Package making – Methods – With contents treating
Patent
1989-07-14
1990-09-18
Spruill, Robert L.
Package making
Methods
With contents treating
53410, 53450, 53453, 156292, B65B 904, B65B 3102, B65B 4700
Patent
active
049569627
ABSTRACT:
A resealable hermetically sealed package for food products has the product contained between two sheets of thermoplastic material which are sealed together by a permanent heat fused seal about the product except for one edge along which the sheets are adhesively glued together by an easily peeled resealable seal. The process for manufacturing the product forms the adhesive seal prior to the permanent seals in an area remote from that in which evacuation and the final seal occurs. Thus, the final sealing and evacuation of the package is performed in the absence of adhesive so that no adhesive can be drawn into evacuation slots so as to economically produce the product.
REFERENCES:
patent: 3673760 (1972-07-01), Canamero et al.
patent: 4365716 (1982-12-01), Watt
patent: 4415087 (1983-11-01), Clayton et al.
patent: 4502599 (1985-03-01), Perecman
patent: 4572377 (1986-02-01), Beckett
patent: 4674634 (1987-06-01), Wilson
patent: 4819409 (1989-04-01), Mahaffy et al.
Bryan Food, Inc.
Johnson Linda B.
Ruderman Alan
Spruill Robert L.
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