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:
Aug. 09, 1977
Filed:
Aug. 26, 1975
Applicant:
Inventors:
James K Hughes, Bartlesville, OK (US);
Wayne K Erickson, Greenville, SC (US);
Assignee:
Phillips Petroleum Company, Bartlesville, OK (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
D02C / ;
U.S. Cl.
CPC ...
28248 ; 28265 ;
Abstract
Synthetic thermoplastic fibers are crimped in the presence of steam in a crimping zone wherein there are present a defined first region of low but increasing steam pressure, a defined second region of substantially constant, relatively high steam pressure, and a defined third region of decreasing steam pressure. Superior crimped products are obtained having a more permanent bulkiness which resists deterioration during further processing and subsequent use.