Buoys – rafts – and aquatic devices – Water skimming or walking device – Water ski
Patent
1981-01-14
1983-02-01
Blix, Trygve M.
Buoys, rafts, and aquatic devices
Water skimming or walking device
Water ski
2642791, A63C 500, A63C 900, A63C 1100, A63C 1500
Patent
active
043713521
ABSTRACT:
A water ski tow handle having a unique core bar construction is provided and comprises an elongated tubular and cylindrical core bar constructed of a rigid material. A pair of cylindrical plugs having an outside diameter slightly greater than the inside diameter of the core bar are press fit into each end of the core bar so that one end of each plug is flush with its associated end of the core bar. The plugs sealingly engage the inner bore of the core bar and form a flotation chamber within the core bar between the plugs. A transverse hole is formed, preferably by drilling, through each end of the core bar and also through the plug and each transverse bar is dimensioned to receive one prong of a tree bar therethrough. The core bar is then encased with a resilient material, preferably by transfer or injection molding, during which time the tree bar prevents longitudinal displacement of the plugs relative to the core bar.
REFERENCES:
patent: 3092068 (1963-06-01), Brownson
patent: 3537418 (1970-11-01), Brownson
patent: 3734049 (1973-05-01), Humbert
patent: 3926201 (1975-12-01), Katz
patent: 3930460 (1976-01-01), Beck
patent: 4043290 (1977-08-01), Holland
patent: 4060049 (1977-11-01), Rumbaugh
patent: 4210478 (1980-07-01), Shoney
Blix Trygve M.
Keen D. W.
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