Patents Represented by Law Firm Klarquist, Sparkman, Campbell, Leigh, Hall & Whinston
  • Patent number: 4291837
    Abstract: An irrigation line move operates fully automatically for twenty-four hours and includes a prime mover carriage carrying a gasoline engine which drives a pipe of a wheel line through a hydraulic drive system, and the wheel pipe, through a first planetary transmission, drives a shaft paralleling the pipe. The shaft drives a slave carriage through a second planetary transmission. The engine is started under the control of a circuit having a stepping switch which sequentially shuts off water to the line, allows the line to drain, starts the engine to move the line, stops the engine, and turns on the water to the pipe. The above cycle is repeated after a given time of irrigation. The first planetary transmission includes a chain driving a plurality of planetary sprockets.
    Type: Grant
    Filed: November 13, 1979
    Date of Patent: September 29, 1981
    Inventor: Lyndle G. Gheen
  • Patent number: 4290591
    Abstract: A hand tool is described for holding the front of an electrical outlet box a predetermined distance outwardly beyond the front surface of a stud or other structural member as the box is installed so that when wallboard or other finish material is mounted to the stud, the front of the box is flush with the wallboard. The tool includes jaws for gripping a side panel of the outlet box, indicia for indicating the depth which the side panel is inserted into the jaws, and a spacing member which engages the stud and establishes the predetermined distance between the front surface of the stud and the front of the electrical outlet box. The tool also may include an elevation establishing device for spacing the electrical outlet box a desired distance above the floor. In one embodiment, the indicia comprise pins which limit the depth to which the side panel can be inserted into the jaws. Also, in this embodiment the spacing member comprises first and second spacing bars detachably mounted to the pins.
    Type: Grant
    Filed: September 15, 1980
    Date of Patent: September 22, 1981
    Inventor: Sylvester J. Smith
  • Patent number: 4281721
    Abstract: A mounting assembly for supporting a scraping tool (e.g. a bulldozer blade) forward of a vehicle (e.g. a bulldozer) and enabling independent angling and tilting of the tool is disclosed. The assembly includes a U-shaped mainframe, a swingframe, means for pivotally connecting the swingframe to the mainframe, means for pivotally connecting the tool to the swingframe, tilt actuator means interconnecting the mainframe and the scraping tool for rotating the scraping tool in relation to the swingframe about a tilting axis of rotation, and angle actuator means interconnecting the mainframe and the swingframe for rotating the swingframe and scraping tool in relation to the mainframe about an angling axis of rotation.
    Type: Grant
    Filed: December 12, 1978
    Date of Patent: August 4, 1981
    Assignee: Beales Steel Products Ltd.
    Inventor: John H. Beales
  • Patent number: 4277223
    Abstract: A double-case, multi-stage, centrifugal pump having a plurality of impellers mounted on a common shaft at axially spaced pump stages. The first pump stage is housed within a unitary forward case section of a three-section inner case assembly. Subsequent stages are housed within two rearward case sections disposed in axial joint-forming relationship with each other and radial joint-forming relationship with the forward case section. The inner case assembly is supported within an outer case assembly which provides a suction chamber surrounding the forward case section and a discharge chamber surrounding the rearward case sections, the inner and outer case assemblies being constructed in such manner that the pressure in the discharge chamber sealably forces the inner case sections together during operation of the pump.
    Type: Grant
    Filed: November 29, 1979
    Date of Patent: July 7, 1981
    Assignee: Guy F. Atkinson Company
    Inventor: Richard M. Nelson
  • Patent number: 4273064
    Abstract: A hatch cover for closing and sealing a hatch opening has a latching mechanism at one side of the cover which includes a rotatable hub and plural latching arms extending in different directions from the hub towards a rim of the opening. Rotation of the hub in one direction causes the latching arms to engage the rim and tightly latch the cover to the rim while rotation of the hub in the opposite direction retracts the latching arms and frees them from the rim to enable removal of the cover from the opening. A shaft extends through the cover and is axially slidable and rotatable relative to it. The shaft is axially slidable relative to the hub and continuously engages it so that rotation of the shaft correspondingly rotates the hub. A handle fixed to the upper end of the shaft rotates the hub to activate the arms.
