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:
Nov. 10, 1998
Filed:
Nov. 14, 1996
Applicant:
Inventor:
Didier Gallienne, Landigou, FR;
Assignee:
Bertrand Faure Equipements S.A., Boulogne Cedex, FR;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F16H / ;
U.S. Cl.
CPC ...
74425 ; 74 8914 ; 74432 ; 74446 ; 74458 ;
Abstract
A reduction gear with two reduction stages including a first reduction stage consisting of a wheel and worm screw system. The system has a screw and a first wheel. A second stage includes a pinion meshing with a second toothed wheel. The wheel of the wheel and worm screw system includes two lateral parts spaced axially and equipped with teeth adapted to mate with the thread of the screw. A center part is located between the lateral parts, and includes teeth with an outside diameter less than the diameter of the teeth of the first wheel, this center part forming the pinion of the second reduction stage.