Electronic gauge for interface measurements
OwnerRoni K. Doakinventor
Life of this patent
Estimating the term…
Abstract
The interface gauge includes at least one transducer for sensing the interface between two media within a reservoir. An elongated flat member has at least one transverse bore. A transducer is loosely contained within the bore. Conductors connect the transducer to a signal comparator and logic network for monitoring an impedance change in the transducer in response to a change in the interface within the reservoir. The gauge can replace conventional mechanical dipsticks in factory made dipstick tubes for crankcases and automatic transmissions in order to monitor oil and transmission fluid levels.
Claims19
An interface gauge, comprising:
- at least one transducer for sensing the level of an interface between two media within a reservoir;
- an elongated flat member having opposite faces and begin made of a dielectric flexible material which is easily deformable in a direction perpendicular to its longitudinal axis;
- said member defining between said opposite faces at least one transverse bore dimensioned for loosely containing said transducer therewithin;
- a logic network;
- a cable including conductor means for connecting said transducer to said logic network;
- said conductor means including printed conductors on said dielectric material;
- a pair of wires for connecting said transducer to said printed conductors;
- and
- a signal comparator coupled to said network, and said comparator having means for signaling a change in said interface level.
An interface gauge, comprising:
- at least one transducer for sensing the level of an interface between two fluid media within a reservoir;
- an elongated flat member having opposite faces and being made of a flexible material which is easily deformable in a direction perpendicular to its longitudinal axis;
- said member defining between said opposite faces at lest one transverse bore dimensioned for containing said transducer therewithin so as to permit fluid circulation all around its exterior walls;
- conductor means on said flat member and galvanic means for connecting said transducer in said bore to said conductor means;
- and
- said transverse bore being dimensioned to allow relative motion between said transducer and said flat member.
An interface gauge, comprising:
- at least two transducers for sensing the level of an interface between two media within a reservoir;
- an elongated flat member having opposite faces and being made of a dielectric flexible material which is easily deformable in a direction perpendicular to its longitudinal axis;
- said member defining between said opposite faces at lest tow longitudinally-sapced, transverse bores, each bore being dimensioned for loosely containing one of is a transducers therewithin so as to permit fluid circulation all around its exterior walls;
- cable means including printed conductors on said dielectric material;
- and
- a pair of wires for connecting each transducer to said printed conductors.
Dependencies are inferred from the claim text.