Static molds – Container-type molding device – Plural article forming mold – or molds with community feature
Patent
1979-01-12
1980-09-16
Lieberman, Paul
Static molds
Container-type molding device
Plural article forming mold, or molds with community feature
249126, 249127, 249141, 249154, F25C 124
Patent
active
042225477
ABSTRACT:
An ice tray having specially shaped cavities for allowing individual ice pieces to be removed on a one-at-a-time basis in which each individual cavity has a uniformly curved bottom wall of part-circular configuration preferably part-cylindrical and a pair of generally concave opposed side walls of generally part-conical configuration flanking said bottom wall whose central apices provide a pivot axis about which the ice piece rotates when pressure is applied to the end of the ice piece to slide same along the curved bottomwall for removal from the cavity, the upper sheet portion which joins each individual cavity together being resiliently twistable to loosen all of the ice pieces simultaneously, if desired, and legs on the underside may be provided with notches for engaging portions on the upper surface of another tray to facilitate compact tray stacking, one upon another, without tray slippage or interference with ice formation.
REFERENCES:
patent: 1889481 (1932-11-01), Kennedy
patent: 2269642 (1942-01-01), Zerk
patent: 2481525 (1949-09-01), Mott
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patent: 3122898 (1964-03-01), Kniffin
patent: 3214128 (1965-10-01), Beck et al.
patent: 3317177 (1967-05-01), Brand
patent: 4148457 (1979-04-01), Gurbin
Koeckert Arthur H.
Lieberman Paul
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