Planetary gear transmission systems or components – Planet pinion is friction gear – Variable speed ratio
Reexamination Certificate
2004-11-11
2009-10-27
Pang, Roger (Department: 3655)
Planetary gear transmission systems or components
Planet pinion is friction gear
Variable speed ratio
C475S185000
Reexamination Certificate
active
07608006
ABSTRACT:
A continuously variable transmission device has planetary members (23) in rolling contact with radially inner and outer races (12, 14; 36, 37) each comprising axially spaced relatively axially movable parts, and control means (18) for determining the axial separation of the parts (12, 14) of one of the two races, in which the planetary members (23) are connected for drive transmission to an input or output member (30) of the transmission device by connection means which allows the radial position of the planets to vary in response to variation in the axial separation of the parts (12, 14) of the said one of the two races (37), and in which the generatrix of the curved surface (70, 71) of at least one of the races (37) and/or planetary members (23) is non-circular.
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UK Search Report dated Mar. 3, 2005. Application No. GB 0326596.4.
Gifford Krass Sprinkle Anderson & Citkowski P.C.
Orbital Traction Ltd.
Pang Roger
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