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Class Information
Number: 137/624.18
Name: Fluid handling > Systems > Programmer or timer > Plural, sequential, valve actuations
Description: Subject matter in which the actuating means causes sequential operations of a single valve or an operation of each of a plurality of valves in sequence.










Sub-classes under this class:

Class Number Class Name Patents
137/624.19 Plural trips or trip actuations 3
137/624.2 Variable cycle 131


Patents under this class:
1 2 3 4

Patent Number Title Of Patent Date Issued
8443849 Apparatus and method for draining irrigation systems May. 21, 2013
8302631 Control valve for a fluid treatment system Nov. 6, 2012
8240328 Automatic fluid spill prevention and shut off safety valve Aug. 14, 2012
8172923 Apparatus and method for reducing particle contamination in a vacuum chamber May. 8, 2012
8122906 Pressure driven apparatus for sequential control of a cementing head Feb. 28, 2012
RE42633 Spool valve for fluid control Aug. 23, 2011
7892419 Device and method for treating water Feb. 22, 2011
7526365 Continuous-flow irrigation timer Apr. 28, 2009
RE40511 Rotary disc valve Sep. 23, 2008
7404415 Mechanical intermittent timer flow controller Jul. 29, 2008
7373949 Fluid treatment system May. 20, 2008
6959728 Rotary cam valve Nov. 1, 2005
6827288 Sprinkler system with relief and backflow preventer valve Dec. 7, 2004
6796273 Switching current water director (SCWD) for aquariums Sep. 28, 2004
6786234 Drainage tile flow regulator Sep. 7, 2004
6779557 Rotary disc valve Aug. 24, 2004
6763845 Water freeze prevention device Jul. 20, 2004
6755204 Multi-way valve employing two-state operator Jun. 29, 2004
6732760 Fluid distributor valve outlet opening and closing device May. 11, 2004
6715508 Drainage tile flow regulator Apr. 6, 2004
6644344 Method and apparatus for metering a flow rate of a fluid Nov. 11, 2003
6636782 Method of driving and controlling a solenoid-operated valve Oct. 21, 2003
6622933 Pressure sequence controlled valve and sprinkler system using same Sep. 23, 2003
6598621 Magnetic drives Jul. 29, 2003
6596159 Automatic regeneration valve for water softener Jul. 22, 2003
6543066 Washing water supply apparatus Apr. 8, 2003
6484800 Downhole flow control devices Nov. 26, 2002
6453215 Irrigation controller Sep. 17, 2002
6287457 Water treatment device having volumeter driven monitoring discs Sep. 11, 2001
6241015 Apparatus for remote control of wellbore fluid flow Jun. 5, 2001
6220293 Multiple outlets self-actuated irrigation valve Apr. 24, 2001
6214214 Water treatment system with purge valve responsive to fluid signals Apr. 10, 2001
6176258 Dual cam drive for water conditioner valve Jan. 23, 2001
6095192 Spool valve for fluid control Aug. 1, 2000
6070610 Fluid operated timer for a plurality of reservoirs Jun. 6, 2000
6058956 Cycling self checking block valve May. 9, 2000
6056873 Management of a body of water May. 2, 2000
6019180 Method for evaluating the power output of a drilling motor under downhole conditions Feb. 1, 2000
5944052 Multiple outlets self-actuated irrigation valve Aug. 31, 1999
5910244 Adaptable control valve for fluid treatment system Jun. 8, 1999
5879137 Method and apparatus for pressurizing fluids Mar. 9, 1999
5853027 Apparatus and method for operating paint color valves in a paint spraying system Dec. 29, 1998
5826607 Dual exhaust controller Oct. 27, 1998
5762092 Hydraulic pressure-actuated irrigation water distribution valve apparatus Jun. 9, 1998
5718569 Dual plunger cassette pump Feb. 17, 1998
5694963 Method and apparatus for freeze prevention of irrigation systems Dec. 9, 1997
5522465 Method and apparatus for a safety system Jun. 4, 1996
5473309 Apparatus for testing an irrigation system controller and method of testing irrigation systems Dec. 5, 1995
5385207 Offshore well remote start-up system Jan. 31, 1995
5368062 Gas supplying system and gas supplying apparatus Nov. 29, 1994

1 2 3 4










 
 
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