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.

Date of Patent:
Dec. 21, 1976

Filed:

Apr. 28, 1975
Applicant:
Inventor:

Raymond M Putzer, Racine, WI (US);

Assignee:

Precision Flexmold, Inc., Racine, WI (US);

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B28B / ; B28B / ;
U.S. Cl.
CPC ...
249117 ; 249127 ; 264313 ; 264334 ; 425440 ; 425D / ;
Abstract

Molding apparatus for molding articles which are free of seams and parting lines even though the articles may have severe backdraft portions. The apparatus includes a one-piece distensible flexible mold of relatively thick and self-supporting wall construction which is deformable by fluid pressure in order to release the molded article. The flexible walls of the mold include internal slits extending from the mold cavity and partially through the walls for facilitating increased expansion of the mold. The ends of the slits include transversely extending slits in order to prevent tearing of the mold wall at the end of the slit and to further facilitate expansion of the mold.


Find Patent Forward Citations

Putzer, Raymond. (1976). Flexible mold having internal seams (U.S. Patent No. 3998422). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/3998422

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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