Exercise devices – User manipulated force resisting apparatus – component... – Utilizing fluid resistance
Patent
1995-05-31
1996-11-12
Reichard, Lynne A.
Exercise devices
User manipulated force resisting apparatus, component...
Utilizing fluid resistance
482132, 482142, 482130, 482907, A63B 21008
Patent
active
055734855
ABSTRACT:
The disclosed exercise apparatus manipulates the back in a manner intended to strengthen back muscles and maintain spine flexibility. Adjacent arrays of rollers are mounted on a frame in a manner that allows the arrays of rollers to be secured in a first position relative to one another, wherein adjacent pairs of rollers are coaxially aligned, and in a second position relative to one another, wherein adjacent pairs of rollers are out of alignment.
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patent: 4302005 (1981-11-01), Silberman
patent: 4768779 (1988-09-01), Oehman, Jr. et al.
patent: 5147259 (1992-09-01), Hutchins
patent: 5324247 (1994-06-01), Lepley
patent: 5393286 (1995-02-01), Cheng
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