Lawn sprinkling apparatus

Claim 2

A sprinkler head for sprinkling a controlled area in a defined pattern which comprises a housing having an inlet for a liquid supply and having a plurality of spray outlets formed on one surface thereof arranged in pairs, each outlet of each pair being directed toward the other outlet of said pair in a converging pattern, and passages in said housing between said inlet and said outlets for directing liquid under pressure to some of said outlets in varying degree to the other of said outlets to create a predetermined spray pattern by reason of the interference of the jets from said respective pairs of outlets.

Claim 3

means in each of said chambers to resiliently resist the introduction of liquid under pressure:

Claim 4

means in each of said chambers to resiliently resist the introduction of liquid under pressure:

Claim 5

A sprinkler head for sprinkling a controlled area in a defined pattern which comprises a housing having an inlet for a water supply and having a plurality of spray outlets formed on one surface thereof arranged in pairs, each outlet of each pair being directed toward the other outlet of said pair in a converging pattern, and passages in said housing between said inlet and said outlets for directing liquid under pressure to some of said outlets in varying degree to the other of said outlets to create a predetermined spray pattern by reason of the interference of the jets from said respective pairs of outlets, and passage means in said housing responsive to varying pressure therein to shift flow from One passage to another for a predetermined time.

Claim 6

A sprinkler head for sprinkling a controlled area in a defined pattern which comprises a housing having an inlet for a water supply and having a plurality of spray outlets formed on one surface thereof arranged in pairs, each outlet of each pair being directed toward the other outlet of said pair in a converging pattern, and passages in said housing between said inlet and said outlets for directing liquid under pressure to some of said outlets in varying degree to the other of said outlets to create a predetermined spray pattern by reason of the interference of the jets from said respective pairs of outlets, and passage means in said housing responsive to varying pressure therein to shift flow from One passage to another for a predetermined time.

Claim 7

A sprinkler head for sprinkling a controlled area in a defined pattern which comprises a housing having an inlet for a liquid supply and having a plurality of outlets formed on one surface thereof, a plurality of distribution passages leading from said inlet to said outlets, and a fluidic valve configuration having two control arm passages formed in said housing to direct flow selectively to one of said outlets as distinguished from another, said housing having a plurality of capacitor chambers formed therein, each connected to a control arm passage of said fluidic valve, said chambers serving selectively to accumulate pressure from a source at said inlet to shift said fluidic valve operation and influence flow.

Claim 8

A sprinkler head for sprinkling a controlled area in a defined pattern which comprises a housing having an inlet for a liquid supply and having a plurality of outlets formed on one surface thereof, a plurality of distribution passages leading from said inlet to said outlets, and a fluidic valve configuration having two control arm passages formed in said housing to direct flow selectively to one of said outlets as distinguished from another, said housing having a plurality of capacitor chambers formed therein, each connected to a control arm passage of said fluidic valve, said chambers serving selectively to accumulate pressure from a source at said inlet to shift said fluidic valve operation and influence flow.

Claim 9

a separator plate overlying said body housing passages therethrough to communicate with said chambers:

Claim 10

a separator plate overlying said body housing passages therethrough to communicate with said chambers:

Claim 11

A sprinkler head as defined in claim 3 in which a resilient means is interposed in each capacitor chamber to bias pressure liquid in said chamber.

Claim 12

a switch plate overlying said separator plate having formed therein fluidic valve passage configurations with control arms and outlet arms in communication with said chambers, and having distribution passages leading from said chambers: and

Claim 13

a switch plate overlying said separator plate having formed therein fluidic valve passage configurations with control arms and outlet arms in communication with said chambers, and having distribution passages leading from said chambers: and

Claim 14

a nozzle plate overlying said switch plate, said nozzle plate having formed therein nozzle passages leading from a first surface overlying said switch plate to nozzle openings in an exposed surface, said nozzle passages communicating respectively with distribution passages in said switch plate, wherein liquid under pressure in said supply hose is directed selectively to said nozzle openings in progressively increasing and decreasing quantities to sprinkle a controllable defined area.

Claim 15

a nozzle plate overlying said switch plate, said nozzle plate having formed therein nozzle passages leading from a first surface overlying said switch plate to nozzle openings in an exposed surface, said nozzle passages communicating respectively with distribution passages in said switch plate, wherein liquid under pressure in said supply hose is directed selectively to said nozzle openings in progressively increasing and decreasing quantities to sprinkle a controllable defined area.

