing, severing, or tearing

156152, 156267, 156514, B32B 3100

Patent

active

049591185

ABSTRACT:
A roll of composite tape composed of an adhesive tape and a strippable backing tape is paid out, and the adhesive tape and the strippable tape are separated. A circular hole of predetermined diameter is punched through the strippable tape, and the strippable tape and the adhesive tape are brought back together again such that a circular portion of the adhesive face of the adhesive tape remains exposed through the circular hole punched in the strippable tape. The exposed portion of the adhesive face of the adhesive tape is applied against a face of a lens placed on a support by displacing at least one of the support and a buffer toward each other. A cutting device is used to cut the adhesive tape around the peripheral edges of the lens, and the lens is removed together with its cut-out portion of adhesive tape. The remaining portion of the adhesive tape and the punched strippable tape is also removed, and the above operations are repeated for each lens in a series of lenses.

REFERENCES:
patent: 2608503 (1952-08-01), Meyer
patent: 3445981 (1969-06-01), Hori
patent: 4242162 (1980-12-01), Ronning et al.
patent: 4333781 (1982-06-01), Meulenberg
patent: 4759818 (1988-07-01), Hiroshi

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