Package making – Gas filling and/or evacuating of receptacle and closing
Patent
1975-01-20
1976-03-23
McGehee, Travis S.
Package making
Gas filling and/or evacuating of receptacle and closing
53112B, 53258, B65B 3106
Patent
active
039451712
ABSTRACT:
A vacuum packaging apparatus comprising an elongate tubular loading horn with front and rear ends, an elongate drive member shiftable axially forwardly to an actuated position within the horn, an item engaginf pusher at the forward end of the member and shiftable rearwardly from a normal forward position forward of the member to an actuated position, the front of the pusher normally projecting forwardly from the horn when the member is in its actuated position and occurring within the horn when the member and pusher are in their actuated positions, an elongate vacuum nozzle within and extending longitudinally of the pusher when the pusher is in its normal position and projecting forwardly therefrom when the pusher is in its actuated position, an elongate supply of tubular packaging film shirred axially on and about the exterior of the horn with a lead portion extending forwardly from the horn and closed by a sealing means, an item conveyor extending forwardly from the horn to support items enveloped in the lead portion of the film urged forwardly from the horn by the pusher, and sealing and cutting means to seal the film at two longitudinally spaced locations between the item and the horn and to cut the film between the seals.
REFERENCES:
patent: 3624982 (1971-12-01), Marietta
patent: 3827210 (1974-08-01), Smalley et al.
Marietta, Jr. James W.
Tipper Maynard J. G.
Marietta, Jr. James W.
Maxwell Georges A.
McGehee Travis S.
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