Exercise devices – Gymnastic – Projector
Patent
1998-03-20
1999-09-07
Donnelly, Jerome
Exercise devices
Gymnastic
Projector
482 28, A63B 518
Patent
active
059478705
ABSTRACT:
An exercise and rehabilitation apparatus for skiers and athletes who need to maintain good endurance, balance, coordination, and strength in their legs is disclosed which allows for movement both horizontally and vertically while jumping side to side without jarring the back, knees, tendons, and joints, etc. The apparatus is composed of two or more rebounding bodies wherein the angle of inclination with respect to the base may be adjusted.
REFERENCES:
patent: 3339925 (1967-09-01), Nissen
patent: 3502330 (1970-03-01), Cheftel
patent: 4483531 (1984-11-01), Laseman et al.
patent: 4824100 (1989-04-01), Hall et al.
Bishop Lynn N.
Hall David Wayne
Donnelly Jerome
Phillips Delbert R.
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