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Patent Searching and Data


Title:
PNEUMATIC ROTARY TOOL
Document Type and Number:
WIPO Patent Application WO2001054865
Kind Code:
A3
Abstract:
A pneumatic rotary tool has a housing formed primarily from plastic so that the weight and price of the tool are substantially reduced. The air motor is formed for economic assembly while permitting greater structural stability should the housing deflect under an impact. The tool includes a torque selector which controls the amount of pressurized air allowed to enter the air motor, thereby controlling the torque output of the motor. The user may adjust the torque selector to a number of set positions which correspond to discrete torque values. The tool additionally incorporates early and late stage exhaust ports, so that backpressure within the air motor does not slow motor rotation or decrease tool power.

Inventors:
IZUMISAWA OSAMU (JP)
Application Number:
PCT/US2001/002785
Publication Date:
February 14, 2002
Filing Date:
January 26, 2001
Export Citation:
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Assignee:
S P AIR KK (JP)
IZUMISAWA OSAMU (JP)
International Classes:
B25B21/02; B25B23/14; B25B21/00; B25B23/145; B25F5/00; (IPC1-7): B25F5/00; B25B21/02
Foreign References:
US2581033A1952-01-01
US2569244A1951-09-25
US2331874A1943-10-19
EP0876883A21998-11-11
US5346024A1994-09-13
US5591070A1997-01-07
DE3330891A11985-03-14
GB811252A1959-04-02
FR2097803A51972-03-03
US5918686A1999-07-06
EP0849052A21998-06-24
US3714994A1973-02-06
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