Matches 1 - 50 out of 310 1 2 3 4 5 6 7 >


Match Document Document Title
9069094 Locate transmitter configured to detect out-of-tolerance conditions in connection with underground facility locate operations, and associated methods and systems  
A locate transmitter and method for performing a locate operation to detect a presence or absence of an underground facility. An applied signal is generated to be applied along the underground...
9041401 Detector with a telescopic anti-twist carrier/guide rod  
A detector with a telescopic carrier/guide rod on which at one end a measuring probe is disposed, whereby the carrier/guide rod comprises at least two anti-twist tubes longitudinally movable and...
9035656 Tracking positions of personnel, vehicles, and inanimate objects  
A device rotates at least one static magnetic field about an axis, producing a rotating magnetic dipole field, and is movable in relation to the surface of the ground. The field is periodically...
9013274 Magnetomechanical markers for marking stationary assets  
An article, system and method related to a magnetomechanical marker used to mark stationary assets. Magnetomechanical markers can be arranged in clusters and associated with stationary assets,...
8994376 Detection method and detector of a disruption, positioning method and system using said method  
This method for detecting a disturber of magnetic field amplitude comprises: the emitting (62) of several magnetic fields of different frequencies from a same uniaxial magnetic field source, the...
8988070 Metal detector for use with conductive media  
A pulse-induction type metal detector using a transmitter coil energizing pulse that selectively reduces the amplitude of background signals from conductive soils, ores and salt water. The...
8981781 Device and method for detecting an object in a subsurface  
A device for detecting an object in a subsurface, including a transmitting unit having a transmitting element designed to emit a transmission signal into the subsurface, a receiving unit having...
8970219 Search coil assembly and system for metal detection  
A search coil assembly comprises a transmit coil operable for radiating a magnetic field in response to a time varying current. The transmit coil comprises a conductive path being disposed at...
8952677 Locator for locating a current carrying conductor  
A locator for locating a concealed conductor carrying an alternating current having at least first and second frequencies, the alternating current produced by at least one dedicated signal...
8907660 Method and device for identifying a subset of measurements, method and system for locating an object, recording medium for these methods  
Identifying measurement subset comprising a disturbed measurement disturbed by a magnetic disturber includes emitting and measuring magnetic fields using mono-axial source/mono-axial transducer...
8872643 Enhanced heavy equipment proximity sensor  
A safety system for an ore processing facility using a mobile mechanisms such as dozer-type wheeled vehicles operating in proximity with an excavator providing ore to a remote milling site. The...
8860435 Locating appliance  
A locating appliance configured to sense an article includes a push-pull measurement bridge and a comparator. The push-pull measurement bridge is configured to actuate a first electromagnetic...
8842035 Sensor head  
An apparatus includes an extendable wand, and a sensor head coupled to the wand. The sensor head includes a continuous wave metal detector (CWMD) and a radar. When the wand is collapsed, the wand...
8841901 System and method for inspecting a subsea pipeline  
The present invention is directed to a system and a method for inspecting a subsea pipeline. The method comprises the steps: detecting a defect along the subsea pipeline using a subsea...
8841903 Metal detection apparatus  
A metal detection apparatus that uses one or more operating frequencies. The metal detection apparatus comprises, among other things, a transmitter unit that provides transmitter signals to a...
8820208 Mine detector detachably attached to combat boot  
Provided is a mine detector detachably attached to the combat boot, which includes a main body detachably attached to the combat boot, and provided with a power supply, a signal transmitting part...
8803527 Use of electrodes and multi-frequency focusing to correct eccentricity and misalignment effects on transversal induction measurements  
A multicomponent induction logging tool uses a nonconducting mandrel. A central conducting member including wires that electrically connect at least one of the antennas to another of the antennas....
8791701 Electromagnetic proximity detection method and unit  
Electromagnetic proximity detection method for a buried structure executed with a mobile detection device, including sensing an electromagnetic field emitted from the structure as an analog...
8786285 Apparatus for monitoring a positional relationship between a boring tool and an inground line  
An apparatus monitors a positional relationship between a boring tool and an inground line and includes a transmitter to generate a magnetic locating field from one of either the boring tool or at...
8766639 Proximity detection method and system  
The invention concerns a proximity detection of buried conductive structures before or while digging in areas being excavated. By means of the enclosed methods, devices, and setups, the ability...
8766638 Locate apparatus with location tracking system for receiving environmental information regarding underground facility marking operations, and associated methods and systems  
In a locate operation to detect a presence or absence of at least one underground facility using a locate device, an applied signal is transmitted to the at least one underground facility, and/or...
8760166 Resonant assembly, system and method for identification of a buried asset  
A resonant assembly for identification of a buried asset comprising first and second resonant members each configured to resonate at a respective different resonant frequency when excited by an...
8749240 Time domain method and apparatus for metal detectors  
This invention provides a pulse induction metal detector where a coil transmits a pulsed magnetic field to energize metal objects that are often buried or hidden in a matrix (ground) containing...
8749239 Locate apparatus having enhanced features for underground facility locate operations, and associated methods and systems  
Locate information relating to use of a locate device to perform a locate operation may be acquired from one or more input devices, logged/stored in local memory of a locate device, formatted in...
8736270 Look ahead logging system  
A technique utilizes the acquisition of data from desired subterranean regions via a logging system. The logging system is constructed for use in a wellbore and comprises a transmitter module...
8729891 Self-calibrating magnetic field monitor  
A self-calibrating magnetic field monitor is disclosed. In one embodiment, a magnetic field sensor repeatedly generates an electronic signal related to the magnetic field. In addition, a...
8729901 Measurement device and associated method for use in frequency selection for inground transmission  
A portable device and associated method are described for use with a system in which a locating signal is transmitted from within the ground during an operational procedure. The locating signal...
8729902 Metal detector analysis and display methods  
Metal detectors use graphical displays offering many analysis methods and user options which were not possible before. The new graphical detector displays allow new ways to display target...
8717028 Spring clips for use with locating transmitters  
A high-Q human-portable, battery-powered self-correcting tunable resonator in a transmitter apparatus for inducing alternating currents of high quality in buried conductors to facilitate their...
8710844 Electronic time stamping apparatus for use with an inground transmitter  
A device is described for use as part of a system in which a transmitter is moved through the ground while transmitting a signal that can be used to locate the transmitter. The device includes a...
8692554 ***WITHDRAWN PATENT AS PER THE LATEST USPTO WITHDRAWN LIST***
Locate apparatus having enhanced features for underground facility locate operations, and associated methods and systems
 
