Material or article handling – Self-loading or unloading vehicles – Conveyor
Patent
1979-08-09
1985-07-23
Sheridan, Robert G.
Material or article handling
Self-loading or unloading vehicles
Conveyor
2804141, 403119, 4032321, B60P 310
Patent
active
045306346
ABSTRACT:
A boat trailer having at least one pivotally mounted crossbar member facilitating loading and unloading a trailer and assuring efficient support of a boat loaded thereon. The crossbar member of the invention is provided with a dropped or curved configuration which supports the hull of a boat at a lowermost position for stability and for effective loading and unloading. The pivotal mounting and curved form of the crossbar member not only maintains the keel or hull as low as possible but naturally permits the hull contacting elements to tilt inwardly without the need for any particular tilting capability. The crossbar member is supported on the trailer booms by an improved bracket having the capability of effectively supporting the crossbar member for pivotal movement.
REFERENCES:
patent: 414169 (1889-10-01), Reuschel
patent: 3160297 (1964-12-01), Stumvoll
patent: 3408975 (1967-03-01), Desfilles
patent: 3756439 (1973-09-01), Johnson
patent: 3785677 (1974-01-01), Calkins
patent: 3888367 (1975-06-01), Cox
patent: 3892320 (1975-07-01), Moore
patent: 3917087 (1975-11-01), Godbersen
patent: 3974924 (1976-08-01), Ullman
Roehrig, Jr. August E.
Sheridan Robert G.
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