Abstract: A heat resistant countertop or a heat resistant three dimensional shape product comprising a composition comprising at least one aggregate, at least one cement, at least one fine material, at least one dispersant, and at least one viscosity modifier, and optionally at least one set retarder, and optionally at least one set accelerator. A heat resistant countertop or a heat resistant three dimensional shape product comprising a calcium aluminate cement hydraulic binder and matrix is provided.

Abstract: A multi-function sensor system comprises a dual-axis electromagnetic speed sensor and a depth transducer to enable various underwater or marine measurements to be achieved in a single unit thus reducing the space required on a vessel and the cost of having such multiple functions.

Abstract: The present invention provides for a solid body composition that is able to withstand penetration and/or reaction with salts or salt compositions in one or more states of matter (solid, liquid, gas). The composition comprises at least one aggregate and at least one binder. The aggregate may be chosen based on its thermodynamic stability compared to a salt composition. The binder comprises a resol resin or a novolac resin, or a combination of one or more of a resol resin and one or more of a novolac resin. The resin binder sets to provide initial strength then is pyrolized to form a glassy carbon which acts as a barrier to a salt phase or phases of an industrial process.

Abstract: A multi-function sensor system comprises a dual-axis electromagnetic speed sensor and a depth transducer to enable various underwater or marine measurements to be achieved in a single unit thus reducing the space required on a vessel and the cost of having such multiple functions.

Abstract: A method for improving the insulating character/and or penetration resistance of a surface comprising lining a surface of a lime kiln, a cement kiln, a roasting kiln, a thermal oxidizer, or a fluidized bed reactor that is subject to wear by an alkali environment and/or an alkaline environment with a refractory composition comprising a refractory aggregate consisting essentially of a calcium hexa aluminate clinker having the formula CA6, wherein C is equal to calcium oxide, wherein A is equal to aluminum oxide, and wherein the hexa aluminate clinker has from zero to less than about fifty weight percent C12A7, and wherein greater than 98 weight percent of the calcium hexa aluminate clinker having a particle size ranging from ?20 microns to +3 millimeters, for forming a liner of the surface.

Abstract: A precipitation sensor including a cantilevered sensor member having a cantilevered portion and an upper and a lower surface extending on opposite sides of the cantilevered portion. The sensor member can receive falling precipitation on the upper surface and vibrate when struck by such precipitation. The cantilevered portion can have outer perimeter edges that are sloped downwardly for shedding the precipitation off the cantilevered portion. An electromechanical sensor can be incorporated with at least a part of the cantilevered portion of the sensor member for sensing the vibrations of the sensor member caused by the precipitation, and generating an electrical response from which precipitation properties can be determined. A support structure can be connected to the lower surface of the cantilevered portion at about a central region of the sensor member for supporting the sensor member. The cantilevered portion extends outwardly beyond the support structure.

Abstract: A precipitation sensor including a cantilevered sensor member having a cantilevered portion and an upper and a lower surface extending on opposite sides of the cantilevered portion. The sensor member can receive falling precipitation on the upper surface and vibrate when struck by such precipitation. The cantilevered portion can have outer perimeter edges that are sloped downwardly for shedding the precipitation off the cantilevered portion. An electromechanical sensor can be incorporated with at least a part of the cantilevered portion of the sensor member for sensing the vibrations of the sensor member caused by the precipitation, and generating an electrical response from which precipitation properties can be determined. A support structure can be connected to the lower surface of the cantilevered portion at about a central region of the sensor member for supporting the sensor member. The cantilevered portion extends outwardly beyond the support structure.

Abstract: A precipitation sensor including a cantilevered sensor member having a cantilevered portion and an upper and a lower surface extending on opposite sides of the cantilevered portion. The sensor member can receive falling precipitation on the upper surface and vibrate when struck by such precipitation. The cantilevered portion can have outer perimeter edges that are sloped downwardly for shedding the precipitation off the cantilevered portion. An electromechanical sensor can be incorporated with at least a part of the cantilevered portion of the sensor member for sensing the vibrations of the sensor member caused by the precipitation, and generating an electrical response from which precipitation properties can be determined. A support structure can be connected to the lower surface of the cantilevered portion at about a central region of the sensor member for supporting the sensor member. The cantilevered portion extends outwardly beyond the support structure.

Abstract: A method for improving the insulating character/and or penetration resistance of a surface comprising lining a surface of a lime kiln, a cement kiln, a roasting kiln, a thermal oxidizer, or a fluidized bed reactor that is subject to wear by an alkali environment and/or an alkaline environment with a refractory composition comprising a refractory aggregate consisting essentially of a calcium hexa aluminate clinker having the formula CA6, wherein C is equal to calcium oxide, wherein A is equal to aluminum oxide, and wherein the hexa aluminate clinker has from zero to less than about fifty weight percent C12A7, and wherein greater than 98 weight percent of the calcium hexa aluminate clinker having a particle size ranging from ?20 microns to +3 millimeters, for forming a liner of the surface.

Abstract: A method for improving the insulating character/and or penetration resistance of a liner in contact with at least one of an alkali and/or alkaline environments is provided. The method comprises lining a surface that is subject to wear by an alkali environment and/or an alkaline environment with a refractory composition comprising a refractory aggregate consisting essentially of a calcium hexa aluminate clinker having the formula CA6, wherein C is equal to calcium oxide, wherein A is equal to aluminum oxide, and wherein the hexa aluminate clinker has from zero to less than about fifty weight percent C12A7, and wherein greater than 98 weight percent of the calcium hexa aluminate clinker having a particle size ranging from ?20 microns to +3 millimeters, for forming a liner of the surface. This method improves the insulating character/and or penetration resistance of the liner.

