Patents Represented by Attorney Arthur F. Zobal
  • Patent number: 5229018
    Abstract: This invention relates to the optimum formulation of workover and completion fluids used in oil, gas, water, or mineral recovery wells. Specifically, it discloses a method of processing peanut hulls and combining these with a suitable suspending agent in order to effect a seal against permeable formations during workover, completion, coring, drill-stem-testing, or drilling operations, without causing permanent permeability damage. Moreover, it discloses that when the procedures discovered are practiced as taught by this invention, the sealing action is reversible by simple fluid circulation and placing the well on production.
    Type: Grant
    Filed: July 2, 1991
    Date of Patent: July 20, 1993
    Inventor: Gabriel T. Forrest
  • Patent number: 5229019
    Abstract: Low fluid leakoff cementing compositions and filtration control additive for cement used in cementing operations for oil and gas wells include the use of finely ground peanut hulls.
    Type: Grant
    Filed: August 13, 1992
    Date of Patent: July 20, 1993
    Inventor: Gabriel T. Forrest
  • Patent number: 5218724
    Abstract: An electrical incinerator toilet having an incinerator chamber and a removable catalyst container for holding a removable catalyst cartridge or unit.
    Type: Grant
    Filed: November 26, 1991
    Date of Patent: June 15, 1993
    Assignee: Research Products/Blankenship Corporation
    Inventor: Ernest B. Blankenship
  • Patent number: 5203412
    Abstract: The completion tool is formed by two identical inflation valve bodies, two identical casing members screwed to the two valve bodies respectively, two identical packer mandrels with packers coupled to said inflation valve bodies, and a valve sleeve coupled to the other ends of the two casing members and to the two packer mandrels. A piston is slidably located in the sleeve valve for movement between opened and closed positions. One casing, with its valve body and packer mandrel and packer is screwed to one end of the sleeve valve and the other casing with its valve body and packer mandrel and packer is coupled to the other end of the sleeve valve by way of an adapter coupling. The packers are bonded in annular slots formed in the packer mandrels at opposite ends to allow the packers to be expanded outward. Valve structure is provided in the valve bodies for allowing the packers to be inflated. A central passageway and outer by-pass passageway are formed through the completion tool.
    Type: Grant
    Filed: June 6, 1991
    Date of Patent: April 20, 1993
    Inventor: Glenn Doggett
  • Patent number: 5199491
    Abstract: A composition and method for consolidating proppant or gravel for propping fractures about, or for gravel packs for sand control in, wells in subterranean formations characterized by an improvement in which there is used a combination of reactants, including a capped diisocyanate that will produce polyurethane and coat the catalyst in situ. Also disclosed are specific examples of satisfactory frac fluids, diluents and catalysts for both a specially designed one-pass system and, preferably, a two-pass system of putting and consolidating the proppant in a fracture.
    Type: Grant
    Filed: September 4, 1991
    Date of Patent: April 6, 1993
    Assignee: Atlantic Richfield Company
    Inventors: Helmuth Kutta, Robin Wiser-Halladay
  • Patent number: 5193859
    Abstract: A pipe coupling member for coupling together the ends of two pipes has a sleeve portion and a band member. The sleeve portion has an opening that extends between first and second ends. The band member is band shaped and is lcoated or embedded with the wall of the sleeve portion so as to be concentric therewith. The sleeve portion is made of a flexible elastomeric material and the band member is made of either fiber glass or polycarbonate plastic to provide reinforcement. The band member is stiff, yet resilient. The band member is confined to a central portion of the sleeve portion so that the first and second ends are flexible. The coupling member is manufactured using an annular mold. In the production process, the band member is supported and located within the central portion of the mold annulus by plural pins extending from the mold ends in a longitudinal direction. The annulus is then filled with elastomeric material. After molding, the pins are pulled out of the coupling member.
    Type: Grant
    Filed: May 6, 1991
    Date of Patent: March 16, 1993
    Inventor: Robert M. McKinnon
  • Patent number: 5188754
    Abstract: Disclosed are formulations for producing chemical solvent admixtures that can be employed to clean a surface for further work; and that can be applied to cloths for the cleaning operation yet alleviate problems with solvent evaporation into the atmosphere to cause many legal and environmental problems, and a method of storing and disposing of cloths soaked with the formulation that alleviates current problems.
    Type: Grant
    Filed: August 9, 1991
    Date of Patent: February 23, 1993
    Assignee: General Dynamics Corporation
    Inventors: Henry J. Weltman, Tony L. Phillips
  • Patent number: 5167087
    Abstract: A cavity is formed in the floor of a building for receiving the floor type advertising apparatus. A magnetic layer is located and secured in the lower portion of the cavity. A metal layer having an opening formed therethrough is attached to the lower side of a transparent layer and both the transparent layer and the metal layer are located in the cavity to allow the magnetic lines of force from the magnetic layer to removably secure the transparent layer and the metal layer in the cavity. In one embodiment, the lower holding layer has an opening formed therethrough in which is located an advertising layer which can be seen from above through the opening and through the transparent layer. In another embodiment, the metal layer and the magnetic layer may be reversed in positions.
