Fluid flow rate selector
AssigneeLitton Systems, Inc.
InventorsLyle Berkenbosch, Sammy K. Mickelson
Life of this patent
Estimating the term…
Abstract
The present invention is directed to a flow rate selector having a high flow position and a low flow position. The flow rate selector has a flow selector knob having a web. The web has a flat surface. At least two seals are mounted on the flat surface of the web. A retaining piece has two orifices of differing cross-sectional areas. The flow selector knob is rotatable relative to the retaining piece such that at least one seal can be aligned with either of the orifices to prevent fluid flow there through while allowing fluid flow through the other orifice. Cover 656 has conical outside diameter that seals against chamber in 654. This protects chamber 720 from foreign particles.
Claims28
A flow rate selector having a high flow position and a low flow position, said flow rate selector comprising:
- a flow selector knob having a web, said web having a flat surface;
- at least two seals mounted on said flat surface of said web;
- and
- a retaining piece having two orifices of differing cross-sectional areas;
- wherein said flow selector knob is rotatable relative to said retaining piece such that at least one seal can be aligned with either of said orifices to prevent fluid flow there through while allowing fluid flow through the other orifice.
A flow rate selector having a high flow position and a low flow position, said flow rate selector comprising:
- a flow selector knob having a web, said web having a flat surface;
- a seal mounted on said flat surface of said web;
- a force balancing element mounted on said flat surface of said web;
- and
- a retaining piece having two orifices of differing cross-sectional areas;
- wherein said flow selector knob is rotatable relative to said retaining piece such that the seal can be aligned with either of the orifices to prevent fluid flow there through while allowing fluid flow through the other orifice.
A flow rate selector having a high flow position and a low flow position, said flow rate selector comprising:
- a flow selector knob having a web, said web having a flat surface;
- a seal mounted on said flat surface of said web;
- a force balancing element mounted on said flat surface of said web;
- and
- an outer shell having two orifices of differing cross-sectional areas located an equal distance from a center of the outer shell, said outer shell also having a cylindrical extension enclosing part of the flow selector knob;
- wherein said flow selector knob is rotatable relative to said outer shell such that the seal can be aligned with either of the orifices to prevent fluid flow there through while allowing fluid flow through the other orifice.
Dependencies are inferred from the claim text.