Planetary gear transmission systems or components – Fluid drive or control of planetary gearing – Fluid pump and motor in one of plural paths to or from...
Reexamination Certificate
2011-03-08
2011-03-08
Estremsky, Sherry (Department: 3655)
Planetary gear transmission systems or components
Fluid drive or control of planetary gearing
Fluid pump and motor in one of plural paths to or from...
C475S073000
Reexamination Certificate
active
07901314
ABSTRACT:
A transmission system for use in a pump system comprising a prime mover driving a pump, the transmission system comprising: an epicylic gear system comprising a sun gear and a ring gear, and a planet gear engaged between the sun gear and ring gear; a main input drive arranged to be driven by the prime mover; an auxiliary input drive arranged to be driven by the prime mover; and an output drive arranged to drive the pump; wherein the main input drive is connected to the sun gear and either (i) the auxiliary input drive is connected to the ring gear and the output drive is lead from the planet gear; or (ii) the auxiliary input drive is connected to the planet gear and the output drive is lead from the ring gear.
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patent: 2006/0016599 (2006-01-01), Badalamenti et al.
patent: 2009/0041588 (2009-02-01), Hunter et al.
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Metson James
Salvaire Andre
Cate David
Estremsky Sherry
Griffin Jeffrey
Nava Robin
Schlumberger Technology Corporation
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