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US 7,024,945 B2Granted
Flow sensing apparatus
AssigneeCompumedics Limited
InventorAllan Wallace
Life of this patent
Estimating the term…
Abstract
A flow sensing apparatus for detecting fluid flow rate and direction is described. The flow sensing apparatus includes a flow-responsive element projecting into the fluid flow path, and a position sensor which detects the degree and direction of any change in position of the flow responsive element in response to the fluid flow.
Claims8
A fluid flow sensing apparatus comprising:
- a flow-responsive element projecting into a fluid flow path, the flow-responsive element including a paddle section and a torsion strip section
- a magnet coupled to the flow-responsive element and adapted to be displaced in response to the torque level generated by the flow-responsive element;
- and
- a sensor for detecting a change in position of the magnet.
1 more element
A flow sensing apparatus comprising:
- a mask portion;
- a hose, the hose cooperating with the mask portion to define an air pathway;
- a deformable element projecting into the air pathway;
- a magnet coupled to the deformable element;
- and
- a sensor adapted to detect a position change of the magnet.
3 more elements
A flow sensing apparatus comprising:
- a mask portion;
- a hose, the hose cooperating with the mask portion to define an air pathway;
- a deformable element projecting into the air pathway, wherein the deformable element includes a paddle section and a torsion strip;
- a magnet coupled to the deformable element;
- and
- a sensor adapted to detect a position change of the magnet.
3 more elements
A flow sensing apparatus comprising:
- a fluid pathway;
- a deformable element projecting into the fluid pathway, the deformable element including a paddle section and a torsion strip section;
- a magnet coupled to the torsion strip section;
- and
- a sensor adapted to detect movement of the magnet.
2 more elements
Dependencies are inferred from the claim text.