Fluid handling – Flow affected by fluid contact – energy field or coanda effect – Means to regulate or vary operation of device
Patent
1984-02-06
1985-09-17
Joyce, Harold
Fluid handling
Flow affected by fluid contact, energy field or coanda effect
Means to regulate or vary operation of device
49 91, 137601, E06B 7086
Patent
active
045413282
ABSTRACT:
In general, a sealing apparatus for substantially preventing the flow of air through a damper assembly having a plurality of movable vanes includes a first, rigid sealing member having a generally circular cross-section and adapted to be attached to a first edge of a first movable vane. The first edge is movable through a first arc between a damper-open position and a damper-closed position. A second resilient sealing member has a generally rectangular cross-section and is adapted to be attached to a second edge of a second movable vane. The second edge is movable through a second arc between the damper-open and damper-closed positions. The sealing members make substantially line contact one with the other as the edges are moved toward the damper-closed position and are in substantially gas flow-preventing area contact one with the other when the vanes are in the damper-closed position.
REFERENCES:
patent: 3084715 (1963-04-01), Scharres
patent: 3606245 (1971-09-01), Reichow et al.
patent: 3885347 (1975-05-01), Adachi et al.
patent: 4192098 (1980-03-01), Brzezinski
patent: 4256143 (1981-03-01), Magill et al.
Brzezinski Donald E.
Kadue Christy C.
Jochman, Jr. Joseph J.
Johnson Service Company
Joyce Harold
Ryan John P.
Shupe Larry L.
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