Pneumatically operable screw driver

Details Pneumatically operable screw driver Pneumatically operable screw driver

1999-05-20

2000-12-05

Smith, James G.

Tools

Wrench, screwdriver, or driver therefor

Machine

81 5731, 81434, 173 935, B25B 1300

Patent

active

061551392

ABSTRACT:
An air motor is provided in a housing and driven by the compression air introduced from an intake port. An anvil, receiving the rotational force of the air motor, has a rear end accommodated in the housing and a front end protruding out of the housing. A driver bit, engaged with a screw inserted into a board member, is rotatable and shiftable together with the anvil relative to the housing. An intake valve is responsive to a retractile shift movement of the driver bit to open an air passage connecting the intake port to the air motor. The intake valve closes this air passage in response to a protrusile shift movement of the driver bit returning to its original position so as to stop the air motor. An assist means is provided for applying the pressure of the compression air to a rear end surface of the anvil in response to the rotation of the air motor.

REFERENCES:
patent: 4059034 (1977-11-01), Hornung
patent: 4920836 (1990-05-01), Sugimoto et al.
patent: 5231902 (1993-08-01), Uno et al.
patent: 5730035 (1998-03-01), Ohmori et al.

Affiliated with

Also associated with

Rating

Pneumatically operable screw driver does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Pneumatically operable screw driver, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Pneumatically operable screw driver will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-950651