Claim 16

A sprinkler head and remote control for sprinkling a controlled area in a defined pattern which comprises: a. a supply hose for liquid under pressure having a plurality of independent passages therein: b. valve means connected to said supply hose for controlling each of said passages independently of the other; and c. a sprinkler head comprising:

Claim 17

A sprinkler head and remote control for sprinkling a controlled area in a defined pattern which comprises: a. a supply hose for liquid under pressure having a plurality of independent passages therein: b. valve means connected to said supply hose for controlling each of said passages independently of the other; and c. a sprinkler head comprising:

Claim 18

A sprinkler head as defined in claim 5 in which said means in each of said chambers comprises a pneumatic compressible capsule occupying a portion of each said chamber.

Claim 19

A sprinkler head as defined in claim 5, in which the main body has four capacitor chambers, the switch plate has two fluid valve passage configurations, and the nozzle plate has four nozzle outlet passages and four nozzle openings, two of said openings being opposed to each other, and the other two being opposed to each other wherein flow from one of a pair of opposed openings can control the direction of the flow of the other nozzle of said pair.

Claim 20

A sprinkler head for sprinkling a controlled area in a defined pattern which comprises: a. a housing having an inlet for a liquid supply and a plurality of pairs of opposed outlets in a top surface thereof, each outlet of each pair being the termination of an outlet passage which angles upwardly toward the other outlet of said pair: b. a plurality of pairs of chambers formed in said housing, each chamber of each pair being respectively in communication with one of said outlet passages: c. hydraulic switch means in said housing to direct liquid under pressure selectively from said inlet to one chamber of each of said pairs of chambers: and d. means in said chambers and means in said switch means responsive to pressure accumulation in a particular chamber of a pair of chambers to switch flow from said particular chamber to the other of said chambers of said pair of chambers: wherein flow from said outlets occurs in response to the introduction oF liquid under pressure in said chambers.

Claim 21

A sprinkler head for sprinkling a controlled area in a defined pattern which comprises: a. a housing having an inlet for a liquid supply and a plurality of pairs of opposed outlets in a top surface thereof, each outlet of each pair being the termination of an outlet passage which angles upwardly toward the other outlet of said pair: b. a plurality of pairs of chambers formed in said housing, each chamber of each pair being respectively in communication with one of said outlet passages: c. hydraulic switch means in said housing to direct liquid under pressure selectively from said inlet to one chamber of each of said pairs of chambers: and d. means in said chambers and means in said switch means responsive to pressure accumulation in a particular chamber of a pair of chambers to switch flow from said particular chamber to the other of said chambers of said pair of chambers: wherein flow from said outlets occurs in response to the introduction oF liquid under pressure in said chambers.

Claim 22

A sprinkler head as defined in claim 8 in which means is provided in each chamber to provide resilient resistance to pressure build up in each chamber and to create an accumulator effect to cause emission of accumulated pressure in said chamber.

Claim 23

A sprinkler head as defined in claim 8 in which said switch means comprises a fluidic switch configuration having an input leg connected to said supply inlet, a pair of outlet areas respectively connected to each of a pair of chambers, and a pair of control ports between said leg and said arms also each respectively connected to each of said pair of chambers.

Claim 24

A sprinkler head as defined in claim 8 which separate passages are formed at said inlet leading to respective switch means in said head, a hose connection to each of said inlet passages, and a control valve in each hose connection remote from said head to effect control of liquid under pressure to each said inlet passage.

Claim 25

A sprinkler head as defined in claim 8 in which said head is provided with a plurality of supplemental passages leading from a plurality of secondary inlets to points in the flow pattern to affect the output of said respective outlet passages, and means for controlling individual supply of liquid under pressure to each of said supplemental passages to effect control of the direction of liquid emitting from said respective outlets.

Claim 26

A sprinkler head as defined in claim 12 in which a single hose having a main supply passage and a plurality of individual passages is connected to said housing to register with the inlet and the respective secondary inlets, and said means for controlling the individual supply of liquid to said supplemental passages comprises manually operable valves positioned in said hose remote from said head.

Claim 27

A sprinkler system for sprinkling a controlled area in a defined pattern which comprises: a. a housing having openings for a liquid supply and a plurality of outlets for directing a flow of liquid for a sprinkling effect: b. means forming a plurality of pairs of expansible-contractable chambers, each chamber being respectively in communication with one of said outlet passages: c. means to conduct a supply of liquid under pressure, d. hydraulic switch means to direct said supply of liquid under pressure selectively to one chamber of each of said pairs of chambers: and e. means in said switch means responsive to pressure accumulation in a particular chamber of a pair of chambers to switch flow from said particular chamber to the other of said chamber of said pair of chambers: wherein flow from said outlets occurs in response to the introduction of liquid under pressure in said chamber.

