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| Number | Title | Issue Date |
| 7983114 | Vertical-axis transmitting sonar antenna that can be wound onto a winch Embodiments of the present invention relate to a linear submersible body including a plurality of rigid segments that are articulated and can adopt relative to one another an orientation making it possible to form a rectilinear body, or a curved body of which the ra... | 07/19/2011 |
| 7782712 | Device for estimating local towed array angles A towed array is provided with hot-film sensors and anemometer circuitry to calculate the angle of inclination of the towed array in real time during deployment of the towed array in a sea water environment. The hot-film sensors are arranged in pairs along the lengt... | 08/24/2010 |
| 7719925 | Vertical line hydrophone array A hydrophone assembly includes at least four hydrophone units for converting an acoustic signal to an electrical signal, the hydrophone units being in a parallel, cylindrically symmetric spaced spatial relationship with each other, and at least one spacer element to... | 05/18/2010 |
| 7684283 | Cable device A cable device wherein a signal-carrying cable is disposed within a flexible towing sleeve. The towing sleeve is made of a flexible, elongated sheet of abrasion-resistant material, into which is arranged a plurality of longitudinal, parallel pockets or sleeves. One ... | 03/23/2010 |
| 7680000 | Method for production of an antenna section for an underwater antenna The invention relates to a method for production of an antenna section comprising a hydrophone (12) for a submarine antenna which may be composed of several antenna sections, whereby the hydrophones are arranged in a row one behind the other in a rectangular ... | 03/16/2010 |
| 7443765 | Reconfigurable linear sensor arrays for reduced channel count A reconfigurable linear array of sensors (e.g., optical, thermal, pressure, ultrasonic). The reconfigurability allows the size and spacing of the sensor elements to be a function of the distance from the beam center. This feature improves performance for imaging sys... | 10/28/2008 |
| 7426439 | Method and apparatus for marine seismic data acquisition The present invention provides a method and apparatus for seismic data acquisition. One embodiment of the method includes accessing data acquired by at least two particle motion sensors. The data includes a seismic signal and a noise signal and the at least two part... | 09/16/2008 |
| 7382689 | Flexible hydrophone A hydrophone includes a body formed of a flexible, plastic material. The body includes a plurality of channels and each channel may have one or more wells. The wells are adapted to receive an active element which includes mounting hardware. The mounting hardware inc... | 06/03/2008 |
| 7379392 | Flexible cymbal array A cymbal array for underwater vehicle applications includes piezoelectric discs disposed in a line, a first flex circuit comprising first annular members each affixed to a first side of one of the discs, a first series of cymbal caps each mounted on one of the first... | 05/27/2008 |
| 7366055 | Ocean bottom seismic sensing system Seismic sensor systems and sensor station topologies, as well as corresponding cable and sensor station components, manufacturing and deployment techniques are provided. For some embodiments, networks of optical ocean bottom seismic (OBS) stations are provided, in w... | 04/29/2008 |
| 7314997 | High speed data communication link using triaxial cable A high speed data communication link has a circuit for providing a differential signal having first and second opposite phase components and a triaxial cable connected to receive the positive phase component of the signal on the inner conductor and the negative phas... | 01/01/2008 |
| 7308820 | Piezocable based sensor for measuring unsteady pressures inside a pipe A piezocable based sensor for measuring unsteady pressures inside a pipe comprises a cable wrapped around the pipe and an outer band compressing the cable towards the pipe. The cable provides a signal indicative of unsteady pressure within the pipe in response to ex... | 12/18/2007 |
| 7260024 | Housing for a seismic sensing element and a seismic sensor A housing for a seismic sensing element (3) for use on the earth's surface comprises connecting means (5) for connecting the housing (3) to a support cable (2) so as to allow relative movement between the sensor housing (3) and the... | 08/21/2007 |
