Planetary gear transmission systems or components – Planetary gearing or element – Particular gear tooth feature
Reexamination Certificate
2005-08-12
2008-10-21
Jasmin, Lynda (Department: 4165)
Planetary gear transmission systems or components
Planetary gearing or element
Particular gear tooth feature
C475S331000
Reexamination Certificate
active
07438663
ABSTRACT:
A compound gear system and method comprising a flexible gear defining an array of gear elements in an articulating relationship, a rigid structure defining first and second spaced parallel pluralities of articulating gear support structures arrayed in a ring, the articulating gear reeved tightly about and engaging the support structures, thereby restraining the flexible articulating gear from moving inwardly or rotationally relative to the rigid structure while enabling the flexible gear to expand outward, and at least one sprocket gear having a plurality of sprocket teeth aligned to engage flexible gear element middle areas. The support structures transmit torque between the flexible gear elements and the rigid structure responsive to interaction of the flexible gear element middle areas with the sprocket gear teeth.
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International Search Report and Written Opinion of the International Searching Authority, dated Apr. 10, 2007, reapplication PCT/US2005/028580 of Osborn et al.
Osborn Merritt A.
Radisek Theodore
Daugherty Patrick J.
Driggs, Hogg, Daugherty & Del Zoppo Co., LPA
Jasmin Lynda
Merritt Armstrong Osborn
Momper Anna
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