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| Number | Title | Issue Date |
| 7733742 | Method and installation for acousto-optic imaging This invention concerns an acousto-optic imaging method comprising a step which consists in engraving in a dynamic holographic material a complex index array resulting from the interference of the acousto-optic component of the signal wave and a pump wave of frequen... | 06/08/2010 |
| 7408842 | Sonar dome The Invention is a reinforced plastic sonar dome having a low acoustical insertion loss combined with sufficient mechanical strength. Acoustical and structural fibers are stochastically mixed and formed into a blended yarn. The blended yarn is woven into a blended f... | 08/05/2008 |
| 7347282 | Steerable soil penetration system A steerable soil penetration system having a steerable penetration head, which compacts and does not cut away the surrounding soil and which is connected to an elongate flexible tubing such that the orientation of the penetration head can be varied relative to the t... | 03/25/2008 |
| 7248052 | Electric power grid induced geophysical prospecting method and apparatus A geophysical prospecting method and apparatus that utilizes the harmonics and sub harmonics waves induced into the earth by the electric power grid. The amplitude-frequency data are converted to amplitude-depth data and further converted to a differential curve. Th... | 07/24/2007 |
| 7210556 | Method and apparatus for installing a sensor array An apparatus and method is provided for transporting, installing, retrieving, and replacing a sensor array of individual sensor pods at a geographically remote location, such as on the sea floor. The apparatus consists of a remotely operated vehicle (ROV), a carouse... | 05/01/2007 |
| 7211173 | System for inhibiting fouling of an underwater surface A marine fouling inhibiting system comprises first and second conductors which are made of a polymer matrix, such as vinyl ester, and a suspended conductor, such as graphite powder or particles. This type of conductive material is formed to provide two sections of a... | 05/01/2007 |
| 7204342 | Sound focus speaker of gas-filled sound lens attachment type A sound focus speaker adopting a gas-filled sound lens enhances efficiency of transferring sound from a source to target area and of protecting a spread of transferred sound. The sound focus speaker includes a gas-filled sound lens, sound sources for generating soun... | 04/17/2007 |
| 7145833 | Cleaning device for marine seismic streamers A seismic streamer cleaning device includes a means for converting motion of water past a seismic streamer into movement of the device as the streamer is towed through the water. A cleaning element is cooperatively engaged with the device and an exterior surface of ... | 12/05/2006 |
| 7138926 | Sensor head component A sensor head component is configured for use with a monitoring tool assembly in the performance of one or functions as part of a monitoring process. The sensor head component is configured to include at least one electrical component for performing the function as ... | 11/21/2006 |
| 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 |
| 7007541 | Multi-parameter monitoring system A plurality of multi-parameter monitoring tool assemblies are connectable over a communications network and are further in communication with a central controller. Each of the tool assemblies is configured to interconnect with one or more sensor head components whic... | 03/07/2006 |
| 6973721 | Tension-resistant connection between a shielded heating cable and a power supply cable An electrical and mechanical connection between (a) a first shielded cable including a metal sheath and electrical conductors and (b) a second cable including a ground conductor and electrical conductors, comprises a zone of interconnection between the first and sec... | 12/13/2005 |
| 6938506 | Sensor head apparatus A sensor head apparatus is configured to include a plurality of sensor ports each configured to receive and electrically interconnect with a sensor head component. The sensor head is further configured to be connectable to a housing for a multi-parameter monitoring ... | 09/06/2005 |
| 6936009 | Matching layer having gradient in impedance for ultrasound transducers A matching layer for ultrasound transducers has a gradient in impedance value from one surface to the other surface of the matching layer. The matching layer is composed of a plurality of sublayers made of composite materials and securely attached together and is di... | 08/30/2005 |
| 6928864 | Tool assembly and monitoring applications using same The present invention provides a tool assembly for use in field applications to monitor at least one condition in a well or other hole. The tool assembly may include a computing unit for directing operation of the tool assembly and may be sized to be operable in a h... | 08/16/2005 |
| 6904860 | Winglet for the trailing end of towed flexible underwater lines A winglet for mounting on a trailing end of a flexible line to be towed by an underwater vehicle includes an internal collar member for connection to an inside surface of the line at the trailing end thereof, an outer collar member for connection to an outside surfa... | 06/14/2005 |
| 6831876 | Acoustic window An improved acoustic window for an acoustic waveform passage having a generally uniform transmission loss at an angle of incidence of between −40° and +40°. The composition is formed from at least one core layer and at least two septa, with the core layer being ... | 12/14/2004 |
| 6697299 | Individual authentication method, individual authentication apparatus, information communication apparatus equipped with the apparatus, and individual authentication system including the apparatus The object of the present invention is to provide an individual authentication method and apparatus that use no bulky apparatuses, are insusceptible to forgery, and use an auditory organ which is almost independent of health condition and aging, is little... | 02/24/2004 |
| 6519376 | Opto-acoustic generator of ultrasound waves from laser energy supplied via optical fiber The opto-acoustic generator of ultrasound waves comprises an optical fiber associated to a laser-energy source, and an opto-acoustic transducer which is applied to said fiber and is designed to be impinged upon by the laser beam and to absorb partially th... | 02/11/2003 |
| 6310554 | Severe weather detection apparatus and method of detecting and warning of severe weather conditions A severe weather detection apparatus for detecting severe weather and method of detecting and warning of approaching severe weather conditions is provided. The severe weather detector apparatus includes a barometric pressure sensor and computerized means ... | 10/30/2001 |
