Patents Represented by Attorney, Agent or Law Firm Burd, Bartz & Gutenkauf
  • Patent number: 5552288
    Abstract: A moist unitary non-laminar chromogen agar color reactive test sheet for use in a simplified enzyme-linked immunosorbent assay (ELISA) for the diagnosis of viral, fungal, bacterial and parasitic diseases. The diagnostic test is designed for use in non-laboratory settings where the usual equipment and supplies, including running water, may not be available. The test sheet comprises chromogen agar paper (CAP) impregnated with an enzyme substrate, and electron acceptor, if needed, in agar. It is applied over a conjugate in the form of a species specific enzyme-linked anti-immunoglobulin bound to an antibody-antigen coating of a previously prepared test plate. After incubation to cause a color reaction, the results are read and interpreted in comparison with known standards.
    Type: Grant
    Filed: March 10, 1995
    Date of Patent: September 3, 1996
    Inventors: Dale A. Christensen, Peter Nash
  • Patent number: 5546678
    Abstract: A dryer has an internal drying chamber for accommodating articles that are subjected to heated circulating air to remove moisture from the articles. An air mixing chamber contains a first fan for moving air through a heater into the drying chamber. A second fan draws air out of the drying and mixing chambers and discharges air back into the mixing chamber through a filter into the external environment. The heated air in the drying chamber is mixed with fresh air and recirculated through the drying chamber to minimize heat losses and increase drying effectiveness. Ultraviolet lamps within the drying chamber destroy contaminants in the air and articles within the chamber. A boot dryer, located in the drying chamber, has fans that move air through tubes used to support boots, shoes, skates and socks. Ultraviolet light in the boot chamber destroys contaminants in the air in the boot chamber. One modification of the dryer has a bench to permit the dryer to be used as a dry sauna.
    Type: Grant
    Filed: December 5, 1994
    Date of Patent: August 20, 1996
    Inventor: Gregory L. Dhaemers
  • Patent number: 5537499
    Abstract: A laser optical fiber probe has a silica fiber core with an end terminating in an inclined surface. A silica capsule encloses the end of the fiber and locates the end of the fiber in a gas chamber. Localized heat fuses the end of the fiber opposite the inclined surface to the capsule thereby eliminating secondary light reflections.
    Type: Grant
    Filed: August 18, 1994
    Date of Patent: July 16, 1996
    Assignee: Laser Peripherals, Inc.
    Inventor: John P. Brekke
  • Patent number: 5529447
    Abstract: A vehicle for transporting a grain combine header and a row crop header of an agricultural harvesting implement having bolsters connected to wheels and a longitudinal tube extended between and connected to the bolsters. A longitudinal head rest extends between and is located above the bolsters. Swing arm assemblies mounted on the bolsters support the head rest for movement from an up position to a down position. Holders mounted on the tube are adapted to engage a portion of the header when the header is located on the head rest.
    Type: Grant
    Filed: November 28, 1994
    Date of Patent: June 25, 1996
    Assignee: May-Wes Manufacturing, Inc.
    Inventors: Mark W. Bruns, Wesley W. Bruns
  • Patent number: 5526724
    Abstract: A tool having a palm knob that is joined to a handle with a connector. The connector allows the tool to be rotated without rotating the knob. The connector has a split head that fits into a countersunk recess to hold the knob in assembled relation with the handle. This allows the knob to be readily assembled on the handle without the use of any tools or additional structures. A washer coated with a friction resistant resin is located between the knob and the handle to laterally and longitudinally stabilize the knob relative to the end of the handle.
    Type: Grant
    Filed: November 7, 1994
    Date of Patent: June 18, 1996
    Inventor: Homer F. Bruggeman
  • Patent number: 5523519
    Abstract: A sealed system for facilitating the safe transfer of hazardous material through a port in the floor of a containment enclosure to an open topped storage container positionable in precise axial alignment below the port and supported on a lift cart for vertical movement toward and away from the port. The port is defined by a vertically depending flange or enclosure ring in the floor of the containment enclosure and is closeable by a seal cover within said containment enclosure positionable for sealing engagement with the periphery of the port. The port is also closed alternately by a sturdy plastic bag supported from a seal ring engageable in leak-proof sealed relation with the port and partially contained within the storage container supported on the lift cart. A succession of bags are positioned under the port, elevated into sealed relation with the port, filled, sealed shut, severed from the sealed port and lowered and removed for permanent storage.
    Type: Grant
    Filed: July 14, 1994
    Date of Patent: June 4, 1996
    Assignee: Delaware Capital Formation, Inc.
    Inventors: Robert J. Weber, Carleton E. Jennrich, Rudolph O. Marohl
  • Patent number: 5519256
    Abstract: A control for the headlights, clearance lights, auxiliary engine brake and cruise control of a tractor trailer motor vehicle has second control switches mounted on the gear shift lever adjacent the top knob thereon. The switches are operatively associated with conventional switched mounted on the dash board of the vehicle to allow the operator to use the conventional switches or the second control switches to selectively control the headlights, clearance lights, auxiliary engine brake or cruise control of the vehicle.
