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Class Information
Number: 137/255
Name: Fluid handling > Plural tanks or compartments with parallel flow
Description: Apparatus having two or more tanks or compartments so connected that (1) fluid from the same or different sources is separately supplied to different tanks or compartments, and/or (2) the tanks or compartments discharge separate fluid flows externally of the system or to parts of the system other than one another.










Sub-classes under this class:

Class Number Class Name Patents
137/260 Battery or electrolytic cell replenishment 52
137/262 Flow dividing compartments 26
137/256 Sequentially filled and emptied (e.g., holding type) 60
137/263 Tank type manifold (i.e., one tank supplies or receives from at least two others) 62
137/264 Tank within tank 53
137/265 With cross connecting passage 54
137/259 With housings, supports or stacking arrangements 28
137/266 With manifold or grouped outlets 107


Patents under this class:
1 2 3

Patent Number Title Of Patent Date Issued
8557113 Cart and installation for treating biological liquid Oct. 15, 2013
8544494 System and method for controlling shutoff valves of compressed natural gas fuel tanks in a vehicle Oct. 1, 2013
8539972 Low consumption and intelligent safe gas-supply system using gas tanks Sep. 24, 2013
8539938 Fuel systems and methods for controlling fuel systems in a vehicle with multiple fuel tanks Sep. 24, 2013
8506783 Three-dimensional nanochannel device and method of manufacturing the same Aug. 13, 2013
8333177 Motor vehicle fuel system having multiple fuel tanks Dec. 18, 2012
8197988 Hydrogen supply system for fuel cell Jun. 12, 2012
8181667 GTank-C90 auxiliary fuel transfer system May. 22, 2012
8109286 Fuel tank including movable or deformable fuel chamber and waste chamber Feb. 7, 2012
8011317 Advanced mixing system for integrated tool having site-isolated reactors Sep. 6, 2011
7987877 Method for managing storage of gaseous hydrogen Aug. 2, 2011
7857939 Apparatus for treating wafers using supercritical fluid Dec. 28, 2010
7665479 Aerial refueling system Feb. 23, 2010
7645536 Fuel cell, fuel cartridge and fuel cell system Jan. 12, 2010
7426935 Method of discharging high pressure storage vessels Sep. 23, 2008
7367349 Method for opening tank shut-off valves in gas feeding systems with connected tanks May. 6, 2008
7367352 Multiway valve arrangement May. 6, 2008
7343924 System for supplying halogen gas or halogen containing gas and method thereof Mar. 18, 2008
7337794 Method and apparatus for the delivery of compressed gas in the field Mar. 4, 2008
7316242 Hydrogen storage system and method of operation thereof Jan. 8, 2008
7314056 Hydrogen supply method Jan. 1, 2008
7302958 Method and device for operating tank farm systems which are interconnected with pipes in a fixed manner and which have pipe systems for liquids Dec. 4, 2007
7287543 Hydraulic device Oct. 30, 2007
7222609 Fuel supply system May. 29, 2007
7201179 Modular fluid supply system Apr. 10, 2007
7189358 Integrated micropump analysis chip and method of making the same Mar. 13, 2007
7055543 Solenoid actuated control for fuel distribution in a dual fuel tank vehicle Jun. 6, 2006
7040340 Apparatus for the recycling of used water May. 9, 2006
7028671 Fuel return systems Apr. 18, 2006
6957668 Waste water disposal system Oct. 25, 2005
6929334 Caterpillar track tension management Aug. 16, 2005
6915815 Apparatus for storing and dispensing oil and gas well drilling fluids Jul. 12, 2005
6845782 Multiple tank circulating fuel system Jan. 25, 2005
6827099 Sealing method and apparatus for fluid container Dec. 7, 2004
6799562 System and method for balancing fuel levels in multiple fuel tank vehicles Oct. 5, 2004
6779550 Magnetic pulse welder pressure canister Aug. 24, 2004
6708718 High pressure gas supplying system Mar. 23, 2004
6666226 Series/parallel relief valve for use with aircraft gaseous oxygen system Dec. 23, 2003
6651701 Hydrogen storage apparatus and charging method therefor Nov. 25, 2003
6623248 System for conveying liquids without pulsing Sep. 23, 2003
6579372 Apparatus and method for depositing thin film on wafer using atomic layer deposition Jun. 17, 2003
6543484 Waste water disposal system Apr. 8, 2003
6435203 Apparatus and method for regenerating etchant solution containing metal compound Aug. 20, 2002
6405744 Auxiliary fuel tank system with on-board diagnostics Jun. 18, 2002
6386224 High level water supplying and distributing system May. 14, 2002
6382240 Apparatus for fuel tanker oveflow diversion and vapor separation May. 7, 2002
6371145 System and method for compressing a fluid Apr. 16, 2002
6354321 Storage container for cryogenic liquids Mar. 12, 2002
6305405 Valve for a tank and especially for a flow control arrangement having a plurality of fluid storage tanks Oct. 23, 2001
6279612 Auxiliary propane fuel tank system for vehicles Aug. 28, 2001

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