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.

Date of Patent:
Sep. 08, 2026

Filed:

Jun. 25, 2025
Applicant:

Ratier-figeac Sas, Figeac, FR;

Inventor:

Etienne Pluchon, Montfaucon, FR;

Assignee:

RATIER-FIGEAC SAS, Figeac, FR;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16H 25/22 (2006.01); F16H 25/24 (2006.01); F16H 57/04 (2010.01);
U.S. Cl.
CPC ...
F16H 25/2214 (2013.01); F16H 25/2418 (2013.01); F16H 57/0445 (2013.01); F16H 57/0453 (2013.01);
Abstract

A ball screw comprising a screw shaft, a ball nut, and alpha and beta load circuits. The alpha and beta load circuits each include first and second parts. The screw shaft is longitudinally extending with a longitudinal central axis (A) and at least part of the longitudinally extending surface of the screw shaft comprises an external thread, and at least one of the first parts of the alpha and beta load circuits comprise a part of the external thread. The ball nut comprises a body, a bore, the second parts of the alpha and beta load circuits, and an alpha and a beta lubricant channel. The bore is defined by the body, is longitudinally extending with a longitudinal central axis (A), has a first and second end, and has at least one longitudinally extending surface extending between the first and second ends.


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