Class 137/601.05 - Rotary valve

Subclass of Class 137 - Fluid handling
Definition: Subject matter wherein at least one flow regulating means
No. of patents: 25
Last issue date: 07/25/2006

Number	Title	Issue Date
7080510	Exhaust gas sealing system for turbocharger An exhaust gas sealing system for a turbocharger includes a control valve for controlling a flow of an exhaust gas in a turbine housing, a shaft extending to an outside of the turbine housing through a bearing bore provided on the turbine housing, one end of the sha...	07/25/2006
6968702	Nozzle bolting arrangement for a turbine A radial flow turbine including a rotor having a plurality of vanes defining an inlet, an outlet, and a flow path therebetween. A shroud is positioned to cover at least a portion of the flow path and a housing is positioned to at least partially support the rotor fo...	11/29/2005
6962167	Choke valve A choke valve having a coarse setting choke means and a fine setting choke means placed in parallel to it. The coarse setting choke means is able to be switched over in stages between different degrees of choking with different choke cross sections. The fine setting...	11/08/2005
6880572	Exhaust gas control valve, apparatus and method of controlling exhaust gas flow The present invention is directed to an exhaust gas control (EGC) valve. The EGC valve comprises a valve housing having at least one inlet port, at least one outlet port, and a flow channel having a centerline extending between the ports. A valve seat is adjacent an...	04/19/2005
6719001	Fluid-directing multiport rotary valve A rotary valve for directing fluid streams which has a circular stationary head having at least one and desirably multiple primary ports for connection with fluid streams at least one secondary port. The stationary head includes a number of first circular concentric...	04/13/2004
6431202	Fluid-directing multiport rotary valve A rotary valve for directing fluid streams which has a circular stationary head having at least one and desirably multiple primary ports for connection with fluid streams at least one secondary port. The stationary head includes a number of first circular...	08/13/2002
6330891	Double-damper apparatus In a double-damper apparatus 1 including a driving portion (2), two frame portions (3 and 4) arranged on both sides of the driving portion, and two open/close members (5 and 6) which are coupled with the driving portion (2) and perform the operation of op...	12/18/2001
6048171	Bleed valve system The invention is a valve system particularly useful as a bleed valve system in a gas turbine engine. The valve system includes a valve ring or partition (44) that bounds a plenum (52). The valve ring has a set of two or more fluid flow regulating aperture...	04/11/2000
5394339	Apparatus for analyzing oil well production fluid An improved apparatus and method for analyzing oil well production fluid that includes a flow pipe through which production fluid normally flows, a test pipe defining an elongate vertical test chamber, valves to selectively intermittently bypass fluid flo...	02/28/1995
5167252	High temperature control damper with sealing flange A high temperature control damper for use in an air flotation dryer with built-in afterburner or any other high temperature environment. Two damper blades are mounted between high temperature bearings and rotate in an insulated housing. The inner ends of ...	12/01/1992
4893698	Exhaust brake unit equipped with a pair of swing flap valves An exhaust brake unit comprises a case to be inserted into an exhaust gas line, a valve seat located inside the case so as to encircle an exhaust gas passage, a pair of cavities formed on opposite side walls along the exhaust gas passage, a pair of shafts...	01/16/1990
4643081	Louver system with adjustable slats, featuring removable modular slat clips The louver system disclosed is of a basic type with adjustable-angle slats arranged between two uprights (1) provided with holes in which swivel mounts (3) are located for the receipt of clips (5) to which the slats (4) are fitted. The single clip (5) is ...	02/17/1987
4628954	Multi-use damper An air damper having a housing, a strut mounted across the housing, a pair of damper panels hinged on the strut, and swingable between open and closed positions, an adjustable control above the strut, and, linkage on the upper side of each panel extending...	12/16/1986
4546606	Pressure drop regulating device The control device comprises at least one control ring to which one end of n elbow lever is articulated. The vane pivot of alternating vanes is fixed at the intersection of the arms of the elbow levers. The other end of each elbow lever is connected by a r...	10/15/1985
4525623	Hair-drier with valves for controlling the air flow A hair-drier including a tubular housing having an air outlet is provided with two valve members pivotally mounted in the housing for controlling the flow of air therethrough. An opening is formed in the wall of the housing; and a rotatable member extends...	06/25/1985
4438049	Carburetor engine idle speed air bypass An automotive type carburetor is provided with an air bypass channel routing idle speed air flow around the closed throttle valve; the bypass channel containing a spring closed poppet valve having an adjustable volume internal channel connecting air to op...	03/20/1984
4377181	High temperature dual butterfly valve A large, high temperature, cost-effective butterfly valve with provisions for simple internal inspection and repair through a transverse access opening that is substantially smaller than the valve seat opening and which is repairable without necessitating...	03/22/1983
4312381	Air flow damping system A control device for a triple-plenum air conditioning apparatus having a by-pass air duct, a hot air duct and a cold air duct. A first shaft mounted through the by-pass and hot air ducts carries a first by-pass air damper blade and a hot air damper blade ...	01/26/1982
4250917	Air flow reverser system An air flow reverser apparatus for use in association with an air flow system having air supply and return port means, said apparatus comprising a main supply duct, and a main return duct, said ducts being connectable to said respective supply and return ...	02/17/1981
4219185	Rotating blade fire damper A fire, smoke and air control damper is disclosed wherein one or more hook-shaped hinge portions formed intermediate between the longitudinal edges of each damper blade engage complementally configured hook-shaped hinge elements formed on opposite sides o...	08/26/1980
4081173	Rotating blade fire damper A novel fire, smoke and air control damper is disclosed wherein one or more hook-shaped hinge portions formed intermediate between the longitudinal edges of each damper blade engage complementally configured hook-shaped hinge elements formed on opposite s...	03/28/1978
4080978	Smoke, fire and air control damper A rotating blade, smoke, fire and air control damper with spring closures attached on both inside and outside surfaces of the blades is disclosed. The spring closures cooperate with a bimetallic heat sensing device to trigger the closing of the blades at ...	03/28/1978
3994335	Multizone air conditioning system In a multizone air control system employing constant flows of hot and cold air, the hot or cold air is variably mixed with recirculated air to provide zone temperature control....	11/30/1976
3942422	Roof ventilator A roof ventilator comprising a pipe provided with an opening therein, a shutter means adapted to be raised above or lowered over said opening, a supporting arm associated with a rotating shaft which is rotatably disposed within said pipe, a fan means hous...	03/09/1976
3938430	Air vents An air register of molded plastic material comprising a basic framework with slotted air openings, a pair of vanes journaled in the frame with means for opening and closing the vanes for the passage of a selected volume of air through the register; a pair...	02/17/1976

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Class 137/601.05 - Rotary valve