Abdominal exercise device

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Details

272 76, 273 58C, A63B 6900, A63B 6920

Patent

active

042575893

ABSTRACT:
A method and apparatus of using a conventional bowling ball for toughening up a person's stomach muscles comprises obtaining a medium weight bowling ball of conventional type, making a small bore hole therein, attaching an adjusting component to the ball by using the small bore hole, attaching one end of a suspension cord to the adjusting component and attaching the other end of the suspension cord to an overhead structure by means of an eye, hook, or clamp attachment mountable on a doorframe or the like, and then pushing the ball away from a person's body and allowing it to swing smartly back against one's stomach. The adjustment component attached to the ball may be an eye with the lower end of the suspension cord tied thereto, or may be a handle and cleat adjustment structure affixed to the ball. With the latter, the height of the ball can be readily adjusted to a given person's stomach height by winding or unwinding the suspension cord around the cleats.

REFERENCES:
patent: 735132 (1903-08-01), McCutchen
patent: 773167 (1904-10-01), Spink
patent: 2319917 (1943-05-01), Bruneau
patent: 2634977 (1953-04-01), Hunter
patent: 2670204 (1954-02-01), Powell
patent: 4077624 (1978-03-01), Feaser

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