Flow regulator for air ducting

Details Flow regulator for air ducting Flow regulator for air ducting

1974-06-26

1976-12-14

Cline, William R.

Fluid handling

Line condition change responsive valves

Direct response valves

1375278, 251337, 251338, F16K 1502, F16K

Patent

active

039969614

ABSTRACT:
A flow regulator for air ducting comprises a flap which can be rotated about a shaft against the action of a spring, by the air current, to regulate air flow therepast. The flap has two portions which are disposed at an obtuse angle to each other about a bend line, one of the portions, in an open condition of the regulator, being directed downstream of the shaft generally parallel to the ducting axis, and is obliquely oriented in the closed condition and the other portion, in a closed condition of the regulator, is disposed in a plane lying at right angles to the ducting axis, and is obliquely oriented in the open condition. The obtuse angle of the flap portions is preferably of the order of 145.degree. to 155.degree..

REFERENCES:
patent: 386461 (1888-07-01), Goll
patent: 1082174 (1913-12-01), Rutherford
patent: 1105280 (1914-07-01), Kurtz
patent: 2278421 (1942-04-01), Brown
patent: 2859772 (1958-11-01), Weiss
patent: 3111142 (1963-11-01), Acosta
patent: 3187768 (1965-06-01), Waterfill

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