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:
Feb. 06, 1979
Filed:
Sep. 29, 1977
Applicant:
Inventor:
Lloyd M Guenther, Severna Park, MD (US);
Assignee:
Chevron Research Company, San Francisco, CA (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
B65H / ; B65H / ;
U.S. Cl.
CPC ...
156433 ; 156443 ; 156502 ; 156556 ; 156579 ;
Abstract
Instead of being butt-spliced, thermoplastic tapes used to form yarn used by carpet manufacturers are sealed along a longer bias of their off-centered, cross alignment, (providing greater strength but without additional bulk) by means of a heating wand and method of the present invention. The wand includes means for first untwisting the tapes over a short segment thereof and then placing them in relative cross-alignment positions relative to a transversely located heating element. The heating element is in intermittent circuit with an energy source.