Plastic and nonmetallic article shaping or treating: processes – Mechanical shaping or molding to form or reform shaped article – Shaping against forming surface
Patent
1988-02-01
1989-02-21
Thurlow, Jeffery
Plastic and nonmetallic article shaping or treating: processes
Mechanical shaping or molding to form or reform shaped article
Shaping against forming surface
264318, 264327, 26432816, 264342R, 264DIG71, 425547, B29C 3302, B29C 4540, B29C 4544
Patent
active
048063010
ABSTRACT:
A mold for forming a plastic cap and a method of removing a cap from such a mold. The mold includes female and male members which, together, form a mold cavity in which the cap is formed. The female member includes an upper assembly and a plurality of cams. The cams have radial protrusions engaging the male member to form annular recesses in the cap. The cap is removed from the mold by moving the upper assembly of the female member axially and the cams thereof radially away from the cap, and then removing the cap itself from the male member of the mold. Preferably the cap is shrunk onto the male member to develop a space between the cap and the female member of the mold prior to moving the female member away from the cap.
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American Safety Closure Corp.
Tentoni Leo B.
Thurlow Jeffery
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