Patents Represented by Attorney Charles J. Speciale

Find this attorney in the Justia Lawyer Directory

  • Method for detecting fuel dilution of marine lubricating oils
    Patent number: 5169785
    Abstract: Vanadium in marine diesel lubricating oils resulting from raw fuel dilution is detected and quantified by way of an analytical technique employing electron spin resonance (ESR). Dilution of the lubricating oil with residual fuel oils results in the presence of vanadium in the lubricating oil in a form which is capable of being observed by ESR; by contrast, vanadium resulting from the presence of fuel oil combustion products (pentavalent vanadium) in the lubricating oil is not observed by ESR. The method therefore enables fuel vanadium, typically present as vanadyl porphyrins, to be differentiated from vanadium resulting from blow-by in the engine so that the operating condition of the engine may be monitored.
    Type: Grant
    Filed: October 26, 1990
    Date of Patent: December 8, 1992
    Assignee: Mobil Oil Corporation
    Inventors: Lawrence J. Altman, Paul T. Reischman
  • Synthesis of crystalline silicoaluminophosphate composition
    Patent number: 5169614
    Abstract: This invention relates to a new crystalline silicoaluminophosphate composition, to a new and useful improvement in synthesizing said crystalline composition and to use of said crystalline composition prepared in accordance herewith as a catalyst component for organic compound, e.g. hydrocarbon compound, conversion.
    Type: Grant
    Filed: April 8, 1988
    Date of Patent: December 8, 1992
    Assignee: Mobil Oil Corporation
    Inventors: Clarence D. Chang, John D. Lutner
  • Rack for collecting recyclable materials
    Patent number: 5169101
    Abstract: A rack for supporting flexible bags in an open condition.
    Type: Grant
    Filed: May 31, 1991
    Date of Patent: December 8, 1992
    Assignee: Mobil Oil Corporation
    Inventors: Richard Wenzel, Louis E. Sable
  • Multifunctional additives to improve the low-temperature properties of distillate fuels and compositions containing same
    Patent number: 5167671
    Abstract: The low-temperature properties of distillate fuels are improved when reaction products of pyromellitic dianhydride and amonoalcohols and/or amines with long chain hydrocarbyl groups are incorporated therein.
    Type: Grant
    Filed: December 3, 1990
    Date of Patent: December 1, 1992
    Assignee: Mobil Oil Corporation
    Inventors: David J. Baillargeon, Angeline B. Cardis, Dale B. Heck
  • Apparatus for rotating a transducer assembly of a borehole logging tool in a deviated borehole
    Patent number: 5168470
    Abstract: A borehole logging tool having a dipole acoustic energy source and at least one spaced-apart dipole acoustic energy receiver is lowered into a deviated borehole. A motor rotates the source and receiver about the axis of the borehole tool. A first signal is produced representing source and receiver rotational position relative to rotational position of the borehole tool. A second signal is produced representing rotational position of the borehole tool relative to a vertical direction. A comparator produces a third signal of the difference between the first and second signals as a representation of source and receiver rotational position relative to the vertical direction. The motor rotates so as to minimize such third signal, thereby rotating the focus of the source and receiver in a direction perpendicular to the eccentricity of the borehole tool in the deviated borehole.
    Type: Grant
    Filed: January 23, 1992
    Date of Patent: December 1, 1992
    Assignee: Mobil Oil Corporation
    Inventors: Charles L. Dennis, Denis P. Schmitt
  • Production of gasoline and ether from methanol with feedstock extraction
    Patent number: 5167937
    Abstract: An integrated reactor system for converting methanol or the like to ether and gasoline hydrocarbons. Alcohol feedstock containing water is extracted with olefinic liquid and reacted catalytically to produce tertiary ether. Unreacted alcohol and olefin vapor separated from etherification effluent is converted along with aqueous alcoholic raffinate in a zeolite catalysis step to produce gasoline and paraffinic intermediate. By dehydrogenating the C.sub.3 -C.sub.5 paraffins, an olefinic liquid rich in isoalkenes is obtained for recycle to the extractor as solvent for alcohol feedstock.
