Games using tangible projectile – Playing field or court game; game element or accessory... – Practice or training device
Patent
1997-03-04
1999-06-22
Grieb, William H.
Games using tangible projectile
Playing field or court game; game element or accessory...
Practice or training device
473417, 473459, A63B 6900
Patent
active
059137398
ABSTRACT:
A device for practicing striking a standard sports ball that also has means to be held against gravity and released upon sufficient impact. A ball contains means for both retaining and releasing itself from a mating pivotable, attachment arm that is generally downwardly supported to allow the ball to be suspended above the ground, be struck, released and propelled in a preferred downward trajectory, e.g. a volleyball spike. The ball is usually retained on a minor portion of the upper 75 percent (relative to vertical) of the outer surface of the suspended ball so that its propelled trajectory and the striker's path are essentially not hindered before, during and after the strike and release.
REFERENCES:
patent: 3397885 (1968-08-01), Nash, Jr.
patent: 3897950 (1975-08-01), Keller
patent: 4022471 (1977-05-01), Keller
patent: 4161313 (1979-07-01), Dickey
patent: 4352494 (1982-10-01), Wells
patent: 4798390 (1989-01-01), Dooley
patent: 4881742 (1989-11-01), Hargreave
patent: 4948150 (1990-08-01), Daly, Jr. et al.
patent: 5566949 (1996-10-01), Gorden
patent: 5588655 (1996-12-01), Slupskiy
Brochure from Rip Tide Volleyball, Inc. The Hoop Spike.
Brochure from AA1, Training Products for The Ultimate Circuit, p. 14.
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