Claim 28

A sprinkler system for sprinkling a controlled area in a defined pattern which comprises: a. a housing having openings for a liquid supply and a plurality of outlets for directing a flow of liquid for a sprinkling effect: b. means forming a plurality of pairs of expansible-contractable chambers, each chamber being respectively in communication with one of said outlet passages: c. means to conduct a supply of liquid under pressure, d. hydraulic switch means to direct said supply of liquid under pressure selectively to one chamber of each of said pairs of chambers: and e. means in said switch means responsive to pressure accumulation in a particular chamber of a pair of chambers to switch flow from said particular chamber to the other of said chamber of said pair of chambers: wherein flow from said outlets occurs in response to the introduction of liquid under pressure in said chamber.

Claim 29

A sprinkler system for sprinkling a controlled area in a defined pattern which comprises: a. a housing having a plurality of inlets for water supply and a plurality of pairs of opposed outlets in a top surface thereof, each outlet of each pair being the termination of an outlet passage connected to an inlet: b. a hose connected at one end to each of said inlet passages made from flexible material responsive to pressure accumulation: c. fluidic switch means each having an input passage, control ports, and a pair of output legs at the other end of said hose to direct liquid under pressure selectively from the inlet to one or the other of two hoses leading to said opposed outlets in said sprinkler head wherein flow from said outlets occurs in response to the introduction of liquid under pressure in said hoses which serve as pressure accumulators; d. a control unit having control passages leading from each output leg of a fluidic switch to a control port of a fluidic switch: and e. a valve in each said control passages to limit the flow to said control port.

Claim 30

A sprinkler system for sprinkling a controlled area in a defined pattern which comprises: a. a housing having a plurality of inlets for water supply and a plurality of pairs of opposed outlets in a top surface thereof, each outlet of each pair being the termination of an outlet passage connected to an inlet: b. a hose connected at one end to each of said inlet passages made from flexible material responsive to pressure accumulation: c. fluidic switch means each having an input passage, control ports, and a pair of output legs at the other end of said hose to direct liquid under pressure selectively from the inlet to one or the other of two hoses leading to said opposed outlets in said sprinkler head wherein flow from said outlets occurs in response to the introduction of liquid under pressure in said hoses which serve as pressure accumulators; d. a control unit having control passages leading from each output leg of a fluidic switch to a control port of a fluidic switch: and e. a valve in each said control passages to limit the flow to said control port.

Claim 31

A control unit as defined in claim 15 in which a valve is interposed in each input passage leading to the fluidic switches to limit the flow individuAlly to each of said fluidic switches.

Claim 32

A sprinkler system for sprinkling a defined area which comprises: a. a plurality of fluidic oscillators each comprising a fluidic switch and two fluidic capacitors each arranged that flow leaving the switch passes through one of said capacitors: b. means for feeding the accumulated pressure in a capacitor back to a control port of a switch: c. a summing junction consisting of means forming a plurality of pairs of opposing nozzles arranged in such a manner, that each pair is connected to the outputs of one of said fluidic oscillators, the flow in each nozzle affecting the direction and angle of the flow out of the other nozzles: and d. flow control valves to control flow into each said fluidic oscillators for altering the spray pattern.

Claim 33

A sprinkler system for sprinkling a defined area which comprises: a. a plurality of fluidic oscillators each comprising a fluidic switch and two fluidic capacitors each arranged that flow leaving the switch passes through one of said capacitors: b. means for feeding the accumulated pressure in a capacitor back to a control port of a switch: c. a summing junction consisting of means forming a plurality of pairs of opposing nozzles arranged in such a manner, that each pair is connected to the outputs of one of said fluidic oscillators, the flow in each nozzle affecting the direction and angle of the flow out of the other nozzles: and d. flow control valves to control flow into each said fluidic oscillators for altering the spray pattern.

Claim 34

A sprinkling system as defined in claim 17 in which controllable valves are provided in the means for feeding accumulated pressure back to a control port for biasing the oscillations of said oscillators.

Claim 35

A sprinkling system as defined in claim 17 in which said fluidic capacitors are formed by individual hose connections leading to said nozzles from said fluidic switches.

Claim 36

A sprinkling system as defined in claim 17 in which said flow control valves are connected to each said fluidic oscillator by a hose connection wherein said flow control valves are remote from the summing junction.