System for determining performance on an exercise rowing machine

Details System for determining performance on an exercise rowing machine System for determining performance on an exercise rowing machine

1988-11-07

1989-09-19

Crow, S. R.

Undertaking

272129, 272DIG5, 272DIG6, A63B 6906, A63B 2124

Patent

active

048674478

ABSTRACT:
An exercise rowing machine has swing-mounted rowing arms with chopper plates at their lower ends which have a series of light-passing ports arranged along an arc to swing through the gaps between the emitters and receivers of a pair of side-by-side light emitter/receiver units. A circuit containing these units is connected to a microprocessor programmed for outputs, such as length and duration of rowing arm strokes, using inputs from the emitter/receiver units.

REFERENCES:
patent: 1679631 (1928-08-01), Seagraves
patent: 3266801 (1966-08-01), Johnson
patent: 3848467 (1974-11-01), Flavell
patent: 4576377 (1986-03-01), Wolff
patent: 4601468 (1986-07-01), Bond et al.
patent: 4627610 (1986-12-01), Ishida et al.
patent: 4674741 (1987-06-01), Pasierb, Jr. et al.

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