    Type: Grant
    Filed: May 14, 1991
    Date of Patent: December 1, 1992
    Assignee: Mobil Oil Corporation
    Inventors: Mohsen N. Harandi, Hartley Owen
  • Process for the production of tertiary alkytl ethers from FCC light naphtha
    Patent number: 5166455
    Abstract: A process has been discovered for the conversion of C.sub.5 -C.sub.7 olefinic hydrocarbons, such as those contained in FCC light naphtha, to iso-butene-rich and isoamylene-rich streams in an integrated process for the production of MTBE and TAME. The process involves the initial separation of the isoamylene-rich C.sub.5 -fraction of the feedstream which is converted to TAME. The C.sub.6 -C.sub.7 fraction plus unreacted C.sub.5 's are converted by olefin interconversion with medium pore zeolite catalyst into an isobutylene and isoamylene-rich stream which is then used as feedstream for etherification to MTBE and TAME.
    Type: Grant
    Filed: January 16, 1992
    Date of Patent: November 24, 1992
    Assignee: Mobil Oil Corporation
    Inventors: Arthur A. Chin, Frederick J. Krambeck, Stephen S. Wong, Sergei Yurchak
  • Gravel packing of wells with flow-restricted screen
    Patent number: 5165476
    Abstract: A method and apparatus for gravel packing an interval of a wellbore wherein a permeable screen having a means for restricting fluid flow from the annulus into the upper portions of the screen is positioned adjacent the wellbore interval. The flow-restrictive means may be comprised of any material which remains substantially solid during circulation of the gravel slurry but preferably is a material that can be removed, e.g. by melting or dissolving, after the gravel has been placed. Examples of such material are (1) blends of waxes; (2) eutectic compounds formed by combining organic compounds; (3) salts; and (4) asphaltenes which are soluble in crude oil. The flow-restrictive means also may be formed of a perforated metal sleeve which is dissolvable by acid.
    Type: Grant
    Filed: June 11, 1991
    Date of Patent: November 24, 1992
    Assignee: Mobil Oil Corporation
    Inventor: Lloyd G. Jones
  • Coating composition for application to a thermoplastic film for reducing the coefficient of friction and blocking characteristic of the film without reducing the film's transparency
    Patent number: 5166242
    Abstract: A coating composition for application to a thermoplastic film, such as polypropylene film, the coated film and the method for coating the film are disclosed. The coating composition includes an acrylic copolymer, a slip agent and, optionally, a water dispersible wax. The acrylic copolymer can be an emulsion or a solution. The acrylic copolymer preferably includes at least 5 weight percent of a polar, functional comonomer; has an average molecular weight of at least about 10,000; and has a glass transition temperature of about 30.degree. C. to about 100.degree. C.
    Type: Grant
    Filed: September 14, 1990
    Date of Patent: November 24, 1992
    Assignee: Mobil Oil Corporation
    Inventors: Shaw-Chang Chu, Hee C. Park, Robert E. Touhsaent
  • Etherification process with hydrogen rejuvenation
    Patent number: 5166454
    Abstract: A multistage process for etherifying C.sub.4.sup.+ aliphatic hydrocarbon feedstock containing isoalkane including the step of contacting the hydrocarbon feedstock with dehydrogenation catalyst at elevated temperature under dehydrogenation reaction conditions to obtain C.sub.4.sup.+ isoalkene and hydrogen, and separating dehydrogenation effluent to obtain an olefinic stream rich in isoalkene and a hydrogen stream.The olefinic stream and aliphatic alcohol are contacted in an esterification stage under partial etherification conditions with a regenerable inorganic metal oxide acid solid catalyst to convert a major amount of the isoalkene to C.sub.5.sup.+ tertiary-alkyl ether.
