Sprinkler pressure regulator having a filter basket
AssigneeK-Rain Manufacturing Corp.
InventorDanhui Luo
Life of this patent
Estimating the term…
Abstract
A pressure regulator for use in a sprinkler assembly including a riser and a sprinkler basket includes an outer sleeve mounted in the riser at an inlet thereof and a pressure responsive member, movably mounted in the outer sleeve and movable from an open position allowing flow of water between the top surface of the filter basket and the bottom edge of the pressure responsive member and up the riser and a closed position where the bottom edge of the pressure responsive member contacts the top surface of the filter basket to prevent water from flowing. The pressure responsive member is biased in the open position and moves into the closed position when downstream water pressure exceeds a predetermined value.
Claims20
A sprinkler assembly comprises:
- a base including a water inlet;
- a riser, in fluid communication with the inlet and movably mounted in the base to move from a retracted position to an extended position when based on water pressure provided by water entering the base through the water inlet;
- a nozzle housing in fluid communication with the riser and rotatably mounted on a top of the riser;
- a filter basket mounted on a bottom of the riser;
- and
- a pressure regulator mounted at a bottom of the riser and in contact with the filter basket;
- the pressure regulator including:
- an outer sleeve mounted on an interior wall of the riser;
- and
- a pressure responsive member, movably mounted in the outer sleeve and movable from an open position in which a bottom edge of the pressure responsive element is spaced from a top surface of the filter basket to allow flow of water between the top surface of the filter basket and the bottom edge of the pressure responsive member and up the riser and a closed position where the bottom edge of the pressure responsive member contacts the top surface of the filter basket to prevent water from flowing;
- wherein the pressure responsive member is biased in the open position and moves into the closed position when water pressure downstream of the pressure responsive element exceeds a predetermined value.
A pressure regulator for use in a sprinkler assembly including a riser and a sprinkler basket mounted at a bottom of the riser comprises:
- an outer sleeve mounted on an interior wall of the riser at an inlet thereof;
- and
- a pressure responsive member, movably mounted in the outer sleeve and movable from an open position in which a bottom edge of the pressure responsive element is spaced from a top surface of the filter basket to allow flow of water between the top surface of the filter basket and the bottom edge of the pressure responsive member and up the riser and a closed position where the bottom edge of the pressure responsive member contacts the top surface of the filter basket to prevent water from flowing;
- wherein the pressure responsive member is biased in the open position and moves into the closed position when water pressure downstream of the pressure responsive element exceeds a predetermined value.
Dependencies are inferred from the claim text.