Locate information relating to use of a locate device to perform a locate operation may be acquired from one or more input devices, logged/stored in local memory of a locate device, formatted in...
8686731 Tracking positions of personnel, vehicles, and inanimate objects  
A device rotates at least one static magnetic field about an axis, producing a rotating magnetic dipole field, and is movable in relation to the surface of the ground. The field is periodically...
8659298 Advanced steering tool system, method and apparatus  
A steering tool is movable by a drill string to form an underground bore along an intended path. A sensing arrangement of the steering tool detects its pitch and yaw orientations at a series of...
8614578 Attenuation of electromagnetic signals passing through conductive material  
The present disclosure relates to determining the attenuation of an electromagnetic signal passing through a conductive material. An antenna is provided and placed in relatively close proximity to...
8614576 Metal detector having constant reactive transmit voltage applied to a transmit coil  
An electronic metal detector having, a transmit coil arranged and adapted to transmit an alternating magnetic field associated with a reactive transmit coil voltage, the transmit coil being...
8614577 Automatic anisotropy, azimuth and dip determination from upscaled image log data  
A method of determining anisotropy in a borehole is disclosed. An array of measurements along the borehole is obtained and a first depth in the borehole is selected. An arbitrary plane oriented...
8593163 Surface-conforming obscured feature detector  
A surface-conforming obscured feature detector includes a plurality of sensor plates flexibly connected together, each having a capacitance that varies based on the dielectric constant of the...
8526925 Environment independent user preference communication  
Included are embodiments of a method for communicating user preferences to at least one environment. At least one embodiment includes receiving a request from an environment for preference...
8476897 Method and system for locating a person and medium comprising instructions for performing the method  
A method for localizing a person in surroundings equipped with fixed electrical appliances includes measuring an electromagnetic field radiated by one or more of these fixed electrical appliances...
8476906 Methods and apparatus for generating electronic records of locate operations  
Methods and apparatus for detecting a presence or absence of an underground facility and generating electronic records of locate operations are described herein. An exemplary apparatus includes an...
8456159 Stabilization system for sensors on moving platforms  
A stabilized field sensor apparatus collects field data, in particular magnetic field data, with reduced motion noise. The apparatus includes a tear drop shaped housing, a tow frame in the...
8427163 Spot indicating metal detector apparatus  
A spot indicating metal detector apparatus rides on a motorized platform having a rotary framework having a plurality of metal detectors mounted thereon with a plurality of metal detector coils...
8421464 Deep look electromagnetic detection and imaging transceiver (EDIT) system for detecting underground passageways  
An underground tunnel detection system does not employ radar. Instead, an automatic frequency control is used to keep a continuous wave (CW) transmission tuned to the resonant frequency of a...
8400155 Methods and apparatus for displaying an electronic rendering of a locate operation based on an electronic record of locate information  
Methods and apparatus for providing on a display device an electronic rendering of a locate operation to detect a presence or an absence of an underground facility. One or more electronic...
8400156 Installation of service tee marker fixture having disk marker and concentric attachment sleeve  
A service tee marker fixture comprises a disk marker and a cylindrical attachment sleeve fastened concentrically to the disk marker and constructed of a flexible material which provides a...
8332191 Correction factors for electromagnetic measurements made through conductive material  
The present disclosure relates to determining attenuation factors relating to an electromagnetic signal passing through, a conductive material seen by a real sensor. A sensor is provided and...
8310237 Apparatus for and method of detecting a conductive object  
The invention relates to an apparatus for detecting a conductive object (5). The apparatus comprises at least one transmitting device (2), which is operative to generate a first changing magnetic...
8310236 Continuous wave metal detector  
A training set including a target object set and a clutter object set is accessed. It is determined that the training set includes multiple types of targets or multiple types of clutter. The...
8299936 Method and apparatus for establishing low frequency/ultra low frequency and very low frequency communications  
A method for generating electromagnetic waves in the ELF/ULF comprising the steps of using a ground-based Horizontal Electric Dipole (HED) antenna to send electromagnetic pulses upwardly in the...
8278918 Method for operating of a metal detection system and metal detection system  
A method for operating of a metal detection system may comprise a balanced coil system with a transmitter coil that is connected to a transmitter unit, which generates transmitter signals having a...

Matches 1 - 50 out of 310 1 2 3 4 5 6 7 >