| 7260228 | Optimum driver spacing for a line array with a minimum number of radiating elements The loudspeaker has a first pair of drivers arranged in a line, a center point along the line, wherein the pair of drivers are substantially centered about the center point with a center to center distance, d0, between the drivers in the first pair of dri... | 08/21/2007 |
| 7239577 | Apparatus and methods for multicomponent marine geophysical data gathering In one embodiment the invention comprises a particle velocity sensor that includes a housing with a geophone mounted in the housing. A fluid that substantially surrounds the geophone is included within the housing. The particle velocity sensor has an acoustic impeda... | 07/03/2007 |
| 7237564 | Distribution of energy in a high frequency resonating wafer processing system A transducer for use in an acoustic energy cleaner is provided. The transducer includes a resonator and a plurality of crystals bonded to a surface of the resonator. The plurality of crystals is configured to be bonded to the surface of the resonator in a staggered ... | 07/03/2007 |
| 7216556 | Tubing for transporting air samples in an air monitoring system An air monitoring system includes a tubing having a metallic inner layer and an outer jacket to provide optimal transport of air samples. ... | 05/15/2007 |
| 7209408 | Distributed, soft-bodied, towable, active acoustic system A towed active acoustic system includes a plurality of soft-bodied, towable, active acoustic modules. The plurality of active acoustic modules are suspended at various depths within the water column, and allow each active acoustic module to be much smaller than know... | 04/24/2007 |
| 7206257 | Acoustic remote caviation as a destruction device A method is disclosed of generating a predetermined field of cavitation around a remote target in an underwater environment. The method includes the steps of identifying a remote target location, generating at least two acoustic beams, each at a high power output, f... | 04/17/2007 |
| 7188528 | Low pass filter semiconductor structures for use in transducers for measuring low dynamic pressures in the presence of high static pressures A semiconductor filter is provided to operate in conjunction with a differential pressure transducer. The filter receives a high and very low frequency static pressure attendant with a high frequency low dynamic pressure at one end, the filter operates to filter sai... | 03/13/2007 |
| 7190634 | GPS-based underwater cable positioning system A GPS-based underwater cable positioning system for use in determining the shape and position of hydrophone streamers towed underwater behind survey vessels involved in marine seismic prospecting. The system includes a plurality of surface units towed behind the ves... | 03/13/2007 |
| 7184365 | Unitary multi-cable towing system In one aspect the invention comprises a system and a method for marine geophysical exploration, which includes a first cable connected to a vessel and a plurality of streamer cables connected to the first cable. The first cable includes all towing strength members a... | 02/27/2007 |
| 7184364 | Armored seabed laid seismic cable and method and apparatus for manufacturing same A method for wrapping continuous strands of steel wire about a seismic cable including interconnected sensor sections and conductor sections where a cross sectional diameter of the sensor section is at least four times that of the conductor section. Two layers of ar... | 02/27/2007 |
| 7180828 | Non-kinking oil-filled acoustic sensor stave A hydrophone stave comprises a tubular member, a braided cord (or similar flexible structure), cylindrical hydrophones, pins, two plugs and two couplings. The hose (made of a thermoplastic material) is corrugated or convoluted, and is cuffed at both ends to permit a... | 02/20/2007 |
| 7142481 | Method and system for making marine seismic streamers An apparatus for making a marine seismic streamer includes a conveyor for transporting assembled mechanical harness from a storage device therefor to a storage device for storing completed marine streamer. The apparatus includes a first extruder for filling the harn... | 11/28/2006 |
| 7139217 | Water bottom cable seismic survey cable and system A seismic sensor cable is disclosed. The cable includes an outer jacket disposed on an exterior of the cable. The outer jacket excludes fluid from entering an interior of the cable. A reinforcing layer disposed within the outer jacket, which includes at least one el... | 11/21/2006 |
