Land vehicles – Wheeled – Articulated vehicle
Patent
1985-12-19
1987-07-14
Spar, Robert J.
Land vehicles
Wheeled
Articulated vehicle
414478, B60D 106
Patent
active
046798129
ABSTRACT:
An apparatus for simplifying the launching and retrieval of a boat from its trailer is provided. The apparatus includes a longitudinal body, an electrical or manual winch, a coupler for mounting to the trailer hitch ball on the towing vehicle, a trailer hitch ball for coupling the boat trailer to the apparatus and a locking assembly to secure the apparatus to the boat trailer structure.
REFERENCES:
patent: 2713501 (1955-07-01), Peak
patent: 3411644 (1968-11-01), Cook
patent: 3645560 (1972-02-01), Steele
patent: 3843163 (1974-10-01), Hale
patent: 4248451 (1981-02-01), Usinger
patent: 4286906 (1981-09-01), Robertson
Sears catalog, Item 10, "Port Adapter Plate".
Millman Stuart J.
Spar Robert J.
Thompson Daniel V.
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