Planetary gear transmission systems or components – Nonplanetary variable speed or direction transmission... – Nonplanetary transmission is friction gearing
Reexamination Certificate
2011-06-07
2011-06-07
Pang, Roger (Department: 3655)
Planetary gear transmission systems or components
Nonplanetary variable speed or direction transmission...
Nonplanetary transmission is friction gearing
C475S217000, C476S039000
Reexamination Certificate
active
07955210
ABSTRACT:
A variator transmission comprises an input shaft (18), an input disc (10) mounted on the input shaft for rotation therewith and an output disc (12) facing the input disc and arranged to rotate coaxially therewith, the input and output discs defining between them a toroidal cavity. Two rollers (14, 16) are located in the toroidal cavity and first and second roller carriage means are provided upon which the first and second rollers respectively are rotatably mounted and end load means (34, 36) urge the rollers into contact with the input and output discs to transmit drive. The two roller carriage means are mounted on opposite sides of the pivotal axis of a lever (50) and the pivotal axis of the lever (50) is movable in the radial direction with respect to the rotational axis of the input and output discs.
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International Search Report; International Application No. PCT/EP2006/050860, filing date: Oct. 2, 2006.
Written Opinion of the International Searching Authority; International Application No. PCT/EP2006/050860; filing date: Oct. 2, 2006.
De Freitas Andrew Damian
Greenwood Christopher John
Oliver Robert Andrew
Brooks & Kushman P.C.
Pang Roger
Torotrak (Development) Limited
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