Patents by Inventor Donald C. Early

Donald C. Early has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Exercise device having adjustable resistance force
    Patent number: 8777821
    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.
    Type: Grant
    Filed: July 27, 2011
    Date of Patent: July 15, 2014
    Inventors: Paul F Lando, Kent D Russell, Donald C Early
  • EXERCISE DEVICE HAVING ADJUSTABLE RESISTANCE FORCE
    Publication number: 20130029811
    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.
    Type: Application
    Filed: July 27, 2011
    Publication date: January 31, 2013
    Inventors: PAUL F. LANDO, Kent D. Russell, Donald C. Early