Low profile floating lift for watercraft

Details Low profile floating lift for watercraft Low profile floating lift for watercraft

2006-04-04

2006-04-04

Will, Thomas B. (Department: 3671)

Hydraulic and earth engineering

Marine vessel portage, launching, or removing

Lifting

C114S044000, C114S048000, C254S01000C, C414S678000

Reexamination Certificate

active

07021861

ABSTRACT:
A floating low profile watercraft lifting apparatus comprises a buoyant support apparatus and a watercraft lift attached to the buoyant support apparatus. Embodiments of the lift have first and second cantilever arms pivotally mounted to a base at offset pivot points for use in shallow water. The lift includes an actuator connected to the first and second cantilever arms and operable to move the first and second cantilever arms between a collapsed configuration and an extended configuration with uniform application of force and a minimum amount of travel of actuator components. Embodiments of the support apparatus comprise pontoons within a frame attached to the lift and providing buoyant support for the lifting apparatus.

REFERENCES:
patent: 4072119 (1978-02-01), Williams
patent: 5184914 (1993-02-01), Basta
patent: 5485798 (1996-01-01), Samoian et al.
patent: 5860379 (1999-01-01), Moody
patent: 5908264 (1999-06-01), Hey
patent: 6076478 (2000-06-01), Siegmann
patent: 6131528 (2000-10-01), Meek et al.
patent: 6752096 (2004-06-01), Elson et al.
patent: 6752097 (2004-06-01), Elson et al.

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