Pneumatically operable screw driver

Details Pneumatically operable screw driver Pneumatically operable screw driver

1999-03-15

2000-06-13

Smith, James G.

Tools

Wrench, screwdriver, or driver therefor

Machine

81431, 81433, 227 8, B25B 2304

Patent

active

06073521&

ABSTRACT:
A main valve and a manual operating valve cooperatively control the compressed air supplied to an air motor and a piston. The main valve is responsive to the compressed air supplied from the manual operating valve via an air passage. An orifice is provided in the air passage to reduce the speed of the compressed air supplied to the main valve so that the shift movement of the main valve is delayed when the manual operating valve is closed.

REFERENCES:
patent: 5231902 (1993-08-01), Uno et al.
patent: 5495973 (1996-03-01), Ishizawa et al.
patent: 5730035 (1998-03-01), Ohmori et al.
patent: 5862724 (1999-01-01), Arata et al.
An Edition For "Pneumatically-Operated Nail Drivers" By Hitachi Koki Co., Ltd.,; Sep. 1991; pp., 29-36.

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