Patents Represented by Attorney Arthur McIlroy
  • Patent number: 4537225
    Abstract: A wrapped conduit and method of forming it are described in which a layer of hot applied cold flowable waterproofing material of nonuniform thickness is flowed onto a conduit, and over said layer is spirally wrapped under tension a sheet of a nonwoven permeable randomly arranged heat-resistant thermoplastic fibers. An outer or shielding wrap of asbestos felt, plastic film, kraft paper, or the like, is also employed. The product thus obtained has a waterproof layer of essentially uniform thickness which impregnates the sheet of aforesaid fibers.
    Type: Grant
    Filed: July 25, 1983
    Date of Patent: August 27, 1985
    Inventor: Frank E. McNulty
  • Patent number: 4349398
    Abstract: Protective coating systems are reinforced by first laying a suitable mesh screen of plastic, metal or the equivalent on the surface to be protected. Thereafter, a thin layer of a coating composition, e.g., a latex cement, is poured over the mesh and allowed to set. In this operation the mesh is bonded by means of the coating composition to said surface. The screen also protrudes to the upper surface of said layer and when the latter has been allowed to set, a second layer is applied resulting in a system in which the reinforcing mesh not only aids in forming a durable bond between said first layer and said surface, but also likewise renders the two layers thus formed resistant to spalling or separating caused from expansion or contraction of said surface.
    Type: Grant
    Filed: December 8, 1980
    Date of Patent: September 14, 1982
    Assignee: Edward C. Kearns
    Inventors: Richard F. Kearns, Thomas R. Kearns, Timothy P. Kearns
  • Patent number: 4217571
    Abstract: An improved seismic prospecting system comprising the use of a closely spaced sequence of source initiations at essentially the same location to provide shorter objective-level wavelets than are obtainable with a single pulse. In a preferred form, three dynamite charges are detonated in the same or three closely spaced shot holes to generate a downward traveling wavelet having increased high frequency content and reduced content at a peak frequency determined by initial testing.
    Type: Grant
    Filed: February 16, 1978
    Date of Patent: August 12, 1980
    Assignee: Standard Oil Company (Indiana)
    Inventors: Donald R. Hughes, William H. Gumma, Neil S. Zimmerman
  • Patent number: 4185978
    Abstract: The operation of a demethanizer being used to cryogenically separate high carbon dioxide content hydrocarbon feed into liquid ethane essentially free of both methane and carbon dioxide with simultaneous production of overhead gas comprising methane and carbon dioxide without carbon dioxide icing to foul equipment by virtue of maintaining pressure at which non-gaseous carbon dioxide remains dissolved in liquid hydrocarbon, can be improved by intentionally injecting a dehydrated methane-rich stripping gas to the bottom of the demethanizer. At temperatures below about -80.degree. F., the addition of a stream such as dehydrated inlet gas stabilizes the demethanizer operation by making the carbon dioxide to ethane ratio of the liquid bottoms product less sensitive to temperature fluctuations in the reboiler system heating the bottoms. In this manner, product recovery is increased while acceptable carbon dioxide as well as methane content can be maintained.
    Type: Grant
    Filed: March 1, 1977
    Date of Patent: January 29, 1980
    Assignee: Standard Oil Company (Indiana)
    Inventors: Russell L. McGalliard, Gary W. Larrabee
  • Patent number: 4184548
    Abstract: A method for locating the position of a flame front within a rubbled oil shale retort of known dimension and location during an in situ combustion of the retort involving initiating a seismic signal at a selected position on the earth's surface relative to the retort, detecting the reflected seismic energy, and determining the position of the flame front by virtue of a maximum in the received reflected/refracted seismic signal. Repeating the process at a plurality of positions relative to the burning retort establishes the inclination of the flame front.
    Type: Grant
    Filed: July 17, 1978
    Date of Patent: January 22, 1980
    Assignee: Standard Oil Company (Indiana)
    Inventors: Irwin Ginsburgh, Christos G. Papadopoulos
  • Patent number: 4184562
    Abstract: Electroacoustical transmitting or receiving transducer comprising a flat disc piezoelectric transducer element aligned with a conical reflector. The disc transducer element is positioned to transmit acoustic energy in a direction parallel with a borehole axis and this energy is reflected by the conical reflector so that it impinges upon a borehole wall near the critical angle to provide maximum propagation of energy in the rock in one direction parallel to the borehole. The same transducer arrangement also functions as an efficient directional receiver of acoustic energy.
