Package making – Methods – Forming or partial forming a receptacle and subsequent filling
Patent
1987-06-26
1989-06-06
Coan, James F.
Package making
Methods
Forming or partial forming a receptacle and subsequent filling
53456, 53559, 426107, H05B 680, B65B 5506
Patent
active
048359424
ABSTRACT:
A vacuum packed, frozen, cooked or non-cooked shrimp pack, in which the shrimp-containing plastic pouch has a center thickness less than its outer, surrounding periphery, with more shrimp contained one above the other at the peripheral edges in comparison to a lesser number at the center in the pack. This produces a relatively even heating or cooking of the shrimp when the frozen pack is placed in a micro-wave for defrosting or cooking. Such a pack can be produced by providing an upwardly curved, rigid form underneath the bottom film layer of the pack in the "form, fill and seal" machine during commercial packing of the product in the sealing station and, if so desired, in the forming and fill stations. The rigid form can be provided by a curvi-linear section (FIG. 4) or a hemispherical section (FIGS. 5A & 5B) which presents a convexly curved surface on its upper side, which causes the bottom layer of the flexible film to be bowed up at its center area and flared downwardly at at least two of its opposed peripheral areas. This causes the shrimp or other highly sensitive food produce to be pushed out from the center during the sealing of the tightly fitting plastic pouch.
REFERENCES:
patent: 3343332 (1967-09-01), Mahaffy et al.
patent: 3347011 (1967-10-01), Lovas et al.
patent: 3526186 (1970-09-01), Cornelius
patent: 4416906 (1983-11-01), Watkins
patent: 4684025 (1987-08-01), Copland et al.
patent: 4704510 (1987-11-01), Matsui
Coan James F.
Pugh C. Emmett
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