Injection blow molding apparatus
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United States of America Patent
Stats
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Aug 5, 1986
Issued Date -
N/A
app pub date -
Aug 17, 1984
filing date -
Aug 30, 1979
priority date (Note) -
Expired
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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 After cooling the thermoplastic preform the preform pin is withdrawn and the molds are opened.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.
First Claim
Family
- 15 United States
- 10 France
- 8 Japan
- 7 China
- 5 Korea
- 2 Other
Patent Owner(s)
- HOOVER UNIVERSAL, INC.
International Classification(s)
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
---|---|---|---|
Hafele, Robert X | Baton Rouge, LA | 10 | 209 |
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Maintenance Fees
Fee | Large entity fee | small entity fee | micro entity fee | due date |
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Fee | Large entity fee | small entity fee | micro entity fee |
---|---|---|---|
Surcharge after expiration - Late payment is unavoidable | $700.00 | $350.00 | $175.00 |
Surcharge after expiration - Late payment is unintentional | $1,640.00 | $820.00 | $410.00 |
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