Back to results
US 3,946,177 AGranted
Liquid-level sensor utilizing ferromagnetic fluid
AssigneeThe Bendix Corporation
InventorJohn Paul Carrico
Life of this patent
Estimating the term…
Abstract
The invention is directed to a liquid-level sensor utilizing a ferromagnetic fluid. The magnetic characteristics of the fluid are utilized in a magnetic circuit which generates the output signal and are also useful in the mechanical operation of the sensor. The magnetic characteristics of the ferromagnetic fluid, therefore, serve a twofold purpose in the inventive sensor.
Claims5
A liquid level detector comprising:
- a magnetic member;
- a casing member, said magnetic member and said casing member being arranged for relative movement and having a clearance space between said members;
- a ferromagnetic fluid disposed in said clearance space and retained by the magnetic field of said magnetic member;
- and
- sensor means supported by said casing member for providing a signal representative of the relative position of said members.
2 more elements
Dependencies are inferred from the claim text.