Inventor
ROTUNDA JOHN T
US7 patents
Patents
7 patentsUS5856736AJan 5, 1999
Variable speed AC motor drive for treadmill
QUINTON INSTR98 citations96
US5290205AMar 1, 1994
D.C. treadmill speed change motor controller system
QUINTON INSTR147 citations96
US5747955AMay 5, 1998
Current sensing module for a variable speed AC motor drive for use with a treadmill
QUINTON INSTR71 citations94
US5650709AJul 22, 1997
Variable speed AC motor drive for treadmill
QUINTON INSTR56 citations94
US5545112AAug 13, 1996
D.C. treadmill speed change motor controller system
QUINTON INSTR89 citations94
US5489250AFeb 6, 1996
Treadmill deceleration system and method
QUINTON INSTR85 citations94
US5264864ANov 23, 1993
Chart recorder
QUINTON INSTR5 citations60