Pneumatically operated screw driver

Details Pneumatically operated screw driver Pneumatically operated screw driver

2006-03-21

2006-03-21

Smith, Scott A. (Department: 3721)

Tool driving or impacting

Automatic control of power operated means

Drive means responsive to condition of advance causing or...

C173S013000, C173S093500, C081S057440, C081S434000

Reexamination Certificate

active

07013985

ABSTRACT:
A compact and light-weight pneumatically operated screw driver providing high speed screw fastening with high operability. A rotary member rotationally driven by a pneumatic motor includes a main rotary member made from a plastic material and a sliding segment fixed to the main rotary member. A rotation slide member is axially slidably movable relative to the rotary member and is rotatable together with the rotation of the rotary member. A shut-off section is provided on which the rotation slide member is rotationally seated when the rotation slide member is moved toward the shut-off section. The rotation slide member is made from an elastic material. A sleeve like piston having a seal ring in sliding contact with a cylinder is provided. The seal ring shuts off a supply of compressed air to the pneumatic motor only by the seating of the rotation slide member onto the shut-off section.

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patent: 6880431 (2005-04-01), Wakabayashi et al.
patent: 6942042 (2005-09-01), Lee
patent: 11300639 (1999-11-01), None

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