Incentive spirometer

Details Incentive spirometer Incentive spirometer

1983-10-13

1986-06-17

Howell, Kyle L.

Undertaking

128721, A63B 2300, A61B 508

Patent

active

045951969

ABSTRACT:
A deep breathing exercise device includes a belt member to be positioned around the lower chest wall, with the belt ends joined by a plastic case, one end of the belt being mounted to the case by a negatively-variable-resistance leaf spring permitting limited withdrawal of the belt end from within the case, the case having a plurality of LEDs and a chime to indicate movement of the belt from within the case as the circumferential length of the belt system increases in response to an inhaling motion of the wearer.

REFERENCES:
patent: 443204 (1890-12-01), Davis
patent: 1055267 (1913-03-01), Gibson
patent: 1074846 (1913-10-01), Dickman
patent: 1134320 (1915-04-01), Drew
patent: 2428980 (1947-10-01), McCann
patent: 2541562 (1951-02-01), Villarreal
patent: 3097639 (1963-07-01), Streimer
patent: 3268845 (1966-08-01), Whitmore
patent: 3483861 (1969-12-01), Tiep
patent: 3782368 (1974-01-01), Reibold

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