    Type: Grant
    Filed: November 14, 1977
    Date of Patent: January 22, 1980
    Assignee: Standard Oil Company (Indiana)
    Inventor: Barkev Y. Bakamjian
  • Patent number: 4180554
    Abstract: An improved method of regenerating a low temperature Claus catalyst bed having elemental sulfur deposited on the catalyst involving initially using a moderately hot effluent gas (typically 600.degree. to 650.degree. F.) from the first conventional Claus reactor to warm up the low temperature Claus reactor and remove deposited sulfur and after the outlet temperature of said low temperature reactor reaches a value high enough to decompose COS and CS.sub.2 (typically 600.degree. to 650.degree. F.), supplementing the moderately hot first conventional Claus reactor effluent gas with hot (typically 1000.degree. to 1200.degree. F.) waste heat boiler effluent such that the temperature of the regenerating catalyst bed can be elevated to about 700.degree. F. or higher. The intentional temperature excursion to about 700.degree. F. during catalyst regeneration improves the degree of regeneration of the catalyst bed, promotes higher catalyst activity and extends the catalyst life.
    Type: Grant
    Filed: August 14, 1978
    Date of Patent: December 25, 1979
    Assignee: Standard Oil Company (Indiana)
    Inventors: Clifton S. Goddin, Jr., John W. Palm
  • Patent number: 4173749
    Abstract: This invention concerns a synchronizing control for an electro-hydraulic seismic vibrator, which control utilizes a magnetic tape cassette reader that puts out a train of pulses of changing time spacing of a preselected pattern. This operates a counter which controls the address of a read-only memory which has a selected number of memory locations, each one holding a corresponding one of a sequence of digitized values forming a single cycle of a sine wave. By continuing to operate the counter, each of the values stored in the memory is sequentially placed in an output circuit to provide a digitized sinusoidal reference sweep signal. The cassette reader signal also drives a second counter through a frequency ratio control of the pulses provided by the cassette. By this means, the second counter can be varied to count at a different rate from the first counter.
    Type: Grant
    Filed: March 10, 1977
    Date of Patent: November 6, 1979
    Assignee: Standard Oil Company (Indiana)
    Inventor: David P. Corkhill
  • Patent number: 4167213
    Abstract: A passive method for locating the position and inclination of a flame front, within an oil-shale retort of known dimensions and location during an in situ combustion of the retort involving detecting the sound generated by the flame front, by two matched detectors separated by a fixed known distance. The pair of matched detectors are suspended vertically in a liquid-filled well which was drilled essentially parallel to the side wall of the retort. The outputs of the two detectors are fed directly to a differential amplifier and the resulting difference signal is monitored as a function of depth as the pair of detectors are raised and/or lowered in the well. The minimum in this signal corresponds to the position of the flame front within the retort. Repeated measurements in various observation wells establish the inclination of the flame front.
    Type: Grant
    Filed: July 17, 1978
    Date of Patent: September 11, 1979
    Assignee: Standard Oil Company (Indiana)
    Inventors: Richard A. Stoltz, Albert C. Metrailer
  • Patent number: 4155857
    Abstract: A process and composition are described for use in removing calcium sulfate scale from a well. An aqueous converter solution of sodium (for potassium or possibly ammonium) gluconates, hydroxides, and carbonates is used to convert the calcium sulfate into an acid soluble form, which can be removed by an acid rinse. In the aqueous converter solution, the weight ratio of hydroxide to carbonate is between about 3:2 and about 5:1, and the weight ratio of gluconate to the total amount of hydroxide and carbonate is between about 2:1 and about 5:1. The concentration of the combination of gluconate, hydroxide, and carbonate is between about 15% and about 50%. Preferably, the solution is by weight approximately 25% sodium gluconate, 5.3% sodium hydroxide, 1.8% sodium carbonate, and the remainder water.