| 6276503 | Portable reel apparatus and method A portable reel apparatus for use with towed sonar towfish and similar apparatus. The reel apparatus of the invention can be used on small watercraft without requiring mounting to the deck, and can be quickly and easily moved and stored on-board or remove... | 08/21/2001 |
| 6260656 | Land seismic data acquisition method and seismic cable and cable spool vehicle therefor A method for land seismic data acquisition is provided, together with a seismic cable and a cable spool vehicle for use in the method. In performing the method, the cable spool vehicle mechanically deploys seismic cable with attached sensors according to ... | 07/17/2001 |
| 5995451 | Multiple sensor fish surrogate interface system for acoustic and hydraulic data collection and analysis The invention is a processor based analysis system with appropriate interface that includes multiple fish surrogates that each have a plurality of piezoelectric and triaxial accelerometer sensors for emulating sensory organs of a particular fish. The mult... | 11/30/1999 |
| 5917776 | Means for reducing minimum sensing distance of an ultrasonic proximity sensor A rugged ultrasonic sensor is provided which is capable of detecting objects in very close proximity to the sensor. This close proximity detection includes the detection of objects which are immediately adjacent the sensor housing. Such close range operat... | 06/29/1999 |
| 5835454 | Transducer shroud for improved transducer operation in the treatment of waste water A sonic transducer shroud is shaped to present an inclined surface to rising bubbles and other matter during water treatment. Attached to the face of the sonic transducer, the shroud prevents the bubbles and other matter from being trapped on the transduc... | 11/10/1998 |
| 5811741 | Apparatus for placing geophones beneath the surface of the earth An apparatus for placing geophones beneath the surface of the earth includes a machine frame that supports an elongated probe rod. The probe rod is dimensioned to reach a selected subterranean earth layer. The rod has upper and lower end portions. A geoph... | 09/22/1998 |
| 5777947 | Apparatuses and methods for sound absorption using hollow beads loosely contained in an enclosure A sound absorption device in accordance with this invention includes an enclosure loosely containing hollow beads. Preferably, the hollow beads have openings, and differ with respect to the volume of the hollow space defined by the walls of the beads, the... | 07/07/1998 |
| 5696489 | Wireless boundary monitor system and method A wireless boundary monitor system used to monitor the integrity of a boundary surrounding an area uses at least two housings having at least one transmitting means for emitting ultrasonic pressure waves to a medium. Each of the housings has a plurality o... | 12/09/1997 |
| 5692918 | Two-piece universal cable-connector adapter A seismic cable connector adapter assembly for coupling sub-diameter seismic streamer-cables to standard-sized instrumented cable connector modules.... | 12/02/1997 |
| 5675555 | Multiple sensor fish surrogate for acoustic and hydraulic data collection The apparatus of this invention are multiple fish surrogates that each have plurality of piezoelectric and triaxial accelerometer sensors for emulating sensory organs of a particular fish. The multiple fish surrogates are immersed in flowing water intakes... | 10/07/1997 |
| 5621701 | Controlled compliance acoustic baffle An acoustic baffle for reflecting sound waves and rejecting background interference noise for use with a hydrophone array. The baffle utilizes a plurality of lenticular resilient elements embedded in a compliant foam elastomer compound. The embedded eleme... | 04/15/1997 |
| 5517465 | Multiple sensor fish surrogate for acoustic and hydraulic data collection Acoustic signals and hydraulic pressure variations which influence fish bvior in bodies of water are measured and recorded by apparatus simulating a fish immersed in water, fitted with piezoelectric transducers and connected by wiring to remote amplifyin... | 05/14/1996 |
| 5511044 | Thrust producing apparatus A device for producing thrust has a variety of uses, such as pumping liquid, compressing or blowing air, or powering an aircraft. The device has a chamber with a sound driver located therein. The sound driver creates a compression standing wave in the cha... | 04/23/1996 |
| 5500493 | Acoustic beam levitation A system is described that uses acoustic energy to position an object, which simplifies the application of forces in defined directions to the object and which enables the application of large forces to the object. The system includes transducers (21-24, ... | 03/19/1996 |
| 5477507 | Ribbon splicing method and apparatus Ribbon made of long fibers has each of its ends separated into four bundles. The four bundles of each end carry the same four discrete indicia arranged in a different pattern. The bundles are inter-engaged so that the bundles of the same indicia lie toget... | 12/19/1995 |
| 5467322 | Water hammer driven vibrator The invention provides apparatus for shaking structures such as fins in a fluid agitator, shaking tables, shaking screens, conveyors, or the walls of bins or hoppers. The apparatus is driven by a hydraulic driving system in which high pressure pulses are ... | 11/14/1995 |
| 5459699 | Method and apparatus for generating high energy acoustic pulses A method and apparatus are disclosed for generating intense acoustic pulses by means of the water hammer effect. The method involves generating a water hammer in a conduit by suddenly interrupting a high velocity flow of fluid through the conduit. The kin... | 10/17/1995 |
| 5425003 | Acoustic transducer mounting clamp An acoustic transducer mounting clamp for holding an acoustic transducer against a test surface utilizing fatigue resistant adhesive so as to facilitate the use of a gel couplant at the interface of the transducer and the test surface. The clamp has a bas... | 06/13/1995 |
| 5394786 | Acoustic/shock wave attenuating assembly An acoustic/shock wave attenuating assembly comprised of porous screens forms an enclosure filled with a suitable pressure wave attenuating medium or material having fluid characteristics. This basic configuration can be suspended or held in place by a ri... | 03/07/1995 |
| 5347496 | Method and system of mapping acoustic near field A method and system for mapping the acoustic near field of a stationary al symmetric structure are provided. The structure is subjected to a rotating excitation energy profile from a plurality of stationary excitation sites located radially around the st... | 09/13/1994 |
