System and process for producing sprinkler assemblies

• US 5,938,122 A
• Filed: 07/03/1997
• Issued: 08/17/1999
• Est. Priority Date: 06/01/1994
• Status: Expired due to Term

• Current Assignee: Fiskars Oyj Abp
• Original Assignee: L.R. Nelson Corporation (Robert Bosch GmbH)
• Inventors: Hayes, Jerry R., Kruer, Thomas R., Heren, Lawrence P.
• Primary Examiner(s): Morris, Lesley D.
• Application Number:
  US08/888,089
• Time in Patent Office: 775 Days
• Field of Search: 239/237, 239/240, 239/242, 239/263.3, 239/DIG. 1
• US Class Current: 239/242
• CPC Class Codes: B05B 1/3026 the controlling element being a gate valve, a sliding valve or a cock B05B1/3006, B05B1/326 take precedence; gate valves or sliding valves in general F16K3/00; cocks in general F16K5/00
• CPC Class Codes: B05B 15/625 designed to be placed on the ground
• CPC Class Codes: B05B 3/044 Tubular elements holding several outlets, e.g. apertured tubes, oscillating about an axis substantially parallel to the tubular element
• CPC Class Codes: Y10S 239/01 Pattern sprinkler

Abstract

System and process for producing different embodiments of sprinkler assemblies uses two different first housing assemblies, from which one first housing assembly is selected for producing a desired sprinkler assembly embodiment. Each first housing assembly is replaceable with the other and includes an inlet end and a spaced outlet end; the inlet end of each first housing assembly is configured for connection with a source of water under pressure. Each first housing assembly also includes an adjustable flow control mechanism to control the flow of water under pressure through the first housing assembly. The control mechanism may include a manually-actuated moveable valve structure to control water flow rate, or a timing mechanism to select a duration for the water flow. By providing a first housing assembly with a control mechanism that is different from that of the other first housing assembly, the sprinkler assembly embodiment produced will depend upon the first housing assembly that is selected. A second housing assembly having an oscillating mechanism also is provided, and a sprinkler head assembly is connected to the oscillating mechanism. The first housing assembly, the second housing assembly, and the sprinkler head assembly are supported by a base assembly on the area to be sprinkled. Additional features, such as adjusting rings and spray width control members, also may be provided.

Claims

1. A systerm for producing different embodiments of sprinkler assemblies, the system comprising:

at least two different first housing assemblies from which one first housing assembly maybe selected for producing a desired sprinkler assembly embodiment, each first housing assembly being replaceable with the other and including an inlet end and a spaced outlet end, the inlet end of each first housing assembly being configured for connection with a source of water under pressure, each first housing assembly further including an adjustable flow control mechanism to control the flow of water under pressure through the first housing assembly in accordance with the adjustment of the control mechanism, the control mechanism of one first housing assembly being different from the control mechanism of the other first housing assembly such that the sprinkler assemhly embodiment produced depends upon the first housing assembly that is selected;

a second housing assembly having an inlet end and a spaced outlet end, the inlet end of the second housing assembly being configured to mate with the outlet end of the selected first housing assembly for fluid communication therewith, the second housing assembly further including an oscillating mechanism;

a sprinkler head assembly to the connected to the oscillating mechanism of the second housing assembly such that the sprinkler head assembly can be oscillated about an oscillatory axis through repeated oscillating head cycles, each oscillaing head cycle including a head stroke in one direction and a return head stroke in the opposite direction, the sprinkler head assembly having an inlet end to receive water from the outlet end of the second housing assembly and an outlet configuration to discharge water under pressure in a spray pattern;

a base assembly to support the selected first housing assembly, the second housing assembly and the sprinkler head assembly on an area to be sprinkled such that the water under pressure can be distributed in the spray pattern.

2. The system of claim 1, wherein the control mechanism of at least one of the different first housing assemblies includes a manually-actuated moveable valve structure to control the flow rate of water under pressure to the sprinkler head assembly.

3. The system of claim 1, wherein at least one of the different first housing assemblies includes a peripheral wall portion extending axially between the inlet end and the outlet end, the control mechanism including a cam slot formed in the peripheral wall portion to extend from one end thereof peripherally to an opposite end thereof displaced axially from the one end thereof a distance substantially less than the peripheral distance between the ends thereof, an inlet cylindrical wall communicating in water pressure relation with the housing assembly inlet end, an outlet cylindrical wall communicating with the housing assembly outlet end, a movable cylindrical wall having opposite end portions disposed in sealing telescoping relation with the inlet and outlet cylindrical walls, a handle fixed with respect to the movable cylindrical wall and extending within the cam slot outwardly thereof in a position to be manually engaged, the handle being constructed and arranged with respect to the cam slot to be guided axially by the cam slot when manually moved through a peripheral extent thereof so that the axial position of the handle within the cam slot determines the axial position of the movable cylindrical wall in telescoping relation with the input and output cylindrical walls, the movable cylindrical wall and one of the input and output cylindrical walls having cooperating flow control surfaces movable relatively axially toward and away from one another as the movable cylindrical wall is moved axially with the handle in response to a manual peripheral movement thereof, the cooperating flow control surfaces being constructed and arranged to vary the flow rate through the first housing assembly in accordance with the position of the handle within the cam slot.

