Did You Know...
...that one person who claimed to be the inventor of the television is Russian emigre Vladimir Zworykin? In 1929 David Sarnoff, founder of RCA, asked Zworykin what it would take to develop TV for commercial use. He said: a year and a half and $100,000. In reality, it took 20 years and $50 million! Before his death in 1982 at the age of 92, Zworykin said of his invention: "The technique is wonderful. It is beyond my expectations. But the programs! I would never let my children even come close to this thing."
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| Application No. | Application Title | Issue Date |
| 20120037446 | UNIFORM DISPLACEMENT SWEEP This invention relates to operating a seismic vibrator to produce a uniform displacement sweep wherein the baseplate drive is connected to the baseplate and the baseplate is moved in an up and down or reciprocating pattern creating displacement of the earth. The recipro... | 02/16/2012 |
| 20120037445 | METHOD FOR CREATING AN IMPROVED SWEEP FOR A SEISMIC SOURCE An adapted seismic vibrator for obtaining a true ground force comprising: a baseplate pad; a baseplate drive system, wherein the drive system is connected to the baseplate pad and moves the baseplate pad up and down; a vibrator controller electronics, wherein the electr... | 02/16/2012 |
| 20110297476 | MARINE MECHANICAL SEISMIC SOURCE A marine seismic source comprises a housing having a central axis, an open end, and a closed end opposite the open end. In addition, the source comprises a piston coaxially disposed within the housing. In addition, the source comprises a flywheel disposed within the hou... | 12/08/2011 |
| 20110198148 | SEISMIC TRANSDUCERS AND BASEPLATES HAVING EXTERNAL DAMPENERS AND METHODS OF USE Methods and systems are provided for inducing seismic vibrations into subterranean formations. Seismic transducers may comprise a frame, a reaction mass, a driver, and a baseplate. The driver actuates the reaction mass, imparting a vibratory energy to the baseplate. Thi... | 08/18/2011 |
| 20110180346 | Determining the Polarity of Movement of an Actuator Mass in a Seismic Vibrator A technique or mechanism for use with a vibrator to be employed for subterranean surveying includes receiving, from a sensor, a unipolar indication of movement of an actuator mass of the vibrator. According to the indication from the sensor, a correlation is determined ... | 07/28/2011 |
| 20110139537 | Magnetic mass-lift impulsive seismic energy source including repelling electromagnets and reaction mass damping A seismic energy source includes a base plate having a first electromagnet thereon. A reaction mass has a second electromagnet thereon. A switchable current source is connected to the first and second electromagnets such that the first electromagnet repels the second el... | 06/16/2011 |
| 20100276224 | Seismic Vibrator Controlled by Directly Detecting Base Plate Motion A seismic vibrator has a base plate with at least four isolators isolating a frame from the base plate. Each of these isolators is offset from the plate's footprint on shelves to free up area on the plate's top surface. An accelerometer disposed directly on the base pla... | 11/04/2010 |
| 20100071989 | Apparatus and Method for Generating a Seismic Source Signal A seismic source signal generator includes a mass, a primary accumulator and a secondary accumulator, the secondary accumulator having an internal volume smaller than an internal volume of the primary accumulator. A method for generating a signal using a seismic vibrato... | 03/25/2010 |
| 20090321175 | Seismic vibrator A seismic vibrator includes a transducer, a reactive mass, a base plate to couple motion of the reactive mass to subsurface formations and a linkage system configured to couple motion of the transducer to the reactive mass and the base plate. The linkage system cooperat... | 12/31/2009 |
| 20080149416 | DOWNHOLE ACOUSTIC SOURCE An acoustic source for delivering acoustic energy to a ground formation, particularly a rock formation, the source including (a) a solenoid to generate an electromagnetic field, (b) a bullet positioned within the influence of the electromagnetic field, (c) a casing surr... | 06/26/2008 |
| 20080110691 | DOWNHOLE SEISMIC SOURCE Elastodynamic waves are generated by a tool having a hammer rotatably connected with a housing by a first hinge and an actuator arm rotatably connected with the hammer by a second hinge. An axial force applied to the actuator arm by a drive shaft and spring is translate... | 05/15/2008 |
| 20070240930 | Apparatus and Method for Generating A Seismic Source Signal A seismic source signal generator includes a mass, a primary accumulator and a secondary accumulator, the secondary accumulator having an internal volume smaller than an internal volume of the primary accumulator. A method for generating a signal using a seismic vibrato... | 10/18/2007 |
