High performance damper blade and damper seal combination

Details High performance damper blade and damper seal combination High performance damper blade and damper seal combination

1990-11-09

1991-07-09

Rivell, John

Valves and valve actuation

Pivoted valves

Terminal

251364, 98110, F16K 118, F16K 142

Patent

active

050298100

ABSTRACT:
A high performance damper blade and damper blade seal combination including a damper blade having a planar portion perpendicular to the damper blade and a damper blade seal including a base and two upwardly extending legs. One leg of the damper blade seal contacts the damper blade body, while the other leg of the damper blade seal contacts the outside edge of the perpendicular tip portion of the damper blade. The tip of the perpendicular damper blade portion contacts the base of the damper blade seal for providing a third point of contact between the damper blade and the damper seal to ensure minimum airflow through the damper blade and end seal when the damper blade is in the closed position. Furthermore, the leg of the damper seal which contacts the outer side of the blade tip portion operates advantageously as a wind break to prevent leakage through the damper blade and seal combination due to wind gusts when the damper blade and seal are employed on air handler units or air conditioning systems.

REFERENCES:
patent: 1272460 (1918-07-01), Knoll
patent: 1690368 (1928-11-01), Grapp
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patent: 3312242 (1967-04-01), Kahn et al.
patent: 3426653 (1969-02-01), Kawamura
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patent: 3581650 (1971-06-01), McCabe
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patent: 3605603 (1971-09-01), McCabe
patent: 3653317 (1972-04-01), Costanzo, Jr.
patent: 3682084 (1972-08-01), Tarnoff
patent: 3832940 (1974-09-01), Hess
patent: 4193605 (1980-03-01), Josephson
patent: 4766807 (1988-08-01), Davis

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