The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 14, 1994
Filed:
Jul. 08, 1993
James M Singleton, Allen, TX (US);
James A Mann, Richardson, TX (US);
JAS Manufacturing Co., Inc., Carrolton, TX (US);
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).