Quotables
"What, sir, would you make a ship sail against the wind and currents by lighting a bonfire under her deck? I pray you, excuse me, I have not the time to listen to such nonsense."
Napoleon Bonaparte ; When told of the Robert Fulton steamboat
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| Number | Title | Issue Date |
| 8081540 | Rotary subwoofer marine seismic source According to a preferred aspect of the instant invention, there is provided herein a system and method for creating low frequency seismic waves. In brief, the instant invention uses a rotary propeller-type system that has been mounted in, for example, a barge or oth... | 12/20/2011 |
| 7548489 | Method for designing a resonant acoustic projector Each of a pair of electrically conductive spiral coils is ensconced in a disk-shaped matrix. The two coil-ensconced matrices are joined face-to-face so as to sandwich between them a thin, non-magnetic elastic layer. An electronic device is connected so that each coi... | 06/16/2009 |
| 7443764 | Resonant acoustic projector Each of a pair of electrically conductive spiral coils is ensconced in a disk-shaped matrix. The two coil-ensconced matrices are joined face-to-face so as to sandwich between them a thin, non-magnetic elastic layer. An electronic device is connected so that each coi... | 10/28/2008 |
| 7355926 | Portable low frequency projector A portable low frequency underwater acoustic projector having two circular diaphragms separated by a spacer ring with a pair of coils and oscillating masses being located in pipes connected to central opening in two diaphragms, the coils driving these masses in oppo... | 04/08/2008 |
| 7353695 | Methods and apparatus for determining properties of a fluid A method and system for determining properties of a fluid involves interacting the fluid with a standing wave in a first state to establish the standing wave in a second state, analyzing an electric signal associated with the standing wave to determine a characteris... | 04/08/2008 |
| 7311677 | Energy concentrator system and method Reflective apparatus and method by which energy is radiated in divergent fashion from an elongated source and is reflected by a first parabolic reflector as a paraxial beam, focused by a second parabolic reflector onto a hyperbolic reflector and reflectively concent... | 12/25/2007 |
| 7311678 | Pressure-pulse therapy apparatus Disclosed is a device for producing an intracorporeal pressure pulse comprising a pressure pulse source configured to generate a collimated pressure pulse and an acoustic lens including at least one ring-shaped focusing section configured to focus a pressure pulse g... | 12/25/2007 |
| 7263874 | Methods and apparatus for determining properties of a fluid A method and system for determining properties of a fluid involves interacting the fluid with a standing wave in a first state to establish the standing wave in a second state, analyzing an electric signal associated with the standing wave to determine a characteris... | 09/04/2007 |
| 7251195 | Apparatus for generating an acoustic signal An apparatus for generating an acoustic signal which has a dielectric substrate having opposed first and second sides. A pair of electrodes are mounted on the first surface of the substrate so that the electrodes are spaced apart from each other. A high voltage powe... | 07/31/2007 |
| 7145836 | Underwater acoustic generator using pulse engine and gas disperser A high-pressure, moving-piston pulse engine (modified HIPPE) 10 is used to produce one or a series of pulses of acoustic energy in a marine environment for acoustic communication, detection, classification or jamming. The HIPPE engine 10 is modified by... | 12/05/2006 |
| 7042801 | System for geophysical prospecting using induce electrokinetic effect Methods are disclosed employing seismic waves having infrasonic frequencies in the range of about 0.1–20 Hz for generating electromagnetic waves of similar infrasonic frequency in hydrocarbon bearing subterranean formations located at depths up to about 5000 meter... | 05/09/2006 |
| 7028807 | Non-explosive acoustic source A non-explosive acoustic source utilizes the combustion of aluminum and water to generate an acoustic pulse. The operation of the non-explosive acoustic source relies on a water/aluminum reaction to generate a burst pressure. The source may be deployed as a single c... | 04/18/2006 |
| 7004282 | Ultrasonic horn An ultrasonic horn in accordance with the present invention comprises a horn body having a longitudinal transmission axis, a proximal end attachable at least indirectly to a source of ultrasonic vibrations, and a distal end with an active end face. The end face is p... | 02/28/2006 |
| 6981952 | Apparatus for generating acoustic waves An apparatus for generating acoustic waves has an acoustic transducer with a first electrode serving as a membrane and adjoining an acoustic propagation medium and a second electrode spaced from the first, between which an electrolyte is situated. The acoustic trans... | 01/03/2006 |
| 6960968 | Planar resonator for wireless power transfer A planar resonator and method of manufacture provides contactless power transfer using at least two electrically isolated axis aligned conductive across the transfer interface in a coupled inductor or transformer configuration. Signal or power transfer is then accom... | 11/01/2005 |
| 6910542 | Acoustic flow pulsing apparatus and method for drill string An underground drilling method and apparatus generates intense pressure pulses at a location at the surface. The pressure pulses propagate down through a drill string to a drill bit. The pulses may be generated by creating water hammer in flowing drilling mud. Inten... | 06/28/2005 |
| 6906981 | Method and system for acquiring marine seismic data using multiple seismic sources A method for seismic surveying is disclosed which includes towing a first seismic energy source and at least one seismic sensor system. A second seismic energy source is towed at a selected distance from the first source. The first seismic energy source and the seco... | 06/14/2005 |
| 6771565 | Low voltage seismic sound source A boomer for generating acoustic signals in a marine seismic survey has a frame towed by a survey vessel. A coil is mounted to the frame and a conductive plate is adjacent to the coil. A capacitor is mounted to the frame, and control electronics system delivers an e... | 08/03/2004 |
