| Additive delivery device and methodology for irrigation systems -> Monitor Keywords |
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Additive delivery device and methodology for irrigation systemsAdditive delivery device and methodology for irrigation systems description/claimsThe Patent Description & Claims data below is from USPTO Patent Application 20060196543, Additive delivery device and methodology for irrigation systems. Brief Patent Description - Full Patent Description - Patent Application Claims
CROSS-REFERENCES TO RELATED APPLICATIONS [0001] This application incorporates by reference and claims priority of the non-provisional patent application filed on Mar. 5, 2005, Ser. No. 60/659,126. STATEMENT REGARDING FEDERALLY SPONSORED RESEARCH OR DEVELOPMENT [0002] Not Applicable REFERENCE TO A "MICROFICHE APPENDIX" [0003] Not Applicable. BACKGROUND [0004] 1. Field of the Invention [0005] The present invention generally relates to the field of devices that deliver additive(s) into water being distributed by an irrigation system. More particularly, this invention generally pertains to additive delivery devices that may be attached to pipe-based irrigation systems. [0006] 2. Background [0007] People located in arid or low rain fall areas have been known to generally use various watering techniques to substantially supplement, replace or otherwise conserve rain-based water, which may be used for watering for plants and the like. Such techniques include, but are generally not limited to irrigation systems which may use pipes and the like for the delivery of water to areas where plant life may be located. [0008] As shown generally in FIG. 1, one such irrigation system, generally indicated by reference numerals 10, can generally be comprised of a pressurized water source 12 that is fed into a connected pipe network (e.g., a pipe system) 14. The connected pipe network 14 may having a water supply cutoff valve 16, an inlet drain valve 18, an inlet cutoff valve 20, a pressure vacuum breaker (e.g. also could be known as an anti-back flow valve or anti siphon valve) 50, an outlet cutoff valve 22, an outlet water distribution valve 24, an outlet drain valve 26, and at least one outlet water delivery device 28. [0009] In such an irrigation system 10, the water from the pressurized water source or supply 12 generally enters the network of pipes 14 to generally pass through a water supply cutoff valve 16, which generally regulates the water supply to the connected pipe network 14. After passing through the open water supply cutoff valve 14, the pressurized water could generally continue into the inlet drain valve 18. Normally closed during regular operations of the irrigation system, the inlet drain valve 18, when open, may direct any pressurized water in the inlet portion 30 (e.g. from and including the inlet side 52 of the vacuum pressure breaker 50 through the water supply cutoff valve 16) from the irrigation system 10 and into a drain. When the inlet drain valve 18 is closed, water may pass through the inlet drain valve 18 into the inlet cutoff valve 20. [0010] When open, the inlet cutoff valve 18 generally allows the pressurized water to flow into the inlet side 52 of the vacuum pressure breaker valve 50. When closed, the inlet cutoff valve 18 may stop the water from generally entering into the vacuum pressure breaker 50 and the rest of the irrigation system 10. [0011] Water present in the pipe network 14, from water supply cutoff valve 16 to the inlet side 52 of the vacuum pressure breaker 50, may be generally denoted as being inlet water. The piping and other irrigation system components of the piping network 14, which are located on the inlet side 52 of the vacuum pressure breaker 50, may be generally denoted as being a part of the inlet portion 30 of the irrigation system 10. [0012] When inlet water in the pipe network 14 that has generally passes from the inlet portion of inlet portion 30 of the irrigation system 10, the water may then be generally denoted as being outlet water. The piping and other components of the pipe network 14 through which the outlet water normally flows (e.g., the portion of the irrigation system 10 from the outlet side 54 of vacuum pressure breaker 50 through to the outlet water delivery device 28) could generally be seen as forming the outlet portion 32 of the irrigation system 10. [0013] During normal operations of the irrigation system 10, when pressurized water from the water source 12 is moving and reaches the pressure vacuum breaker 50, the pressurized water will generally be able to flow through the interior of the vacuum pressure breaker 50 (e.g., anti-siphon means) onto the outlet portion 32 of the irrigation system 10. Specifically, pressurized water will then generally flow from the vacuum pressure breaker 50 onto the outlet cutoff valve 22 of the outlet portion of the irrigation system 10. [0014] If pressure of the water from the water source 12, should drop below a specified level or if the water source 12 to the irrigation system is otherwise disrupted, diverted or cutoff, then the vacuum pressure breaker 50 operates