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US 9,539,674 B2Granted
Clog resistant valve port and methods relating to same
AssigneeRain Bird Corporation
InventorSamuel C. Walker
Life of this patent
Estimating the term…
Abstract
An irrigation valve has a valve body with an inlet passage, an outlet passage, a valve seat intermediate the inlet passage and the outlet passage and a control chamber exit or bypass passage terminating in a surface that defines a portion of the outlet passage, the valve body including at least one of a recess and a rib for hindering clogging of the bypass passage. Related methods for hindering clogging of the control chamber or exit bypass passage are also disclosed.
Claims13
A clog resistant valve body comprising:
- an inlet passage;
- an outlet passage having a longitudinal axis and a stop positioned therein for ceasing forward progress of a pipe inserted into the outlet passage, the stop defining at least one recess;
- a valve seat intermediate the inlet passage and outlet passage;
- a bypass passage positioned generally transverse to the longitudinal axis of the outlet passage and terminating at one end proximate the at least one recess so that the at least one recess helps prevent adhesive from clogging the bypass passage;
- wherein the stop defines a flat wall extending from an inner surface of the valve body and having a downstream face that faces a downstream opening of the outlet passage, the stop together with the inner surface defining the outlet passage and a recess forming a depression in the downstream face of the stop and extending upstream therefrom to surround the bypass passage on at least three sides.
2 more elements
A clog resistant valve body comprising:
- an inlet passage;
- an outlet passage having a longitudinal axis and a stop positioned therein for ceasing forward progress of a pipe inserted into the outlet passage, the stop defining at least one of a recess and a rib;
- a valve seat intermediate the inlet passage and outlet passage;
- a bypass passage positioned generally transverse to the longitudinal axis of the outlet passage and terminating at one end proximate the at least one of a recess and a rib so that the at least one of a recess and a rib help prevent adhesive from clogging the bypass passage;
- wherein the stop defines a flat wall extending from an inner surface of the valve body and having a downstream face that faces a downstream opening of the outlet passage, the stop together with the inner surface defining the outlet passage and the recess forming a depression in the outlet passage that surrounds the bypass passage on at least three sides;
- wherein the stop defines first and second side walls and a recessed upstream wall located between the first and second side walls to form the depression surrounding the bypass passage on three sides, the depression leaving an unobstructed downstream passage for fluid exiting the bypass passage to flow through unobstructed while positioning the side walls close enough to one another to prevent an adhesive applicator from coming into contact with the bypass passage;
- wherein the stop defines a plurality of ribs extending from the outlet passage about the outlet passage, the plurality of ribs comprises a first rib positioned proximate and on one side of the bypass passage and a second rib positioned proximate and on another side of the bypass passage opposite the first, with the first and second ribs being positioned close enough to one another to prevent the adhesive applicator from coming into contact with the bypass passage.
4 more elements
A clog resistant valve body comprising:
- an inlet passage;
- an outlet passage having a longitudinal axis and a stop positioned therein for ceasing forward progress of a pipe inserted into the outlet passage;
- a valve seat intermediate the inlet passage and outlet passage;
- a bypass passage positioned generally transverse to the longitudinal axis of the outlet passage and terminating at one end proximate the at least one of a recess and a rib so that the at least one of a recess and a rib help prevent adhesive from clogging the bypass passage;
- wherein the stop defines a plurality of ribs extending from the outlet passage positioned proximate the bypass passage, the plurality of ribs comprises a first rib positioned proximate and on one side of the bypass passage and a second rib positioned proximate and on another side of the bypass passage opposite the first, with the first and second ribs being positioned close enough to one another to prevent the adhesive applicator from coming into contact with the bypass passage.
2 more elements
A method of hindering clogging of a bypass passage in a diaphragm valve comprising:
- molding a valve body having an inlet passage, an outlet passage, a valve seat intermediate the inlet passage and the outlet passage, and a bypass passage terminating in a surface that defines the outlet passage;
- and
- adding a plurality of ribs proximate the bypass passage to deflect the adhesive applicator away from the bypass passage and wick or draw adhesive away from the bypass passage to prevent partial or total clogging of the bypass passage.
A valve comprising:
- a body defining an inlet and an outlet;
- a valve operating in the body between an open position permitting flow from the inlet to the outlet and a closed position preventing flow between the inlet and the outlet;
- a control chamber communicating with the valve to permit the valve to move between the open and closed positions;
- a control passage communicating with the control chamber and the outlet, the control passage terminating at the outlet with a control hole;
- and
- at least three walls, each with a surface facing the control hole to protect the control hole from being blocked and at least two walls being parallel to one another, the at least three walls defining a recess at the control hole and an unobstructed downstream opening to allow fluid escaping the control hole to continue traveling downstream in an unobstructed manner, with the three walls being positioned upstream of the downstream opening to assist in guiding the fluid escaping the control hole downstream and at least two of the walls assisting in blocking access to the control hole to prevent clogging of same.
3 more elements
A valve comprising:
- a body defining an inlet and an outlet;
- a valve operating in the body between an open position permitting flow from the inlet to the outlet and a closed position preventing flow between the inlet and the outlet;
- a control chamber communicating with the valve to permit the valve to move between the open and closed positions;
- a control passage communicating with the control chamber and the outlet, the control passage terminating at the outlet with a control hole;
- and
- at least two walls, each with a surface facing the control hole to protect the control hole from being blocked, wherein the at least two walls include ribs extending adjacent the control hole and beyond adjacent surfaces to form obstructions assisting in blocking access to the control hole to prevent clogging of same.
3 more elements
Dependencies are inferred from the claim text.