Patents Represented by Attorney, Agent or Law Firm Dean P. Edmundson
  • Nephelometer instrument
    Patent number: 5604590
    Abstract: A nephelometer instrument capable of measuring from zero to 10,000 NTUs. The instrument includes four light detectors, three of which are positioned such that they measure light scattered at specific directions by a liquid sample. The fourth detector measures light transmitted through the sample. A removable light filter is also included. The light beam is focused on the front surface of the sample cell.
    Type: Grant
    Filed: February 6, 1996
    Date of Patent: February 18, 1997
    Assignee: Hach Company
    Inventors: Richard J. Cooper, Kevin A. Keilbach, Richard P. Kolman, Ernie R. Paoli, Kenneth L. Stutzman, Robert D. Stream
  • Flashlight stand and wrist mount system
    Patent number: 5601356
    Abstract: A flashlight stand and wrist mount comprising a molded high-impact resistant plastic base shaped to facilitate the hands-free positioning of a flashlight in any desired direction. The device additionally comprises straps which can encircle the forearm of a person or similarly sized object allowing an attached flashlight to be carried or mounted on the arm or other object. A flashlight can be attached to the base utilizing one or more rings attached to a pivot point on the base, allowing for directional adjustment of the flashlight.
    Type: Grant
    Filed: June 16, 1995
    Date of Patent: February 11, 1997
    Inventor: Dean K. McWilliams
  • Spikes for field aerator
    Patent number: 5586603
    Abstract: Spikes are described for use in apparatus useful for aerating soil, especially grass or hay ground. The elongated spikes are secured to a cylindrical drum. As the apparatus is towed across a field, the spikes penetrate the soil and loosen it as well as providing openings in the soil to improve absorption of water. The spikes are preferably secured to bands encircling the drum, and the spacing between bands is adjustable so that the spacing between spikes can be adjusted.
    Type: Grant
    Filed: September 6, 1995
    Date of Patent: December 24, 1996
    Inventor: Henry J. Mattis
  • Coupling system
    Patent number: 5584644
    Abstract: A coupling system for connecting or attaching a working tool to the free end of a working arm. For example, a bucket, hammer, etc. can be easily attached to the end of an articulated arm on an excavator. The coupling system includes a fixed jaw and a movable jaw which is pivotable between open and closed positions. The movable jaw includes one or more tabs which extend through an opening in the coupler housing. Pins are used to lock the movable jaw in its closed position.
    Type: Grant
    Filed: January 31, 1994
    Date of Patent: December 17, 1996
    Inventor: David Droegemueller
  • Radio-controlled trolling vessel
    Patent number: 5581932
    Abstract: A radio-controlled trolling vessel for supporting a fishing reel and line. The vessel is a pontoon-type having good stability. All operations are controlled from a remote location (e.g., on shore) by the operator. The vessel can be powered by an electric motor or gas engine, or both. A cutter or knife can be included on the vessel for cutting the line if it should become snagged.
    Type: Grant
    Filed: March 27, 1995
    Date of Patent: December 10, 1996
    Inventor: Stanley Bell
  • Rack system
    Patent number: 5579930
    Abstract: A rack system for supporting screen frames in vertically-spaced horizontal shelves. Each shelf includes sloped or stepped support surfaces which accommodate screen frames of any width and which minimize surface contact and friction between the screen frame and the support surface of the rack without adjustment. Wheels can be included under the rack to enable the rack to be used as a cart for transporting screen frames from one location to another. Side wall panels and a door can be included to enclose the structure. This enables the atmosphere inside the enclosure to be controlled.
    Type: Grant
    Filed: May 18, 1995
    Date of Patent: December 3, 1996
    Inventor: Douglas E. Brendle
  • Aerodynamic braking device
    Patent number: 5570859
    Abstract: A spoiler flap is pivotably mounted to the rearward portion of a wind turbine blade or wing to control or influence air flow over the surface of the blade or wing. The spoiler flap has forward and rearward edges. The spoiler flap can be pivoted to simultaneously raise the forward edge (into low pressure flow) and lower the rearward edge of the spoiler flap (into high pressure flow). The extent to which the spoiler flap is pivoted determines the extent to which the air flow over the surface of the blade or wing is influenced. When the spoiler flap is fully deployed or pivoted, it serves as a braking device. When it is only partially pivoted, it serves the function of power modulation.
    Type: Grant
    Filed: January 9, 1995
    Date of Patent: November 5, 1996
    Inventor: Gene A. Quandt
  • Tub grinder
    Patent number: 5570849
    Abstract: A tub grinder which includes a comb on the floor adjacent the opening. The comb is movable toward and away from the rotor to adjust the size of the opening and to regulate the rate at which bulk material is impacted by the rotor. The comb also assists in preventing wads or slugs of the material from getting to the rotor. The tub grinder can also include notched bars below the floor for holding strings and fibrous material so that the hammers can cut them into shorter lengths. An air deflector can also be included to direct air flow from the rotor back toward the rotor. An adjustable restricter can also be included adjacent the rotor.
    Type: Grant
    Filed: April 21, 1995
    Date of Patent: November 5, 1996
    Inventor: Robert R. Anderson
  • Re-usable piston filter system
    Patent number: 5549816
    Abstract: A re-usable piston filter including an elongated tubular barrel member with a closed lower end and an open upper end, an elongated tubular piston member having an open upward end and a fluid-permeable lower end, and filter means detachably secured to the lower end of the piston. Downward movement of the piston in the barrel forces liquid in the barrel through the filter and into the tubular piston. An air valve in the barrel can be opened to enable the piston to be withdrawn from the barrel. The filter at the lower end of the piston can be changed or removed as desired.
