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:
Sep. 15, 2009
Filed:
Jun. 24, 2005
Paul Philip Brown, Ramona, CA (US);
Jens Ole Sorensen, Rancho Santa Fe, CA (US);
Paul Philip Brown, Ramona, CA (US);
Jens Ole Sorensen, Rancho Santa Fe, CA (US);
Sorensen Research and Development Trust, San Diego, CA (US);
Abstract
In a method of injection molding a plastic product having a base wall and a sidewall (), wherein plastic injected into a base-wall section of the mold cavity is conducted through a flow guide () in the base-wall section and thence into a sidewall section () of the mold cavity, a portion of a base-wall section flow guide is shaped by partially opposing a row of successive recesses () in a first mold part with a series of successive recesses () in a second mold part, with the recesses in the first mold part being so staggered with respect to the recesses in the second mold part as to provide a chain of overlapping recesses that form a sequence of variable-opening throttles () having openings that can vary whenever the alignment between the first and second mold parts varies. The recesses () in the second mold part are more than the recesses () in the first mold part.