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:
Dec. 16, 1980
Filed:
Dec. 06, 1979
Applicant:
Inventor:
Nareshwar Swaroop, Mount Vernon, OH (US);
Assignee:
The Continental Group, Inc., New York, NY (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B29F / ;
U.S. Cl.
CPC ...
425144 ; 249 64 ; 249 78 ; 249 81 ; 249110 ;
Abstract
This relates to an injection mold assembly wherein there is a plurality of cavities which are spaced from a center of the mold assembly and wherein each cavity has therein a core so that a thin wall article, such as a preform for a blow molded bottle, may be accurately formed by injection molding. Previously experienced differential in temperature and thus expansion differentials causing core-cavity misalignment are overcome in accordance with this invention by supplying the core retainer plate, which is normally cooler than the cavity retainer plate, with a heater for elevating the temperature thereof as required.