Spider Spring Patents (Class 367/183)
  • Patent number: 8788210
    Abstract: Job monitoring methods and apparatus for logging-while-drilling equipment are disclosed. A disclosed example method includes identifying a downhole scenario based on a property of an underground geological formation, selecting a first telemetry frame type based on the identified downhole scenario, conveying an identifier representative of the selected first telemetry frame type to a downhole fluid sampling tool, and receiving a first telemetry data frame from the downhole fluid sampling tool, the telemetry data frame containing fluid analysis parameters for a fluid, and being constructed in accordance with the selected first telemetry frame type.
    Type: Grant
    Filed: March 13, 2013
    Date of Patent: July 22, 2014
    Assignee: Schlumberger Technology Corporation
    Inventors: Sylvain Ramshaw, Julian J. Pop, Peter Swinburne, Kai Hsu, Steven Villareal
  • Patent number: 8433520
    Abstract: Job monitoring methods and apparatus for logging-while-drilling equipment are disclosed. A disclosed example method includes obtaining a fluid associated with an underground geological formation, analyzing the fluid with one or more sensors to form respective ones of sensor outputs, identifying a downhole scenario associated with the fluid based on the sensor outputs, the identifying being performed while the sensors are within the underground geological formation, and selecting a telemetry frame type based on the identified downhole scenario.
    Type: Grant
    Filed: October 4, 2011
    Date of Patent: April 30, 2013
    Assignee: Schlumberger Technology Corporation
    Inventors: Sylvain Ramshaw, Julian J. Pop, Peter Swinburne, Kai Hsu, Steven G. Villareal
  • Patent number: 8060311
    Abstract: Job monitoring methods and apparatus for logging-while-drilling equipment are disclosed. A disclosed example method includes obtaining a fluid associated with an underground geological formation, analyzing the fluid with one or more sensors to form respective ones of sensor outputs, identifying a downhole scenario associated with the fluid based on the sensor outputs, the identifying being performed while the sensors are within the underground geological formation, and selecting a telemetry frame type based on the identified downhole scenario.
    Type: Grant
    Filed: June 23, 2008
    Date of Patent: November 15, 2011
    Assignee: Schlumberger Technology Corporation
    Inventors: Sylvain Ramshaw, Julian J. Pop, Peter Swinburne, Kai Hsu, Steven G. Villareal
  • Patent number: 8050144
    Abstract: A vertical geophone that includes a lower frequency spring, which forms part of the geophone electrical circuit, that is positioned directly on the lower end cap This arrangement eliminates the “spring supported by a spring” arrangement of prior art geophones to minimize geophone distortion and simplify tuning of the frequency springs. A contact spring is positioned between the lower frequency spring and the lower pole piece for forming part of the geophone electrical circuit. One surface of contact spring includes a plurality of wiper surfaces that ensure consistent sliding electrical contact against either the bottom surface of the lower pole piece or the upper surface of the lower frequency spring. The obverse surface of the contact spring is preferably spot welded to the other adjacent member.
    Type: Grant
    Filed: July 8, 2009
    Date of Patent: November 1, 2011
    Assignee: Geospace Technologies LP
    Inventor: Daniel M. Woo
  • Patent number: 8027225
    Abstract: Methods and systems for determining coil eccentricity of seismic sensors configured or designed for use in seismic signal detection. A direct electrical current is applied to a moving coil of a seismic sensor such that the moving coil is dislocated from a neutral position relative to the magnetic field in the seismic sensor. A predetermined indicator is measured and eccentricity of the coil (?) relative to the center of the magnetic filed is determined using the predetermined indicator.
    Type: Grant
    Filed: March 10, 2011
    Date of Patent: September 27, 2011
    Assignee: Schlumberger Technology Corporation
    Inventors: Masahiro Kamata, Francis Maissant
  • Patent number: 7961553
    Abstract: The present invention provides a sensory signal output apparatus, which is constructed such that several frequencies of output can be realized. The sensory signal output apparatus includes a coil (15), to which an alternating signal is transmitted, a magnetic circuit (11) including a magnet (1 Ia), a top plate (1 Ib) and a yoke (1 Ic) to form an opening such that magnetic flux linkage perpendicular to the coil is induced, and a casing (1) receiving the magnetic circuit therein. The sensory signal output apparatus further includes a first vibration unit (10a) having the magnetic circuit, which responds to a magnetic field depending on a direction of the input signal, thus vibrating, and a first vibrating screen (13) adhered or welded to a ring-shaped protrusion of the yoke, thus generating a sensory signal.
    Type: Grant
    Filed: March 14, 2007
    Date of Patent: June 14, 2011
    Assignee: Yea Il Electronics Co., Ltd.
