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:
Oct. 04, 1994
Filed:
Apr. 09, 1993
L.G.L. Elettronica S.p.A., Bergamo, IT;
Abstract
An electropneumatic device for the automatic threading of apparatuses for feeding weft to textile machines, and a weft feeding apparatus including the device. The device has first and second ducts for feeding pressurized pneumatic fluid. The ducts are cut off by a manually-actuated valve and end in thread inlet and outlet bushes to create a pneumatic flow and a consequent suction current which entrains the thread from one end of the feeder apparatus to the other. An intermediate open channel is arranged adjacent and parallel to the drum of the apparatus to convey the pneumatic flow and the thread entrained thereby in the free portion comprised between the radial arm outlet and a thread brake. A pneumatic pusher is fed by a third pneumatic duct and is arranged at the outlet of the intermediate channel. The pusher acts on a braking device to deform it and hinder elastic action applied to the drum, so as to guide the thread entrained by the flow through the braking device.