Molded article knock-out method

Details Molded article knock-out method Molded article knock-out method

1982-03-22

1983-05-31

Woo, Jay H.

Plastic and nonmetallic article shaping or treating: processes

Mechanical shaping or molding to form or reform shaped article

Shaping against forming surface

2643288, 425537, B28B 710

Patent

active

043860478

ABSTRACT:
A knock-out method and apparatus for use in connection with the molding of articles, such as, for example, oil seals fabricated from elastomeric material bonded to a rigid casing, including a plurality of plunger members to apply successive sequential forces to selected sets of molded oil seals for removal thereof from frictional engagement within the molding machine and permit subsequent retrieval from the molding machine. The plurality of plunger members move upward into contact with oil seals retained in the molding center plate to apply sequential forces to the selected sets of the molded articles to position the seals for ready access on top of the plate.

REFERENCES:
patent: 2055742 (1936-09-01), Burke
patent: 3718415 (1973-02-01), De Felice
patent: 3798299 (1974-03-01), Gumm et al.
patent: 3825643 (1974-07-01), Hillier et al.
patent: 3893644 (1975-07-01), Drazick
patent: 3914086 (1975-10-01), Hujik
patent: 3950119 (1976-04-01), Reichenbach
patent: 4050666 (1977-09-01), Tichelt

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