Patents Assigned to Baker International Corporation
  • Patent number: 4998706
    Abstract: An elastomeric-covered shrouded impeller having a pair of disk-like shrouds enclosing vanes and vane passages which has an improved throat opening having sweeping internal sidewalls is disclosed. A three-piece mold core is utilized to form the vane passage and the sweeping curved throat inlet of the impeller.
    Type: Grant
    Filed: March 21, 1988
    Date of Patent: March 12, 1991
    Assignee: Baker International Corporation
    Inventor: John Hyll
  • Patent number: 4936632
    Abstract: A self-propelled continuous mining machine includes a mobile frame assembly having a front end portion with a boom assembly pivotally retained thereon. A dust collecting system is positioned on the mobile frame assembly for inducing a flow of air through a hollow interior portion of the boom assembly. As a dislodging head removes material from a mine face, the dust collecting system draws airborne dust created by the dislodging head through a hollow interior of the boom assembly and into the collecting system mounted on the mobile frame assembly. Two portions of the boom assembly are pivotally connected to portions of the collecting system mounted on the mobile frame assembly to provide pivoting joints to allow the collecting system to draw airborne dust through the boom assembly with the boom assembly in any preselected position relative to the mobile frame assembly.
    Type: Grant
    Filed: March 20, 1989
    Date of Patent: June 26, 1990
    Assignee: Baker International Corporation
    Inventors: Maurice K. LeBegue, Henry E. Wilson
  • Patent number: 4932516
    Abstract: A cradle assembly having longitudinal slats for supporting a conveyor belt, especially a troughed conveyor belt, in which the cradle may be folded or readily partially disassembled for easy original installation as for retrofitting into an existing conveyor belt system is disclosed.
    Type: Grant
    Filed: May 20, 1988
    Date of Patent: June 12, 1990
    Assignee: Baker International Corporation
    Inventor: Sven E. Andersson
  • Patent number: 4869818
    Abstract: An improved wastewater aeration and mixed liquor pumping arrangement for an orbital-type actuated sludge purification method includes the addition of a radial flow impeller on a shaft extension below the normal surface aerator. Both the combined radial flow impeller and surface aerator are positioned with respect to an end of a partition wall forming the flow channels of the orbital system such that both the impeller and the aerator pump the mixed liquor in the same direction, so that the mixed liquor is moved at a sufficient velocity through and around the various channels and returned. The radial flow impeller is positioned adjacent to the bottom of the orbital channel and enhances the propulsion of the mixed liquor along the bottom of the channel thus permitting deeper channels with attendant concrete and land area savings in constructing the system.
    Type: Grant
    Filed: May 8, 1987
    Date of Patent: September 26, 1989
    Assignee: Baker International Corporation
    Inventors: David DiGregorio, Mark G. Biesinger, Frederick M. Riser
  • Patent number: 4840432
    Abstract: A self-propelled continuous mining machine includes a mobile frame assembly having a front end portion with a boom assembly pivotally retained thereon. The outer end portion of the boom assembly carries a dislodging head for removing material from a mine face. A plurality of connections pivotally connects the boom assembly to the mobile frame assembly. A dust collecting system is positioned on the mobile frame assembly for inducing a flow of air through a hollow interior portion of the boom assembly. As the dislodging head removes material from a mine face, the dust collecting system draws airborne dust created by the dislodging head through a hollow interior of the boom assembly and into the collecting system mounted on the mobile frame assembly.
    Type: Grant
    Filed: July 21, 1987
    Date of Patent: June 20, 1989
    Assignee: Baker International Corporation
    Inventors: Maurice K. LeBegue, Henry E. Wilson
  • Patent number: 4816042
    Abstract: A conditioner for cooling and cleaning hot exhaust gas containing particulates has an enclosure partially filled with liquid and a gas conditioning means positioned within the enclosure. Hot exhaust gas entering the conditioning means passes through a liquid induction portion submerged in the liquid to introduce a portion of the liquid into the hot gas stream within the gas conditioner means to form a gas-liquid mixture. The hot exhaust gas-liquid mixture then flows through a contact portion of the conditioning means in which cooling of the hot exhaust gas takes place through vaporization of at least a portion of the liquid. The cooled exhaust gas-liquid mixture is then passed through a separator portion of the conditioning means in which the direction of the flow of the cooled exhaust gas-liquid mixture is changed.
    Type: Grant
    Filed: September 25, 1987
    Date of Patent: March 28, 1989
    Assignee: Baker International Corporation
    Inventor: Lars G. Olavson
  • Patent number: 4793470
    Abstract: A cradle assembly having longitudinal slats for supporting a conveyor belt, especially a troughed conveyor belt, in which the cradle may be folded or readily partially disassembled for easy original installation as for retrofitting into an existing conveyor belt system is disclosed.
