Lift boat
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Feb 25, 2003
Grant Date -
N/A
app pub date -
Nov 13, 2000
filing date -
Nov 12, 1999
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An improved lift boat includes a hull, a plurality of legs (preferably three), a plurality of pads, one pad attached to each leg, and a jacking mechanism for moving each upward and downward. Recesses in the hull receive the pads when the lift boat is underway. Preferably, the total bottom surface area of the pads is at least 30% of the surface area of the deck of the lift boat Preferably, the total bottom surface area of the pads is large enough such that, when the boat is loaded to capacity and is jacked up, the pads exert pressure of less than 7 p.s.i. on the sea floor. Preferably, the pads are partially recessed into the hull and extend laterally outward from the hull when the boat is underway to provide increased stability to the lift boat when it is underway.
First Claim
Other Claims data not available