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US 4,505,474 AGranted
Weighted elastomeric jumping device
OwnerErnest M. Mattoxinventor
Life of this patent
Estimating the term…
Abstract
An exercise device that includes a pair of handles joined by an elongated flexible tube. The flexible tube includes a weighting material and the tube is formed from a longitudinally resilient elastomeric material so that as the exercise device is turned about a person, a variable moment arm is produced between the center of gravity of the weighting material and the handles.
Claims18
An exercise device, comprising:
- a pair of spaced handles;
- an elongated, flexible cord joined to said handles, said flexible cord being resiliently elongatable at least in the regions adjacent said handles as said flexible cord is revolved around a person, said flexible cord comprising a hollow, resilient elastomeric cord extending between said handles;
- a tubular sleeve received around at least a portion of said flexible cord, said sleeve being relatively freely rotatable about said flexible cord;
- each said handle comprising a cylindrical plug received within and enveloped by one end of said elastomeric cord;
- and
- means for weighting said flexible cord, said weighting material being a granular material located within said flexible cord so as to be shiftable therein, whereby as said exercise device is revolved around a user said elongatable, flexible cord forms a variable moment arm between the center of gravity of said weighting means and said handles.
3 more elements
An exercise device, comprising:
- a pair of spaced handles;
- an elongated, flexible cord joined to said handles, said flexible cord being resiliently elongatable at least in the regions adjacent said handles as said flexible cord is revolved around a person, said flexible cord being made from a longitudinally resilient, elastomeric polymeric material at least in said regions adjacent said handles;
- and
- means for weighting said flexible cord, whereby as said exercise device is revolved around a user said elongatable, flexible cord form a variable moment arm between the center of gravity of said weighting means and said handles.
1 more element
An exercise device, comprising:
- a pair of spaced handles;
- an elongated, hollow, flexible member having two ends, each said end secured to one of said handles;
- a mass of particulate weighting material at least partially filling said flexible member, said weighting material having a specific weight greater than the specific weight of said flexible member;
- and
- said flexible member being elastomeric at least in the regions adjacent said handles, said elastomeric regions having a resiliency such that said weighting material causes said elastomeric regions to elongate as said flexible member is pivoted about a user, whereby said elastomeric regions form a variable moment arm between the center of gravity of said weighting material and said handle.
2 more elements
An exercise device, comprising:
- a hollow, elongated flexible tube;
- particulate weighting material slidably received within said flexible tube;
- a handle secured to each end of said flexible tube;
- means for closing each end of said flexible tube and for confining said particulate weighting material within said flexible tube;
- and
- said flexible tube being formed from a longitudinally resilient elastomeric material, whereby as said flexible tube is turned about a user said flexible tube elongates and said particulate weighting material shifts within said tube to provide a variable moment arm between the center of gravity of said weighting material and said handles.
3 more elements
Dependencies are inferred from the claim text.