Patent 4317259 Issued on March 2, 1982. Estimated Expiration Date: June 19, 2000. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
425/556, With product ejector425/562, With means between charger and mold to cut off flow of fluent stock (e.g., needle valve, baffle, etc.)425/574With means to cause relative movement between mold and charger
A molding apparatus and method for molding patties of ground raw meat and the like that has a hopper for holding a supply of the meat, a mold having a patty shaped mold cavity, a ram equipped pressure chamber into which the meat is moved from the hopper and from which it is forced into a patty shaped mold cavity in the mold, means for moving the mold between a filling position for the cavity and an ejecting position for removal of the patty from the cavity, and the ram being reciprocable in the pressure chamber toward and away from the fill and exit openings thereby tending to create a vacuum in the pressure chamber on the movement away from the opening and venting the chamber to relieve this vacuum.