Device on pressing piston

Details Device on pressing piston Device on pressing piston

1975-03-07

1977-09-13

Spicer, Jr., Robert L.

Plastic article or earthenware shaping or treating: apparatus

Tamp rod, plunger or male shaping member

425803, 100245, 100DIG5, B29C 100

Patent

active

040478726

ABSTRACT:
A device for compressing a wax-type material comprising a piston disposed within a chamber wherein channels are provided along the lateral surface of the piston for venting gases during the compressing operation.

REFERENCES:
patent: 1312189 (1919-08-01), Locke
patent: 2783499 (1957-03-01), Billen
patent: 2987989 (1961-06-01), Freeman
patent: 3211193 (1965-10-01), Anderson

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