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:
Jan. 20, 2004
Filed:
Nov. 29, 2001
Applicant:
Inventors:
Roy E. Moore, Jr., Killingworth, CT (US);
Daniel J. Swistak, Newmarket, NH (US);
Assignee:
Infiltrator Systems, Inc., Old Saybrook, CT (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B29D 2/300 ; B29C 4/966 ;
U.S. Cl.
CPC ...
B29D 2/300 ; B29C 4/966 ;
Abstract
A method for manufacturing a molded article comprises injecting a quantity of molding material sufficient for the preparation of the molded article into a cavity of a mold, injecting a first portion of fluid into the mold cavity, creating a gas channel within the molding material, and forming the molded article within the mold cavity. At least a portion of the first portion of fluid is exhausted through a gas port, a second portion of fluid is injected into the mold material, and the molded article is cooled within the mold cavity to a temperature beneath a softening point of the molding material.