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公开(公告)号：US10857551B1
公开(公告)日：2020-12-08
申请号：US16813598
申请日：2020-03-09
发明人： Don Duffin , Roger Duffin , Casey Nutt
摘要： A sprinkler head having a spool assembly for nutating within the sprinkler head. The spool assembly has a spool attached by one or more arms to a distribution disc. The sprinkler head has a nozzle configured to spray a fluid stream through a central bore of the spool onto the distribution disc, causing nutation of the spool assembly within the sprinkler head. The spool assembly is configured with two friction bands that are each configured to radially roll in or on a respective race within the sprinkler body. The friction bands can be integrally formed with the spool assembly or positioned on the spool surface.
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公开(公告)号：US11045824B1
公开(公告)日：2021-06-29
申请号：US17024190
申请日：2020-09-17
发明人： Don Duffin , Roger Duffin , Casey Nutt
摘要： An improved nozzle assembly for use with a sprinkler body. The nozzle assembly has a nozzle body having a recess and defining a fluid flow path through the nozzle assembly. A nozzle insert is positioned in the nozzle body and retained by a keeper tab that is positioned through an opening in a rear wall of the recess. The nozzle insert is rotatable between a series of operational positions including the IN (or insertion) position, the RUN position, the OFF position, the FLUSH position, and the LINE FLUSH position. A biasing plate is positioned on the face of the nozzle body and is configured to detent the turning knob of the nozzle insert in the RUN position. Further provided is a nozzle insert carrier configured to retain additional, not-in-use nozzle inserts with the nozzle assembly.
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公开(公告)号：US11045822B2
公开(公告)日：2021-06-29
申请号：US16733082
申请日：2020-01-02
发明人： Don Duffin , Roger Duffin , Casey Nutt
摘要： A sprinkler head having a nutating fluid distribution cage. The sprinkler head has a first sprinkler body and a second sprinkler body. The first sprinkler body has an upper plate and a lower plate. A distribution cage is configured to hang from the lower plate when fluid is not being sprayed onto the cage. An upper cage plate of the distribution cage is configured to nutate between the upper plate and the lower plate when fluid is sprayed on the cage. The second sprinkler body is positioned below the cage and is connected to the first sprinkler body by one or more arms. The cage has a magnet coupled with a magnet of the second sprinkler body. The magnetic coupling allows the cage to hang at an angle from the lower sprinkler body plate when fluid is not sprayed onto the cage and/or to provide for a speed dampener of the rate of nutation of the cage.
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公开(公告)号：US11896990B2
公开(公告)日：2024-02-13
申请号：US17362814
申请日：2021-06-29
发明人： Don Duffin , Roger Duffin , Casey Nutt
摘要： An improved nozzle assembly for use with a sprinkler body. The nozzle assembly has a nozzle body having a nozzle insert bore and defining a fluid flow path through the nozzle assembly. A nozzle insert is positioned in the nozzle body and retained within the nozzle assembly. The nozzle insert is rotatable between operating positions. In some embodiments, a spring biased detent and detent notches index the nozzle insert at one of a series of operating positions. The nozzle insert is rotatable between the series of operational positions including the IN (or insertion) position, the RUN position, the OFF position, the FLUSH position, and the LINE FLUSH position. In an alternate embodiments the nozzle insert has detents on a circumference of the nozzle insert. A magnet is positioned in or attached to the nozzle insert. A second magnet is positioned in or attached to the body of the nozzle assembly. The detents are configured to align with detent notches in a faceplate of the nozzle assembly body. When the detents are aligned with the detent notches, the attractive force between the two magnets retains the nozzle insert in one of the operating positions in the nozzle insert bore.
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公开(公告)号：US11261985B1
公开(公告)日：2022-03-01
申请号：US17329516
申请日：2021-05-25
发明人： Don Duffin , Roger Duffin , Casey Nutt
摘要： An improved gas vent having a body defining a float chamber. A float is positioned within the float chamber. The float chamber defines a passageway for gas to flow from an first port to an outflow port. A float is positioned within the float chamber. The float is configured to move toward a closed position as the fluid level within the float chamber increases. As the fluid level increases the float raises and seals against an interior of the gas vent, preventing further fluid flow through the vent. A shield is positioned between the float and the first port. The shield is configured to deflect gas flow around the shield and float to prevent the float from raising prematurely in response to high velocity gas flow on the float.
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