Class 73/61.51 - Buoyant detector

Subclass of Class 73 - Measuring and testing
Definition: Subject matter wherein the detector floats on the surface
No. of patents: 38
Last issue date: 06/22/2010

Number	Title	Issue Date
7739902	Portable solution detector for identifying chemical solutions including from chemical spills A detector and detection method for identifying unknown chemical solutions following chemical spills includes a specific gravity detector including a detector column having an inlet end operable to collect a sample of a solution, wherein the detector column is forme...	06/22/2010
7690247	Autonomous biobuoy for detecting a characteristic of a marine biosphere and method of assembling the biobuoy Autonomous biobuoy for detecting a characteristic of a marine biosphere and method of assembling the biobuoy. An autonomous biobuoy is provided for detecting a characteristic of a marine biosphere, comprising a detector assembly for detecting the characteristic of t...	04/06/2010
7409853	Floatable housing for in situ water monitoring system An electronic system for use in a body of fluid is disclosed. The electronic system includes a first housing element and a second housing element. The second housing element is hermetically sealed to the first housing element, forming a first chamber there between. ...	08/12/2008
7258836	Freeze resistant buoy system A freeze resistant buoy system includes a tail-tube buoy having a thermally insulated section disposed predominantly above a waterline, and a thermo-siphon disposed predominantly below the waterline. ...	08/21/2007
7097353	Method and device for indicating temperature Disclosed is a temperature indicating method and device. The device embodies a sealed tube containing a liquid and a float. The tube has markings on the exterior indicating temperature zones or, in the alternative, temperature gradients. The method disclosed include...	08/29/2006
6452500	Hydrocarbon sensing apparatus An apparatus for monitoring presence of hydrocarbon-based fluid is disclosed. It includes a body and a sensing cable mounted on the body in a wave-like shape, thus forming a plurality of sensing sections for detecting a layer of hydrocarbon on water. When...	09/17/2002
6427529	Instrument for surveying the depth and volume of oil and brine in a static fluid column of an oil well An instrument and method for surveying the static fluid column of a cased oil well and measuring the volume of oil and brine in the fluid column is disclosed. The instrument uses the inherent differences in specific gravity between water, oil and brine to...	08/06/2002
6405581	Apparatus for measuring the contents of foreign matters in a fluid Apparatus for measuring the contents of foreign matters in a fluid, in particular a buoyant apparatus, which has a housing (1) of thermoplastic synthetic material and a hole (4) in the first wall section (2) and a through-hole (5) in a second wall section...	06/18/2002
6363770	Apparatus for measuring the contents of foreign matters in a flowing liquid Apparatus for measuring the contents of foreign matters in a flowing liquid, in particular a buoyant apparatus, which has a housing (1) of which at least one wall section (2) is intended to be brought into contact with the liquid, and has a preferably sph...	04/02/2002
5987971	Interlock for a storage tank used in containing a respirable liquid cryogen An sensor for sensing buoyancy force within a liquid mixture stored within a storage tank and an interlock employing the sensor to prevent a respirable cryogenic mixture from being dispensed from the storage tank with an unsafe oxygen content. The sensor ...	11/23/1999
5847276	Fluid displacement level, density and concentration measurement system A method and apparatus for monitoring characteristics of a fluid contained in a vessel includes a fluid displacer suspended in the vessel. The buoyant force acting on the fluid displacer is measured using a pair of force transducers and used to calculate ...	12/08/1998
5834217	Assay of blood or other biologic samples for target analytes A patient's health may be diagnosed by centrifuging blood samples in a transparent tube, which tube contains one or more bodies or groups of bodies such as floats, inserts, liposomes, or plastic beads of different densities. Each density-defined body carr...	11/10/1998
5776710	Assay of blood or other biologic samples for target analytes A patient's health may be diagnosed by centrifuging blood samples in a transparent tube, which tube contains one or more bodies or groups of bodies such as floats, inserts, liposomes, or plastic beads of different densities. Each density-defined body carr...	07/07/1998
5744716	Fluid displacement level, density and concentration measurement system A method and apparatus for monitoring characteristics of a fluid contained in a vessel includes a pair of triangular fluid displacers suspended in the vessel. The buoyant forces acting on the fluid displacers are measured using force transducers and used ...	04/28/1998
5654692	Tracking buoy A tracking buoy including a sensor to detect the presence of hydrocarbons in a body of water and a communication system to transmit data to a remote monitoring center when the hydrocarbons are detected to indicate the direction and speed of travel of the ...	08/05/1997
5635362	Assay of blood or other biologic samples for target analytes A patient's health may be diagnosed by centrifuging blood samples in a transparent tube, which tube contains one or more bodies or groups of bodies such as floats, inserts, liposomes, or plastic beads of different densities. Each density-defined body carr...	06/03/1997
5514338	Device for sensing liquid hydrocarbon A device is disclosed for sensing any of a wide range of liquid hydrocarbons. A ribbon-like sensor is employed, which has an inner, silicone rubber layer and an outer, silicone rubber layer and which has two broad faces and two narrow edges. The silicone ...	05/07/1996
5496704	Method for in vitro detection of formed elements in biological samples A biological sample such as feces, sputum, cervical tissue, pleural fluids, exudates, cytologic specimens, or the like, is tested for the presence or absence of: ova; parasites; microorganisms; inflammatory, neoplastic tissue cells; or other target materi...	03/05/1996
