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:
Jun. 21, 2016

Filed:

Sep. 19, 2013
Applicant:

Umbra Cuscinetti S.p.a., Foligno (PG), IT;

Inventors:

Luciano Pizzoni, Foligno, IT;

Romano Beffa, Perugia, IT;

Riccardo MacCaglia, Montecastrilli, IT;

Massimiliano Bosi, Foligno, IT;

Marcello Piermarini, Foligno, IT;

Assignee:

UMBRA CUSCINETTI S.P.A., Foligno (PG), IT;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F16H 3/06 (2006.01); F16H 25/24 (2006.01); F16H 25/22 (2006.01); F16H 25/20 (2006.01);
U.S. Cl.
CPC ...
F16H 25/24 (2013.01); F16H 25/2214 (2013.01); F16H 2025/204 (2013.01); F16H 2025/2078 (2013.01); Y10T 74/18576 (2015.01);
Abstract

A linear electro-mechanical actuator, includes a containment structure (), one or two pushers facing each other (), a nut () rotatable about an axis (X) driven by a driving force, a screw shaft () inserted in the nut (), connected to the pushers and interconnected with the nut () via a helical recirculating ball coupling (), and an anti-rotation mechanism () acting on the screw shaft () to prevent the screw shaft () from rotating about the axis (X). The anti-rotation mechanism () includes a pair of fixed guide bars (), coupled in a sliding fashion with the screw shaft () and extending along a direction parallel to the axis (X) and spaced from the axis (X).


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