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5944506 |
Burner assembly with tight shut-off opposed louver air damper
An opposed louver air damper apparatus for controlling the flow rate of combustion air to a burner fire box, comprising a plurality of adjacent, rotatable louvers having rubber tips and side...
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5918632 |
Single-louver damper with double seal
A louver damper device for the control of fluid flow within a conduit. The louver damper device includes one or more louvers, wherein each louver is a single-walled pivotable unit. The ends of...
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5765592 |
Valve
A valve body having a circular throat and three vanes mounted for rotation within the circular throat of the valve body. The three vanes comprise two outlying vanes, each having two opposed...
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5060557 |
Smoke damper blade seal
A smoke damper which includes a rectangular frame and blades mounted in the frame such moveable between a position in which all of the blades are essentially coplanar with adjacent edges of...
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4932437 |
Louver dampers for use in gas turbines exhaust systems and having blades protected against becoming warped
Louver dampers for use in the exhaust system of gas turbines have flat blades each of which is provided with a lengthwise reinforcement spaced from the major portion of its face which is upstream...
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4823836 |
Dampers with leaf spring seals
A leaf spring seal to effect sealing contact between such members as a damper blade and a frame consists of a set of leaf springs having their inner portions held together by clamping components of...
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4766807 |
Damper blade seal
A rectangular damper blade rotates about its longitudinal center line between an open and closed position to control the airflow entering an enclosure. Two longitudinal edges of the damper blade...
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4664145 |
Device for delivering a pressurized medium to a rotatable part
A liquid feed device for conducting a pressurized medium from a stationary housing to a rotatable component is so constructed that the applied force of a sealing surface of a sliding shoe of the...
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4545566 |
Metal seals for damper blades
There is disclosed metal seals for damper blades, preferably made of sheet metal, as well as the combination of the blade with the metal seal. The damper blade is pivotably mountable and has...
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4493342 |
Double louver damper
A double louver damper for use in a duct system conveying hot gases and particles in order to permit safe entry to be made therein when servicing is required has a frame to be incorporated in the...
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4469132 |
Damper apparatus
A damper assembly for controlling the flow of fluid through a passageway is disclosed. The damper assembly comprises a rectangular frame (22) adapted to be fitted in a passageway. A plurality of...
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4256143 |
Shut-off damper
A shut-off damper comprising a line of blades which are supported in a surrounding frame for rotary motion about substantially parallel axes to open or close an opening in the frame, and springy...
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4253492 |
System for controlling the flow of gaseous fluids
A duct, presumably that of a utility boiler or the like, has a frame mounted on its internal walls. Parallel louver blades are mounted in the frame and linked for simultaneous actuation to move the...
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4249571 |
Air control mechanism having noise suppression means
The invention provides an airflow control mechanism for use in an air duct for controlling airflow through the duct. The air flow control mechanism includes a frame positionable in the duct, and a...
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4199898 |
Closure apparatus with snap-in seal strips
A snap-in metal strip, longitudinally bent into a V shape with the upper ends of both arms of the V being turned outward to the horizontal, thus creating longitudinal lips on the strip, is used to...
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4187878 |
Valve having internally pressurized sealing elements
Disclosed is a valve especially adapted for the control of gases in large cross sectional ducts, flues, chimneys and the like. The valve comprises a plurality of elongated, vane-like closures...
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4175582 |
Isolating/pressure relief damper
Described herein is a damper for controlling the passage of hot gases through a duct. The damper has a frame through which are passages. Along these passages coolant is passed to cool the frame and...
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4077432 |
Purged valve
A valve assembly having a frame with a fluid flow opening therethrough; at least one blade mounted in the frame opening to be movable from a valve open position, in which fluid is able to flow...
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4043258 |
Louver linkage seal
A plurality of linkage seals are provided in an air distribution vent having a plurality of movable louvers for directing an air stream. A common linkage connects the louvers together for...
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3885347 |
Damper wind stop and blade seal design
A damper assembly including a frame, and a plurality of blades carried by the frame which are movable between open and closed positions. Each blade is roll-formed of light weight sheet metal, and...
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3832940 |
LOUVER UNIT HAVING A FIRE RESISTANT SEAL
A louver unit which closes to prevent passage of smoke through air ducts, provided with a fire resistant seal that does not deteriorate at high temperatures. The louver unit includes a housing...
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3698429 |
GAS TIGHT ISOLATORS AND VALVES
A cantilever seal for an isolator or valve comprises a cantilever leaf spring and a bias spring acting on the leaf spring to tension the leaf spring when in a free position, the bias spring being...
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3547152 |
PRESSURE SEALED DAMPER
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3332441 |
Wicket gate end seals
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3312242 |
Damper construction
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3275031 |
Dampers and seal means therefor
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3241568 |
Valve and operating mechanism therefor
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3176715 |
Louver type damper
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3084715 |
Damper assembly and blade construction
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3014496 |
Air conditioning apparatus for the induction type
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2948291 |
Jet power launching system
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3606245 |
Title is not available
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