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:
Aug. 05, 2014

Filed:

Jun. 05, 2012
Applicants:

Marc Quenerch'du, Paris, FR;

Gërard Balducci, Saint Germain de la Grange, FR;

Inventors:

Marc Quenerch'Du, Paris, FR;

Gërard Balducci, Saint Germain de la Grange, FR;

Assignee:

Messier-Bugatti-Dowty, Velizy Villacoublay, FR;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16H 3/06 (2006.01); F16H 27/02 (2006.01); F16H 29/02 (2006.01); F16H 29/20 (2006.01);
U.S. Cl.
CPC ...
Abstract

The invention relates to a telescopic actuator comprising a body () defining a cylindrical cavity of longitudinal axis (X); a rod () mounted to slide telescopically in the cylinder along the said axis; a nut () secured to the rod; a lead screw () mounted on the cylinder to extend along and rotate about the said axis (X) and collaborate with the nut in such a way that a rotation of the lead screw causes a telescopic movement of the rod in the cylinder; means () for driving the rotation of the lead screw. According to the invention, the nut is mounted on the rod to be axially retained thereon by retaining means (to) which can be made to release the nut axially from the rod.


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