    Type: Grant
    Filed: January 31, 1994
    Date of Patent: May 21, 1996
    Inventor: Eugene W. Goodridge
  • Patent number: 5516007
    Abstract: A dispenser for a flowable material has a housing with a chamber accommodating a flexible bag containing the flowable material. The bag has a neck retain on the housing with a cap or nipple mounted on the dispensing end of the housing. The housing has an open bottom end closed with a door. In one embodiment, the door is hinged to the housing. A releasable latch connected to the housing and door retains the door in the closed position. In another embodiment, the door is releasably retained a bead joined to the lower section of the housing.
    Type: Grant
    Filed: December 12, 1994
    Date of Patent: May 14, 1996
    Inventor: Donna M. Larson
  • Patent number: 5513657
    Abstract: A flexible, elastic wrist brace for use by person's requiring wrist support for engaging in rigorous activity. The brace offers generalized support to the wrist as well as lateral support to limit up and down flexure of the wrist, side to side flexure and longitudinal rotation. The brace includes a base comprised of a flat sheet member of elastic material that is formable into a sleeve. A palmar support member is fixed to the base on the palmar side thereof and includes a pocket containing a resilient stay member. Lateral support assemblies include support members located on the ulnar and radial sides of the base when it is worn on a hand and wrist. The support members are Y-shaped having a trunk and branches that diverge from the trunk. On the radial side, the branches diverge to straddle the thumb joint. On the ulnar side, the branches diverge to straddle the region of the hand interior to the joint of the little finger.
    Type: Grant
    Filed: January 17, 1995
    Date of Patent: May 7, 1996
    Inventor: Ronald E. Nelson
  • Patent number: 5505668
    Abstract: In a conventional internal gear pair system such as a planetary gear system with a small gear ratio of the internal gear to the driving pinion, common problems include tip interference and limited contact between the teeth of the gears. An internal gear pair system which avoids these problems includes a pinion meshing with an internal gear, the pinion having as few as one tooth less than the internal gear, the only contact between the pinion and the internal gear being on at least one side of a line extending diametrically through the centers of the pinion and the internal gear, and the teeth of the pinion being conjugate to the internal gear teeth.
    Type: Grant
    Filed: August 2, 1994
    Date of Patent: April 9, 1996
    Assignee: Ikona Gears Limited
    Inventors: Boris A. Koriakov-Savoysky, Igor V. Aleksahin, Ivan P. Vlasov
  • Patent number: 5503299
    Abstract: An inertial parts feeding apparatus and method for dispensing parts, such as microchips, onto a moving belt. The feeding apparatus has a housing supporting an elongated tube accommodating the microchips. A guide mounted on the housing aligns the tube with an arm having an impact shoulder and a microchip stop finger. A roller, engageable with the tube, driven by a stepping motor, moves the tube longitudinally into engagement with the shoulder causing a microchip to move out of the end of the tube and into engagement with the stop finger. The arm is released from the microchip during the time that the tube moves back to its initial position to allow the microchip to move with the belt.
    Type: Grant
    Filed: July 18, 1994
    Date of Patent: April 2, 1996
    Assignee: Advantek, Inc.
    Inventor: Nathan R. Smith
  • Patent number: D366066
    Type: Grant
    Filed: August 26, 1994
    Date of Patent: January 9, 1996
    Assignee: Callas Enterprises
    Inventor: Mike T. Callas
  • Patent number: D367597
    Type: Grant
    Filed: December 25, 1994
    Date of Patent: March 5, 1996
    Inventor: Orville H. Westcott
  • Patent number: D368419
    Type: Grant
    Filed: January 13, 1995
    Date of Patent: April 2, 1996
    Inventor: Edward W. Dorma
  • Patent number: D370171
    Type: Grant
    Filed: December 27, 1994
    Date of Patent: May 28, 1996
    Inventor: Jeffrey T. Emerson
  • Patent number: D370246
    Type: Grant
    Filed: October 4, 1993
    Date of Patent: May 28, 1996
    Inventor: Gregory G. Johnson
  • Patent number: D371797
    Type: Grant
    Filed: May 23, 1994
    Date of Patent: July 16, 1996
    Assignee: May-Wes Manufacturing, Inc.
    Inventor: Mark W. Bruns
  • Patent number: D372146
    Type: Grant
    Filed: February 19, 1991
    Date of Patent: July 30, 1996
    Assignee: J. B. Goodhouse, Inc.
    Inventor: Roy M. Svee
  • Patent number: D372939
    Type: Grant
    Filed: June 12, 1995
    Date of Patent: August 20, 1996
    Inventor: Mike T. Callas
  • Patent number: D372990
    Type: Grant
    Filed: May 26, 1995
    Date of Patent: August 20, 1996
    Inventor: Larry L. Sweeney