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. 05, 1982
Filed:
Jul. 19, 1979
Applicant:
Inventor:
Donald G Sauer, Harwinton, CT (US);
Assignee:
National Can Corporation, Chicago, IL (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
B29C / ;
U.S. Cl.
CPC ...
264511 ; 264513 ; 264538 ; 425523 ; 425533 ;
Abstract
A process for forming a hollow multilayered thermoplastic article utilizing a liner and a core rod formed at least in part of a porous metal and having a blow slot. A vacuum is applied to the liner through the porous metal part of the core rod and optionally the blow slot and blowing pressure is applied through the blow slot.