Material or article handling – Self-loading or unloading vehicles – Conveyor
Patent
1982-12-23
1986-06-03
Blix, Trygve M.
Material or article handling
Self-loading or unloading vehicles
Conveyor
2804141, B60P 310
Patent
active
045926948
ABSTRACT:
A boat trailer which is characterized by laterally spaced longitudinally extending booms or side frame members and cross members which are supported from the side frame members at their ends on axially aligned pivots. The cross members laterally space the booms and have provision for selectively mounting thereon either pairs of transversely spaced longitudinally extending bars which carry assemblies of boat hull engaging members mounted thereon so as to pivot on longitudinally extending axes, or vertically extendable posts with the longitudinal bars and associated boat hull engaging members mounted thereon in elevated relation above the side frame members. The boat trailer eliminates the necessity of rigid cross frame members structurally interconnecting the side frame members, or booms, and enables the trailer structure to be readily adapted to carry either shallow draft, shoal draft, or deep keel boats having various hull configurations.
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patent: 3077276 (1963-02-01), Thwreatt
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patent: 3974924 (1976-08-01), Ullman, Jr.
Avila Stephen P.
Blix Trygve M.
EZ Loader Boat Trailers, Inc.
Roehrig, Jr. August E.
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