1
Gary D Stewart, Todd M Johnson, Patricia B Orman, Joseph W Lambright, Gary M Orman, Rodney E Schwartz: Computer controlled exercise machine. Universal Gym Equipment, Darby & Darby, September 26, 1989: US04869497 (72 worldwide citation)

A computer controlled exercise machine in which the user selects an exercise mode and its profile by programming the computer. Signals are produced by the program to control a resistive force producing device. Sensors produce data signals corresponding to the force applied to the actuating member of ...


2
Steven T Clauter, Gary M Orman, Fred Boatwright, Robert Gordon: Dual-mode power converter. Integrated Technology Corporation, Renner Otto Boisselle & Sklar P L L, October 8, 1996: US05563781 (23 worldwide citation)

An efficient off-line rectified, high-power, AC-to-DC power supply is provided. High-power factor and minimal circuit size, cost, and complexity are achieved by combining switchmode power converter operation as well as conduction-mode operation. The switchmode power converter is controlled such that ...


3
Gary M Orman, Rodney E Schwartz, Gary C Jorgensen: Torque sensor. Darby & Darby, November 22, 1988: US04785674 (23 worldwide citation)

An arrangement for sensing rotational torque in an exercise machine utilizes a torque measuring collar, which is generally tubular with a flange at each end. One flange is mounted to a stationary member, such as the frame of a machine. A shaft which is to rotate when the force is applied extends thr ...


4
Rodney E Schwartz, Steven T Clauter, Gary M Orman: Apparatus for providing controlled mechanical braking torque. Integrated Technology Corporation, Renner Otto Boisselle & Sklar, August 15, 1995: US05442276 (9 worldwide citation)

Apparatus and method for electrically generating mechanical braking torque employs direct field drive incorporating an AC alternator plus a current regulator. The stator windings of the alternator are directly coupled to the field winding via a full wave rectifier and the current regulator. The inve ...