    Type: Grant
    Filed: November 17, 1977
    Date of Patent: May 22, 1979
    Assignee: Standard Oil Company (Indiana)
    Inventor: Loyd W. Jones
  • Patent number: 4155251
    Abstract: A biasing element for use in a force-measuring system employing a circularly polarized ring laser. The biasing element is a pre-stressed photoelastic element placed in the path of the laser beam to generate a steadystate frequency difference at the output of the beat detector. In a preferred form, the biasing element is pre-stressed by bonding to a second photoelastic element and a second ring laser is positioned to detect the torque in the second element to allow monitoring of any changes in the bias level.
    Type: Grant
    Filed: May 3, 1978
    Date of Patent: May 22, 1979
    Assignee: Standard Oil Company (Indiana)
    Inventor: Theodore V. Lautzenhiser
  • Patent number: 4145161
    Abstract: This is a method and apparatus for controlling an oil-well beam pumping unit in a manner which allows increased oil production. The AC electric motor of the beam pumping unit is supplied power through a variable frequency power supply, whose frequency (and voltage) is controlled by circuitry to automatically adjust to whatever flow enters the wellbore by varying the speed of the pumping unit to maintain the speed generally proportional to the real power consumed by the pump. As the level in the wellbore can be maintained at an essentially constant minimum level, despite the relatively large hour-to-hour variations in in-flow which normally occur, the total flow from the formation into the wellbore in a given period of time is increased.
    Type: Grant
    Filed: August 10, 1977
    Date of Patent: March 20, 1979
    Assignee: Standard Oil Company (Indiana)
    Inventor: David R. Skinner
  • Patent number: 4142595
    Abstract: A process and composition are described for use in drilling shale and especially in drilling the troublesome types of shale which heretofore have been impossible to drill effectively. The aqueous drilling fluid of this invention so effectively stabilizes the shale that additions to maintain the special drilling fluid can be discontinued or drastically reduced, once the shale formation has been penetrated and drilling below the shale could even be done with conventional drilling fluids.The drilling fluid contains between about 0.2 to 1.5 pounds per barrel of flaxseed gum together with potassium and/or ammonium salts. The potassium and/or ammonium salts are used in quantities to provide a concentration of the cation of the salt of at least 10,000 ppm. As the drilling fluid is a non-clay type, a non-clay viscosifier is used. Preferably, the cation concentration is tailored to drilling fluid salinity such that the cation concentration in parts per million is approximately equal to at least 10,000.times.(1+0.025.
    Type: Grant
    Filed: February 13, 1978
    Date of Patent: March 6, 1979
    Assignee: Standard Oil Company (Indiana)
    Inventors: Duane B. Anderson, Carl D. Edwards
  • Patent number: 4124696
    Abstract: An improved method for reducing the sulfur losses associated with leakage across closed valves in a Claus type sulfur recovery plant involving the recirculating of low sulfur content Claus tail gas to the high pressure side of the closed valves. This improved method for compensating for leakage across a closed valve is particularly useful in sealing a valve in the so-called Cold Bed Adsorption plant. Thus, allowing a conventional carbon steel valve of an undercut design to be used at a temperature range from under 250.degree. F to over 650.degree. F while meeting contemporary emission standards.
    Type: Grant
    Filed: November 7, 1977
    Date of Patent: November 7, 1978
    Assignee: Standard Oil Company (Indiana)
    Inventor: Lorenz V. Kunkel
  • Patent number: 4121191
    Abstract: Apparatus for increasing the seismic data storage capacity of magnetic tape. A pair of storage registers store a sequential pair of digitized seismic data samples. A subtractor coupled to these two registers provides an output equal to the difference between the two stored samples. A decoder and a set of gates couples the difference word serially to a bit comparator starting with the most significant bit. The first logical "1" which is encountered and all the lower order bits of the same word are serially coupled to and written in a read/write memory. The decoder and gates cause a "0" to be written in a second read/write memory at the beginning of each data word, and "1's" to be written in addresses corresponding to the data written in the first read/write memory. The data in the read/write memories are addressed for reading by a read/address counter, which is incremented by an incremental shaft encoder on a drive motor of a tape recorder.