| 6755796 | Pressure-pulse therapy apparatus A pressure-pulse therapy apparatus, including a dome-shaped reflector, at least one ring section, a central x-axis, an open end, a flexible diaphragm capping the open end, a fluid medium within the reflector and diaphragm, a pressure-pulse source immersed in the flu... | 06/29/2004 |
| 6570819 | Low frequency acoustic projector A reusable low frequency projector system that is capable of producing coherent broadband, high power, low frequency acoustic pressure waves underwater. The projector has two halves each with a spiral wound insulated wire core. The spiral wound wires are ... | 05/27/2003 |
| 6385131 | Thermoacoustic communications system This invention is a thermoacoustic system for communicating between an airborne or spaceborne vehicle and a sound detector that is located aboard an object beneath the surface of the water. The foregoing system comprises a laser or particle accelerator th... | 05/07/2002 |
| 6164927 | Process for venting a hydraulic assisted steering system In order to reduce the amount of air trapped in hydraulic assisted steering systems (1), a communication (13, 14) is established between the area of the oil expanding volume (8, 10, 11), which is the top area in the mounted position, and an open system (2... | 12/26/2000 |
| 6085862 | Drive assembly for acoustic sources The invention disclosed is a drive assembly for acoustic sources having sound emitting surfaces (1) adapted to be excited into vibrational motions. The invention is especially for use in seismic surveys. The drive assembly includes an electric rotational ... | 07/11/2000 |
| 5652734 | Directional sound signaling device An improved manually operated signaling device to produce audible sound underwater. An air tight housing comprising a tubular member with end-caps permanently sealing each of its two ends and having contained within a metal echo-chamber fixed at each end ... | 07/29/1997 |
| 5646380 | Drive assembly for acoustic sources Drive assembly for acoustic sources having sound emitting surfaces adapted to be excited into vibration movements, in particular for use in seismic explorations. The assembly comprises an electric rotational motor (17) with an associated axle which compri... | 07/08/1997 |
| 5642331 | Constant radius acoustic sensor mounting system The present invention relates to a system for studying, identifying and cacterizing thermal gradients in a volume of water. The system includes a frame for supporting one or more measuring devices and a source of heat for generating a thermal plume in th... | 06/24/1997 |
| 5519670 | Water hammer driven cavitation chamber A cavitation chamber is driven by a hydraulic driving system in which acoustic pulses are generated by repeated water hammers. In the driving system a liquid is pumped through a conduit. The flow of liquid through the conduit is periodically interrupted b... | 05/21/1996 |
| 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 |
| 5450373 | Apparatus for transmitting two frequency signals with an acoustic projector An acoustic projector wherein a unitary acoustic resonator produces active sonar signals in more than one frequency band. The double-slotted resonator is coupled to a transducer which is capable of exciting the resonator in two, distinct, volumetric modes... | 09/12/1995 |
| 5398217 | Method of high-resolution sea bottom prospecting and tuned array of paraboloidal, electroacoustic transducers to carry out such method A method of and an apparatus for the high-resolution sea bottom prospecting, in which an electroacoustic paraboloidal transducer is placed into water, the electrodes of which are near the focus of the paraboloid and are connected both to a capacitor bank ... | 03/14/1995 |
| 5375101 | Electromagnetic sonar transmitter apparatus and method utilizing offset frequency drive A sonar transmitter includes a source means for providing an actuation signal to drive an electromagnetic transducer projector without the use of bias magnetization. The invention utilizes an offset actuation frequency technique in which electrical drivin... | 12/20/1994 |
| 5369625 | Thermoacoustic sound generator A submersible acoustic generator for projection of sound waves into a body f water comprises a tubular resonator, open at its lower end and closed at its upper end, and having a multiple-plate thermoacoustic stack located near the upper end between a pair ... | 11/29/1994 |
| 5283766 | Method and apparatus for simulation of propulsion noises of self-propelled ships Simulation of ship's noises by means of liquid jets penetrating into the water.... | 02/01/1994 |
| 5270985 | Seismic pulse generation An acoustic wave energy generator comprises a body having an internal gas-pressurisable first chamber 1 adjoining a second chamber 2 into which a liquid is introduced to cover a vibratable means 4 which may be a flexible diaphragm and is mounted on the se... | 12/14/1993 |
| 5233570 | Low frequency underwater acoustic radiator Low frequency underwater acoustic radiator apparatus includes an air-trapping chamber with a lower portion open to the water, characterized by a mean density higher than that of water. A closed, rigid float element having a mean density equal to or lower ... | 08/03/1993 |
| 5214620 | Electrically driveable shockwave source An electrically driveable shockwave source for generating acoustic shockwaves of the type suitable for medical therapy, as a coil arrangement and a membrane disposed adjacent the coil arrangement. The membrane and/or the coil arrangement is formed by a mu... | 05/25/1993 |
| 5191560 | Sound wave generator for therapeutic purposes This invention relates to a sound wave generator with a variable effective aperture angle according to the electromagnetic principle for therapeutic applications and particularly for the contactless smashing of a concrement situated in the body of a livin... | 03/02/1993 |
| 5187691 | Underwater signaling device and method A signaling apparatus for generating an audible sound includes a housing containing a cylindrical chamber having two ends, an end member secured over each end, and a projectile member contained within the cylindrical chamber. The projectile member prefera... | 02/16/1993 |
| 4974216 | Acoustic energy source Disclosed is a sound source which will broadcast predetermined frequency ustical energy throughout subaqueous environmental mediums. It includes a housing body of cylindrical configuration with elongated slots located at uniform distances around the peri... | 11/27/1990 |
