Pontoon lift mechanism

Details Pontoon lift mechanism Pontoon lift mechanism

2011-06-28

2011-06-28

Avila, Stephen (Department: 3617)

Ships

Vessel raising and docking

Floating dry docks

Reexamination Certificate

active

07966958

ABSTRACT:
The present invention relates to a pontoon lift mechanism includes: a plurality of PVC tubing aligned in parallel; a portion of the plurality of PVC tubing including air filled PVC tubes; a portion of the plurality of PVC tubing including water filled PVC tubes; and an inlet valve and outlet valve provided for each PVC tube. The air filled PVC tubes and water filled PVC tubes abut each other and alternate in the parallel alignment of the tubes. The pontoon lift mechanism also includes a means to fill the air filled PVC tubes and the water filled PVC tubes, where said means to fill includes an air hose extending from an air supply valve and a water hose extending from a water supply valve.

REFERENCES:
patent: 2834311 (1958-05-01), Engstrand
patent: 4280429 (1981-07-01), Wells
patent: 6923133 (2005-08-01), Ross et al.

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