Patents Represented by Attorney John R. Jenkens & Gilchrist Kirk, Jr.
  • Patent number: 5540788
    Abstract: The present invention provides for forming an iron-phosphate conversion surface, or an iron-phosphate bi-metallic surface on metals, in situ, in internal combustion engines, pumps, hydraulic systems, compressors and other mechanical equipment and machinery, using the lubricating oil as the medium for bringing the phosphate and bi-metallic inorganic polymeric water complexes into contact with the metals in the machinery. The inorganic polymeric water complexes can be formed in accordance with U.S. Pat. Nos. 5,084,263 and 5,310,419 which are incorporated herein by reference. The bimetallic component can be any metal from Classes I through VIII of the Periodic Table. The phosphate and/or phosphate bi-metallic complexes are added to the lubricating oil while the engine is running.
    Type: Grant
    Filed: February 24, 1995
    Date of Patent: July 30, 1996
    Assignee: Mdechem, Inc.
    Inventors: Frank G. Defalco, Charles R. McCoy
  • Patent number: 5534207
    Abstract: A method for forming an article from recyclable plastic materials includes progressively heating thermoplastic solid particles simultaneously with mixing, melting and conveying the particles, prior to delivery of molten material to an extruder. The process is particularly suitable for the continuous extrusion of elongated members having a plurality of internal wall surfaces defining elongated cavities within the member. The apparatus embodying the present invention includes a heated mixer-conveyor that simultaneously heats, melts, mixes and conveys thermoplastic material from an inlet port at which the material is received in solid particulate form, to a discharge port at which the material is in a substantially liquid state. A die particularly adapted for the continuous extrusion of an elongated member having internal walls shaped by surfaces within the die cavity is also disclosed.
    Type: Grant
    Filed: July 8, 1994
    Date of Patent: July 9, 1996
    Assignee: Natural Resource Recovery, Inc.
    Inventor: Thomas N. Burrus
  • Patent number: 5530972
    Abstract: An eyewash fountain, particularly useful in industrial and laboratory environments, includes a pair of spray heads mounted on a distribution arm that is connected to a valve. The valve has a rotatable body that is connected to a base by a reversible retainer permitting the valve to be installed on either the left or right side of a sink or drain, and the distribution arm along with the spray heads swung or, alternatively, lowered to a position over the sink. The single action of moving the distribution arm over the sink is sufficient to initiate a flow of fluid to the eyes. Each of the spray heads has an internal volumetric flow regulator, a fluid pressure distributor or diffuser, and a large number of small apertures in the face of each head which direct a uniform, evenly distributed, low pressure flow of fluid to the eyes.
    Type: Grant
    Filed: January 31, 1995
    Date of Patent: July 2, 1996
    Assignee: Encon Safety Products
    Inventor: Stephen F. Tanner
  • Patent number: 5503180
    Abstract: A valve has a seat that is replaceable without disassembly of the bonnet from the body or removal of the stem and closure member. The seat is maintained in a fixed position within the body of the valve by a single retainer member that is readily separable from the body. The seat and closure member are formed of hard, wear- and corrosion resistant materials and the valve has internally disposed seal members to prevent leakage around the seat and retainer. The valve is particularly useful for controllably conveying high pressure and high temperature fluids such as steam.
    Type: Grant
    Filed: May 1, 1995
    Date of Patent: April 2, 1996
    Assignee: PGI International, Ltd.
    Inventor: Spencer M. Nimberger
  • Patent number: 5501453
    Abstract: A golf club head for drivers and fairway wood configurations having a planar face and two rear projections which extend rearwardly from the face of the golf club head is described to allow an adjustment of compression characteristics by changing the tension of the face. A tensioning assembly consisting of a nut and bolt attached to the two rear projections such that the tightening or loosening of the nut and bolt combination affects the pre-tension condition at the impact face area of the club head.
    Type: Grant
    Filed: January 27, 1995
    Date of Patent: March 26, 1996
    Assignee: Stokes & Co., Inc.
    Inventor: Douglas Hurst
  • Patent number: 5485966
    Abstract: A chopping machine comprises a frame and a plurality of detachable components which may be individually insertable through an entryway into a storage tank to be cleaned. The detachable components include traction drive belts and a chopping assembly. Hydraulic power means are provided exteriorly of the tank, and are connected by lines extending through the entryway to the frame mounted operating components inside the tanks. The chopping assembly comprises a plurality of replaceable blades radially disposed about a rotatable tubular member.
    Type: Grant
    Filed: May 3, 1994
    Date of Patent: January 23, 1996
    Assignee: Serv-Tech, Inc.
    Inventor: Robert R. Cradeur
  • Patent number: 5445601
    Abstract: A lower back support device for use in applying force to the lumbar vertebrae of the human spinal column. The device has a support plate attached to a pair of inner bands, for encircling the wearers' body to position the support plate. It also has a one-piece outer band, which fastens to its outside of the inner band to pass the plate toward the back of the wearer.
    Type: Grant
    Filed: April 26, 1994
    Date of Patent: August 29, 1995
    Assignee: TBC Orthopedics, Inc.
    Inventor: Robert R. Harlow
  • Patent number: 5431236
    Abstract: A method for processing solid materials for disposal in an underground porous formation includes separating an initial slurry mixture into predefined components, and then continually classifying, shearing, recirculating and diluting the separated components until all solid particles in the initial slurry mixture are reduced to a desirable size. The reduced solid particles are then injected, as a slurry, into a porous underground formation. The desirable size is less than a size that has been found to cause problems with present methods of injecting waste products in underground porous formations.
    Type: Grant
    Filed: August 19, 1994
    Date of Patent: July 11, 1995
    Inventor: Jasper N. Warren
  • Patent number: 5425814
    Abstract: A quick cleaning method for hydrocarbon processing is described which avoids using the time honored steamout as a cleaning step by isolating the equipment to be cleaned from the rest of the hydrocarbon processing units, establishing a circulation loop and by pumping through the equipment an aqueous solution at an elevated temperature, of an extractant, such as a terpene, and a surfactant mixture which extracts and traps contaminants in an emulsion which is normally subjected to a high shearing step before recirculation to the equipment.
    Type: Grant
    Filed: June 17, 1994
    Date of Patent: June 20, 1995
    Assignee: Serv-Tech, Inc.
    Inventors: Richard W. Krajicek, Nismanath Mehta, James R. Duffy
  • Patent number: 5417392
    Abstract: The present invention relates to a hydraulic apparatus for moving railroad switch points from side-to-side. The apparatus has a hydraulic cylinder operatively connected to the switch points to move the switch points from side-to-side in fluid communication with a power source. The direction of the movement of the switch points is controlled by a valve positioned in fluid communication between the power source and the hydraulic cylinder. The direction of movement of the hydraulic cylinder and, consequently the switch points, is determined by the direction the valve is moved. In another aspect, the present invention has a hydraulic rail pump in fluid communication with the accumulator for storing hydraulic power generated by the rail pump activated by the wheels of passing trains, and a safety reservoir in fluid communication with the accumulator for storing hydraulic power beyond the capacity of the accumulator.
    Type: Grant
    Filed: October 25, 1993
    Date of Patent: May 23, 1995
    Inventor: Michael L. Wyatt