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Class Information
Number: 137/564.5
Name: Fluid handling > Systems > Main line as motive fluid for follower-type feeder
Description: System including an additive reservoir in a shunt on a main line, the reservoir including noncommunicating compartments defined by a blind follower actuated by main line pressure.










Patents under this class:
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Patent Number Title Of Patent Date Issued
8640730 Variable resistance fluid controller Feb. 4, 2014
7926503 Fluid injection system Apr. 19, 2011
7784715 Cartridge and admixing apparatus for a manually operable apparatus for spraying water mixed with an additive Aug. 31, 2010
7093606 Liquid fertilizer injector system for lawn sprinkler systems and irrigation systems Aug. 22, 2006
6997350 Apparatus for adding fertilizer to water in an underground sprinkling system and fertilizer therefor Feb. 14, 2006
6966503 Sprinkler provided with a built-in mechanism for dispensing detergent Nov. 22, 2005
6701953 Chemical mixing and metering apparatus Mar. 9, 2004
6659128 Fluid injection with vent/proportioner ports Dec. 9, 2003
6659117 Method for dispensing a solution Dec. 9, 2003
6588929 Portable mixing and dispensing apparatus and method Jul. 8, 2003
6419118 Containers with flexible pouch and closure member Jul. 16, 2002
6302148 Coupling device Oct. 16, 2001
6164326 Device for introducing encapsulated products into water Dec. 26, 2000
5957153 Oscillating dual bladder balanced pressure proportioning pump system Sep. 28, 1999
5913327 Device for introducing substances into water Jun. 22, 1999
5538027 Pressure balancing foam valve Jul. 23, 1996
5435346 Device for treating and conditioning engine coolant Jul. 25, 1995
5396914 Detergent dispenser in a dishwashing machine Mar. 14, 1995
5366159 Automatic lawn and garden feeding apparatus Nov. 22, 1994
5353990 Liquid additives dispenser for sprinkler systems Oct. 11, 1994
5251656 Multiple chemical feeder for swimming pools Oct. 12, 1993
5246168 Liquid additives dispenser for sprinkler systems Sep. 21, 1993
5213129 Fluid mixing device May. 25, 1993
5165442 Differential valve Nov. 24, 1992
5129730 Fluid mixing device Jul. 14, 1992
5094269 Liquid fertilizer metering system Mar. 10, 1992
5088517 Apparatus for admitting flowable additive to a liquid Feb. 18, 1992
5009244 Fire fighting foam mixing system Apr. 23, 1991
5004158 Fluid dispensing and mixing device Apr. 2, 1991
4974634 Liquid fertilizer metering system Dec. 4, 1990
4971105 Hydraulic fluid injection apparatus Nov. 20, 1990
4887640 Fluid injection system Dec. 19, 1989
4886212 Spraying device having controlled additive fluid feed and a telescoping spray tube assembly Dec. 12, 1989
4846220 Medicator with readily changeable orifice size Jul. 11, 1989
4736769 Device for introducing an additive liquid into a carrier liquid flowing in a pipe Apr. 12, 1988
4682734 Spraying device having controlled additive fluid feed and a telescoping spray tube assembly Jul. 28, 1987
4651765 Fertilizer pump Mar. 24, 1987
4635848 Irrigation additive delivery system Jan. 13, 1987
4545535 Liquid metering and dispensing apparatus Oct. 8, 1985
4467964 Automatic mixing device for use in a shower head Aug. 28, 1984
4449543 Fluid injecting method and apparatus May. 22, 1984
4418869 Hose mounted fluid mixing sprayer Dec. 6, 1983
4406406 Liquid metering and dispensing apparatus Sep. 27, 1983
4403944 Auxiliary device for oil burner for mixing water and oil for combustion Sep. 13, 1983
4364516 Injector Dec. 21, 1982
4352374 Apparatus for diluting a concentrated solution Oct. 5, 1982
4315600 Spray gun injector Feb. 16, 1982
4248266 Liquid soap injector for a water bath spray system Feb. 3, 1981
4244494 Method for inserting an additive liquid into a flowing fluid and discharging the resultant mixture Jan. 13, 1981
4240465 Medicator construction Dec. 23, 1980

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