    Inventor: Yun Gyu Kang
  • Patent number: 7929379
    Abstract: Methods and systems for determining coil eccentricity of seismic sensors configured or designed for use in seismic signal detection. A direct electrical current is applied to a moving coil of a seismic sensor such that the moving coil is dislocated from a neutral position relative to the magnetic field in the seismic sensor. A predetermined indicator is measured and eccentricity of the coil (?) relative to the center of the magnetic filed is determined using the predetermined indicator.
    Type: Grant
    Filed: July 27, 2008
    Date of Patent: April 19, 2011
    Assignee: Schlumberger Technology Corporation
    Inventors: Masahiro Kamata, Francis Maissant
  • Publication number: 20110007609
    Abstract: A vertical geophone that includes a lower frequency spring, which forms part of the geophone electrical circuit, that is positioned directly on the lower end cap This arrangement eliminates the “spring supported by a spring” arrangement of prior art geophones to minimize geophone distortion and simplify tuning of the frequency springs. A contact spring is positioned between the lower frequency spring and the lower pole piece for forming part of the geophone electrical circuit. One surface of contact spring includes a plurality of wiper surfaces that ensure consistent sliding electrical contact against either the bottom surface of the lower pole piece or the upper surface of the lower frequency spring. The obverse surface of the contact spring is preferably spot welded to the other adjacent member.
    Type: Application
    Filed: July 8, 2009
    Publication date: January 13, 2011
    Inventor: Daniel M. WOO
  • Patent number: 7639566
    Abstract: A seismic sensor comprising a coil assembly suspended in a magnet field produced by a magnet assembly, and a locking mechanism for preventing the coil assembly from moving freely until a seismic event is initiated at the surface or within an earth formation to collect seismic data.
    Type: Grant
    Filed: March 23, 2008
    Date of Patent: December 29, 2009
    Assignee: Schlumberger Technology Corporation
    Inventors: Masahiro Kamata, Colin Wilson
  • Patent number: 7505369
    Abstract: A motion sensing element with position sensing includes a case, a magnet positioned within the case, a spring assembly having an electrically conductive member and a coil assembly coupled to the spring assembly. The coil assembly and magnet are moveable with respect to one another. A capacitor plate is proximate the electrically conductive member with a distance between the capacitor plate and electrically conductive member being variable as the magnet and coil assembly move. Leads connect the capacitor plate and electrically conductive member to a sensing circuit for estimating the relative positions of the magnet and coil assembly.
    Type: Grant
    Filed: December 29, 2006
    Date of Patent: March 17, 2009
    Assignee: Input/Output, Inc.
    Inventor: Arend L. Hagedoorn
  • Patent number: 7338398
    Abstract: A continuously variable transmission or clutch device (10) includes at least one pulley (18) rotatable on a pivot (28) and having a pair of adjustable sheaves (30, 34) including a movable sheave (30) movable along the pivot. An ortho-planar compliant mechanism (14) is capable of elastic deformation and operatively coupled to the movable sheave to bias the movable sheave towards or away from the other sheave. The ortho-planar compliant mechanism includes a substantially flat configuration and is deflectable therefrom as the movable sheave moves. The ortho-planar compliant mechanism can include a center platform (38) disposed on the pivot and a plurality of arms (42) extending from the platform to distal ends (46) coupled to the movable sheave.
    Type: Grant
    Filed: May 14, 2004
    Date of Patent: March 4, 2008
    Assignee: Brigham Young University
    Inventors: Michael J. Whiting, Larry L. Howell, Robert H. Todd, Spencer P. Magleby, Mark C. Anderson, Nathan O. Rasmussen
  • Patent number: 7099235
    Abstract: A vibration transducer such as a geophone, comprising a central pole piece (110) with a magnet (112) and coil (118) concentrically arranged around it. The position of the magnet (112) is fixed relative to the pole piece (110) and the coil (118) is movable relative to the magnet (112). A method of manufacturing a vibration transducer is characterised in that a bobbin carrying the coils is formed from a substantially tubular body which is positioned on a mandrel and at least one coil is wound around its outer surface, the mandrel being removed from the bobbin when the coil is complete. Another method is characterised in that the coil is formed separately and the bobbin is formed from a substantially tubular body which is positioned inside the coil and expanded to contact the coil when in position.
    Type: Grant
    Filed: August 23, 2001
    Date of Patent: August 29, 2006
    Assignee: Schlumberger Technology Corporation
    Inventor: Masahiro Kamata
  • Patent number: 5585834
    Abstract: A thermal recording apparatus includes a thermal head. Printing for multi-tone density is performed by changing an energizing time of the thermal head. The apparatus has a controller for controlling the energizing time and an interrupting circuit. The controller controls the energizing time to match to a value corresponding to a tone density for printing. The interrupting circuit puts an interrupt period of energizing for the energizing time if the energizing time is equal to or more than a predetermined time. The thermal head is pre-heated when printing data is not zero so that linear relation between the energizing time and the printing density can be obtained even if the printing density is low.
