Self-cleaning ball valve
First Claim
1. In an irrigation pipe system, the improvements operatively associated therewith comprising a riser, a sprinkler head having an aqueduct of predetermined cross section, and a ball valve for controlling the outward flow of water through said system comprising:
- a ball valve chamber remote from said sprinkler head;
a throat communicating with and conducting away from the outlet port of said valve chamber;
a valve trigger comprising a hollow tube sized to closely fit the inside of said throat, said tube having at one end longitudinally projecting spaced fingers such that when said trigger is inserted in said throat said fingers engage the ball and push it away from its seat, the fingers and ball in cooperation forming apertures individually smaller in cross section than said aqueduct in said sprinkler head to strain particles larger than said aqueduct, said trigger having an open end whereby upon being removed from said throat the spaces between said fingers are cleaned by the flow of water therethrough, and means for releasably connecting said trigger in open valve position.
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Abstract
An improvement on a ball valve for use in detachably connecting a riser pipe to an irrigation lateral. The novel valve has a throat operatively connected to the outlet end of the valve. The throat receives a valve trigger tube which has spaced fingers extending longitudinally from the end of the pipe to engage the ball, thereby forming apertures between the fingers which serve as a strainer to prevent the passage of foreign objects and which can be sized to regulate the flow of water. When the tube is withdrawn the flow of the water through the then open end of the tube generates a self-cleaning action.
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Citations
2 Claims
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1. In an irrigation pipe system, the improvements operatively associated therewith comprising a riser, a sprinkler head having an aqueduct of predetermined cross section, and a ball valve for controlling the outward flow of water through said system comprising:
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a ball valve chamber remote from said sprinkler head; a throat communicating with and conducting away from the outlet port of said valve chamber; a valve trigger comprising a hollow tube sized to closely fit the inside of said throat, said tube having at one end longitudinally projecting spaced fingers such that when said trigger is inserted in said throat said fingers engage the ball and push it away from its seat, the fingers and ball in cooperation forming apertures individually smaller in cross section than said aqueduct in said sprinkler head to strain particles larger than said aqueduct, said trigger having an open end whereby upon being removed from said throat the spaces between said fingers are cleaned by the flow of water therethrough, and means for releasably connecting said trigger in open valve position. - View Dependent Claims (2)
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Specification
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- Resources
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Current AssigneeIrrigation Engineering & Specialties
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Original AssigneeIrrigation Engineering & Specialties
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InventorsRoth, Ronald W., Voss, Hubert E.
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Primary Examiner(s)Peters, Jr., Joseph F.
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Assistant Examiner(s)Church, Gene A.
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Application NumberUS05/296,958Time in Patent Office1,944 DaysField of Search239/114, 239/116, 239/111, 239/569, 239/547, 239/117, 239/123, 239/572, 239/262, 239/201, 239/207, 239/230, 239/579, 251/149.1US Class Current239/541CPC Class CodesB05B 1/302 with a ball-shaped valve me...B05B 3/0472 the spray jet actuating a m...
