Liquid level sensing device

Patent · Tue Aug 11 00:00:00 EDT 1987

OSTI ID:6091713

Betterton, J T; Glover, A H

A liquid level transducer is described for fuel tanks and the like comprising: an elongated tubular housing having an axis being of electrically conductive material including means for facilitating the liquid flow into and out of its interior as liquid levels change thereabout; means supporting the elongated tubular housing in the liquid with the axis thereof vertically oriented; an elongated and normally flat resistor card of relatively flexible material supported in the tubular housing; an electrically conductive sphere within the tubular housing positioned between the resistor card and an interior surface of the housing and being buoyed by the liquid to move along the surface of the resistor card in the direction of the housing axis as the liquid level changes; the flexible resistor card having a width dimension greater than the interior dimension of the tubular housing thereby causing the resistor card to be flexed from a normally flat configuration to a curved configuration forming a shallow channel parallel to the housing axis, whereby the sphere moves along the channel and is pressed against the housing by the resilient forces of the flexed resistor card tending to return the card to a normally flat configuration.

• Assignee: Chrysler Motors Corp., Highland Park, MI
• Patent Number(s): US 4685332
• OSTI ID: 6091713
• Resource Relation: Patent File Date: Filed date 7 Jul 1986
• Country of Publication: United States
• Language: English

Related Subjects

33 ADVANCED PROPULSION SYSTEMS
ENGINES
FUEL SYSTEMS
LEVEL INDICATORS
VEHICLES
TANKS
ELECTRIC CONDUCTIVITY
LIQUID FLOW
RESISTORS
TRANSDUCERS
CONTAINERS
ELECTRICAL EQUIPMENT
ELECTRICAL PROPERTIES
EQUIPMENT
FLUID FLOW
MEASURING INSTRUMENTS
PHYSICAL PROPERTIES
330603* - Vehicle Design Factors- Engine System