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Class Information
Number: 137/272
Name: Fluid handling > Hydrant type
Description: Fluid distributors characterized by a vertical delivery riser with a valve at the bottom, to avoid freezing when installed below the frost line, and an extended actuator for the valve, usually for actuating the valve from a point adjacent the outlet from the riser or an extension thereof.










Sub-classes under this class:

Class Number Class Name Patents
137/289 Balanced valve 2
137/281 Expansible chamber operated by valve actuator for draining riser 15
137/286 Movable riser actuated valve 2
137/280 Plural riser 0
137/301 Protection against freezing 66
137/283 Removable valve and valve seat 13
137/285 Removable valve with supplemental check valve 4
137/290 Valve actuator extends laterally from bottom of riser 0
137/291 Valve actuator outside riser 8
137/273 Water crane type 0
137/298 With actuator lubricating means 5
137/294 With casing 12
137/282 With pump or ejector 12
137/300 With supplemental valve 11
137/299 With valve at outlet 17


Patents under this class:

Patent Number Title Of Patent Date Issued
7780013 Fire department connection with debris filter Aug. 24, 2010
7753065 Hydrant backflow restriction system Jul. 13, 2010
7650900 System to support and service yard hydrants Jan. 26, 2010
7597113 Adaptable water connection for fire fighting equipment and connection device Oct. 6, 2009
7588049 Polymeric fire hydrant Sep. 15, 2009
7575017 Wet barrel fire hydrant system with second valve Aug. 18, 2009
7516751 Wet barrel fire hydrant flow preventer Apr. 14, 2009
7509970 Adaptable water connection for fire fighting equipment and connection device Mar. 31, 2009
7478645 Hot and cold hydrant with swivel outlet Jan. 20, 2009
7428910 Breathable fire hydrant rod Sep. 30, 2008
7401620 Yard hydrant with drain port check valve Jul. 22, 2008
7267136 Wet barrel fire hydrant flow preventer Sep. 11, 2007
7228868 Fire hydrant system Jun. 12, 2007
7174911 Fire hydrant with second valve Feb. 13, 2007
7128083 Wet barrel fire hydrant flow preventer Oct. 31, 2006
7093610 Outdoor hydrant-type water faucet Aug. 22, 2006
7059266 Reflective warning and locator collar for hydrants, pylons and support posts Jun. 13, 2006
7021327 Hydrant valve access system Apr. 4, 2006
D504546 Canine relief station having watering outlet with internal water reservoir Apr. 26, 2005
6868860 Fire hydrant with second valve Mar. 22, 2005
6816072 Fire hydrant anti-tamper device Nov. 9, 2004
6698447 Hydrant monument Mar. 2, 2004
6467498 City water flushing and sludge prevention control method Oct. 22, 2002
6170514 City water flushing and sludge prevention control apparatus Jan. 9, 2001
6095174 Portable fire hydrant Aug. 1, 2000
6058957 Water saver fire hydrant May. 9, 2000
5924437 External shutoff valve for fire hydrants Jul. 20, 1999
5901738 Portable fire hydrant May. 11, 1999
5810044 Fluid control system Sep. 22, 1998
5775358 Indicator for compressed gas cartridge Jul. 7, 1998
5769112 Support system for fire hydrant installation Jun. 23, 1998
5622202 Tamper proof fire hydrant Apr. 22, 1997
5404899 Catchment device for machine parts and tools Apr. 11, 1995
5287880 Three-way fire hydrant Feb. 22, 1994
5201338 System and device for flushing water mains Apr. 13, 1993
5121772 Wet barrel fire hydrant with improved flow capability Jun. 16, 1992
5082013 Firefighting water delivery system and method Jan. 21, 1992
4805862 Harness for supporting a meter on a fire hydrant and the combination of a meter, fire hydrant and harness Feb. 21, 1989
4791952 Hydrant and components thereof Dec. 20, 1988
4790341 Hydrant and components thereof Dec. 13, 1988
4776363 Fire hydrant having internal valve actuation means Oct. 11, 1988
4763686 Hydrant and components thereof Aug. 16, 1988
4741356 Hydrant variable riser and restraint May. 3, 1988
4617956 Control means for ground hydrants Oct. 21, 1986
4440190 Control mechanism for a fire hydrant Apr. 3, 1984
4177826 Fire hydrant with improved shoe and valve Dec. 11, 1979
3961642 Fire hydrant valve rod coupling Jun. 8, 1976











 
 
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