Plastic article or earthenware shaping or treating: apparatus – Shaping surface including means to release or remove product... – Removal-miscellaneous
Patent
1996-12-09
1998-09-08
Woo, Jay H.
Plastic article or earthenware shaping or treating: apparatus
Shaping surface including means to release or remove product...
Removal-miscellaneous
249 67, 264334, 425185, 425556, B29C 4540
Patent
active
058042261
ABSTRACT:
A bushing for retaining a knock out pin and a removable knock out pin assembly utilizing that bushing. The bushing has a pin holding portion composed of upstanding flexible arms engagable with a knock out pin, each of the arms having a lug for engaging the knock out pin. A retention ring is formed on the bottom of the bushing, the ring having an outwardly-extending flange for engaging an aperture in a plastic mold. The knock out pin has opposite grooves for accommodating the lugs of the bushing, the pin being removable by rotating the pin 90.degree. to disengage the lugs from the grooves so that the pin can be axially removed.
REFERENCES:
patent: 3718415 (1973-02-01), Felice
patent: 3914086 (1975-10-01), Hujik
patent: 3930778 (1976-01-01), Roncelli
patent: 4050666 (1977-09-01), Van Tichelt
patent: 4929170 (1990-05-01), Boskovic
patent: 5112207 (1992-05-01), Pinsonneault
patent: 5227178 (1993-07-01), Rieker
patent: 5368468 (1994-11-01), Boskovic
patent: 5451156 (1995-09-01), Roncelli et al.
Schwartz Iurie
Woo Jay H.
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