    Type: Grant
    Filed: October 31, 1995
    Date of Patent: August 27, 1996
    Assignee: Hach Company
    Inventors: Daniel L. Harp, Gary Johnson, Joe Myers
  • Spring canister for pulverizer
    Patent number: 5529253
    Abstract: A spring canister for use in a coal pulverizer to impart an axial load to a bracket assembly supporting a grinding wheel or roller. The axial load causes the bracket assembly to pivot downwardly to increase the grinding force between the wheel or roller and the grinding bowl.
    Type: Grant
    Filed: April 5, 1995
    Date of Patent: June 25, 1996
    Assignee: March-Southwestern Corp.
    Inventors: Louis J. Maillet, Matthew R. Brown, Joe H. Bunton
  • Uniform compaction of asphalt concrete
    Patent number: 5507593
    Abstract: Apparatus is described for obtaining uniform compaction of asphalt concrete to reduce or prevent cracking of the asphalt concrete surface. A mobile confinement edge force is maintained in contact with the edge surface of an asphalt concrete mat while the mat is being compacted. This is performed in a manner such that the density of the mat across the full width of the mat becomes uniform. By obtaining uniform density of each lane of the mat as it is laid significantly reduces the incidence of joint cracking and deterioration of the asphalt concrete, in the longitudinal joint area, over time.
    Type: Grant
    Filed: May 6, 1994
    Date of Patent: April 16, 1996
    Inventors: Edmund D. Hollon, Blake D. Hollon
  • Nephelometer instrument
    Patent number: 5506679
    Abstract: A nephelometer instrument capable of measuring from zero to 10,000 NTUs. The instrument includes four light detectors, three of which are positioned such that they measure light scattered at specific directions by a liquid sample. The fourth detector measures light transmitted through the sample. A removable light filter is also included. The light beam is focused on the front surface of the sample cell.
    Type: Grant
    Filed: September 8, 1994
    Date of Patent: April 9, 1996
    Assignee: Hach Company
    Inventors: Richard J. Cooper, Kevin A. Keilbach, Richard P. Kolman, Ernie R. Paoli, Kenneth L. Stutzman, Robert D. Stream
  • Tribrach device
    Patent number: 5501018
    Abstract: An improved tribrach device for attaching an optical sighting instrument to a support such as a tripod. The tribrach device includes a pivotable locking ring for securing the legs of the sighting instrument to the tribrach. The locking ring is biased towards its locked position and is easily unlocked when desired. A laser beam is projected upwardly and downwardly along a vertical axis.
    Type: Grant
    Filed: July 22, 1994
    Date of Patent: March 26, 1996
    Inventor: Sonney J. Porter
  • Portable animal excrement scoop
    Patent number: 5482337
    Abstract: An excrement scoop having an elongated handle and a cup secured to one end. A valve is associated with an aperture in the lower end of the cup. The valve permits water and air to flow out of the cup through the aperture and prevents water from entering the cup through the bottom end. The cup can be easily cleaned in a conventional toilet, for example.
    Type: Grant
    Filed: May 26, 1995
    Date of Patent: January 9, 1996
    Inventor: Archie D. Rose
  • Angle adjustable clamps
    Patent number: 5482263
    Abstract: Angle adjustable clamps are described which include a pair of jaws connected to pliers-type handles. At least one of the jaws includes two faces, and the angle between the faces is adjustable. The clamps are useful for gripping and supporting workpieces at a desired angle to each other.
    Type: Grant
    Filed: January 21, 1994
    Date of Patent: January 9, 1996
    Inventor: Kurt Kutzleb
  • Mill sweep for pulverizers
    Patent number: 5480099
    Abstract: A brush-type mill sweep which is particularly suited for pyrite removal from the floor of a vertical spindle coal pulverizer. The mill sweep is secured at one end to the spindle or the shaft skirt, and the mill sweep includes a plurality of downwardly-extending cables which are flexible and resilient for removing ungrindable rejects from the floor of the pulverizer beneath the grinding bowl.
    Type: Grant
    Filed: June 27, 1994
    Date of Patent: January 2, 1996
    Assignee: March-Southwestern Corp.
    Inventor: Joe H. Bunton
  • Bale handling apparatus
    Patent number: 5476356
    Abstract: Apparatus for use with a tractor loader, and including a support, elongated teeth attached to a frame, a retainer above the teeth which is pivotable between upper and lower positions, and a push arm between the teeth and the retainer which is movable between retracted and extended positions. The apparatus can handle various types of bales of hay, straw, etc. It can also be used to lift and transport loose fibrous material. The retainer is pivoted downwardly to grip and hold the material on the teeth. When the retainer is pivoted upwardly, the push arm can be moved to its extended position to urge the material off the forward ends of the teeth.
    Type: Grant
    Filed: January 19, 1995
    Date of Patent: December 19, 1995
    Inventor: Leonard D. Weiss
  • Carrying handle
    Patent number: D375631
    Type: Grant
    Filed: December 19, 1994
    Date of Patent: November 19, 1996
    Inventor: Roger A. Strom
  • Combined toothbrush and wall bracket
    Patent number: D375841
    Type: Grant
    Filed: June 23, 1993
    Date of Patent: November 26, 1996
    Assignee: Teledyne Industries, Inc.
    Inventor: Andrew Serbinski
  • Notebook pouch
    Patent number: D377946
    Type: Grant
    Filed: November 12, 1993
    Date of Patent: February 11, 1997
    Inventors: Diana J. French, Charlotte M. Odau