Electricity: magnetically operated switches – magnets – and electr – Magnets and electromagnets – Work or object holding type
Patent
1987-07-15
1989-07-11
Harris, George
Electricity: magnetically operated switches, magnets, and electr
Magnets and electromagnets
Work or object holding type
335290, 335294, H01F 720
Patent
active
048475823
ABSTRACT:
A magnetic gripping apparatus for gripping metal parts on machine tools, conveyor systems and the like. The apparatus comprises an external ferromagnetic yoke having a base plate and lateral walls; a first and at least a second pole unit, each unit comprising a main pole piece having an outer face defining a work-gripping surface parallel to said base plate; and an intermediate pole member between said first and second pole units, said pole member extending from the base plate to the gripping surface, and permanent magnets arranged at least between the main pole pieces, the base plate and an electric winding encirling the magnets between the main pole pieces and the base plate, said permanent magnets, in an activated condition of the apparatus, providing a pole distribution on the gripping surface in which said first and second pole units exhibit poles of opposite polarity on their outer faces.
REFERENCES:
patent: 675235 (1901-06-01), Clark
patent: 2286238 (1942-06-01), Simmons
patent: 2348967 (1944-05-01), Duby
patent: 2771571 (1956-11-01), Carson et al.
patent: 3316514 (1967-04-01), Radus et al.
patent: 3340442 (1967-09-01), Braillon
patent: 3389358 (1968-06-01), Tubbs
patent: 3555474 (1971-01-01), Marcher
patent: 3978441 (1976-08-01), Sobottka et al.
patent: 4014289 (1977-03-01), Zimmer
patent: 4075589 (1978-02-01), Braillon
patent: 4090162 (1978-05-01), Cardone et al.
patent: 4141547 (1979-02-01), Duquenne et al.
patent: 4251791 (1981-02-01), Yanagisawa et al.
patent: 4507635 (1985-03-01), Cardone et al.
"Permanent Magnets in Theory and Practice", pp. 240-246.
Cardone Michele
Grandini Angelo
Zaramella Bruno
Harris George
Tecnomagnete S.p.A.
LandOfFree
Magnetic gripping apparatus 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 gripping apparatus, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Magnetic gripping apparatus will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-439427