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:
Jul. 16, 1991
Filed:
Nov. 02, 1989
Applicant:
Inventor:
Michel Orain, Conflans-Ste-Honorine, FR;
Assignee:
Glaenzer Spicer, Poissy, FR;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B23Q / ;
U.S. Cl.
CPC ...
29559 ; 5121 / ; 51291 ; 269156 ; 269268 ;
Abstract
A roller segment (14) is held for the purpose of machining a spherical internal bearing surface (10). Its toric external surfaces (18) is supported against two fixed seats (17), immobilized with respect to rotation about an axis (VV') passing through the centers (c) of the profiles of the fixed seats (17) by a third seat (19), which is radially movable. Claws (21) hold the segment against the seats and circumferentially position the segment about the axis (UU') of its toric surface (18). The bearing surface (10) is ground with a slight eccentricity (e) relative to the toric surface, and by grinding a surface suitable for hydrodynamic lubrication is obtained.