Hand-operated ratchet spanner for tightening screws

Details Hand-operated ratchet spanner for tightening screws Hand-operated ratchet spanner for tightening screws

1984-08-09

1986-09-02

Ruehl, Charles A.

Measuring and testing

Dynamometers

Responsive to torque

81429, B25B 23142

Patent

active

046088725

ABSTRACT:
The hand-operated ratchet spanner contains a measuring value pick-up (4,9) for the angle of rotation of the screw and a device for measuring the torque. The measured values are supplied to a microprocessor (22) in which the screw tightening operation is preprogrammed by respective desired or limit values. Signal lamps (30,31,32) or acoustic signal transmitters (33) indicate to the user as to whether the screw has been correctly tightened. Further, he may recognize the extent to which the screw has been tightened and which part of the tightening operation must be still effected.

REFERENCES:
patent: 4211120 (1980-07-01), Tambini
patent: 4265109 (1981-05-01), Hallbauer et al.

Affiliated with

Also associated with

Rating

Hand-operated ratchet spanner for tightening screws does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Hand-operated ratchet spanner for tightening screws, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Hand-operated ratchet spanner for tightening screws will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1091480