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:
Feb. 03, 2015
Filed:
Sep. 27, 2012
Gerard Buvril, Bourget du Lac, FR;
Philipp Krebs, Lörrach, DE;
Jean-paul Giraudeau, La Motte Servolex, FR;
Sebastien Lecluse, Gruffy, FR;
Gerard Buvril, Bourget du Lac, FR;
Philipp Krebs, Lörrach, DE;
Jean-Paul Giraudeau, La Motte Servolex, FR;
Sebastien Lecluse, Gruffy, FR;
Aktiebolaget SKF, Gothenburg, SE;
Abstract
The roller screw mechanism is provided with a screw comprising an external thread, with a nut arranged around and coaxial with the said screw, the nut comprising an internal thread, and with a plurality of rollers interposed between the screw and the nut and comprising flanks interacting with the said threads. The value of the opening angle α of the flanks of the external thread of the screw is greater than the value of the opening angle of the flanks of the rollers.