    Type: Grant
    Filed: May 6, 1991
    Date of Patent: November 24, 1992
    Assignee: Mobil Oil Corporation
    Inventors: Mohsen N. Harandi, Hartley Owen
  • Method for evaluating core samples from x-ray energy attenuation measurements
    Patent number: 5164590
    Abstract: X-ray attenuation measurements at two or more energies are carried out on core samples of earth materials for use in determining the relative contributions of Compton scattering and photoelectric absorption to the attenuation of the beams of X-rays by the samples. The measurements are utilized to calculate material bulk density, responsive to the difference in attenuation measured with respect to beams of two different X-ray energies and the attenuation of the beams of one of X-rays.
    Type: Grant
    Filed: July 5, 1991
    Date of Patent: November 17, 1992
    Assignee: Mobil Oil Corporation
    Inventors: Mary E. Coles, Ernest L. Muegge
  • Method for measuring electrical resistivity of a core sample of porous rock during water drainage and imbibition
    Patent number: 5164672
    Abstract: A two-phase fluid, flow having a first fluid and an immiscible second fluid, is passed through a core sample. The core sample is scanned with X-rays to produce a display of fluid distribution within the core sample. Electrical resistivity is measured along the length of the core sample for those intervals having uniform first fluid distribution. The two-phase flow is continued to repetitively decrease the first fluid saturation in a plurality of drainage cycles with electrical resistivity being again measured for each drainage cycle. Thereafter, the two-phase fluid flow is continued to repetitively increase the first fluid saturation in a plurality of imbibition cycles with electrical resistivity being again measured for each imbibition cycle.
    Type: Grant
    Filed: February 19, 1992
    Date of Patent: November 17, 1992
    Assignee: Mobil Oil Corporation
    Inventors: Ron E. Gilliland, Eve S. Sprunt
  • Synthesis of zeolite Beta
    Patent number: 5164170
    Abstract: A large crystal zeolite Beta having a broad range of silica-to-alumina ratios, i.e. 20-.fwdarw.1000, is synthesized with triethanolamine in the synthesis mixture along with organic directing agents such as tertraethylammonium hydroxide, tetraethylammonium bromide and tetraethylammonium fluoride. The highly silicious zeolite Beta is produced from a silica source comprising precipitated silica and high purity, high silica starter seeds.
    Type: Grant
    Filed: June 14, 1991
    Date of Patent: November 17, 1992
    Assignee: Mobil Oil Corporation
    Inventor: Mae K. Rubin
  • Fluidized catalyst process for upgrading olefins
    Patent number: 5164071
    Abstract: An improvement in iso-olefin production without substantial decrease in overall yield is obtained in an integrated process combining a fluidized catalytic cracking reaction and a fluidized catalyst olefin interconversion reaction when crystalline medium pore shape selective zeolite catalyst particles are withdrawn in partially deactivated form from the interconversion reaction stage and added as part of the active catalyst in the FCC reaction.
    Type: Grant
    Filed: February 28, 1991
    Date of Patent: November 17, 1992
    Assignee: Mobil Oil Corporation
    Inventor: Mohsen N. Harandi
  • Zeolite Beta
    Patent number: 5164169
    Abstract: A large crystal zeolite Beta having a broad range of silica-to-alumina ratios, i.e. 20.fwdarw.1000, is synthesized with a chelating agent, exemplified by a tertiary alkanolamine such as triethanolamine in the synthesis mixture along with organic directing agents such as tetraethylammonium hydroxide, tetraethylammonium bromide and tetraethylammonium fluoride. The highly silicious zeolite Beta is produced from a silica source comprising precipitated silica and high purity, high silica starter seeds.
