Boat lift

Ships – Vessel raising and docking

Reexamination Certificate

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

C405S003000

Reexamination Certificate

active

07318385

ABSTRACT:
The pontoon boat lift system comprises a plurality of lifts. Each lift is comprised of a channel that mounts to deck support members of the boat. One end of a leg is pivotally mounted to one end of the channel. A screw supported in the channel is turned by a connection to an electric motor. A threaded follower on the screw travels along the screw when it is rotated by the motor. A fulcrum arm connects between the threaded follower and the leg to transmit a longitudinal movement of the follower into a pivotal movement of the leg. The leg is thus moveable between a raised and a lowered position. A base pad connected to the opposite end of the leg comprises a plurality of spaced support surfaces that contact the bottom of a body of water. The base pad supports the leg on the bottom of the body of water and easily separates from the bottom when the leg is moved to the raised position. The operation of the lifts is coordinated to raise the pontoon boat above the surface of the water at desired shoreline locations.

REFERENCES:
patent: 4103869 (1978-08-01), Mesny et al.
patent: 5184914 (1993-02-01), Basta
patent: 5348330 (1994-09-01), Few et al.
patent: 5482401 (1996-01-01), Spisak
patent: 5501428 (1996-03-01), Garceau
patent: 5558034 (1996-09-01), Hodapp
patent: 6224102 (2001-05-01), Nebel
patent: 6494487 (2002-12-01), Nebel
patent: 6907835 (2005-06-01), Derner et al.
patent: 6983707 (2006-01-01), Derner et al.
patent: 7051665 (2006-05-01), Derner et al.
patent: 7156030 (2007-01-01), Derner et al.
patent: 7267066 (2007-09-01), Derner

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Boat lift does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Boat lift, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Boat lift will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-3964305

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.