Impact driven hoist

Details Impact driven hoist Impact driven hoist

1997-02-18

1999-10-26

Ellis, Christopher P.

Traversing hoists

Miscellaneous

212331, 212250, 254231, B66C 2304, B66C 1900, B21F 900

Patent

active

059711787

ABSTRACT:
A hoist is constructed for powered drive by an impact tool. The hoist includes tension means for applying a force in tension to a load. Gear means are operatively associated with the tension means for producing a tension force in the tension means. The gear means include a gear element which provides a positive hold of the produced tension force when the gear means are not being driven. Impact fitting means are connected to the gear element for enabling the gear means to be power driven by an impact tool.

REFERENCES:
patent: 721946 (1903-03-01), Foster
patent: 1551426 (1925-08-01), Pavella
patent: 1598273 (1926-08-01), Fitch
patent: 3481583 (1969-12-01), Ulbing
patent: 4157171 (1979-06-01), Hassel.ang.s
patent: 4310098 (1982-01-01), Dirksen
patent: 5623751 (1997-04-01), Knutson
patent: 5720400 (1998-02-01), Altizer, Sr.

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