03989240 is referenced by 23 patents and cites 5 patents.

A power exerciser having a frame, variable power motor, strap, strap grips and sequencing control. The motor causes horizontal pull and vertical lift body movements through use of the straps. The duration and extent of each movement can be controlled by electro-mechanical sequencing. The sequencing control is connected to the power motor for providing a preselected time sequence of instructions to the power motor for limiting the lengths of extension and retraction of the straps. A unit is provided for presetting the sequencing control the power motor during an exercise program.

Title
Electrically timed exercising device
Application Number
5/575088
Publication Number
3989240
Application Date
May 6, 1975
Publication Date
November 2, 1976
Inventor
Bernard J Victor Jr
122 Park Place, Pittsburgh, 15237
PA, US
Kenneth M Tudoverto
94 N. Euclid Ave., Pittsburgh, 15202
PA, US
Bernard J Victor
122 Park Place, Pittsburgh, 15237
PA, US
Agent
Buell Blenko & Ziesenheim
IPC
A63B 21/24
View Original Source