Land vehicles – Wheeled – Articulated vehicle
Patent
1988-12-21
1989-10-24
Marmor, Charles A.
Land vehicles
Wheeled
Articulated vehicle
414534, B60P 310
Patent
active
048757012
ABSTRACT:
A boat trailer having a frame, a wheel unit supporting the frame, a rear cross member between elements of the frame for supporting a plurality of roller units, and a front cross member between other elements of the frame for supporting a hull supporting unit comprised of an elongated, resilient pad secured to the upper surface of the cross member, and with a plastic or like cover for the pad; and the front cross member having also mounted thereon a keel supporting unit with openings formed in an upper plastic-like element engageable with the front portion of the keel of a boat being transported by the trailer wherein foreign material such as sand and gravel on the keel front portion is removed by said keel supporting unit by passage through the openings, and thereby preventing scouring and scratching of the keel front portion.
REFERENCES:
patent: 2691534 (1954-10-01), Sampsell
patent: 2937775 (1960-05-01), Funk, Jr.
patent: 3044646 (1962-07-01), Sperow
patent: 3104770 (1963-09-01), Calkins et al.
patent: 3203563 (1965-08-01), Blatchford
patent: 3539066 (1970-11-01), Stevenson
patent: 3774790 (1973-11-01), Godbersen
patent: 3917087 (1975-11-01), Godbersen
Copy of page 1320 from Official Gazette dated Jul. 21, 1987 Showing Patent No. 4,681,334 to William D. O'Brien, Jr.
Marmor Charles A.
McGiehan Donn
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