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Class Information
Number: 137/429
Name: Fluid handling > Liquid level responsive or maintaining systems > By float controlled valve > Rectilinearly traveling float
Description: Apparatus in which the float is guided or so constructed and mounted that its path of movement will necessarily be along a straight line.










Sub-classes under this class:

Class Number Class Name Patents
137/430 Float co-axial with valve or port 98


Patents under this class:
1 2

Patent Number Title Of Patent Date Issued
8631818 Vertical float valve assembly Jan. 21, 2014
8561842 Valve apparatus for selectively dispensing liquid from a plurality of sources Oct. 22, 2013
8424557 Downspout water diversion and overflow device and water collection and overflow system employing the same Apr. 23, 2013
8365758 Beverage barrel bladder system and apparatus Feb. 5, 2013
8307815 Crankcase ventilation filter assembly Nov. 13, 2012
8186376 Liquid purge valve May. 29, 2012
8122904 Anti siphon tank inlet Feb. 28, 2012
8057665 Cold water tank and water treatment apparatus having the same Nov. 15, 2011
8033291 Magnetically activated cut-off valve assembly Oct. 11, 2011
7931046 Steam trap with inverted bucket float Apr. 26, 2011
7597114 Venting device Oct. 6, 2009
7571739 Condensate removal device Aug. 11, 2009
7559337 Retractable float for a ballcock valve Jul. 14, 2009
6966334 Float valve for a christmas tree watering system Nov. 22, 2005
6895990 Water heater fail safe apparatus May. 24, 2005
6874529 Level limit valve Apr. 5, 2005
6679286 Ball tap with a water level switch Jan. 20, 2004
6619312 Flow control mechanism for an eaves trough downspout Sep. 16, 2003
6615863 Toilet fill valve tank isolation Sep. 9, 2003
6550488 Hyperwash dishwasher Apr. 22, 2003
6523562 Plumbing flood control system Feb. 25, 2003
6354326 Toilet fill valve with improved noise abatement Mar. 12, 2002
6253785 Automatic leak shutoff device Jul. 3, 2001
6202676 Magnetic liquid control for boiler feedwater receivers Mar. 20, 2001
5971009 Dual containment assembly Oct. 26, 1999
5937455 Electrically operated toilet water inlet valve system having a variable fill level Aug. 17, 1999
5887614 Overfill prevention device for storage tanks Mar. 30, 1999
5862830 Water replenishing plug for a battery containing a liquid electrolyte Jan. 26, 1999
5662460 Downhole pneumatic pump with variable bouyant actuator Sep. 2, 1997
5618410 Automatically draining vacuum apparatus Apr. 8, 1997
5567283 Caustic concentration regulator for chlorine generators Oct. 22, 1996
5544685 Fill controller for liquified gas container and apparatus for filling tank using same Aug. 13, 1996
5518024 Overfill prevention device for storage tanks May. 21, 1996
5456409 Method and device for maintaining a fluid at a working pressure in a substantially closed fluid circulation system Oct. 10, 1995
5406993 Safety tank apparatus for liquid storage Apr. 18, 1995
5365969 Float with skirt to prevent leakage due to oversudsing Nov. 22, 1994
5309937 Float valve for filling systems, in particular, for filling electric traction batteries May. 10, 1994
5309939 Safety device for water-conducting household appliances May. 10, 1994
5284191 Safety tank apparatus for liquid storage Feb. 8, 1994
5265656 Safety tank apparatus for liquid storage having fire resistant construction Nov. 30, 1993
5246045 Automatic refrigerant tank volume fill control apparatus Sep. 21, 1993
5146947 Condensate drainage for gaseous fuel fired condensation boilers Sep. 15, 1992
5137064 Safety tank apparatus for liquid storage Aug. 11, 1992
5090443 Fluid level control float valve Feb. 25, 1992
5072751 Valve assembly Dec. 17, 1991
5067517 Quantitative liquid level controlling device Nov. 26, 1991
5025827 Structure of fluid level controller of piping type Jun. 25, 1991
5018550 Dishwasher overfill protection device May. 28, 1991
5005615 Safety tank apparatus for liquid storage Apr. 9, 1991
4909274 Valve apparatus Mar. 20, 1990

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