Fluid handling – With cleaner – lubrication added to fluid or liquid sealing... – Cleaning or steam sterilizing
Patent
1978-07-12
1981-03-03
Rosenthal, Arnold
Fluid handling
With cleaner, lubrication added to fluid or liquid sealing...
Cleaning or steam sterilizing
251134, 251327, 251329, F16K 302, F16K 2504
Patent
active
042534836
ABSTRACT:
In a damper having an opening therethrough, an aperture defining blade member is movable between a first position, in which the aperture is aligned with the opening to permit the flow of fluid through the damper, and a second position, in which the blade member substantially blocks the flow of fluid through the damper opening. A sealing member is located around the periphery of the opening adjacent the blade member to substantially abut the blade member in both the first and second blade positions. A pressurized fluid such as air is supplied to the sealing member to promote flow of fluid between the sealing member and the blade member into the opening, and thereby substantially to prevent the leakage of fluid out of the opening between the blade member and the sealing member.
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Barron Industries, Inc.
Rosenthal Arnold
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