to generally seal the outlet portion 32 from the inlet portion 30 of the irrigation system 10. This sealing action prevents any outlet water, which may contain containments from the area being watered, from reversing its original path or course of travel and flow backwards (e.g., backflow) to and though the inlet portion 30 of the irrigation system 10. If this backflow were allowed to occur, it could possibly contaminate the water source 12. This possible tainting of the water source 12 (which may also provide drinking water for people) could lead to health issues. To prevent such backflow contamination of the water source 12, many municipalities and larger governmental organizations mandate the use of vacuum pressure breakers 50 with irrigation systems 10, especially those irrigation systems 10, which may be also linked to drinking water supply source. [0015] A possible second action of the vacuum pressure breaker 50 (when sealing the outlet portion 32 from the inlet portion of the irrigation system 10) is generally to allow outside atmosphere to enter into the outlet portion 32 of the irrigation system 10 to break any vacuum pressure (e.g. suction) in the outlet portion 32, which may cause the backflow of the outlet water in the first place. [0016] During normal operations, when inlet water becomes outlet water by passing through and exiting the pressure vacuum breaker 50, the outlet water may generally flow into the outlet cutoff valve 22. If the outlet cutoff valve 22 is closed, it generally prevents the pressurized water from reaching the remainder of the outlet portion 32 of the irrigation system 10. If outlet cutoff valve 22 is open, the pressurized water may generally continue into an outlet drain valve 26. [0017] If the outlet drain valve 26 is substantially open, then any water present between outlet water distribution valve 24 and the outlet side 32 of the vacuum pressure breaker 50 may be directed into the drain. If the outlet drain valve 26 is generally closed, the pressurized water may bypass the drain to generally continue onto an outlet water distribution valve 24. [0018] Generally speaking, an outlet water distribution valve 24 (e.g., a solenoid-controlled water valve) may generally control (e.g., the amount of water to be distributed and when the distribution is to occur) the outlet water to a particular section of outlet portion 32 of the irrigation system 10. The particular section of outlet portion 32 could be used to deliver outlet water to a certain section of an area being serviced by the irrigation system 10 (e.g., a particular section could terminate at a front lawn to water a front lawn, while another particular section could terminate the backyard to water the backyard). [0019] As the outlet water substantially passes though an open outlet water distribution valve 24 and onto connected piping, the connected piping could have attached to it a wide variety of outlet water delivery devices 28. Outlet water delivery devices 28 could include those devices such as popup water sprinklers, mini-sprinklers, drip emitters, perforated hoses and the like which may be used to direct the water out of the pipe system 14 to desired locations at a certain section of area being serviced by the irrigation system 10. Such outlet water delivery devices 28 could generally help control the amount and manner in which the outlet water reaches the desired locations. [0020] One possible objective of an irrigation system 10 could be the adaptation of the irrigation system 10 to secondarily deliver additives such as fertilizer, insecticides, moldicides, ph buffers, specialized herbicides (weed killer), and the like to areas being serviced by the irrigation system 10. For example, it might be desirable to have a respective irrigation system 10 be adapted to substantially fertilize and water a selected area at the same time. This ability could then save the operator the cost, labor, and time to separately fertilize the same area being serviced by the irrigation system 10. Continue reading about Additive delivery device and methodology for irrigation systems... Full patent description for Additive delivery device and methodology for irrigation systems Brief Patent Description - Full Patent Description - Patent Application Claims Click on the above for other options relating to this Additive delivery device and methodology for irrigation systems patent application. ###  How KEYWORD MONITOR works... a FREE service from FreshPatents1. Sign up (takes 30 seconds). 2. Fill in the keywords to be monitored. 3. Each week you receive an email with patent applications related to your keywords. Start now! - Receive info on patent apps like Additive delivery device and methodology for irrigation systems or other areas of interest. ### Previous Patent Application: Control of fluid conditions in bulk fluid distribution systems Next Patent Application: Vacuum breaker Industry Class: Fluid handling ### FreshPatents.com Support Thank you for viewing the Additive delivery device and methodology for irrigation systems patent info. 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