Patent · US Active

Exercise device having adjustable resistance force

US8777821B2 · kind B2 · utility

10Cited by

29References

3Claims

0Family size

Inventors

Paul Lando · Red Lion, US
Kent D. Russell · Jacobus, US
Donald C Early · Craley, US

Key dates

Filing date	Jul 27, 2011
Grant date	Jul 15, 2014
Priority date	—
Expiry date	Jul 30, 2032

Classification

Technology area (CPC A)Human Necessities
CPC primaryA63B23/1272
WIPO fieldFurniture, games
WIPO sectorOther fields

Abstract

An exercise device for exercising hand, wrist, arm, and upper body muscles having adjustable force resistance and a force setting indicator. The exercise device includes a housing, a first handle connected to one end of the housing, a second handle connected to the opposite end of the housing, an inner spring disposed inside the housing, and an outer spring disposed inside the housing. The outer spring is connected to the inner spring and encases the inner spring. An adjuster knob disposed on the second handle and coupled to the inner spring and configured to adjust a tension of the inner spring and compression of the outer spring.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.