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:
Jul. 19, 1977
Filed:
Jun. 21, 1976
Xaver Suter, Thalwil, CH;
Maschinenfabrik Schweiter AG, Horgen, CH;
Abstract
A housing structure is formed with a suction connection to which pneumatic suction is applied, the suction connection internally terminating in a nozzle which surrounds a rotatable centering cone. The support for the spinning cop, externally of the nozzle, is ring-shaped. A thread drawn out by suction through the nozzle past the ring-shaped support can be clamped against the lower surface thereof upon axial movement of a clamping element for a first distance, complete movement of the clamping element then clamping a further portion of the drawn-off thread against a second clamping surface so that the thread will be taut, and placed in interfering position with a knife edge which cuts the thread at a predetermined point to ensure severing of the drawn-off thread. To provide for a long foot lap, the cop can be lifted repeatedly off the support surface after the thread has been first clamped so that thread is unwound therefrom.