Adjustable-torque screwdriving spindle assembly

Details Adjustable-torque screwdriving spindle assembly Adjustable-torque screwdriving spindle assembly

1997-10-14

1999-05-18

Herrman, Allan D.

Machine element or mechanism

Mechanical movements

Oscillation or reciprocation to intermittent unidirectional...

53317, 533315, 91 59, 91468, F16H29/20

Patent

active

059040670

ABSTRACT:
A screwdriving spindle assembly comprising a spindle shaft provided with a holding device and secured to a gear wheel rotated by a drive assembly which comprises a pressurized fluid actuating cylinder having a piston rod secured to a transmission system, and a member for adjusting pressure disposed on a line for feeding fluid to the cylinder in the screw-tightening direction.

REFERENCES:
patent: 1920240 (1933-08-01), Brady
patent: 3866463 (1975-02-01), Smith et al.
patent: 4637423 (1987-01-01), Gray
patent: 4756137 (1988-07-01), Lanigan
patent: 5027932 (1991-07-01), Bertaud
patent: 5423159 (1995-06-01), Bankuty et al.
patent: 5473855 (1995-12-01), Hidding et al.

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