Clamping tool and method

Details Clamping tool and method Clamping tool and method

1973-08-28

1977-03-22

Hohauser, Herman

Electrical transmission or interconnection systems

Switching systems

Condition responsive

81 5711, 192142R, F16D 1700

Patent

active

040138950

ABSTRACT:
A clamping tool is provided with an electric motor as a driving source of the tool. The condition of the axial force of the clamping means, such as a bolt and nut, on the clamped elements, such as metal sheets is detected by monitoring one of the following quantities of the motor or motor circuit: current, voltage, numbers of rotation, and electric power of said electric motor. When the differential coefficient of the measured quantity reaches approximately zero, after the transient starting conditions have subsided, the motor is stopped. This occurs substantially at the yielding point of the clamping means.

REFERENCES:
patent: 3581383 (1971-06-01), Tadahira et al.
patent: 3589489 (1971-06-01), Fehlings

Affiliated with

Also associated with

Rating

Clamping tool and method does not yet have a rating. At this time, there are no reviews or comments for this patent.

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1957949