Locking system for boat water-lifts

Hydraulic and earth engineering – Marine vessel portage – launching – or removing – Lifting

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

114 44, 114 48, 405 4, B63C 306

Patent

active

052755053

ABSTRACT:
The piston rod of a lift cylinder unit on a boat lift is selectively locked from extending or retracting by a locking mechanism having a clamping ring which is sleeved on the piston rod and is biased into locking position by a compression spring engaging a piston in a locking cylinder. This cylinder is selectively supplied with pressurized water to compress the spring and thereby release the clamping ring. Hydraulic lines extend to the lift cylinder and locking cylinder from a control manifold located adjacent the boat lift for remotely operating the lift and the locking mechanism.

REFERENCES:
patent: 2505832 (1950-05-01), Lange
patent: 3021965 (1962-02-01), Harvey
patent: 4022027 (1977-05-01), Tetzner
patent: 4329082 (1982-05-01), Gillis
patent: 4895479 (1990-01-01), Michaelsen et al.
patent: 5051027 (1991-09-01), Horton
patent: 5184914 (1993-02-01), Basta

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

Locking system for boat water-lifts does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Locking system for boat water-lifts, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Locking system for boat water-lifts will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-302644

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