Plastic article or earthenware shaping or treating: apparatus – Shaping surface including means to release or remove product... – By means releasing article from interiorly placed shaping...
Patent
1997-12-30
2000-02-22
Pyon, Harold
Plastic article or earthenware shaping or treating: apparatus
Shaping surface including means to release or remove product...
By means releasing article from interiorly placed shaping...
425388, 425440, 425443, 425DIG58, 425DIG5, B29C 3344
Patent
active
060273275
ABSTRACT:
An apparatus and method for forming thermoplastic containers having a male locking member. The apparatus includes a cavity defining a shape of the container, a stripper movable in a longitudinal direction relative to said cavity, and a retractable lock adjacent to an edge of the cavity. The retractable lock is movable in a transverse direction relative to the cavity between a retracted position and an unretracted position and movable in a longitudinal direction between a first position and a second position. The containers are formed through a process in which the apparatus is sequentially placed in a ready mode, lift mode, disengage mode, and back to the ready mode. In the ready mode, the retractable lock is placed in the unretracted position and first position in order to receive a sheet of plastic material and form a locking member thereon. In the lift mode, the retractable lock is moved in a longitudinal direction from the first position to the second position in order to lift the container from the cavity. In the disengage mode, the retractable lock is moved in a transverse direction from the unretracted position to the retracted position in order to disengage itself from the locking member.
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Pyon Harold
Tenneco Packaging Inc.
Wentink Mark A.
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