Abstract: A piston-type differential pressure gauge provides an electronic output for remote monitoring. A linear potentiometer, in communication with a magnetic portion of the piston of the gauge, tracks the location of the piston. Resistance change in the potentiometer can be used by an electronic circuit to provide the electronic output of the differential pressure remotely to a data acquisition system or control electronics.

Abstract: A sensing system includes a housing having an inlet for receiving a fluid flow from a source and an outlet with for directing a fluid flow from the housing, wherein a longitudinal axis transverses a center of the inlet and the outlet; a flow conduit disposed in the housing and in fluid communication with the inlet and the outlet, the flow conduit having a cross-sectional area that is substantially the same as a cross-sectional area of the inlet and the outlet, wherein a first length of the flow conduit along a second axis, and wherein the first axis and the second axis are perpendicular to the longitudinal axis; a light source for illuminating the fluid in the flow conduit along the first axis; and a sensor for detecting contaminants in the fluid.

Abstract: A piston-type differential pressure gauge provides an electronic output for remote monitoring. A linear potentiometer, in communication with a magnetic portion of the piston of the gauge, tracks the location of the piston. Resistance change in the potentiometer can be used by an electronic circuit to provide the electronic output of the differential pressure remotely to a data acquisition system or control electronics.

Abstract: A sensing system includes a housing having an inlet for receiving a fluid flow from a source and an outlet with for directing a fluid flow from the housing, wherein a longitudinal axis transverses a center of the inlet and the outlet; a flow conduit disposed in the housing and in fluid communication with the inlet and the outlet, the flow conduit having a cross-sectional area that is substantially the same as a cross-sectional area of the inlet and the outlet, wherein a first length of the flow conduit along a second axis, and wherein the first axis and the second axis are perpendicular to the longitudinal axis; a light source for illuminating the fluid in the flow conduit along the first axis; and a sensor for detecting contaminants in the fluid.

Abstract: A filter coalescer cartridge for treating jet fuels is disclosed. The filter coalescer cartridge has spaced apart filter/coalescer layers to effectively remove particulate contaminates and water from the transient fuel being treated. The outer most layer is a knitted sock material formed from cotton threads including a metallic silver disposed thereon to provide an anti-microbial property to the sock material.

Abstract: A passive device to neutralize electrostatic charging of fuel when it exists a filter monitor cartridge is described. Filter cartridges containing light filter media generate electrostatic charges, which flow with the fuel as it exists the filter. The device neutralizes the charges as the charges fuel exits the filter/monitor using corona discharge.

Abstract: A filter comprises a paper layer, at least one outer particle filtering layer adjacent the paper layer, an ion exchange layer adjacent the at least one outer particle filtering layer, at least one outer non-woven layer adjacent the ion exchange layer, at least one salt-tolerant superabsorbant polymer layer adjacent the at least one outer non-woven layer, an inner particle filtering layer adjacent the at least one salt-tolerant superabsorbant polymer layer, an inner non-woven layer adjacent the inner particle filtering layer, and a support adjacent the inner non-woven layer.

Abstract: A hydrocarbon fluid filter monitor cartridge having apparatus for neutralizing the electrostatic charge in the transient fluid including a mass of filter material, and electrical conductor having a main conductive path and a plurality of cooperating electrically conductive paths extending from the main conductive path, and means for directing the flow of hydrocarbon fluid to be treated through the mass of filter material and in contact with the conductor whereby the electrostatic charge in the transient fluid is neutralized by corona discharge.

Abstract: A passive device to neutralize electrostatic charging of transient hydrocarbon fluid when it exits a filter monitor cartridge is described.

Abstract: A passive device to neutralize electrostatic charging of fuel when it exists a filter monitor cartridge is described. Filter cartridges containing light filter media generate electrostatic charges, which flow with the fuel as it exists the filter. The device neutralizes the charges as the charges fuel exits the filter/monitor using corona discharge.

Abstract: A filter coalescer cartridge for treating jet fuels comprising spaced apart filter/coalescer layers to effectively remove particulate contaminants and water from the transient fuel being treated.

Abstract: A separator cartridge comprises a support screen comprising a substantially rigid reinforced plastic cylinder including an inner first major surface and an outer second major surface, a first nonwoven polymer layer adhered to the inner first major surface of the support screen, a second nonwoven polymer layer adhered to the outer second major surface of the support screen, and a polymeric screen contacting and frictionally engaging the second nonwoven polymer layer, the polymeric screen including a hydrophobic coating.

Abstract: A separator cartridge comprises a support screen comprising a substantially rigid reinforced plastic cylinder including an inner first major surface and an outer second major surface, a first nonwoven polymer layer adhered to the inner first major surface of the support screen, a second nonwoven polymer layer adhered to the outer second major surface of the support screen, and a polymeric screen contacting and frictionally engaging the second nonwoven polymer layer, the polymeric screen including a hydrophobic coating. The invention also contemplates a process for preparing the separator cartridge.

Abstract: Apparatus for removing water from a dielectric oil includes first and second spaced-apart electrically conductive walls, a bed of molecular sieves between the first and second walls, and a device for measuring the capacitance across the bed of molecular sieves between the first and second walls.

Abstract: A method and apparatus for determining the presence of surfactants in a liquid, such as a jet fuel or diesel fuel, by using the capillary rise technique, wherein an enclosed evacuated space is provided which is partially filled with water. A capillary tube is provided in the enclosed evacuated space having one of its ends submerged in the water. The liquid whose interfacial tension is to be measured is introduced into the evacuated space and the amount of rise in the capillary tube is measured. From the amount of rise in the capillary tube, the interfacial tension can be calculated. A high interfacial tension generally indicates the absence of surfactants which can affect the operation of coalescing filters which are designed to remove water from jet or diesel fuel before use.

Abstract: The present invention is directed to a fuel filter dehydrator apparatus for a fuel system which coalesces and retains residual water within the fuel filter. The device comprises a plurality of fuel filter dehydrator elements and a container for housing the filter elements. The container defines a fuel inlet and a fuel outlet for directing fuel through the filter dehydrator elements. Each of the filter dehydrator elements comprises a rigid, porous tube having a water retaining cellulose fiber sheet and water coalescing fiberglass layer wrapped therearound. The fiberglass coalesces water droplets in the fuel passing through the element and then releases the coalesced water to the cellulose fiber sheet. As the cellulose sheet becomes water saturated, its fluid permeability sharply decreases, automatically shutting off fuel flow therethrough. Residence of water in the fiberglass layer substantially adds to the water retaining capacity of each fuel filter dehydrator element.

Abstract: A gravity separator for separating two immiscible liquids of different specific gravities and particularly for separating oil from water. The separator is composed of a horizontal, generally cylindrical closed vessel and water is pumped into an inlet in the vessel, and clarified water is discharged through an outlet. In addition, an oil drain line is connected to the upper end of the vessel. Located within the vessel is a cylindrical assembly of generally parallel inclined separator plates. The assembly of separator plates is freely positioned within the vessel and means is provided to prevent rotation and axial movement of the plate assembly within the vessel. A liquid level sensor extends downwardly through aligned openings in the assembly plates, and when the oil level reaches a predetermined maximum depth, the sensor actuates a draining system to drain the oil from the vessel.