Hydraulic-driven electro-lifting device

Details Hydraulic-driven electro-lifting device Hydraulic-driven electro-lifting device

1979-02-21

1982-04-06

Paperner, Leslie J.

Material or article handling

Vertically swinging load support

Grab

294 655, B66C 106

Patent

active

043233295

ABSTRACT:
An improved mobile magnetic lifting assembly for providing magnetic pickup and release in response to hydraulic control. A hydraulic drive motor and electric generator are disposed within a housing which includes an electromagnet attached thereto. The motor drives the generator which is electrically coupled to an electromagnet. The housing includes a suspension brakcet for detachably securing the housing to the boom of a lifting apparatus, as a crane. Hydraulic connections extend through the housing to provide hydraulic motor drive control of the electrical power to the electromagnet.

REFERENCES:
patent: 2622750 (1952-12-01), Ehlers
patent: 3009727 (1961-11-01), Jones et al.
patent: 3016260 (1962-01-01), Schrader
patent: 3045620 (1962-07-01), Buck
patent: 3487964 (1970-01-01), Riley
patent: 3799602 (1974-03-01), Laws et al.
patent: 4005895 (1977-02-01), Cullings

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