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. 08, 2026
Filed:
Nov. 04, 2025
Roj S.r.l., Biella, IT;
Riccardo Comotto, Biella, IT;
ROJ S.R.L., Biella, IT;
Abstract
A weft feeder for weaving looms with spaced thread coils and adjustable-diameter drum formed of several fixed sectors, each provided with respective support shanks housed in respective seats formed in a static support disk, coaxial to a drive shaft of the weft feeder, and wherein the spacing of said spaced coils on the drum is caused by the oscillatory and tilting movement of several moving sectors, each provided with respective support shanks housed in respective seats formed in a tilting support disk, eccentric and skew with respect to said drive shaft of the weft feeder, and wherein elastic elements are provided, which exert a compressive force on said shanks to keep said fixed sectors and said moving sectors in a position of stable engagement within their respective seats. The fixed sectors and the moving sectors are each provided with a single support shank in the general shape of a trapezoidal right prism, housed in a respective seat consisting of a cavity having a congruent trapezoidal shape, and said elastic elements exert a compressive force on the major base of said support shank having the shape of a trapezoidal right prism.