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US 7,611,447 B2Granted
Leg exercise device
OwnerVimala Sarmainventor
Life of this patent
Estimating the term…
Abstract
A foot and/or leg-exercising device (10) has a first sealed chamber (14) and a second sealed chamber (16) that are interconnected via one or more passageways (34). The chambers (14, 16) are of variable volume and fluid within one chamber may be pumped to the other chamber using the feet and/or legs. In one embodiment each foot is provided with a first chamber and a second chamber and fluid is pumped by a heel and toe rocking action of each foot. The chambers for both feet may be interconnected to allow pumping by an up and down action of the legs.
Claims19
A leg exercise device having:
- a rigid base;
- two first separately sealed variable volume chambers mounted on or partially defined by the base;
- two second separately sealed variable volume chambers mounted on or partially defined by the base;
- a volume of fluid less than the combined maximum volume of the first and second chambers being located in each pair of first and second chambers;
- two first surfaces, each sized and located to receive a respective first part of each of a user's feet and convey compressive force between the first part and a respective first chamber, and
- two second surfaces, each sized and located to receive a respective second part of each of a user's feet and convey compressive force between the second part and a respective second chamber, and
- a valve;
- at least one passageway interconnecting each of said chambers with said valve;
- said valve having first and second states, wherein:
- when in the first state the valve isolates first chambers from second chambers and links, via respective passageways, the first chamber provided for one foot with the first chamber provided for the other foot and links, via respective passageways, the second chamber provided for one foot with the second chamber provided for the other foot, and
- when in the second state the valve isolates chambers of one foot from the chambers of the other foot and links, via respective passageways, the first chamber provided for one foot with the second chamber provided for the one foot and, via respective passageways, links the first chamber provided for other foot with the second chamber provided for the other foot.
8 more elements
Dependencies are inferred from the claim text.