Exercise device

Details Exercise device Exercise device

1986-09-11

1987-09-22

Friedman, Carl D.

Undertaking

272131, 272141, A63B 500

Patent

active

046950494

ABSTRACT:
First and second handles are rotatable about a common axis. A threaded shaft is secured to the first handle and a pair of nuts is engaged on the threaded shaft and rotate with the second handle. A compression spring between the nuts causes friction at the thread interface. To adjust friction, the handles are separated and then the nuts are rotated with respect to each other to adjust the spring compression.

REFERENCES:
patent: 3132861 (1964-05-01), Horney
patent: 3184234 (1965-05-01), Struble
patent: 3211453 (1965-10-01), Williams
patent: 3396967 (1968-08-01), Brown
patent: 4095789 (1978-06-01), Mueller
patent: 4634114 (1987-01-01), Garcia
patent: 4643417 (1987-02-01), Nieman

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