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:
Apr. 20, 1976
Filed:
Jul. 02, 1974
Applicant:
Inventor:
Peter John Lovell, Kingston, CA;
Assignee:
Du Pont of Canada, Ltd., Montreal, CA;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B29F / ;
U.S. Cl.
CPC ...
249107 ; 425248 ; 425D / ;
Abstract
A balanced runner system for injection moulding apparatus is disclosed. The runner system has an inlet, a plurality of runners and five gates. One of the gates is centrally located, the remaining gates being symmetrically spaced about the centrally located gate. The runners are such that the runner system is capable of supplying molten polymer to each gate at substantially the same rate. The runner system may be used to obtain a more uniform flow of molten polymer to a mould.