4. The system of claim 1, wherein the control mechanism of at least one of the different first housing assemblies includes a moveable ball valve structure to control the flow of water under pressure to the sprinkler head assembly.

5. The system of claim 1, wherein the control mechanism of at least one of the different first housing assemblies includes a timing mechanism to select a duration for the flow of water under pressure to the sprinkler head assembly.

6. The system of claim 1, wherein the control mechanism of at least one of the different first housing assemblies includes a water flow valve adjacent the inlet end of the first housing assembly, the flow valve being moveable between (1) a closed position preventing the flow of water under pressure through the first housing assembly and (2) an open position permitting the flow of water under pressure through the first housing assembly;

a valve-moving mechanism to be moved away from a valve closing position to a selected watering position within a range of watering positions between a minimum watering position and a maximum watering position, the valve-moving mechanism moving the control valve to the closed position when the valve-moving mechanism is in the valve-closing position and to the open position when the valve-moving mechanism is within the range of watering positions;

a constant stroke producing mechanism including an oscillating input member moved through repeated oscillating input cycles and a constant stroke output member to produce a movement stroke of a constant distance for each oscillating input cycle; and

a motion transmitting assembly to transmit the movement strokes of the constant stroke output member to the valve-moving mechanism to move the valve-moving mechanism from a selected watering position within the range of watering positions to the valve-closing position so that the amount of water distributed is determined by the selected watering position.

7. The system of claim 1 further including an adjusting mechanism to enable the distance of the head stroke of each oscillating head cycle to be adjusted within a range between a minimum head stroke distance and a maximum head stroke distance.

8. The system of claim 7, wherein the adjusting mechanism includes first and second side-by-side adjusting rings mounted on an annular housing section of the second housing assembly and configured to be moved into first and second selected adjustment positions within first and second ranges of adjustment positions, the first and second rings having first and second stop surfaces thereon disposed in arcuately spaced relation to one another when the rings are in first and second selected adjustment positions, the sprinkler head assembly having cooperating first and second stop surfaces thereon disposed in a position to engage the first and second stop surfaces of the first and second rings at the end of each head stroke and return stroke of the sprinkler head assembly respectively.

9. The system of claim 1, wherein the sprinkler head assembly includes a hollow tubular member having a plurality of controllable water stream outlets extending therethrough, and a control member mounted on the tubular member for movement relative to the tubular member between a full width operating position and a width limiting position, the control member selectively obstructing fluid flow through a number of the controllable water stream outlets, the number of controllable water stream outlets obstructed by the control member being selected by the position of the control member.

10. The system of claim 1, wherein the first housing assembly, the second housing assembly and the sprinkler head assembly are attached to the base assembly using snap action connections.

11. A process for producing a sprinkler assembly comprising the steps of:

selecting a first housing assembly having an inlet end and a spaced outlet end, the inlet end of the first housing being configured for connection with a source of water under pressure, the first housing assembly further including an adjustable flow control mechanism to control the flow of water under pressure through the outlet end of the first housing assembly in accordance with the adjustment of the control mechanism;

providing a second housing assembly having an inlet end and a spaced outlet end, the inlet end of the second housing assembly being configured to mate with the outlet end of the first housing assembly for fluid communication therewith, the second housing assembly further including an oscillating mechanism;

connecting a sprinkler head assembly to the oscillating mechanism of the second housing assembly such that the sprinkler head assembly can be oscillated about an oscillatory axis through repeated oscillating head cycles, each oscillating head cycle including a head stroke in one direction and a return head stroke in the opposite direction, the sprinkler head assembly having an inlet end to receive water from the outlet end of the second housing assembly and an outlet configuration to discharge water under pressure in a spray pattern;

mounting the first housing assembly, the second housing assembly and the sprinkler head assembly on a base assembly to support the sprinkler head assembly on an area to be sprinkled such that the water under pressure can be distributed in the spray pattern.

