1974-02-21
1976-02-24
Mancene, Louis G.
A22C 700
Patent
active
039395308
ABSTRACT:
An apparatus for shaping successive molded articles from moldable material such as flat food patties from ground beef, ground fish and other moldable food materials. The apparatus has a mold opening in a movable mold for receiving a pressurized charge of the moldable material, an entrance to the mold, a vent from the mold opening spaced from the mold entrance for venting air displaced by the pressurized charge entering the mold opening, and a rigid valve between the mold entrance and vent movable into engagement with a valve seat before the pressurized charge reaches the vent to close the vent when the valve member is displaced by the advancing pressurized charge. The result is that the air and any other gases present are expelled from the mold opening automatically by the pressure of the entering charge and the vent is then automatically closed to prevent any substantial loss of the material through the vent. Then the moving of the mold as to an ejecting position automatically reopens the valve.
The disclosure also includes a combined mold and valved air vent means for use in an apparatus for pressure shaping articles from a moldable patty material in which the combination includes a mold plate having opposite surfaces and a mold opening extending through the plate with one of the surfaces comprising a defining surface for one side of an air vent directing air from the opening under the pressure of an entering pressurized charge of moldable material, a rigid valve within the opening at the peripheral edge thereof with the valve being mounted for movement relative to this edge to vent closing position when the valve is subjected to the pressurized entering material and a retainer for retaining the valve in the mold in a normally open vent position when the mold opening is substantially empty.
REFERENCES:
patent: 2643620 (1953-06-01), Miller
patent: 2814921 (1957-12-01), Beerend
patent: 3386129 (1968-06-01), Holly
patent: 3486186 (1969-12-01), Richards et al.
patent: 3869757 (1975-03-01), Holly
Hamilton James D.
Hollymatic Corporation
Mancene Louis G.
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