| 20070235250 | Seismic source/receiver probe for shallow seismic surveying Systems and methods are implemented for evaluating underground structures and objects, particularly relatively shallow underground structures and objects, using a seismic or acoustic source signal and a resulting seismic or acoustic wave. A discrete or unitary apparatus... | 10/11/2007 |
| 20070205042 | APPARATUS AND METHOD FOR GENERATING A SEISMIC SIGNAL A seismic signal generating system comprises a hammer positionable to impact a baseplate assembly. An actuator acts cooperatively with the hammer to urge the hammer to impact the baseplate assembly. A friction brake is actuated to impart a friction force to the hammer. ... | 09/06/2007 |
| 20060180386 | Acoustic stimulation tool with axial driver actuating moment arms on tines An apparatus for generating acoustic waves, the apparatus having: a support structure; two tines extending from the support structure so that proximal ends of the two tines are attached to the support structure so that distal ends of the two tines are positioned with st... | 08/17/2006 |
| 20060118353 | Rotary actuated seismic source and methods for continuous direct-push downhole seismic testing Remotely operated rotary actuated shear wave generating apparatus and methods that generate horizontally polarized vertically propagating shear waves for use in down-hole shear wave velocity measurements. Seismic signals are generated by an offset mass rotating in a pla... | 06/08/2006 |
| 20060081414 | Method of seismic evaluation of subterranean strata A method of conducting seismic evaluation of a subterranean formation wherein a rigid, elongate member having a first end and a second end is positioned such that the first end of the elongate member is at a point on the earth's surface, imparting an impulsive force to ... | 04/20/2006 |
| 20060076183 | Marine seismic acquisition method and apparatus A marine seismic source method capable of retaining low frequencies is disclosed. One embodiment of the method comprises a seismic source that generates an up-going wave and first down-going wave with opposite polarity. The up-going wave reflects off the ocean surface a... | 04/13/2006 |
| 20050279565 | Low frequency acoustic attenuator An attenuation apparatus, system, and method are disclosed. The attenuator is attached to a pipe and includes a housing that includes an inner sleeve and an outer sleeve. The attenuator includes one or more masses, to resonate when exposed to waves including acoustic fr... | 12/22/2005 |
| 20050263340 | Array seismic fluid transducer source An apparatus for generating a seismic signal in a wellbore includes an elongated housing configured to be disposed in the wellbore; a piston slidably disposed in an internal bore in the elongated housing; a strike plate fixed on the elongated housing proximate one end o... | 12/01/2005 |
| 20050252711 | System for imparting mechanical impulse energy to the ground The invention relates to an apparatus and method for imparting a precise amount of impulse energy to be delivered to the ground. The apparatus includes an anvil for operative deployment against the earth a hammer operatively connected to the anvil for striking the anvil... | 11/17/2005 |
| 20050224279 | Accelerated weight drop configurable for use as a shear wave seismic energy source and a method of operation thereof The present invention provides an accelerated weight drop for use as a seismic energy source, a method for operating an accelerated weight drop for use as a seismic energy source, and a seismic survey system including the accelerated weight drop. The accelerated weight ... | 10/13/2005 |
| 20050167185 | Accelerated weight drop for use as a seismic enegry source and a method of operation thereof The present invention provides an accelerated weight drop for use as a seismic energy source, a method for operating an accelerated weight drop for use as a seismic energy source, and a seismic survey system including the accelerated weight drop. The accelerated weight ... | 08/04/2005 |
| 20050167186 | Accelerated weight drop for use as a seismic energy source and a method of operation thereof The present invention provides an accelerated weight drop for use as a seismic energy source, a method for operating an accelerated weight drop for use as a seismic energy source, and a seismic survey system including the accelerated weight drop. The accelerated weight ... | 08/04/2005 |
| 20050087391 | Borehole acoustic source The present invention discloses an acoustic borehole source and method of using the source for generating elastic waves through an earth formation that may be used for logging (such as by wireline) or permanent installations. In one embodiment, the acoustic source is co... | 04/28/2005 |
