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:
Nov. 06, 1979
Filed:
Feb. 06, 1978
Applicant:
Inventors:
Phillip W Chambley, Rome, GA (US);
Alan H Norris, Rome, GA (US);
Assignee:
WWG Industries, Inc., Rome, GA (US);
Primary Examiner:
Int. Cl.
CPC ...
H01B / ; D02G / ;
U.S. Cl.
CPC ...
57293 ; 156 732 ; 1565802 ;
Abstract
False-twisted yarn strands are separately carried around a guide wheel and the nodes thereof are brought together and locked by applying heat to the nodes and pressing them together, after which the strands are self-twisted. Embodiments include a cam actuated clamping device which holds the yarns in an ultrasonic transducer to which energy is supplied to accomplish the welding. Devices using resistance heating and laser impulses are also disclosed.