Title:
CHAIN DRIVE SYSTEM
Document Type and Number:
WIPO Patent Application WO2005116484
Kind Code:
A3
Abstract:
A system is provided for driving a chain (38, 64, 83, 124, 126) or other flexible device. The system may include a power source (14, 44, 82) connected to one or more screws (18, 60, 62, 78, 80, 116, 118, 120, 122) that are engageable with the chain. Rotation of the screw or screws results in linear motion of the chain. The screws may be power screws, lead screws, or other known types of screws. One or more power screws may be used in combination with threaded components, such as split or quarter nuts (36, 66, 68, 82) which are connected to the chain. One or more lead screws (78, 80) may be used in combination with rollers (82) that are connected to the chain. Two lead screws may be mounted on opposite sides of the chain in generally parallel relationship and engaged with rollers that are mounted on opposite sides of the chain; the two lead screws preferably rotate in opposite directions to impart linear motion to the chain. The system has a variety of applications, such as in downhole tractors for use in oil and gas applications, toys, military tanks, any type of vehicle, etc.
More Like This:
| JPH09105447 | LINEAR RECIPROCATING MOTION DEVICE |
Inventors:
DOERING FALK (US)
DUPREE WADE (US)
DUPREE WADE (US)
Application Number:
PCT/IB2005/051747
Publication Date:
June 22, 2006
Filing Date:
May 27, 2005
Export Citation:
Assignee:
SCHLUMBERGER CA LTD (CA)
PRAD RES & DEV NV (NL)
SCHLUMBERGER SURENCO SA (PA)
SCHLUMBERGER TECHNOLOGY BV (NL)
SCHLUMBERGER SERVICES PETROL (FR)
SCHLUMBERGER OVERSEAS (PA)
SCHLUMBERGER SERVICES LTD (GB)
SCHLUMBERGER HOLDINGS (GB)
SCHLUMBERGER SEACO INC (PA)
SCHLUMBERGER OILFIELD ASSIST
DOERING FALK (US)
DUPREE WADE (US)
PRAD RES & DEV NV (NL)
SCHLUMBERGER SURENCO SA (PA)
SCHLUMBERGER TECHNOLOGY BV (NL)
SCHLUMBERGER SERVICES PETROL (FR)
SCHLUMBERGER OVERSEAS (PA)
SCHLUMBERGER SERVICES LTD (GB)
SCHLUMBERGER HOLDINGS (GB)
SCHLUMBERGER SEACO INC (PA)
SCHLUMBERGER OILFIELD ASSIST
DOERING FALK (US)
DUPREE WADE (US)
International Classes:
F16H7/06; B62D55/20; E21B4/00; E21B10/00; E21B23/14
Foreign References:
| US0595508A | 1897-12-14 | |||
| US1416163A | 1922-05-16 | |||
| US3402618A | 1968-09-24 | |||
| US0418328A | 1889-12-31 | |||
| US4172391A | 1979-10-30 | |||
| JPS5767498A | 1982-04-24 | |||
| US0642430A | 1900-01-30 |
Other References:
PATENT ABSTRACTS OF JAPAN vol. 2000, no. 07 29 September 2000 (2000-09-29)
PATENT ABSTRACTS OF JAPAN vol. 017, no. 483 (M - 1472) 2 September 1993 (1993-09-02)
PATENT ABSTRACTS OF JAPAN vol. 017, no. 483 (M - 1472) 2 September 1993 (1993-09-02)
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