Water tumbler and roller float

Details Water tumbler and roller float Water tumbler and roller float

1975-01-06

1976-04-27

Blix, Trygve M.

Undertaking

9310F, 115 20, B63B 3572

Patent

active

039530248

ABSTRACT:
A hollow semi-rigid cigar-shaped float formed with helical external projections in the form of two corkscrew threads for use in water sport. Each corkscrew thread projection is formed from the middle of the float to an end, with one end of the float shaped as a right hand thread and the other shaped as a left hand thread. When a swimmer stands on the middle portion of the float, in water, and causes the float to rotate, the effect of the external rotation of both threads in the water, cancels any sidewise thrust of either thread. However, by shifting his position on the float so that a greater length of one thread is immersed in the water, the user may cause the float to move in one axial direction or the other, when the float is caused to rotate, in simulated log-rolling fashion. A quantity of water may be added to the internal recess of the float for purposes of ballast and the internal surface of the float may be fitted with projections to retard the motion of the water ballast, in relation to the internal wall of the float.

REFERENCES:
patent: 1798594 (1931-03-01), Deppner
patent: 2175197 (1939-10-01), Kent, Jr.
patent: 2216656 (1940-10-01), Smythe
patent: 3223411 (1965-12-01), Becroft

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