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:
Jan. 09, 1990
Filed:
May. 31, 1989
Applicant:
Inventors:
Pierre Patin, Paris, FR;
Pierre-Armand Patin, Paris, FR;
Assignee:
Electricite de France Service National, Paris, FR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16H / ;
U.S. Cl.
CPC ...
474 50 ; 474 54 ;
Abstract
Pulley usable in single or double form. It comprises a guidance structure (3) for segments (4) displaceable in accordance with the setting of the rods (7), which are advantageously symmetrically extended with respect to a pivot (9) and carrying an opposite counterweight. The segments (4) are circular arcs in order to ensure a good adhesion of the belt. Advantageously the counterweights are segments (42), which makes it possible to obtain a double pulley formed from two coaxial pulleys, whose diameters vary in opposite directions. The centrifugal force on segments (4) can be balanced. Application to continuous speed variators.