Matches 51 - 100 out of 262 < 1 2 3 4 5 6 >
Match Document Document Title
5717658 Trawling sonar system  
Disclosed is a sonar system comprising a platform, axially extendable supts projecting from the platform, a flexible cable array deployed from the platform means through said support means, and an...
5714713 Acoustic absorbing device  
An acoustically absorbing device is presented which can be mounted in the ructure of a vehicle. The acoustic absorbing device includes an acoustic barrier layer proximate the structure surface, an...
5712447 Vibrationally and acoustically insulated structure  
A vibrationally and acoustically insulated structure includes a structure using enclosing a source of internally generated noise and vibrations. The structure further includes a vibration and...
5705769 Vibrationally damped structure  
A vibrationally damped structure includes a structure that is susceptible vibrations and a constrained damping layer positioned over at least a portion of the vibrating structure. The constrained...
5706253 Acoustic receiver array assembly  
An acoustic receiver array assembly includes an underwater vehicle having a ase portion and an acoustic receiver portion. The base portion is provided with a rigid boundary wall defining a first...
5696738 Underwater sensing device for ocean floor contact  
An underwater sensing device for measuring or sensing an underwater condin proximate the floor of an ocean, lake or similar body of water. The sensing device includes an underwater sensing device...
5670233 Acoustic window and method for making the same  
A method for making polyurethane acoustic windows. A molding material is lied to a reservoir connected to the bottom of the mold to fill the mold under the influence of a vacuum applied at the top...
5666327 Portable acoustic turbulence detector  
The present invention relates to a system for studying, identifying and cacterizing thermal gradients within a volume of water. The system includes a frame formed from a plurality of PVC tubing...
5658534 Sonochemical apparatus  
A liquid is subjected to ultrasound within a stainless steel pipe (35) of wall thickness 2.5 mm. Three ultrasonic transducers (56) are equally spaced around the pipe, each fixed to one end of a...
5657296 Acoustic receiver assembly  
An acoustic receiver assembly includes a first tubular body and a multiplty of first acoustic receivers disposed on an outer surface of the first body. A second tubular body is slidably movable in...
5642332 Acoustic transducer  
An acoustic transducer assembly includes a piezoelectric ceramic crystal. The assembly also includes a pair of solid circular metal plates positioned to sandwich the piezoelectric ceramic crystal...
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...
5636183 Process and transducers submerged in a fluid for emitting low frequency acoustic waves with lightened horns  
The object of the present invention is a process wherein transducers submed in a fluid for emitting low frequency acoustic waves with lightened horns are used to reduce the frequency of emission...
5602801 Underwater vehicle sonar system with extendible array  
An underwater vehicle sonar system has sonar sensors provided in arms to plement a nose mounted array. The arms are capable of use in an extended position to provide a large diameter sonar array...
5574700 Ratchet operated kick-up bracket  
A mounting apparatus for mounting a sonar transducer assembly to an aquatic vehicle, particularly for fish finding and mapping devices. The mounting apparatus permits the transducer assembly,...
5573221 Apparatus for supporting a depth finding transducer for rotation independent of a trolling motor  
An apparatus for mounting on a trolling motor and for supporting a depth finding transducer for independent rotation comprising a bracket having an elongated end plate with an upper end and a lower...
5570322 Barracuda-repelling sound generation device  
A barracuda-repelling sound generation device including a sound generator mechanism for generating a speaker activation signal when electrically energized; a remote speaker mechanism positionable...
5546362 Depth finder transducer system  
A depth finder system of the present invention permits detection of the presence of objects within a body of water located below a body of ice. The depth finding system includes a display unit, an...
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...
5469407 Parachute array  
This invention is a parachute array in which a plurality of hydrophones are attached to the skin of a planar or volumetric parachute or affixed to strings that are positioned around a planar or...
5452266 Submersible sensor system  
A vessel, such as a submarine, has onboard sensor processing, display, and omputer control capability for an array of sensors deployed from the vessel. The array includes a plurality of cables...
5434828 Stabilizer for geophone  
This invention provides a stabilizer for a geophone which reduces the amount of movement of the geophone after deployment in a marine environment subjected to water currents or turbulence. The...
5428582 Decoupling ring  
A decoupling ring provided on the front annular face of the nose shell of a craft, surrounding the sonar array. This ring decouples the vibration in the nose shell from the fluid path. The...
5426619 Matched array plate  
An array plate for use in an underwater craft. The craft having an array of sonar elements which has a selected range of operating frequencies. The array plate having at least one layer of material...
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...
5384751 Attachment device for tethered transducer  
A submerged cable is fitted with one or more tethered transducers that are otatably supported on the cable between clamped collars spaced apart to receive a standoff device. The device has...
5373773 Anti-torpedo stern defense system  
A stern torpedo defense system uses a pair of passive sonar towed tactical etectors in tandem alignment to detect the presence and trajectory of a stern torpedo attack. The detectors are towed...
