U.S. patents available from 1976 to present.
U.S. patent applications available from 2005 to present.

Boat ramp

Patent 6592291 Issued on July 15, 2003. Estimated Expiration Date: Icon_subject November 30, 2021. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.

Patent References

2554398

2658354

2889945

3104770

3146599

3221899

3227292

3587874

3693813

3888367

More ...

Inventor

Application

No. 017846 filed on 11/30/2001

US Classes:

405/1, MARINE VESSEL PORTAGE, LAUNCHING, OR REMOVING114/44VESSEL RAISING AND DOCKING

Examiners

Primary: Morano, S. Joseph
Assistant: Vasudeva, Ajay

Attorney, Agent or Firm

International Class

B63C 001/08

Abstract

The new boat ramp has a ladder-style frame having C-shaped elongated lateral side rails held in spaced apart parallel condition by C-shaped cross support beams. One end of the frame is a water end and the other end is a shore end. At least six hull roller assemblies are mounted on the side rails in laterally paired relationship across from each other and in longitudinally spaced relationship. One lateral pair is at the water end. Each assembly has a roller axle carrying a hull roller at each end. The assemblies are mounted so that their axles are in pivotable elevated transverse orientation above the side rails so as to provide hull conforming support for a boat. A keel assembly having a central keel roller of significant axial length in at the water end. The hull rollers of the hull roller assemblies at the water end and the keel roller are all located in such proximity to each other as to substantially preclude all contact by the bow of a boat against structural elements of the ramp at the water end other than the hull rollers and the keel roller. At the shore end is a braced winch assembly for loading boats onto the ramp. The components of the ramp are styled to permit parcel shipment to any location of all components in unassembled condition. Further, the components are easily assembled using well-known and widely used household tools.

PatentsPlus Images
Enhanced PDF formats
loading...
PatentsPlus: add to cart
PatentsPlus: add to cartSearch-enhanced full patent PDF image
$9.95more info
PatentsPlus: add to cart
PatentsPlus: add to cartIntelligent turbocharged patent PDFs with marked up images
$16.95more info
 
Sign InRegister
Username  
Password   
forgot password?