    Type: Grant
    Filed: May 30, 1991
    Date of Patent: December 1, 1992
    Inventor: George W. Plumly
  • Patent number: 5163511
    Abstract: A downhole gas generator can be ignited downhole by an ignitor mixture combining with an oxidant. The ignitor mixture is provided by an ignitor subsystem. In one embodiment, the ignitor subsystem bubbles gaseous fuel through a chamber of liquid pyrophoric. The chamber is heated, wherein the fuel obtains a vapor content of the pyrophoric, forming a gaseous ignitor mixture. In another embodiment, gaseous fuel is turbulently injected into a chamber. Liquid pyrophoric enters the chamber through an orifice. The fuel passes through a nozzle wherein its pressure is reduced. This pressure drop is imposed on the pyrophoric, wherein the pyrophoric is drawn into the chamber. The fuel mixes with and atomizes the pyrophoric to form an ignitor mixture.
    Type: Grant
    Filed: October 30, 1991
    Date of Patent: November 17, 1992
    Assignee: World Energy Systems Inc.
    Inventors: Robert Amundson, Charles H. Ware, Glenn B. Topping
  • Patent number: 5161836
    Abstract: Two clamp members are formed to be fitted around the outer wall of a flexible sleeve when the ends of two pipes are located in the opening of the sleeve with adjacent edges of the two clamp members engaging each other in a clamped position for clamping the sleeve to the ends of the two pipes. Each of the clamp members has two spaced apart clamping ridges extending radially inward from its inner wall continuously between its two edges. The two clamping ridges of the two clamp members are located such that when the two clamp members are located around the outer wall of the sleeve and adjacent edges of the two clamp members engage each other, the two clamping ridges of the two clamp members form two spaced apart clamping ridges extending 360 degrees around the inside walls of the two clamp members for engaging the outside wall of the sleeve forming a seal between the sleeve and the ends of the two pipes when located in the opening of the sleeve.
    Type: Grant
    Filed: January 23, 1992
    Date of Patent: November 10, 1992
    Inventor: Robert M. McKinnon
  • Patent number: 5158679
    Abstract: The oil and water separator includes a container having an oil and water inlet, an oil receiving means with an outlet, a skimmer mechanism for moving the oil at the surface of the fluid in the container into the oil receiving means, and a water outlet. The skimmer mechanism is formed by a plurality of angularly spaced apart blades located in the interior of the container above the level of the oil receiving mean and a ramp leading to the oil receiving means. Each blade is formed by an arm having a plurality of flexible blade members extending downward from the arm such that the blade members engage the top surface of the ramp upon rotation of the blade means past the ramp to move oil at the upper level of the fluid in the container, into the oil receiving means. Fluid flow directing device is provided for directing fluid injected into the interior of the container by way of the oil and water fluid inlet, downward and outward from the axis of the container.
    Type: Grant
    Filed: August 23, 1990
    Date of Patent: October 27, 1992
    Inventor: J. R. Brock
  • Patent number: 5156887
    Abstract: A method for injecting a chemical barrier into a surface aperture is provided. The method provides a vacuum to a work site to evacuate the air from the work site. Then, an injector head is located and retained at the work site. The injector head has a gasket that forms a seal around the work site. Pressurized fluid is conveyed to the work site through a first conduit in the injector head. Any unused fluid is conveyed away from the work site by a second conduit in the injector head.
    Type: Grant
    Filed: February 19, 1991
    Date of Patent: October 20, 1992
    Assignee: General Dynamics Corporation
    Inventors: Mark K. Addison, William F. Campbell, Ralph J. Panno
  • Patent number: 5153942
    Abstract: A partially cylindrical shaped inner wall forming an arc less than 360 is secured to the inner cylindrical shaped side wall of the toilet outward of the electrical heater coil forming an enclosed inner heat insulation holding space for receiving heat insulation. An ash pan has inner and outer stainless steel pans with their upper ends secured together forming an enclosed space in which are located a copper pan against the inner pan and heat insulation material. An electrical circuit is provided having a timer for controlling the exhaust fan motor and a timer for controlling a temperature controller which drives a relay which is connected to the heater coil. A thermocouple located in the enclosed space in the ash pan is coupled to the circuit for shutting the heater down when the temperature in the bottom of the ash pan reaches a predetermined value.
    Type: Grant
    Filed: February 22, 1991
    Date of Patent: October 13, 1992
    Assignee: Research Products/Blankenship Corporation
    Inventor: Ernest B. Blankenship
  • Patent number: 5133748
    Abstract: An artificial intraocular lens or optic is attached to the capsular membrane or iris of the eye with adhesive after the human lens is removed or upon removal of a previously implanted artificial intraocular lens. The optic also may be attached to the iris with adhesive with the human lens in place to correct for deficiencies of the eye. The lens implant may have holes or wells for receiving adhesive for attachment purposes.