5371719 High security ultrasonic receiver apparatus  
A high security ultrasonic receiver apparatus including a rigid metal faceplate having an ultrasonic sensor affixed to the rear side thereof and adapted to sense acoustical energy transmitted to...
5363341 Level measuring device which can be assembled from components  
The invention discloses a level measuring device which can be made up from components. It comprises a sonic or ultrasonic transducer which is arranged in a first housing and forms a self-contained...
5363343 Folded hydrophone array for narrow marine vehicles  
An extendible linear sonar array for an Autonomous Underwater Vehicle (AUV) comprises a linear hydrophone array fixed in the nose of the AUV and two hydrophone array segments mounted at the leading...
5353263 Soft sonar suspension system  
An underwater transducer assembly (T or P) is mounted on an elongated cylindrical piston (32 or 90) received in a pneumatic cylinder (31 or 91). One or more springs (41 or 92) normally bias the...
5315874 Monolithic quartz resonator accelerometer  
A monolithic quartz resonator accelerometer including a monolithic quartz sensing structure with a frame, a proof mass support structure within the frame, and a resonator structure interconnecting...
5276658 Acoustic window  
A cost-effective, producible improved apparatus for and method of fabricag a transducer acoustic window for a marine environment has acceptable acoustic energy transmitting properties and...
5265069 Blanket array adhesion system  
An adhesion system utilizes a pair of liquid suction systems for adhering a lanket transducer array to the external hull of a vessel. Both liquid suction systems can be individually controlled. The...
5241519 Hydrophone assembly with vibrations isolated transducer elements  
Hydrophone transducer elements are mechanically isolated from one another vibration by suspending them in a urethane matrix molded into a cylindrical shape. A metal ring is mechanically locked in...
5231252 Sensor platform for use in seismic reflection surveys  
A seismic sensor platform comprises an open frame and a plurality of seismic motion sensors vertically positioned in a common horizontal plane in spaced relationship around the periphery of the...
5230646 Apparatus for mounting sonar device to fisherman's float tube  
An improvement is disclosed for a fishing float tube of the type formed by a pneumatic tube having a seat in the mid portion thereof which supports a person seated in the seat when the tube is...
5195373 Ultrasonic transducer for extreme temperature environments  
An ultrasonic piezoelectric transducer that is operable in very high and very low temperatures. The transducer has a dual housing structure that isolates the expansion and contraction of the...
5189642 Seafloor seismic recorder  
A method and apparatus for recording acoustical and seismic signals at the ocean bottom with minimal noise. A seafloor seismic recorder couples geophones to the water bottom, stores the seismic...
5186428 Depth gauge transducer retractor device  
A retractor device is provided for selectively positioning a depth gauge transducer into the water and below the bottom line of a pleasure boat or retracting the transducer to an upwardly facing...
5182732 Reversible fish finder apparatus  
A reversible drive for a fish-finder apparatus includes a motor, a drive gear driven by the motor, a driven gear driven by the drive gear and a fish-finder drive shaft driven by the driven gear....
5164922 Device for firmly holding seismic means, especially sources of seismic energy  
In seismic surveys at sea, with seismic devices, especially sources of seismic energy being towed behind a vessel and kept at a mutual configuration relative to each other, and with the devices...
5142497 Self-aligning electroacoustic transducer for marine craft  
A transducer apparatus for marine pleasure craft employs only gravity-induced forces to always orient its electroacoustic transducer in a downward direction or other predetermined direction. The...
5128900 Multi-component seismic vibratory source for use in marine environments  
The method and apparatus for providing elliptical polarized shear waves in a marine environment in which a shear wave source penetrates the surface sediment of a water bottom includes dual...
5117402 Support stand for marine vibrator  
A shipboard support stand for a marine vibrator of the type having characteristic revolutional shape about the vertical axis and a lower concentric guide ring surface which consists of a support...
5111805 Piezoelectric transducer  
There is disclosed, a piezoelectric transducer for generating focussed ultrasonic shock waves for use in lithotripsy. The ultrasonic shock waves are emitted in pulsed form and can be transmitted by...
5109364 Transducer for high speed boats  
A sonar transducer assembly is provided which is adapted to be mounted on the transom of a boat. The assembly includes a shaped transducer device comprising a housing having a base portion of...
5091892 Expandable sonar array structure  
An expandable sonar array structure includes a central body with a plurality of radially extendable hydrophone support arm assemblies attached to said body and including a motor-driven drive member...
5091894 Suspension device for acoustic base  
In a device for the suspension of a sonar acoustic base within its protection dome, two connection rods are used. These two connection rods are hinged, by one side, on the hull of the ship and, on...
5088068 Hand-held underwater distance measurement device  
A hand-held underwater distance measurement device has a first end having a waterproof housing which houses a digital display and a suitable electronics package, a second end housing a transceiver,...
Matches 51 - 100 out of 262 < 1 2 3 4 5 6 >