Low-flow emitter
AssigneeAria Products L.L.C.
InventorDaniel Chun WANG
Life of this patent
Estimating the term…
Abstract
A low-flow emitter includes a first housing and a second housing. The first housing includes a first thread portion, and a first passage defined in the first thread portion. The second housing includes a second thread portion, and a second passage defined in the second thread portion corresponding with the first thread portion in a thread connection. Part of the thread connection between the first and second housings is a loose fitting thread connection. A spiral passage is formed along the loose fitting thread connection between the first and second housings. Water flow rate is able to be controlled by a rotation of the first housing with respect to the second housing.
Claims13
A low-flow emitter comprising:
- a first housing including a thread bore and a first thread portion, the first thread portion is formed on the thread bore;
- the first thread portion including a first thread section and a second thread section;
- a second housing including a thread axle and a second thread portion, the second thread portion is formed on the thread axle;
- the second thread portion including a third thread section corresponding with the first thread section of the first thread portion of the first housing, and a fourth thread section corresponding with the second thread section of the first thread portion of the first housing;
- the second housing connecting the first housing while the fourth thread section of the second thread portion of the second housing engaging with the second thread section of the first thread portion of the first housing;
- a spiral passage defined between the third thread section of the second thread portion of the second housing and the first thread section of the first thread portion of the first housing;
- a first passage formed on the first housing and communicating with the spiral passage;
- and
- a second passage formed on the second housing and communicating with the spiral passage, and the spiral passage via an orifice radially formed on the second thread portion;
- wherein the thread bore defines a diameter which increases in a direction away from the first passage;
- wherein the thread axle defines a diameter which increases in a direction away from the first passage;
- wherein the water flows from the second passage through the orifice to the spiral passage, and then enters the first passage for water distribution.
Dependencies are inferred from the claim text.