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| Number | Title | Issue Date |
| 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 |
| 6775203 | Seismic seabed cable with sensor units A preferred seismic survey system includes a cable having a sensor unit. The sensor unit includes sensors for detecting acoustical energy (e.g., shear and/or pressure waves) and is disposed in a decoupling device that substantially acoustically uncouples the sensor ... | 08/10/2004 |
| 6643221 | Structures and methods for damping tool waves particularly for acoustic logging tools In one aspect, the invention involves an acoustic logging tool for performing acoustic investigations of subsurface geological formations. In one embodiment, the tool comprises a generally longitudinally extending tool body adapted for positioning in a bo... | 11/04/2003 |
| 6385132 | Seismic sensor shroud package A method of and an apparatus for mounting seismic vibration sensors to a cable designed for use offshore, such that the sensors are optimally coupled to the ocean floor through all cylindrical rotations when the cable has reached the bottom after being sl... | 05/07/2002 |
| 5867451 | Solid marine seismic cable assembly A solid marine seismic cable assembly includes a cable, hydrophone housings, a buoyant filler, and an outer protective jacket. The cable includes a load-bearing fiber bundle, data-transmitting wires, power conductors, optical fibers, and a protective shea... | 02/02/1999 |
| 5747754 | Method and apparatus for taking seismic measurements Method and apparatus for carrying out seismic survey includes a plurality of spaced apart seismic detecting sensors each having a geophone unit for detecting seismic activities. The sensors are linked serially with a cable. One end of each geophone unit i... | 05/05/1998 |
| 5341348 | Swivel mount for gimbal geophone The present invention discloses an apparatus for rotatably attaching a sensor to a cable. A cable mount having a groove about a substantial portion of its periphery is fixedly placed on the cable. A sensor mount having a key adapted to slide along the gro... | 08/23/1994 |
| 5231251 | Apparatus and method for the acquisition of seismic data The invention comprises a seismic recording apparatus and method. A multichannel recorder is connected to a cable formed from a plurality of signal conductors. Each of the signal conductors is connected to a different channel of the recorder via a multipl... | 07/27/1993 |
| 5131489 | Apparatus and method for the acquisition of seismic data The invention comprises a seismic recording apparatus and method. A multichannel recorder is connected to a cable formed from a plurality of signal conductors. Each of the signal conductors is connected to a different channel of the recorder via a multipl... | 07/21/1992 |
| 5010531 | Three-dimensional geophone A light weight and compact geophone assembly for detecting transient seismic signals along orthogonal axes. The geophone assembly having a plurality of geophones arranged within close proximity of each other within a compact housing. The geophones are int... | 04/23/1991 |
| 4998227 | Device for seismic exploration A device for seismic exploration is in the form of a towed streamer. The streamer is easily managed, is very flexible and has a low weight so that it may be towed with moderate tractive forces. The streamer includes a cable with an inner core, one or more... | 03/05/1991 |
| 4760295 | Vibration-sensitive transducer A transducer in the form of a long cable for producing electrical signals in response to mechanical vibration of the cable. The cable comprises an elongate magnetic member and an electrical conductor extending alongside the magnetic member, the electrical... | 07/26/1988 |
| 4733378 | Active low-profile hydrophone An active, low-profile hydrophone for use in aquatic environments having substantially turbulent flow conditions. The hydrophone is generally pisciform such that it may lie substantially flat on the water bottom and oriented in the current so as to reduce... | 03/22/1988 |
| 4637001 | Plug-in geophone case In accordance with an illustrative embodiment of the present invention, a plug-in geophone case includes a body having an open top and a cavity that receives a seismic detector having positive and negative terminals, receptacles on opposite sides of said ... | 01/13/1987 |
| 4551824 | Telemetry system adapter A telemetry system adapter for connecting a recording station to a telemetry system having a plurality of data acquisition array terminals serially connected together by cables. The adapter may be used to connect the recording station to any array termina... | 11/05/1985 |
| 4523303 | Seismic data gathering cable A seismic data gathering system includes a seismic cable having a plurality of cable sections, each including a seismic detector and a pair of signal lines for carrying the seismic energy signals produced by the detector in response to seismic energy wave... | 06/11/1985 |
| 4398276 | Apparatus and method for geophone sensor string placement A method and apparatus for gathering a geophone sensor string (10) is provided. The geophone sensor string (10) comprises individual sensors (12) for sensing motion of the earth, an interconnecting cable (14) and ring members (22). A line (30) is secured ... | 08/09/1983 |
| 4334296 | Seismic method and apparatus The seismic method comprises in one preferred embodiment, towing a long, flexible member over the earth's surface, the member having liquid-filled geophones mounted thereon or coupled thereto and suitably spaced therealong, and a seismic cable for receivi... | 06/08/1982 |
| 4078223 | Geophone and seismic cable assembly Sets of at least three geophones are oriented in different directions perpendicular to the longitudinal axis of a seismic cable in which they are assembled, so that at least one geophone in each set will detect substantially vertically-propagating reflect... | 03/07/1978 |
| 4052694 | Method and apparatus for diagnosing faults in the geophone group of a geophysical data acquisition system This invention relates to a method and apparatus for quick and convenient fault diagnosis of a geophone group-geophone cable complex of a geophysical data acquisition system used in the collection and recording of seismic information, such faults within e... | 10/04/1977 |
| 3934218 | Apparatus and method for seismic exploration New and improved apparatus and method for seismic exploration on land transports sensing geophones with a flat, lightweight, towing medium or sheet which conforms to the earth's surface. The geophones are mounted on sleds attached to the towing medium by ... | 01/20/1976 |
