Machine fillable envelope

Details Machine fillable envelope Machine fillable envelope

1974-04-18

1977-01-25

Garbe, Stephen P.

Envelopes, wrappers, and paperboard boxes

Envelope

Closures

150 7, 206260, B65D 2720

Patent

active

040047288

ABSTRACT:
An improved envelope suitable for interleaving with the pages of a magazine and to be sewed or otherwise bound to the spine of the magazine. The envelope has a front and a back and an entrance for receiving sheet or other material. The back has a lip projecting outwardly from the entrance and a relatively large flap hingedly connected to the outer margin of the lip. When the envelope is moved through a conventional envelope stuffing machine, the lip is held clamped against upward movement as the flap is beneath and contiguous to the back, thereby permitting a suction or other force exerted on the front to lift the latter and thereby open the entrance to facilitate insertion of the material into the envelope.

REFERENCES:
patent: 2149030 (1939-02-01), Moore
patent: 2166224 (1939-07-01), Shaw
patent: 2975956 (1961-03-01), Robinson et al.
patent: 3460744 (1969-08-01), Turkenkopf
patent: 3560025 (1971-02-01), Ostrander

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