Variable-length twirlable baton

Details Variable-length twirlable baton Variable-length twirlable baton

1997-12-23

1998-10-27

Hafer, Robert A.

Amusement devices: toys

Rotating or having visible rotating portion

Handle supported manually actuated rotating portion

84477B, A63H 3300

Patent

active

058271082

ABSTRACT:
A baton useable by a drum major or by any other user capable of twirling the baton and in doing so varying its overall length the baton including an open-ended main tube that can be grasped by the user, the tube being divided by an internal transverse beam into opposing half sections. Telescoped into each half section through the open end thereof is a cylindrical rod having secured to its outer end a weighted ball. The inner end of each rod is connected by an elastic band to the beam whereby in the static state of the baton the balls are equidistant from the beam and the baton has a predetermined overall length. When a user twirls the baton, the resultant centrifugal forces acting on the balls causes the rods to advance outwardly to lengthen the baton to an extent that depends on the twirling velocity. A diminishing action causes the rods to retract into the half sections of the tube to shorten the baton. When the baton is used as a shaft and is hurled toward the ground so that an end ball strikes the ground, the shaft then rebounds toward the hurler.

REFERENCES:
patent: 2812683 (1957-11-01), Harrold et al.
patent: 2956369 (1960-10-01), Rolin
patent: 3069804 (1962-12-01), Cirafesi
patent: 3173688 (1965-03-01), Green
patent: 3636811 (1972-01-01), Bailey
patent: 3962949 (1976-06-01), Trowbridge et al.
patent: 5149092 (1992-09-01), Parsons
patent: 5348297 (1994-09-01), Parsons

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