Spring loaded exhalation valve

Details Spring loaded exhalation valve Spring loaded exhalation valve

1980-09-09

1981-11-03

Recla, Henry J.

Fluid handling

Line condition change responsive valves

Direct response valves

137535, 137542, 12820712, 12820615, F16K 1506

Patent

active

042980232

ABSTRACT:
An exhalation valve for inhalation therapy includes a base member provided with an exhalation port encircled by a valve seat for a valve closure disc, the center of which is connected to the inner end of a pin extending outwardly away from the disc and slidably mounted in a sleeve spaced from the disc. The sleeve is held rigidly by a support connected with the base member. A number of Constant-Force Compression coil springs extend between the sleeve and disc and are bowed outwardly away from the pin. The ends of the springs are connected with the sleeve and closure disc to urge the disc toward the valve seat. The springs exert a substantially constant pressure against the disc as it is moved outwardly away from the valve seat by air flowing out through the valve port.

REFERENCES:
patent: 1359631 (1920-11-01), Teed
patent: 1607324 (1926-11-01), Voss
patent: 2406888 (1946-09-01), Meidenbauer, Jr.
patent: 2547882 (1951-04-01), Norton

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