Flow transducer
AssigneeInteractive Design Inc.
InventorsEdmund G. Laviano, Gerald S. Lefebvre
Life of this patent
Estimating the term…
Abstract
A flow transducer for measuring the flow of a fluid, the transducer including a housing having two spaced apart depending legs with a shaft rotatably mounted between the legs, and a rotor secured on the shaft for rotation by the flow of fluid thereacross. In one of the legs is provided a chamber which houses a magnetic device also secured on the shaft for rotation with the rotor. The magnetic device produces a change in a magnetic characteristic as a function of the rotation of the rotor. A suitable sensor is contained in the housing adjacent to the magnetic device, and produces an electrical output responsive to the change in the magnetic characteristic.
Claims13
A flow transducer for measuring the flow of a fluid, said transducer comprising:
- a housing having two spaced apart depending legs;
- a shaft rotatably mounted between said legs;
- a rotor secured on said shaft for rotation therewith, and being freely rotatable between said legs by means of the flow of fluid thereacross;
- a chamber provided in one of said legs with a portion of said shaft passing into said chamber;
- trigger means secured on said shaft portion for rotation therewith, and being retained in said chamber for producing a change in a measurable characteristic as a function of the rotation of said rotor;
- sensor means contained in said housing adjacent to said trigger means, and producing an electrical output responsive to said change in the measurable characteristic;
- said rotor including a paddle wheel having a plurality of thin blades radially extending from a central hub;
- and
- a distal end of each blade being angularly shaped curving toward one side edge of said blade.
A flow transducer for measuring the flow of a fluid, said transducer comprising:
- a housing having two spaced apart depending legs;
- a shaft rotatably mounted between said legs;
- a rotor secured on said shaft for rotation therewith, and being freely rotatable between said legs by means of the flow of fluid thereacross;
- a chamber provided in one of said legs with a portion of said shaft passing into said chamber;
- trigger means secured on said shaft portion for rotation therewith, and being retained in said chamber for producing a change in a measurable characteristic as a function of the rotation of said rotor;
- sensor means contained in said housing adjacent to said trigger means, and producing an electrical output responsive to said change in the measurable characteristic;
- said housing including a seat portion for accommodating said sensor means;
- and
- rib means for retaining said sensor means in said seat portion.
Dependencies are inferred from the claim text.