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:
Jun. 05, 1984
Filed:
Jan. 13, 1982
Applicant:
Inventors:
Joseph R Harder, Bartlesville, OK (US);
James E Keesling, Bartlesville, OK (US);
Assignee:
Phillips Petroleum Company, Bartlesville, OK (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B29D / ;
U.S. Cl.
CPC ...
264555 ; 264237 ; 264248 ; 264557 ; 264571 ; 425325 ; 425388 ;
Abstract
A method and apparatus for continuously cooling a thermoplastic shape having two open sides in which the thermoplastic shape, in its at least partially molten state, is extruded and/or drawn along an elongated form having a contour complimentary to the contour of one side of the two open sides and, simultaneously with moving the thermoplastic shape, at least partially cooling the thermoplastic shape by cooling the form with a liquid cooling medium and drawing a vacuum, on the previously mentioned one side of the two open sides of the thermoplastic shape, through the form.