The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 17, 1992
Filed:
May. 21, 1990
Applicant:
Inventors:
Indra R Baxi, Solon, OH (US);
Thomas W Johnson, Middlefield, OH (US);
Assignee:
Nitrojection Corporation, Middlefield, OH (US);
Primary Examiner:
Int. Cl.
CPC ...
B29C / ; B29C / ; B29D / ;
U.S. Cl.
CPC ...
264572 ; 55 97 ; 2643288 ; 26432813 ; 26432814 ; 425812 ;
Abstract
A process for producing an injection molded product includes the step of introducing an amount of a molten thermoplastic sufficient for the preparation of the injection molded product into a mold cavity. A quantity of heated gas is introduced into the mold cavity, the molten thermoplastic in the mold cavity thereby forming a gas cavity in the molten thermoplastic. The heated gas is then vented from the gas cavity and a cooling gas is introduced into the gas cavity. The injection molded product is cooled and then the cooling gas is vented from the gas cavity.