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. 28, 1976
Filed:
Jan. 20, 1975
William J Maurino, Racine, WI (US);
Raymond M Putzer, Racine, WI (US);
Precision Flexmold, Inc., Racine, WI (US);
Abstract
Molding apparatus for molding articles without a seam or parting line even though articles may have severe backdraft portions. The apparatus includes a one-piece flexible mold which is deformable by the application of a fluid pressure differential to thereby release the finished article from the mold. The mold has a self-supporting, radially extending annular flange which forms a seal with a vacuum pot when the mold is set in the pot and the flange has a downwardly extending annular projection or lip which fits freely over the outside diameter of the side wall of the pot. The downwardly extending projection is of sufficient inside diameter to allow the flange to be easily set upon or removed from the vacuum pot and the flange also has sufficiently close tolerances with respect to the outside diameter of the pot as to accurately align and center the mold in the pot. One embodiment of the invention also has a restraining ring member imbedded in the flange, thereby providing means to maintain the shape of the periphery of the flange to prevent it from being completely drawn into the mold when vacuum is applied.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile