Title:
BALL-WORM TRANSMISSION
Document Type and Number:
WIPO Patent Application WO2003042574
Kind Code:
A3
Abstract:
A ball-worm transmission is provided which replaces the sliding friction of the classic worm mechanism with the rolling friction of spherical balls. The ball-worm transmission assembly includes a worm 1 which defines a recirculation path, and a gear 2 coupled to the worm via a plurality of spherical balls 3. The gear 2 includes a plurality of teeth each having a thickness in a central plane of the gear 2 and a lesser thickness towards both sides of the gear 2, so that a gap is defined between the teeth is larger towards both sides of the gear 2 than in the central plane of the gear.
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Inventors:
STOIANOVICI DAN (US)
KAVOUSSI LOUIS (US)
KAVOUSSI LOUIS (US)
Application Number:
PCT/US2002/032119
Publication Date:
October 23, 2003
Filing Date:
October 16, 2002
Export Citation:
Assignee:
STOIANOVICI DAN (US)
KAVOUSSI LOUIS (US)
HOLTZ DOUGLAS (US)
KAVOUSSI LOUIS (US)
HOLTZ DOUGLAS (US)
International Classes:
F16H19/04; F16H1/00; F16H1/16; F16H55/24; F16H; (IPC1-7): F16H1/16; F16H55/24
Foreign References:
| USRE30049E | 1979-07-24 | |||
| US2664760A | 1954-01-05 | |||
| US4077274A | 1978-03-07 | |||
| US4047449A | 1977-09-13 | |||
| US4006646A | 1977-02-08 |
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