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:
Feb. 19, 2008

Filed:

Jan. 05, 2004
Applicant:

Dean E. Hartley, Burlington, NC (US);

Inventor:

Dean E. Hartley, Burlington, NC (US);

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16H 55/56 (2006.01); F16H 59/00 (2006.01);
U.S. Cl.
CPC ...
Abstract

Apparatuses and methods are disclosed for controlling a variable-speed transmission utilizing a pulley structure including first and second pulley members coupled for free rotation together about a shaft. The second pulley member can be axially movable relative to the first pulley member, and can include a pulley contact surface disposed generally opposite to the first pulley member. A coupling member is provided for communicating with the shaft to rotatably drive the shaft. The coupling member includes a coupling member contact surface disposed for selective frictional engagement by the pulley contact surface. Torque can be selectively coupled and decoupled to a transmission, as well as vary a speed of the transmission.


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