12. The process of claim 11, wherein the first housing assembly selected by the selecting step includes a peripheral wall portion extending axially between the inlet end and the outlet end, the control mechanism including a cam slot formed in the peripheral wall portion to extend from one end thereof peripherally to an opposite end thereof displaced axially from the one end thereof a distance substantially less than the peripheral distance between the ends thereof, an inlet cylindrical wall communicating in water pressure relation with the housing assembly inlet end, an outlet cylindrical wall communicating with the housing assembly outlet end, a movable cylindrical wall having opposite end portions disposed in sealing telescoping relation with the inlet and outlet cylindrical walls, a handle fixed with respect to the movable cylindrical wall and extending within the cam slot outwardly thereof in a position to be manually engaged, the handle being constructed and arranged with respect to the cam slot to be guided axially by the cam slot when manually moved through a peripheral extent thereof so that the axial position of the handle within the cam slot determines the axial position of the movable cylindrical wall in telescoping relation with the input and output cylindrical walls, the movable cylindrical wall and one of the input and output cylindrical walls having cooperating flow control surfaces movable relatively axially toward and away from one another as the movable cylindrical wall is moved axially with the handle in response to a manual peripheral movement thereof, the cooperating flow control surfaces being constructed and arranged to vary the flow rate through the first housing assembly in accordance with the position of the handle within the cam slot.

13. The process of claim 11, wherein the control mechanism of the first housing assembly selected by the selecting step includes a water flow valve adjacent the inlet end of the first housing assembly, the flow valve being moveable between (1) a closed position preventing the flow of water under pressure through the first housing assembly and (2) an open position permitting the flow of water under pressure through the first housing assembly;

a valve-moving mechanism to be moved away from a valve closing position to a selected watering position within a range of watering positions between a minimum watering position and a maximum watering position, the valve-moving mechanism moving the control valve to the closed position when the valve-moving mechanism is in the valve-closing position and to the open position when the valve-moving mechanism is within the range of watering positions;

a constant stroke producing mechanism including an oscillating input member moved through repeated oscillating input cycles and a constant stroke output member to produce a movement stroke of a constant distance for each oscillating input cycle; and

a motion transmitting assembly to transmit the movement strokes of the constant stroke output member to the valve-moving mechanism to move the valve-moving mechanism from a selected watering position within the range of watering positions to the valve-closing position so that the amount of water distributed is determined by the selected watering position.

14. The process of claim 11 further including the step of installing an adjusting mechanism configured to enable the distance of the head stroke of each oscillating head cycle to be adjusted within a range between a minimum head stroke distance and a maximum head stroke distance.

15. The process of claim 11, wherein the adjusting mechanism installed by the installing step includes first and second side-by-side adjusting rings mounted on an annular housing section of the second housing assembly and configured to be moved into first and second selected adjustment positions within first and second ranges of adjustment positions, the first and second rings having first and second stop surfaces thereon disposed in arcuately spaced relation to one another when the rings are in first and second selected adjustment positions, the sprinkler head assembly having cooperating first and second stop surfaces thereon disposed in a position to engage the first and second stop surfaces of the first and second rings at the end of each head stroke and return stroke of the sprinkler head assembly respectively.

16. The process of claim 11, wherein the sprinkler head assembly connected by the connecting step includes a hollow tubular member and an elongated strip of flexible material positioned inside the hollow tubular member, the strip having a series of longitudinally spaced water stream outlets extending therethrough.

17. The process of claim 11, wherein the sprinkler head assembly connected by the connecting step includes a hollow tubular member having a plurality of controllable water stream outlets extending therethrough, and a control member mounted on the tubular member for movement relative to the tubular member between a full width operating position and a width limiting position, the control member selectively obstructing fluid flow through a number of the controllable water stream outlets, the number of controllable water stream outlets obstructed by the control member being selected by the position of the control member.

18. The process of claim 11, wherein the mounting step includes attaching the first housing assembly, the second housing assembly and the sprinkler head assembly to the base assembly using snap action connections.

19. The process of claim 11, wherein the selecting step includes selecting the first housing assembly from at least two different first housing assemblies to produce a desired sprinkler assembly embodiment, each first housing assembly being replaceable with the other, the control mechanism of one first housing assembly being different from the control mechanism of the other first housing assembly such that the sprinkler assembly embodiment produced depends upon the first housing assembly that is selected.

20. The process of claim 19, wherein the control mechanism of at least one of the different first housing assemblies includes a manually-actuated moveable valve structure to control the flow rate of water under pressure to the sprinkler head assembly.

21. The process of claim 19, wherein the control mechanism of at least one of the different first housing assemblies includes a timing mechanism to select a duration for the flow of water under pressure to the sprinkler head assembly.