Abstract: A precipitation sensor including a cantilevered sensor member having a cantilevered portion and an upper and a lower surface extending on opposite sides of the cantilevered portion. The sensor member can receive falling precipitation on the upper surface and vibrate when struck by such precipitation. The cantilevered portion can have outer perimeter edges that are sloped downwardly for shedding the precipitation off the cantilevered portion. An electromechanical sensor can be incorporated with at least a part of the cantilevered portion of the sensor member for sensing the vibrations of the sensor member caused by the precipitation, and generating an electrical response from which precipitation properties can be determined. A support structure can be connected to the lower surface of the cantilevered portion at about a central region of the sensor member for supporting the sensor member. The cantilevered portion extends outwardly beyond the support structure.

Abstract: A transducer assembly including a fan beam transducer having a beam generation axis for generating a fan shaped acoustic beam along the beam generation axis. The fan shaped acoustic beam can have a generally elliptical cross sectional shape with a major axis and a minor axis across a plane generally perpendicular to the beam generation axis. The transducer can be housed in a housing and have a direction of travel axis. The fan shaped acoustic beam can be rotatable relative to the direction of travel axis. The housing can have a release locking arrangement for rotationally releasing and locking the position of the fan shaped acoustic beam for orienting at least one of the major axis and minor axis of the fan shaped acoustic beam at a desired position relative to the direction of travel axis.

Abstract: An underwater camera assembly including a through hull housing having a passage extending therethrough. A flexible camera insert is positioned within the passage of the through hull housing and has a first end with a viewing window secured thereto, and a first sealing region for sealing the passage in a water tight manner.

Abstract: A transducer assembly including a fan beam transducer having a beam generation axis for generating a fan shaped acoustic beam along the beam generation axis. The fan shaped acoustic beam can have a generally elliptical cross sectional shape with a major axis and a minor axis across a plane generally perpendicular to the beam generation axis. The transducer can be housed in a housing and have a direction of travel axis. The fan shaped acoustic beam can be rotatable relative to the direction of travel axis. The housing can have a release locking arrangement for rotationally releasing and locking the position of the fan shaped acoustic beam for orienting at least one of the major axis and minor axis of the fan shaped acoustic beam at a desired position relative to the direction of travel axis.

Abstract: An underwater camera assembly including a through hull housing having a passage extending therethrough. A flexible camera insert is positioned within the passage of the through hull housing and has a first end with a viewing window secured thereto, and a first sealing region for sealing the passage in a water tight manner.

Abstract: A method for improving the insulating character/and or penetration resistance of a liner in contact with at least one of an alkali and/or alkaline environments is provided. The method comprises lining a surface that is subject to wear by an alkali environment and/or an alkaline environment with a refractory composition comprising a refractory aggregate consisting essentially of a calcium hexa aluminate clinker having the formula CA6, wherein C is equal to calcium oxide, wherein A is equal to aluminum oxide, and wherein the hexa aluminate clinker has from zero to less than about fifty weight percent C12A7, and wherein greater than 98 weight percent of the calcium hexa aluminate clinker having a particle size ranging from ?20 microns to +3 millimeters, for forming a liner of the surface. This method improves the insulating character/and or penetration resistance of the liner.

Abstract: A marine sensor device mounts in a single opening in a hull of a marine vessel. The sensor includes a housing secured in the opening. Positioned within the housing is a body containing at least two sensors. The body is removable from the housing. A magnetized paddlewheel can be disposed in a first cavity formed on a first half of the body, the paddlewheel has a plurality of paddles extending from a circular central hub and rotatably mounted on an axle extending transverse a fore and aft direction of travel of the vessel. A magnetic sensor can be located adjacent the paddles, the magnetic sensor senses the rotation of the paddles and provides speed indications. The magnetic sensor can be a Hall-effect device. A sonic transducer for depth detection can be disposed within a second cavity formed on a second half of the body. A thermal sensor for sensing water temperature can be disposed in a well formed in the body.

Abstract: A marine sensor device mounts in a single opening in a hull of a marine vessel. The sensor includes a housing secured in the opening. Positioned within the housing is a body containing at least two sensors. The body is removable from the housing. A magnetized paddlewheel can be disposed in a first cavity formed on a first half of the body, the paddlewheel has a plurality of paddles extending from a circular central hub and rotatably mounted on an axle extending transverse a fore and aft direction of travel of the vessel. A magnetic sensor can be located adjacent the paddles, the magnetic sensor senses the rotation of the paddles and provides speed indications. The magnetic sensor can be a Hall-effect device. A sonic transducer for depth detection can be disposed within a second cavity formed on a second half of the body. A thermal sensor for sensing water temperature can be disposed in a well formed in the body.

Abstract: An essentially non-slumping sprayable refractory castable composition that is applied without forms is disclosed comprising (a) a tempered, pumpable first component comprising (i) one hundred weight percent of a refractory composition comprising from about 60 to 90 weight percent of a refractory aggregate, from about 2 to 25 weight percent of an ultrafine refractory material having an average particle diameter size less than or equal to about 3 microns, from about 0.5 to 15 weight percent of a binder, and from about 0.05 to 2.

Abstract: An essentially non-slumping sprayable refractory castable composition that is applied without forms is disclosed comprising (a) a tempered, pumpable first component comprising (i) one hundred weight percent of a refractory composition comprising from about 60 to 90 weight percent of a refractory aggregate, from about 2 to 25 weight percent of an ultrafine refractory material having an average particle diameter size less than or equal to about 3 microns, from about 0.5 to 15 weight percent of a binder, and from about 0.05 to 2.