    Type: Grant
    Filed: February 1, 1979
    Date of Patent: June 16, 1981
    Inventor: Robert W. Sutton
  • Patent number: 4272984
    Abstract: For sealing a pipeline at selective locations in order to perform leak tests, a pipeline packer assembly capable of internal travel within the pipeline can be moved to and stopped at selected locations and the packer inflated against the interior pipe walls to prevent further movement of the unit, and to provide a seal so that the pipeline may be subjected to internal high pressures to detect leaks. According to the invention, a control device for such unit comprises a gamma ray detector and signal processor receiving the electrical analogue signal from the gamma ray detector. An energizing signal from the signal processor actuates a stepping switch which provides "inflate" and "deflate" energization of the packer, and is kept in "off" condition while the packer is inoperative as in transit within the pipeline. A radiation source on the surface or selectively inserted into a bore hole near the pipeline provides a stimulus for the gamma ray detector which controls the operation of the stepping switch.
    Type: Grant
    Filed: May 18, 1979
    Date of Patent: June 16, 1981
    Assignee: Interprovincial Steel and Pipe Corporation, Ltd.
    Inventor: David A. Bell
  • Patent number: 4270490
    Abstract: A pair of animal feed bowls, one of which is for additionally acting as a cover for the other feed bowl is disclosed. Cooperating apparatus is provided on the two bowls for releasably securing one in an inverted position as a cover over the other. In one embodiment, a flexible peripheral side wall of the covering feed bowl is peripherally corrugated.
    Type: Grant
    Filed: March 5, 1979
    Date of Patent: June 2, 1981
    Inventor: Larry F. Kopp
  • Patent number: 4268051
    Abstract: The specification discloses a roller insert which can be welded into a crossframe of a log trailer to provide low friction to a pivoted log bunk. Each insert includes a frame welded into a cutout portion in an end portion of the crossframe. Rollers are mounted on axles removably secured in the frame by keeper bars.
    Type: Grant
    Filed: January 20, 1978
    Date of Patent: May 19, 1981
    Assignee: Enoch Skirvin & Sons, Inc.
    Inventors: Paul G. Skirvin, Walter W. Skirvin, Carl L. Skirvin
  • Patent number: 4262730
    Abstract: The specification discloses a strike off apparatus for leveling and compacting mounds of sand extending above the upper edges of open-top mold boxes of varying heights carried in succession along a pathway. A pair of pivotally supported rollers extend across the pathway. A sensor determines the height of a sand mound in a mold box before it reaches the rollers. An elevating mechanism responsive to the sensor adjusts the rollers to a height so that they level and compact the sand mound as the mold box is carried thereunder. A control system including electrical and hydraulic circuits is provided for automatically controlling the cyclical operation of the apparatus.
    Type: Grant
    Filed: January 21, 1980
    Date of Patent: April 21, 1981
    Assignee: Dependable-Fordath, Inc.
    Inventor: Earl W. Powers
  • Patent number: 4262826
    Abstract: An attachment for a barrel includes a plate and a fastening mechanism having a locking arm and lever for releasably securing the plate to the rim of a barrel. When secured in position, an auxiliary bunghole through the plate is aligned with the bunghole of the barrel. A threaded pump mounting projects outwardly from the plate and away from the barrel. A seal prevents leakage of liquid from the barrel between the plate and barrel bunghole.
    Type: Grant
    Filed: December 28, 1979
    Date of Patent: April 21, 1981
    Inventor: Eddie P. Green
  • Patent number: 4262928
    Abstract: A club container is removably mounted on a cart and has a bottom notch receiving a crossrod of the cart and an upper, releasable latch. The club container has a pleated, flexible plastic irons separator and has long tubular sockets receiving shafts of the woods. The cart has a frame of two U-shaped tubes secured together by rivets which also pivot a U-shaped wheel suspension tube carrying pivot pins on which are pivoted circle-carrying arms biased by torsion spring rods secured to the tube. To form a folding linkage, a pair of rods having bent-over, lower end portions trapped in the wheel suspension tube are held together with bent-over, upper end portions trapped in a block secured to a handle. Two pairs of legs pivotally secured to a seat and having ends hooked into the frame of the cart to mount the seat, along with a pair of braces hooked into the frame and slidable along one of the pairs of rods, for overcenter movement between a seating position and a folded position.