    Type: Grant
    Filed: May 24, 1995
    Date of Patent: December 17, 1996
    Assignee: Sharp Kabushiki Kaisha
    Inventor: Fumikazu Nagano
  • Patent number: 5555222
    Abstract: An improved reduced distortion spring spider for geophones is disclosed that has the desired ratio of spurious resonant frequency to the natural frequency of the geophone and can absorb the sharp lateral forces imposed on the geophone during destructive testing and field usage.
    Type: Grant
    Filed: September 26, 1994
    Date of Patent: September 10, 1996
    Assignee: Shaw Industries Limited
    Inventor: Daniel Ming-Kwong Woo
  • Patent number: 5134593
    Abstract: A spring for a seismometer for suspending one body relative to a fixed reference point within a housing including an outer ring and an inner ring interconnected by a plurality of arcuate legs. Each leg has an inner and an outer edge which may be defined by a plurality of arcs of different radii and distinct centers. The plurality of arcs further divide each leg into an inner section and an outer section of approximately equal length, and a middle section of substantially constant width and thickness. The spring provides an improved spurious resonance over the prior art springs as well as having an improved useful life.
    Type: Grant
    Filed: May 17, 1991
    Date of Patent: July 28, 1992
    Assignee: Western Atlas International Inc.
    Inventors: Roger M. Logan, James A. Sackett
  • Patent number: 4685094
    Abstract: A spring system for use with a geophone for suspending a reference mass axially and laterally. One spring of the spring system flexes more axially than laterally, and the other spring of the spring system flexes more laterally, although heavily damped, than axially.
    Type: Grant
    Filed: November 30, 1984
    Date of Patent: August 4, 1987
    Assignee: Geosource Inc.
    Inventors: Frederick A. Vitringa, Arend L. Hagedoorn
  • Patent number: 4504932
    Abstract: A geophone having a non-conductive coilform thereby avoiding the disadvantages of conductive coilform damping and allowing closer control of both sensitivity and damping solely through shunt loading of the sensing coil. The coilform is a molded plastic coilform of a high strength lightweight glass filled resin. The coilform is a dimensionally stable and temperature stable thermoplastic. Preferably, the coilform is of polyphenylene sulfide.
    Type: Grant
    Filed: February 8, 1982
    Date of Patent: March 12, 1985
    Assignee: Metrix Instrument Co.
    Inventor: Peter C. Sundt
  • Patent number: 4458344
    Abstract: A geophone spring is disclosed in which an inner ring member and an outer ring member are connected by a plurality of leg members. Each leg member includes a tapered segment that is wider at its middle than it is at either end. The tapered segment is connected to the inner ring by an inner segment, and to the outer ring by an outer segment. The inner and outer segments may also be tapered.
    Type: Grant
    Filed: March 21, 1983
    Date of Patent: July 3, 1984
    Assignee: Geosource Inc.
    Inventor: John M. Coogler
  • Patent number: 4323994
    Abstract: A new geophone spring is disclosed wherein the outer and inner rings of the spring are connected by leg members having a substantially straight segment which will pivot about an outer portion of the leg in a manner which will reduce the lateral bending forces acting upon the spring legs and increase the linearity of the spring.
    Type: Grant
    Filed: March 31, 1980
    Date of Patent: April 6, 1982
    Assignee: Geosource Inc.
    Inventor: John M. Coogler
  • Patent number: 4285054
    Abstract: A geophone comprising an annular coil-mass and a permanent magnet assembly positioned inside the annular coil-mass with their longitudinal axes generally coinciding to place the coil-mass in the magnetic field of the permanent magnet assembly. Spring spiders support the coil-mass on the permanent magnet assembly for axial and rotational movement relative to the permanent magnet assembly along and around the longitudinal axis thereof. Contacts extend outside the housing of the geophone to connect the geophone into an electrical circuit. Two axially spaced, parallel, spring spiders or diaphragm springs electrically connect the outside contacts to the terminals of the coils of the coil-mass.
    Type: Grant
    Filed: July 27, 1979
    Date of Patent: August 18, 1981
    Assignee: Mark Products, Inc.
    Inventor: William O. McNeel
  • Patent number: 4238845
    Abstract: A spring for a geophone has a plurality of spring arms connecting inner and outer concentric annular portions to resiliently resist relative movement of the annular portions along the concentric axis. Two support arms are connected to each spring arm. Each support arm has one end connected to one of the annular portions and the other end connected to the spring arm at a point spaced from the point of connection of the other spring arm to increase the natural frequency of the spring in a direction lateral to the concentric axis without changing appreciably the natural frequency of the spring along the concentric axis.
    Type: Grant
    Filed: April 10, 1979
    Date of Patent: December 9, 1980
    Assignee: Mark Products, Incorporated
    Inventors: Samuel E. Haggard, Travis E. Riley, Eugene F. Florian, deceased