Undertaking
Patent
1990-04-05
1991-07-09
Apley, Richard J.
Undertaking
272131, 272132, 272DIG5, A63B 6916, A63B 2100, A63B 2304
Patent
active
050298461
ABSTRACT:
A control device which is provided on an upper end of an exercising apparatus includes a lever arm, and a cylinder which has a profile of hills. A belt which is provided around the wheel is controlled by a slidable engagement between the lever arm and the profile of the cylinder in order to gradually vary the frictional load on the wheel. When the belt is loosened, the frictional load on the wheel is decreased; and when the belt is tensioned, the frictional load on the wheel is increased.
REFERENCES:
patent: 2866343 (1958-12-01), Kovacs
patent: 4509743 (1985-04-01), Lie
patent: 4726503 (1988-02-01), Bowker
patent: 4894936 (1990-01-01), Van Heumen et al.
patent: 4934688 (1990-06-01), Lo
patent: 4934692 (1990-06-01), Owens
Apley Richard J.
Cheng Joe H.
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