Dock fender and shock absorber

Details Dock fender and shock absorber Dock fender and shock absorber

1990-09-06

1991-08-06

Taylor, Dennis L.

Hydraulic and earth engineering

Marine structure or fabrication thereof

Structure protection

405211, E02B 326

Patent

active

050372424

ABSTRACT:
An apparatus for protecting a boat from harmful contact with the piling of a dock is provided. The apparatus comprises a generally rigid, vertical, elongated tube, preferably made of PVC pipe and a hollow sleeve. The sleeve is preferably made of concentric layers of resilient and strength imparting material and has a hollow core aligned with the elongated axis of the tube. Lag bolts extend from inside the core of the sleeve, through the sleeve and wall of the tube into a wooden 2.times.4 within the tube. Also, lag bolts extend from inside the core of the sleeve, through the sleeve and into a piling. In this way, the tube is attached to the sleeve which is in turn attached to the piling. A seal and a cap with a vent are attached to the bottom and top of the tube respectively.

REFERENCES:
patent: 3145685 (1964-08-01), Kulick, Sr.
patent: 3372552 (1968-03-01), Liddell
patent: 3950953 (1976-04-01), Matthews
patent: 4227832 (1980-10-01), Leone et al.
patent: 4338046 (1982-07-01), Thomerson
patent: 4411556 (1983-10-01), LeBlanc et al.
patent: 4662791 (1987-05-01), Spicer
patent: 4804296 (1989-02-01), Smath
patent: 4848969 (1989-07-01), Murota et al.
patent: 4884919 (1989-12-01), Moore
patent: 4900192 (1990-02-01), Wood
patent: 4964760 (1990-10-01), Hartman
patent: 4968182 (1990-11-01), Westwell

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