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Primary Examiner: Apley, Richard J.
Assistant Examiner:
Attorney: Watson, Cole, Grindle & Watson

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Title: Entertainment and exercise device

Abstract: The present invention provides an entertainment and exercise device comprising an open-topped body formed of at least one body-forming wall, the body-forming wall forming a rounded bottom pivot point and extending upwardly and tapering outwardly therefrom and having a generally elliptical configuration, and a top portion which forms an angle with the vertical axis of the elliptically shaped portion greater than the angle formed by the elliptical portion.


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Inventors: Risberg, Jr., Carl

Application Number: 600452
Filing Date: 1975-07-30
Publication_date: 1978-02-28
Assignee:
Primary Class(es): 472/26 472/40, 472/135
Other Classes:
US Patent Ref:
1656637Jan, 1928Hudson272/33.
2199915May, 1940Howard272/33.
2471528May, 1949Kling272/33.
2615495Oct, 1952Hilliker272/33.
2804123Aug, 1957Kling272/33.
2878858Mar, 1959Winchester272/33.
3083979Apr, 1963Boyd272/115.
3145990Aug, 1964Prouty272/33.
3380735Apr, 1968Rigby272/33.
3460828Aug, 1969Curlee272/33.
3477713Nov, 1969Cudmore272/33.
3586321Jun, 1971Gehrke272/146.
3612520Oct, 1971Chang272/146.

Other Refs: 654,569
Dec, 1962CA
Other References: "Popular Mechanics", Feb. 1962, p. 137.