Plastic article or earthenware shaping or treating: apparatus – Female mold and means to shape parison directly by internal... – Forming baffle – bottleneck – or handle
Patent
1984-08-17
1986-08-05
Woo, Jay H.
Plastic article or earthenware shaping or treating: apparatus
Female mold and means to shape parison directly by internal...
Forming baffle, bottleneck, or handle
264537, 425533, B29C 4906
Patent
active
046040447
ABSTRACT:
A process and multistation apparatus for injection blow molding a thermoplastic material to form a blow molded container having an integral injection molded handle is disclosed. The process and apparatus feature an injection mold which is closed to form an injection mold cavity with a contiguous injection mold handle cavity. A preform pin is inserted into the injection mold cavity through a preform carrier to form a preform recess into which hot thermoplastic is injected to form a hollow preform having a solid injection molded handle. After cooling the thermoplastic preform the preform pin is withdrawn and the molds are opened. The injection formed preform may be optionally heat treated prior to the preform being enclosed within a blow mold. The blow mold forms a cavity having the final desired container shape and a cavity into which the handle is enclosed. Blow air is introduced into the preform to inflate it to the shape of the blow mold cavity thereby forming a blow molded container having an injection molded handle attached thereto. A preform carrier may be used to carry the injection molded preform from the injection mold station to the blow mold station. The carrier attains attachment to the preform as the preform is formed in the injection mold.
REFERENCES:
patent: 3029471 (1962-04-01), Adams et al.
patent: 3944642 (1976-03-01), Uhlig
patent: 3983199 (1976-09-01), Uhlig
Heitbrink Timothy W.
Hoover Universal Inc.
Woo Jay H.
LandOfFree
Injection blow molding apparatus does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Injection blow molding apparatus, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Injection blow molding apparatus will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-966480