    Type: Grant
    Filed: April 5, 1976
    Date of Patent: October 17, 1978
    Assignee: Standard Oil Company (Indiana)
    Inventor: David P. Corkhill
  • Patent number: 4121297
    Abstract: A method and apparatus for correlating two time series of digital quantities comprising means for converting one of the time series to a sign bit series and means for algebraically summing values of the second series which occur at times corresponding to the zero crossings of the sign bit series. The algebraic summation includes the modification of the signs of the summed values according to the direction of the zero crossing which occurs in the sign bit series. The preferred embodiment is a field correlator for use in geophysical seismic surveying to monitor data as it is recorded. The field correlator converts a digitized pilot signal into a sign bit only series, which is then correlated to a digitized record of a geophone spread output by summing only those samples of the geophone outputs which correspond to zero crossings of the pilot signal for a given lag value.
    Type: Grant
    Filed: June 15, 1977
    Date of Patent: October 17, 1978
    Assignee: Standard Oil Company (Indiana)
    Inventor: James W. Smith
  • Patent number: 4120199
    Abstract: A method for indicating the proximity of a hydrocarbon reservoir by measurements of thermal gradients in dry holes. Due to the lower thermal conductivity of hydrocarbon-containing rock, the thermal gradients within such rock are abnormally high when compared to normal subsurface thermal gradients and the anomaly extends well beyond the boundaries of the reservoir. Geothermal gradients are measured along the entire length of deep boreholes, which have proved to be dry, or in shallow test boreholes. A comparison of the shape of such gradient curves to theoretical curves indicates the presence of a hydrocarbon deposit spaced laterally from a deep dry hole or below a shallow surface test hole.
    Type: Grant
    Filed: March 10, 1977
    Date of Patent: October 17, 1978
    Assignee: Standard Oil Company (Indiana)
    Inventor: Irshad R. Mufti
  • Patent number: 4108246
    Abstract: A process and composition are described for use in removing calcium sulfate scale from a well. An aqueous converter solution of sodium (or potassium or possibly ammonium) gluconates, hydroxides, and carbonates is used to convert the calcium sulfate into an acid soluble form, which can be removed by an acid rinse. In the aqueous converter solution, the weight ratio of hydroxide to carbonate is between about 3:2 and about 5:1, and the weight ratio of gluconate to the total amount of hydroxide and carbonate is between about 2:1 and about 5:1. The concentration of the combination of gluconate, hydroxide, and carbonate is between about 15% and about 50%. Preferably, the solution is by weight approximately 25% sodium gluconate, 5.3% sodium hydroxide, 1.8% sodium carbonate, and the remainder water.
    Type: Grant
    Filed: February 22, 1977
    Date of Patent: August 22, 1978
    Assignee: Standard Oil Company (Indiana)
    Inventor: Loyd W. Jones
  • Patent number: 4103335
    Abstract: An interrupt generator comprising an optical coupler and a number of cascaded bidirectional one shots. The input of the optical coupler is coupled to AC powerlines which provide power to a computer. The output of the optical coupler is an isolated square wave signal having the same frequency as the AC powerline. This output is used to trigger the input of the first one shot in a string of one shots. The first one shot has an output which triggers the inputs of a second one shot, which, in turn, triggers the inputs of the third, etc. The one-shot outputs provide a series of even multiples of the AC powerline frequency each synchronized with the powerline. A selected output of one of the one shots is passed through a buffer to the computer as an indication of the optimum time to sample data in a real time data acquisition system.
    Type: Grant
    Filed: January 28, 1977
    Date of Patent: July 25, 1978
    Assignee: Standard Oil Company (Indiana)
    Inventor: Joseph D. Vitali
  • Patent number: 4093420
    Abstract: This is a method of prospecting for accumulations of hydrocarbons or other minerals. At least two (and preferably more) samples of subsurface rock units are taken at different vertical depths in a plurality of locations. Each such sample is processed to recover organic material present in the rocks. From this organic residue, a number of specimens of the same palynomorph taxon are selected, and a characteristic of light absorbed or transmitted by the specific organic particles is determined. The difference in the values obtained in the same location for two sets of palynomorphs at different vertical distances (preferably same well) is called the translucency differential. This differential or the gradient (differential divided by the corresponding vertical distance between sampling points) is then plotted on a map at the location of the various points of sample collection, and a contour map or cross section is drawn.
    Type: Grant
    Filed: June 4, 1976
    Date of Patent: June 6, 1978
    Assignee: Standard Oil Company (Indiana)
    Inventors: John F. Grayson, Peter K. H. Groth