Marine craft lift

Details Marine craft lift Marine craft lift

1988-07-26

1989-08-29

Taylor, Dennis L.

Hydraulic and earth engineering

Marine vessel portage, launching, or removing

Lifting

405 4, 405 7, 254336, 254389, 254394, B63C 108

Patent

active

048611921

ABSTRACT:
An apparatus for elevating objects and consisting of a frame for bearing on a subjacent support surface for the apparatus, a platform having an upwardly facing surface for bearing against an object to be elevated and laterally spaced sides and mounted to the frame for movement relative to the frame in a vertical direction between a lowered position and a raised position, a flexible cord, a winch mounted on the frame for selectively retrieving and paying out the cord, an elongate hollow conduit with spaced opposite ends mounted to the platform so that the conduit length is aligned laterally with respect to the platform, and wherein the cord extending from the spaced opposite ends of the conduit is connected to the winch and frame so that as the line is retrieved by the winch a lifting force is exerted on the conduit to elevate the platform.

REFERENCES:
patent: 710170 (1902-09-01), Weindorf
patent: 3284052 (1966-11-01), Godbersen
patent: 4019212 (1977-04-01), Downer
patent: 4401335 (1983-08-01), Godbersen
patent: 4509446 (1985-04-01), Sutton
patent: 4641596 (1987-02-01), Reprogle et al.
patent: 4686920 (1987-08-01), Thomas
patent: 4787327 (1988-11-01), Porter

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