    Type: Grant
    Filed: June 14, 1991
    Date of Patent: November 17, 1992
    Assignee: Mobil Oil Corporation
    Inventor: Mae K. Rubin
  • Multiple fractures from a single workstring
    Patent number: 5161618
    Abstract: A method for producing multiple fractures by a single operation from a single wellbore which penetrates a fracture interval which, in turn, includes a plurality of zones which break-down under different fracturing pressures. Fracturing fluid is delivered from a workstring directly to different levels within a section of the wellbore which lies adjacent the fracture interval through a plurality of alternate paths which, in turn, lie substantially adjacent to the zones to be fractured.
    Type: Grant
    Filed: August 16, 1991
    Date of Patent: November 10, 1992
    Assignee: Mobil Oil Corporation
    Inventors: Lloyd G. Jones, Malcolm K. Strubhar, William P. Donlon
  • Catalytic olefin hydration for ether production
    Patent number: 5162591
    Abstract: A process for production of dialkyl ether by hydration and etherification of olefinic feedstock containing at least one lower alkene by contacting the olefinic feedstock and water in a catalytic reaction zone with porous solid metallosilicate acidic catalyst under olefin hydration and etherification conditions. Improvement is achieved by recovering a first fluid effluent stream from the reaction zone; splitting the first fluid effluent stream into a liquid product recovery stream and a fluid recycle stream; and passing the fluid recycle stream consisting essentially of olefin, alcohol and ether in effluent stream proportions for feeding to the reaction zone along with fresh olefinic feedstock and fresh water, wherein the amount of fluid recycle stream is sufficient to maintain a homogeneous single fluid reaction phase in the reaction zone.
    Type: Grant
    Filed: July 25, 1990
    Date of Patent: November 10, 1992
    Assignee: Mobil Oil Corporation
    Inventors: James H. Beech, Jr., James A. Stoos, Francis P. Ragonese
  • Highly porous amorphous titania and titania/silica phases
    Patent number: 5162283
    Abstract: There is provided a highly porous amorphous titania or titania/silica material. The material may be prepared by gelling a reaction mixture comprising hydrolyzable titanium and optionally, hydrolyzable silicon compounds, such as titanium diisopropoxide (2,4-pentanedionate) and tetraethylorthosilicate, a nonaqueous solvent, such as ethanol, and water, followed by drying the gel. The titania or titania/silica material may be used as a catalyst, a catalyst support or a sorbent.
    Type: Grant
    Filed: January 22, 1991
    Date of Patent: November 10, 1992
    Assignee: Mobil Oil Corporation
    Inventor: Ahmad Moini
  • Apparatus for treating formations using alternate flowpaths
    Patent number: 5161613
    Abstract: A method and apparatus for treating multiple strata in a single operation from a single wellbore which penetrates a treatment interval which, in turn, includes a plurality of strata which, in turn, have different permeabilities. A treating fluid (e.g. consolidating agent, acid, etc.) is delivered directly to different levels within a section of the wellbore adjacent the interval to be treated through a plurality of alternate paths which, in turn, lie substantially adjacent to the strata to be treated.
    Type: Grant
    Filed: August 16, 1991
    Date of Patent: November 10, 1992
    Assignee: Mobil Oil Corporation
    Inventor: Lloyd G. Jones
  • End clamp stops for plastic reclosable fastener
    Patent number: 5161286
    Abstract: A thermoplastic bag having a zipper that is operated by a slider is provided with end termination clips that firmly holds the two zipper elements together to resist stresses applied by normal use and also stops the slider from going off past the end of the zipper. The end termination clip is formed by clamps consisting of plastic members between which are sandwiched the zipper and fin and wherein the clamping members are held together by a plastic rivet through the film. In one embodiment the end termination clips include hook structure for engaging a detent in the slider which provides the bag user with the feel of a definite parking position for the slider when the bag is closed.
    Type: Grant
    Filed: March 22, 1991
    Date of Patent: November 10, 1992
    Assignee: Mobil Oil Corporation
    Inventors: F. John Herrington, Jr., Eric A. St. Phillips