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. 30, 2002
Filed:
Nov. 20, 2000
Xavier Roquet, Duisburg, DE;
Heinz Stenmans, Grefrath, DE;
Volkmann GmbH, , DE;
Abstract
A cabling and yarn double-twisting spindle having pneumatic assistance for a threading up of the yarns to be handled by the spindle is provided. The spindle includes a shaft rotatably supportable in a support hub on a spindle bank. The shaft has a central, axially extending shaft bore, and package top. The package top is secured against rotation and has a hollow spindle axial portion disposed in communication with the spindle shaft bore. A pressurized air injector effects threading up of a yarn component delivered via the hollow spindle axial portion of the package top with another yarn component delivered via the spindle shaft bore, and includes a pressurized air supply conduit in the spindle shaft such that the pulse of air injected by the air injector is operable to produce a suction flow in the hollow spindle axial portion of the package top and in the spindle shaft bore.