Extraction of contents from envelopes

Details Extraction of contents from envelopes Extraction of contents from envelopes

1977-04-11

1978-09-05

McGehee, Travis S.

Package making

Means to open or erect receptacle

Means to open bag

53381R, B65B 4330

Patent

active

041109589

ABSTRACT:
An additional, sharper curvature is imparted to the curved side of a spread-open envelope at the contents extraction site. This "unsticks" contents which may have clung to that side.

REFERENCES:
patent: 2814488 (1957-11-01), Kipers
patent: 3430409 (1969-03-01), Manfredonia et al.
patent: 3466837 (1969-09-01), Sturges
patent: 3566578 (1971-03-01), Thorne et al.
patent: 3884010 (1975-05-01), Bardo et al.
patent: 3979884 (1976-09-01), Russell

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