    Type: Grant
    Filed: February 19, 1991
    Date of Patent: July 28, 1992
    Inventor: Fred T. Feaster
  • Patent number: 5133747
    Abstract: In one implantation process, the intraocular lens implant is placed partially or completely on the anterior capsular surface of the human crystalline lens and is attached thereto by means of glue or adhesive. The implant has overall edge-to-edge dimensions such that it does not extend beyond the periphery of the human lens. In several embodiments, adhesive receiving wells are formed in the implant lens near the periphery to facilitate attachment of the implant lens to the human lens. In another embodiment, the implant lens has structure extending from its posterior side for engaging the human lens to space the implant lens from the human lens. In still another embodiment the posterior side of the implant lens is vaulted such that the central portion of the implant lens does not engage the human lens.In another implantation process, the intraocular lens is attached to a previously implanted intraocular lens for optical correction purposes. Attachment may be with adhesives or mechanical means such as clips.
    Type: Grant
    Filed: September 26, 1991
    Date of Patent: July 28, 1992
    Inventor: Fred T. Feaster
  • Patent number: 5129697
    Abstract: Telescoping upper and lower units are provided for use on the bed of a vehicle. Rotatable gears are supported on the inside of the lower unit and rack gears are secured to the inside of the upper unit for use for moving the upper unit to upward and downward positions relative to the lower unit. The rear ends of the upper and lower unit have upper and lower doors which are slidably relative to each other and are pivotally coupled to the rear walls of the upper and lower units for pivotal movement about aligned axes for opening and closing upper and lower door openings formed in the upper and lower units respectively. Rollers are provided on the bottom side of the lower unit and which may be moved to downward extending and retracted position for removing and/or installing the apparatus from or onto the bed of the vheicle. A plurality of support posts or legs are secured to the lower unit which are movaable to retracted and supporting positions for supporting the apparatus when removed from the vehicle.
    Type: Grant
    Filed: May 21, 1991
    Date of Patent: July 14, 1992
    Inventor: Verner E. Heikkinen
  • Patent number: 5129837
    Abstract: The connector has an annular side wall with ball receiving apertures formed therethrough and a rearward flared wall. An insert having a rearward flared wall and carrying electrical contacts is located in the annular side wall. An annular receptacle having ball supporting apertures formed therethrough is located between the insert and the annular side wall for movement to forward and rearward positions where the receptacle apertures are out of and in alignment respectively with the annular side wall apertures. An outer annular spring is located around the flared wall of the insert for urging the receptacle to its forward position. An outer annular member having forward and rearward grooves separated by an inward extending wall is located around the annular side wall for movement to forward and rearward positions. A second annular spring is located around the flared wall of the annular side wall and in the rearward groove of the outer annular member for urging it to its forward position.
    Type: Grant
    Filed: December 27, 1991
    Date of Patent: July 14, 1992
    Inventor: Robert A. Williams
  • Patent number: 5129112
    Abstract: A support is provided which is attachable to the side walls of the bathtub. An actuator is provided which includes an elongated tubular member and an inner member adapted to be moved to inner and outer positions relative to the tubular member. Structure is provided for coupling the actuator to the support. A D.C. powered reversible, electric motor is provided for moving the inner member of the actuator to its inner and outer position. A chair is coupled to the outer end of the inner member and a coupling apparatus is provided for pivotally and slidably coupling the chair to the support for allowing the chair to be moved to an upper and lower positions above the bottom of the bathtub and sideways when in the upper position.
    Type: Grant
    Filed: June 12, 1991
    Date of Patent: July 14, 1992
    Inventor: Richard C. Schaffer
  • Patent number: 5123122
    Abstract: A partially cylindrical shaped inner wall forming an arc less than 360.degree. is secured to the inner cylindrical shaped side wall of the toilet outward of the electrical heater coil forming an enclosed inner heat insulation holding space for receiving heat insulation. An ash pan has inner and outer stainless steel pans with their upper ends secured together forming an enclosed space in which are located a copper pan against the inner pan and heat insulation material. An electrical circuit is provided having a timer for controlling the exhaust fan motor and a timer for controlling a temperature controller which drives a relay which is connected to the heater coil.
    Type: Grant
    Filed: January 22, 1991
    Date of Patent: June 23, 1992
    Assignee: Research Products/Blankenship Corporation
    Inventor: Ernest B. Blankenship
  • Patent number: 5123482
    Abstract: Two plastic seal plates are located between the end of a manifold and the end of a heat exchanger core having oval shaped flow tubes extending through parallel fins. One seal plate has a plurality of spaced apart oval shaped apertures formed therethrough located to tightly receive the ends of the flow tubes. Oval shaped extension tubes extend from one side of said one seal plate from the oval shaped apertures for tightly receiving the ends of the flow tubes. The other seal plate has a plurality of oval shaped apertures formed therethrough for tightly receiving the extension tubes.
    Type: Grant
    Filed: November 14, 1991
    Date of Patent: June 23, 1992
    Assignee: Wynn's Climate Systems, Inc.
    Inventor: Anthony W. Abraham