    Type: Grant
    Filed: July 14, 1986
    Date of Patent: December 27, 1988
    Assignee: Baker International Corporation
    Inventor: Sven E. Andersson
  • Patent number: 4776760
    Abstract: A half-shell rubber lining for a centrifugal pump reinforced in selective regions of its outer surface with an adhesively bonded fabric mesh impregnated with a thermoset resin is disclosed.
    Type: Grant
    Filed: June 10, 1986
    Date of Patent: October 11, 1988
    Assignee: Baker International Corporation
    Inventor: Eugene J. Grisz
  • Patent number: 4753486
    Abstract: A mining machine includes a frame with a material dislodging head mounted on the end of the frame. Ground engaging tracks propel the machine within a mine along the floor of the mine to advance the dislodging head into the face of the mine to dislodge material therefrom. Roof bolting apparatus is employed for installing roof bolts at predetermined locations in the roof of the mine above the mining machine. The roof bolting apparatus is supported by a drill pit which is positioned within the frame and movable relative to the frame. The roof bolting apparatus is arranged to install roof bolts at predetermined locations above the mining machine while the mining machine is being propelled through the mine to dislodge material from the mine face.
    Type: Grant
    Filed: January 30, 1987
    Date of Patent: June 28, 1988
    Assignee: Baker International Corporation
    Inventor: Maurice K. LeBegue
  • Patent number: 4751002
    Abstract: Support of rake arms in a thickener is by sets of separate support cables and separate torque cables extending from outboard-of-the-center positions of rotating trusses extending radially of the sedimentation tank. The sets of support cables are attached in a vertical plane between spaced positions on a common point on the trusses to spaced radial positions along inner hinged rake arms so that the entire weight of the arms is taken up by the support cables. Torque cables extend from a single point on a truss generally midway of the truss but at a radially offset position from the center line of containing the support cable attachments on the truss or multiple trusses. The torquing or pulling action of the torque cables, also produces no thrust load along the rake arms. This eliminates the need of a heavy large center structure adjacent the rake arm hinges to absorb a rake arm thrust load against the hinges. The hinges are supported by relatively thin posts extending from the rotating trusses.
    Type: Grant
    Filed: January 29, 1987
    Date of Patent: June 14, 1988
    Assignee: Baker International Corporation
    Inventor: Donald L. King
  • Patent number: 4749053
    Abstract: A roller cutter drill bit adapted to drill bores in the earth comprising a bit body of steel having a plurality of bearing journals at its lower end, and a plurality of roller cutters, each having a recess therein receiving one of the journals. A radial bearing asembly for each roller cutter rotatably mounts the roller cutter on the journal, and an axial or thrust bearing assembly at the free end of each journal carries axial forces applied to the roller cutter during drilling, with the thrust bearing assembly thus being subject to rotary frictional forces and heating upon rotation of the drill bit during drilling. According to this invention, a heat dissipation member formed of material having higher thermal conductivity than steel is incorporated into the bit body. This material extends from the free end toward the attached end of the journal for conducting heat away from the thrust bearing assembly, thereby reducing bearing temperatures and providing longer bearing life.
    Type: Grant
    Filed: February 24, 1986
    Date of Patent: June 7, 1988
    Assignee: Baker International Corporation
    Inventor: Frank A. Hollingshead
  • Patent number: 4744699
    Abstract: A single-pass roof bolt adapted to drill and to be secured in a bore in the roof of a mine for supporting the roof comprising a tubular body open at one end thereof, constituting the inner end of the bolt, and a cutting structure at the opposite end of the tubular body, constituting the outer end of the bolt. The bolt is adapted to drill a bore in the mine roof upon rotation of the bolt, with the cutting structure being wider than the tubular body for forming an annulus between the tubular body and the wall of the bore. The bolt has a head at its inner end to facilitate rotation of the bolt, and to bear against the mine proof in pressurized relationship.
    Type: Grant
    Filed: May 19, 1986
    Date of Patent: May 17, 1988
    Assignee: Baker International Corporation
    Inventors: William S. Price, Timothy W. Saunders
  • Patent number: 4737272
    Abstract: A method for improving separation of the flotable phase from the non-flotable phase of a slurry of particulate material in a froth flotation machine comprising a tank, an upper outlet port for discharge of the flotable phase, and a mechanism for delivering air to the slurry in the tank to form a froth which includes a mixture of air bubbles and the flotable phase from the slurry, with the rate and selectivity of separation of the flotable phase from the slurry for predetermined size particles of the flotable phase and at a predetermined concentration of the flotable phase being dependent on the total volume and size distribution of the air bubbles generated in the slurry, the method of this invention comprising the steps of providing a quantity of slurry in the tank, generating air bubbles of relatively small size and relatively large size, and controlling the volume of air as small bubbles and the volume of air as large bubbles in response to the concentration of the flotable phase of the slurry for enhanced
    Type: Grant
    Filed: April 11, 1986
    Date of Patent: April 12, 1988
    Assignee: Baker International Corporation
    Inventors: Marian Szatkowski, Wilfred L. Freyberger
  • Patent number: 4732541
    Abstract: An elastomeric-covered shrouded impeller having a pair of disk-like shrouds enclosing vanes and vane passages which has an improved throat opening having sweeping internal sidewalls is disclosed. A three-piece mold core is utilized to form the vane passage and the sweeping curved throat inlet of the impeller.