| 7130242 | System and method for detecting an acoustic signal in the presence of flow noise A system and method are provided for detecting an acoustic signal in the presence of flow noise produced by the turbulent flow field that develops about a hosewall of a towed array. Pressure is sensed with pressure sensors at two diametrically-opposed locations at t... | 10/31/2006 |
| 7124818 | Clamp mechanism for in-well seismic station A clamp mechanism for actively coupling an in-well seismic station to the casing of a well is disclosed. The clamp mechanism is capable of associating a sensor to production tubing for deployment in the well and is capable of actively coupling the sensor to the casi... | 10/24/2006 |
| 7120087 | Electronics-carrying module An electronic-carrying module (640), for example for use with a seismic data acquisition cable (400), is disclosed. The preferred electronic-carrying module (640) includes, first, an electronics carrier (106) having access means (107 | 10/10/2006 |
| 7116850 | Hydrophone mandrel for precise placement of gratings A method and apparatus for reducing the difficulty of controlling the length of a section of optical waveguide wrapped around a mandrel separating Bragg gratings forming an interferometric sensor are provided. The section of optical waveguide may be wrapped on a man... | 10/03/2006 |
| 7113448 | Water bottom cable seismic survey cable and system A seismic sensor cable is disclosed. The cable includes an outer jacket disposed on an exterior of the cable. The outer jacket excludes fluid from entering an interior of the cable. A reinforcing layer disposed within the outer jacket, which includes at least one el... | 09/26/2006 |
| 7107853 | Pressure transducer for measuring low dynamic pressures in the presence of high static pressures A sensor is described, which basically consists of a leadless high sensitivity differential transducer chip which responds to both static and dynamic pressure. Located on the transducer are two sensors. One sensor has a thicker diaphragm and responds to both static ... | 09/19/2006 |
| 7104728 | Method for deploying seafloor equipment A method for deploying and retrieving seafloor equipment modules is disclosed. A conveyor has a fixed end and a free end. The conveyor is deployed into a body of water until the free end reaches, or is proximate to, the seafloor. The conveyor is dragged through the ... | 09/12/2006 |
| 7093490 | Ultrasonic flaw detecting method and ultrasonic flaw detector In order to make it possible in ultrasonic flaw detection to generate ultrasonic waves containing a main beam only by use of an array probe and clearly identify a defect in a specimen by use of images, an element pitch P (the distance between centers of adjacent ult... | 08/22/2006 |
| 7077164 | Pipe A pipe has an innermost layer, outside of which there is an inner electrode layer, outside of which there is an insulating layer, outside of which there is an outer electrode layer. The innermost layer is made of plastic by continuous extrusion and the insulating la... | 07/18/2006 |
| 7066023 | Distributed sensor array for fluid contaminant monitoring A disclosed fluid purity monitoring system employs a network of preferably information-transmissive cables fixed in place within a body of fluid. Sensors sensitive to fluid impurities are supported at various places on the network. Data representative of impurity le... | 06/27/2006 |
| 7061829 | Water bottom cable seismic survey cable and system A seismic sensor cable is disclosed. The cable includes an outer jacket disposed on an exterior of the cable. The outer jacket excludes fluid from entering an interior of the cable. A reinforcing layer disposed within the outer jacket, which includes at least one el... | 06/13/2006 |
| 7040351 | Plastic tube, especially a pneumatic tube A plastic hose, and more particularly a pneumatic hose, is provided with at least two electrical conductors extending along the hose body. These conductors are in the form of strips (11 and 12) of a metallized braid of plastic material or of natural fi... | 05/09/2006 |
| 7042803 | Marine seismic source towing apparatus and method A marine acoustic source system has relativley densely packed energy sources arrayed in a tandem-like fashion along a horizontal plane. Preferably, a longitudinal axis of each source lies orthogonal to a pre-determined towing direction. The system includes protectiv... | 05/09/2006 |
| 7026826 | Vector sensor device and calibration method A sensor includes a piezoelectric hydrophone and at least one accelerometer. In calibration mode, the hydrophone is connected to a source of a known electrical signal and outputs a mechanical/acoustic signal that the accelerometer detects. Comparison of the known el... | 04/11/2006 |
