Magnetic gripper

Details Magnetic gripper Magnetic gripper

1989-07-11

1991-08-06

Harris, George

Electricity: magnetically operated switches, magnets, and electr

Magnets and electromagnets

Work or object holding type

335291, H01F 720

Patent

active

050381288

ABSTRACT:
A magnetic gripper avoiding the disadvantages of the well-known devices of reduced lifting capacity, increased electric power consumption and small gripping force finds application in mechanical engineering for the transportation of ferromagnetic materials. The device has a U-shaped casing of magnetic soft material, at least two pairs of permanent magnets, one of their ends resting on the casing and the other on a common pole terminal enveloped in a neutralizing winding and all magnets are enveloped by a magnetizing winding. The magnetic gripper can lift thick sheets and packs of thin sheets when short-time current pulse of the magnetizing winding is fed and the permanent magnets are magnetized in one direction, the magnetic flux formed is collected in the common pole terminal. To free the sheets, a current pulse of the common neutralizing winding is fed and the direction of magnetization is reversed. For the regulation of the gripping force in some sectors of the poles, the magnetic flux is summed and in others is subtracted, thus achieving changes of the gripping force on a wide range with reduced energy consumption.

REFERENCES:
patent: 4090162 (1978-05-01), Cardone et al.
patent: 4594568 (1986-06-01), Hubner et al.

Affiliated with

Also associated with

Rating

Magnetic gripper does not yet have a rating. At this time, there are no reviews or comments for this patent.

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1989900