Patents by Inventor James M. Singleton

James M. Singleton 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 treadmill with grooved roller
    Patent number: 5431613
    Abstract: A treadmill which includes a generally rectangular frame defining a walking plane, said frame having laterally disposed parallel trending side rails (18); a drive roller, said drive roller having walls defining a hollow cylinder; a free roller (10), said free roller (10) having walls defining a hollow cylinder, the walls of said drive and said free rollers (10) each having an annular groove (38) in the outer walls (36) thereof, the groove (38) located closer to an end of said rollers (10) than the longitudinal center line of said frame; shaft (12) for mounting said rollers (10) between said rails (18) and in generally perpendicular relation; an endless belt (20) of flexible material having an outer walking surface and an inner surface, the inner surface having an inwardly projecting alignment ridge (44) mating with said grooves (38) of said rollers (10) to allow a substantially flush fit of said rollers (10) against said belt (20) and to prevent said endless belt (20) from wandering on said rollers (10).
    Type: Grant
    Filed: June 10, 1994
    Date of Patent: July 11, 1995
    Assignee: JAS Manufacturing Co., Inc.
    Inventors: James M. Singleton, James A. Mann
  • Exercise treadmill with grooved roller
    Patent number: 5320589
    Abstract: A treadmill which includes a generally rectangular frame defining a walking plane, said frame having laterally disposed parallel trending side rails (18); a drive roller, said drive roller having walls defining a hollow cylinder; a free roller (10), said free roller (10) having walls defining a hollow cylinder, the walls of said drive and said free rollers (10) each having an annular groove (38) in the outer walls (36) thereof, the groove (38) located closer to an end of said rollers (10) than the longitudinal center line of said frame; shaft (12) for mounting said rollers (10) between said rails (18) and in generally perpendicular relation; an endless belt (20) of flexible material having an outer walking surface and an inner surface, the inner surface having an inwardly projecting alignment ridge (44) mating with said grooves (38) of said rollers (10) to allow a substantially flush fit of said rollers (10) against said belt (20) and to prevent said endless belt (20) from wandering on said rollers (10).
    Type: Grant
    Filed: July 8, 1993
    Date of Patent: June 14, 1994
    Assignee: JAS Manufacturing Co., Inc.
    Inventors: James M. Singleton, James A. Mann
  • Exercise treadmill
    Patent number: D437900
    Type: Grant
    Filed: August 28, 1998
    Date of Patent: February 20, 2001
    Inventors: Eric R. Dick, Chris Goddard, Joseph M. Schuster, James M. Singleton, Michael C. Story, Jeffery J. Zimmerer