Aerobic exercise floor system

Details Aerobic exercise floor system Aerobic exercise floor system

1986-02-28

1989-04-11

Hafer, Robert A.

Undertaking

52480, 523098, A63J 300

Patent

active

048199320

ABSTRACT:
A resilient wood floor for aerobic exercise. The boards of the floor are free to pivot in tongue and groove joints. The wood is laid on a foam pad which will always yield during ordinary human exercises. The boards are held together by spring clips which lengthen when a load is applied to the boards, while holding the boards close together in a manner to prevent pinching.

REFERENCES:
patent: 1175316 (1916-03-01), Solon
patent: 2123409 (1938-07-01), Elmendorf
patent: 3271916 (1966-09-01), Omholt
patent: 3579941 (1971-05-01), Tibbals
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patent: 3684630 (1972-08-01), Sensenig et al.
patent: 3828503 (1974-08-01), Hofmann
patent: 4233793 (1980-11-01), Omholt
patent: 4274626 (1981-06-01), Grosser et al.
patent: 4290249 (1981-09-01), Mass
patent: 4350721 (1982-09-01), Nagase

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