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:
Sep. 26, 1978
Filed:
Dec. 27, 1976
Applicant:
Inventor:
Guy Courvoisier, Geneva, CH;
Assignee:
Nuova San Giorgio S.p.A., Genova-Sestri, IT;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B65H / ;
U.S. Cl.
CPC ...
242 / ; 57 3 / ; 242 / ; 242 19 ;
Abstract
A device for bobbin doffing on a spinning frame. The device comprises a conduit connected to a suction source and means for replacing the bobbin with a yarn winding tube. This suction conduit is carried to move its suction inlet between a first position adjacent the yarn length stretched between a spinning unit and the bobbin, and a second position at which a pusher brings the yarn in contact with the surface of said winding tube. The invention is particularly suitable for use on open end spinning frames.