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. 01, 1986
Filed:
Jun. 08, 1984
Enzo Brusasco, Turin, IT;
Roltra S.p.A., Turin, IT;
Abstract
A screw-nut screw coupling with ball circulation, in which the nut screw comprises at least one radial through bore, the surface of which embraces at least two adjacent turns of a circulation track for the balls. Each of said bores is engaged by a substantially cylindrical block which comprises at one end a diametrical groove for putting said two turns into communication, and is traversed by an axial bore which is closed externally by a removable element and is arranged to allow loading of the balls. These latter are loaded by supporting the screw and nut screw in a mutually coaxial position, and feeding the balls through the bore thereof while the screw is rotated relative to the nut screw.