5481904	Oil spillage detector An oil spill sensing/communicating apparatus which is buoyantly situated, anchored or adrift, in a salt or fresh body of water, featuring a configuration which permits fluid passage therethrough of surface water/oil and sensing of hydrocarbonous gas which...	01/09/1996
5252460	In vitro detection of ova, parasites, and other formed elements in stool A biologic sample such as feces, sputum, cervical tissue, pleural fluids, exudates, cytologic specimens, or the like, is tested for the presence or absence of: ova; parasites; microorganisms; inflammatory, neoplastic tissue cells; or other target material...	10/12/1993
4935726	Drainage system monitoring apparatus This invention is directed to an apparatus or system which is used for monitoring a storm drain system in order to detect the presence of hydrocarbons or the like therein. The apparatus includes a sensor unit which is arranged to float on the surface of t...	06/19/1990
4843869	Method for measuring hemoglobin A whole blood sample is placed in a tube such as a capillary tube, with a plastic float. The float is axially elongated and has a specific gravity which causes it to float in the packed red blood cells when the sample is centrifuged in the tube. The hemog...	07/04/1989
4774965	Material layer volume determination with correction band A centrifuge tube is used to hold a mixture of several constituents, and also contains a generally cylindrical float. The float settles, after centrifugation, into the zone occupied by the constituent whose volume is to be measured. The constituent layer ...	10/04/1988
4700580	Aviation fuel tester A clear plastic device for the sampling of aviation fuel to allow visual inspection for contaminants that may be contained therein. The hand-held device operates in a "groove" mode or a "prong" mode for different fuel tank quick-release valves. A float in...	10/20/1987
4663614	Hydrocarbon detector system A probe comprising an electrically conductive polymer and a pair of electrodes is placed to be contacted by the chemical. Contact changes the molecular structure or arrangement and changes the resistivity of the polymer, which is measured to actuate an in...	05/05/1987
4640123	Leak detecting device In a device for detecting oil leaks and the like on a surface of water such as a moat around an oil storage tank, a vibrator is placed which substantially eliminates extraneous matter attaching to or depositing on the sensor and thereby enhances the condi...	02/03/1987
4567754	Measurement of small heavy constituent layer in stratified mixture A complex liquid, such as a biological liquid, is stratified, as by centrifugation in a tube, into constituent layers. The most dense or heaviest constituent layer is measured volumetrically by physically expanding the entire layer with a cylindrical floa...	02/04/1986
4549171	Floating oil leak detector Oil floating on the surface of a body of water can be detected by the floating sensor of this invention which comprises a float having a central opening vertically therethrough and containing an electrical sensor, the lead wire connected to the sensor ext...	10/22/1985
4434650	Hydrocarbon sensor float A hydrocarbon sensor float for use in detecting the presence of hydrocarbons on the surface of a liquid provides an elongated floatation member having a top end and a bottom end and also having a cavity located centrally therealong and extending completel...	03/06/1984
4384477	Sensing device A sensing device for detecting a substance including hydrocarbons on the surface of water provides a floatation device for floating on the water surface and for supporting at least one sensing element for detecting said substance, the floatation device be...	05/24/1983
4361031	Sensing device A sensing device for detecting a substance including hydrocarbons on the surface of water provides a floatation device for floating on the water surface and for supporting at least one sensing element for detecting the hydrocarbon substance with the float...	11/30/1982
4345459	Sensing device A device for sensing a substance on the surface of a liquid of the type including a float and a sensing element mounted on the float for extending into the liquid, includes a plastic encasement enclosing all portions of the element to be exposed to the li...	08/24/1982
4220041	Alien liquid detector and control An alien liquid detector employs a monitoring element and an energizing circuit for maintaining the temperature of the monitoring element substantially above ambient temperature. For this purpose an electronic circit controls a flow of heating current to ...	09/02/1980
4202203	Oscillator detector An alien liquid detector employs a monitoring element and an oscillatory electronic circuit for maintaining the temperature of the monitoring element substantially above ambient temperature. The output wave form, e.g., frequency of oscillation or wave sha...	05/13/1980
4159638	Thermistor detector circuit and discriminating network for heat absorptive media Detecting conditions related to the heat absorptive characteristics of a surrounding medium by heated thermistors exposed for heat transfer to the medium, and connected to a restorative energizing electronic circuit that supplies heating power. The restor...	07/03/1979
4137755	Material layer volume determination A technique for generally determining the volume of a layer of a constituent material in a centrifugally separated mixture of material. A centrifuge tube is used to hold the material mixture and an appropriately shaped body is disposed in the tube in the ...	02/06/1979
4131773	Apparatus for detecting presence of oil in a body of water A simple apparatus for use in detecting the presence of oil in a body of water. It employs a floating structure which includes at least one pair of electrodes that are immersed in the water. At least one electrode is surrounded by an absorbent oleophilic ...	12/26/1978
4116045	Oil detector Detecting different fluids, such as oil at the surface of water, by a heated monitoring element exposed for contact with the fluid, the element having a resistance characteristic that changes as a function of temperature, in preferred embodiments being th...	09/26/1978

PatentStorm

Bizarre Patents

PatentStorm News

Class 73/61.51 - Buoyant detector