    Type: Grant
    Filed: March 31, 1986
    Date of Patent: March 22, 1988
    Assignee: Baker International Corporation
    Inventor: John Hyll
  • Patent number: 4727760
    Abstract: The invention is directed to a connection between the equalizer beam and the walking beam in a walking beam type oil well pumping unit, the walking beam having a tail shaft rotatably mounted generally perpendicular to the longitudinal axis of the beam. The connection comprises an equalizer beam and two support members spaced from one another lengthwise of the equalizer beam and rigidly secured to the beam, each support member having an arm extending outwardly toward the other support member, and each arm having a curved downwardly-facing bearing surfaces adapted to be engaged by a respective end of the tail shaft. A retainer associated with each support member holds its respective end of the tail shaft in engagement with the downwardly-facing bearing surface when forces tending to separate the shaft from the bearing surface are applied to the shaft.
    Type: Grant
    Filed: September 19, 1986
    Date of Patent: March 1, 1988
    Assignee: Baker International Corporation
    Inventors: Larry W. Teel, Donald L. Bailey, Brian K. Davis
  • Patent number: 4706928
    Abstract: An elastomeric-covered shrouded impeller having a pair of disk-like shrouds enclosing vanes and vane passages which has an improved throat opening having sweeping internal sidewalls is disclosed. A three-piece mold core is utilized to form the vane passage and the sweeping curved throat inlet of the impeller.
    Type: Grant
    Filed: June 10, 1985
    Date of Patent: November 17, 1987
    Assignee: Baker International Corporation
    Inventor: John Hyll
  • Patent number: 4628302
    Abstract: A detector system for sensing the presence, or absence, of electrically-conductive liquid in contact with two probe members. The system includes switchable voltage sources to selectively establish a potential across capacitors connected to the probe members, and detection systems for sensing the magnitudes of charges on the capacitors. The magnitudes of the sampled charge at given intervals is indicative of the presence, or absence, of ionic liquid in contact with the probe members.
    Type: Grant
    Filed: September 14, 1984
    Date of Patent: December 9, 1986
    Assignee: Baker International Corporation
    Inventors: A. Brinkley Barr, D. Craig Edwards
  • Patent number: 4571282
    Abstract: Apparatus and method for reclaiming heat from batch digesting operations including two fluid-to-fluid exchangers fluidically interconnected to allow the passage of an inert fluid between the heat exchangers. The inert fluid passes through the inaccessible regions of the heat exchangers promoting the exchange of heat between spent digester cooking fluid and fresh digester cooling fluid without scaling, clogging or blocking the inaccessible regions of the heat exchanger.
    Type: Grant
    Filed: May 4, 1984
    Date of Patent: February 18, 1986
    Assignee: Baker International Corporation
    Inventors: Charles B. Almond, James S. Leonard
  • Patent number: 4554963
    Abstract: A fluidized bed heat exchanger having a plurality of tubes for passing a primary medium, a particulate matter bed, and side and base inlet conduits for passing the primary medium fluid into the heat exchanger with the base inlet conduit adapted to receive the primary medium and fluidizing the particulate matter bed. The primary medium passing through the inlet conduits is controllable to maintain a desired amount of fluidized particulate matter within the tubes when descaling is desired and reduced at the base inlet conduit to eliminate the fluidized particulate matter from flowing within the tubes when descaling is not desired while flow of the primary medium through the tubes is maintained.
    Type: Grant
    Filed: August 19, 1983
    Date of Patent: November 26, 1985
    Assignee: Baker International Corporation
    Inventors: Alton C. Goodwin, Mark T. Junglen, John S. Kent
  • Patent number: 4540051
    Abstract: The invention provides a method and apparatus for effecting the perforating of a well casing and the gravel packing of the perforated areas of the well casing with one trip into the well of a combined perforating and gravel packing apparatus. This desirable objective is accomplished by a design of the crossover mandrel normally employed in gravel packing apparatus. The mandrel disclosed herein provides, in its run-in position, a continuous axial passage through its entire length, permitting a detonating bar to be dropped therethrough to actuate a perforating gun. Subsequent to the perforation operation, a ball is dropped and seated on an annular sleeve carried within the hollow mandrel which permits the development of internal pressure within the mandrel.
    Type: Grant
    Filed: January 17, 1985
    Date of Patent: September 10, 1985
    Assignee: Baker International Corporation
    Inventors: Phillip W. Schmuck, John V. Salerni, Rodney J. Wetzel