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Class Information
Number: 138/45
Name: Pipes and tubular conduits > With flow regulators and/or baffles > Restrictors > Central path > Variable restriction
Description: Devices wherein the restrictor is adjustable to vary the restriction.










Patents under this class:
1 2 3 4 5 6 7 8

Patent Number Title Of Patent Date Issued
8701715 Flow check valve assembly and method Apr. 22, 2014
8651143 Device for shutting a jettisoning circuit of an aircraft Feb. 18, 2014
8651142 Flow modulating device Feb. 18, 2014
8607819 Water saving device and method of using same Dec. 17, 2013
8573243 Fluid delivery device and method Nov. 5, 2013
8567445 Water flow restriction device and method Oct. 29, 2013
8567446 Flow check valve assembly and method Oct. 29, 2013
8387950 Flow device and method and system using the flow device Mar. 5, 2013
8365967 Pressure-activated valve Feb. 5, 2013
8348227 Flow-volume regulator Jan. 8, 2013
8302392 Exhaust control device for vehicle engine Nov. 6, 2012
8277116 Fluidic mixer with controllable mixing Oct. 2, 2012
8277548 Combined exhaust gas aftertreatment/air cleaner dust and ejector unit Oct. 2, 2012
8251100 Needle-type stepped cylindrical stopper for automatic control of water consumption in pipelines Aug. 28, 2012
8230884 Control valve with profiled packing element Jul. 31, 2012
8196610 Controlling cooling fluid flow in a cooling system with a variable orifice Jun. 12, 2012
8167002 Flow restrictor May. 1, 2012
8132783 Dynamic orifice valve apparatus and method Mar. 13, 2012
8122911 Adjustable orifice for coal supply conduit Feb. 28, 2012
8122912 Gas flow restrictor Feb. 28, 2012
8118062 Pleated washer spring for fuel pressure regulator Feb. 21, 2012
8091587 Tamper-resistant water flow restriction system Jan. 10, 2012
8079386 Variable pressure reducing device Dec. 20, 2011
8070708 Device and method for controlling in-vivo pressure Dec. 6, 2011
8056582 System of stepped flow rate regulation using compressible members Nov. 15, 2011
8011390 Regulating device and methods of using same Sep. 6, 2011
8002040 System and method for controlling flow in a wellbore Aug. 23, 2011
7987872 Diaphragm for throttling a volume flow in an air distribution ducting system of an air-conditioning unit of a commercial aircraft Aug. 2, 2011
7955408 Device with no emission for treatment of exhaust gas Jun. 7, 2011
7875109 Integral flow restrictor valve Jan. 25, 2011
7870872 Controlling cooling fluid flow in a cooling system with a variable inline nozzle Jan. 18, 2011
7841365 Apparatus for controlling flow through a conduit Nov. 30, 2010
7810784 Roller clamp Oct. 12, 2010
7775242 Solid state regulator for natural gas Aug. 17, 2010
7686590 Vacuum control system Mar. 30, 2010
7665198 Method of reducing noise for a modular fuel injector with a harmonic annular damper member Feb. 23, 2010
7575058 Incremental annular choke Aug. 18, 2009
7565918 Variable orifice rotary control valve Jul. 28, 2009
7556064 Apparatus and method for controlling the filling and emptying of a fluid container Jul. 7, 2009
7543763 Water volume control device for shower head Jun. 9, 2009
7527075 Flow Regulator May. 5, 2009
7497234 Storm water flow restriction method and apparatus Mar. 3, 2009
7484532 Flexible-film expandable gate Feb. 3, 2009
7422028 Apparatus for controlling and metering fluid flow Sep. 9, 2008
7399169 Compressor Jul. 15, 2008
7370675 Flow conditioner for a fluid transport pipe May. 13, 2008
7363940 Flow-rate restrictor insert for orifice expansion device Apr. 29, 2008
7306170 Lawn sprinkler flow control device and tool therefor Dec. 11, 2007
7293910 Surge suppressor for a mixer head assembly Nov. 13, 2007
7290567 Refrigerating cycle device, air conditioner, choke, and flow rate controller Nov. 6, 2007

1 2 3 4 5 6 7 8










 
 
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