    Type: Grant
    Filed: June 25, 1979
    Date of Patent: April 21, 1981
    Assignee: Jarman Company
    Inventor: Ammon M. Leitzel
  • Patent number: 4259926
    Abstract: A method and apparatus for the field rearing of planktonic larvae of marine animals involving suspending a field culture enclosure in oceanic tidal waters, stocking the enclosure with larvae of a preselected species of marine animal, permitting the enclosure to orient in response to the tidal flow of water, screening out larger plankton from entry into the enclosure and filtering water leaving the enclosure to impede the escape of the larvae and food plankton. The culture enclosure is suspended from floatation means and is equipped with a drop-rudder supported horizontally outwardly and spaced form the enclosure side The entry port has a plurality of deflection vanes to direct incoming water towards the enclosure periphery so that a substantially circular flow of water within the enclosure is achieved. By withdrawing water from the enclosure bottom a down-welling combines with the circular flow to cause food plankton and larvae to accumulate near the center and top of the enclosure.
    Type: Grant
    Filed: January 17, 1980
    Date of Patent: April 7, 1981
    Inventor: Jeffrey B. Marliave
  • Patent number: 4255877
    Abstract: An athletic shoe is described having an external heel counter member made of a resilient material, such as rubber or other elastomer for greater stability and comfort. The external heel counter is bonded to the outer surface of both sides of the heel portion of the shoe upper and extends around the heel. A multi-layered shoe sole is provided including a heel wedge layer or other raised heel portion for raising the heel of the foot above the bottom surface of the toes. The shoe sole also employs a midsole layer which extends the entire length of the shoe. In one embodiment the bottom edge of the external heel counter member surrounds the rear portion of the midsole layer and is bonded to the top of the heel wedge layer. In another embodiment the bottom edge of the heel counter member is turned under the heel and is bonded between the shoe upper and the midsole layer.
    Type: Grant
    Filed: September 25, 1978
    Date of Patent: March 17, 1981
    Assignee: BRS, Inc.
    Inventor: William J. Bowerman
  • Patent number: 4255876
    Abstract: An athletic shoe is described including a shoe upper having a toe section and a main body section joined together and to a sole portion. Preferably the toe section extends forwardly of the metatarsophalangeal joints and is of a stretchable material to permit flexing of toes within the shoe, while the main body portion is of a nonstretchable material to restrict pronation of the rest of the foot. When the shoe is laced, first and second external reinforcing strips on the medial side of the upper, respectively exert pressure on the forward and rearward sides of the ball of the foot to restrict its motion. A third such strip on the other side of such upper limits the motion of the fifth metatarsophalangeal joint and urges the ball of the foot between the first and second strips. The first and third strips also join the toe and main body sections together without these sections overlapping.
    Type: Grant
    Filed: May 31, 1979
    Date of Patent: March 17, 1981
    Assignee: BRS, Inc.
    Inventor: Jeffrey O. Johnson
  • Patent number: 4255867
    Abstract: A calligrapher's ruler including two fixed parallel longitudinal members each bearing a different set of graduated indicia is disclosed. A central member is slidably retained between the longitudinal members and mounts an elongated lateral straightedge member, also provided with a scale, so that the straightedge can be moved in a direction parallel to the longitudinal axes of the longitudinal members and maintained at a fixed angle, preferably perpendicular, relative thereto. A pointer on the central slide member is aligned with one of the indicia on the longitudinal members to establish the exact location of the straightedge member along the longitudinal members. A locking device on the central slide member locks the slide member and its connected straightedge in a selected position along the longitudinal members.
    Type: Grant
    Filed: December 7, 1978
    Date of Patent: March 17, 1981
    Inventor: Ronald B. Taylor
  • Patent number: 4255890
    Abstract: A trolling planer for use in downrigger trolling systems has an elongated cylindrical weighted body and a diving plane mounted above the body. The plane is positioned forwardly of the body's center of gravity and at an angle to such body. A bridle for attaching the planer to the downrigger cable and for automatically controlling the diving angle of the planer is positioned atop the plane. A simplified release mechanism for releasably connecting the fishing line to the trolling planer employs a cylindrical female receptacle and a spring clip for insertion into the receptacle.
    Type: Grant
    Filed: May 21, 1979
    Date of Patent: March 17, 1981
    Inventor: Bert A. Smith
  • Patent number: 4253265
    Abstract: An adjustable animal trap is adapted for both trigger and triggerless operation. A pivotal support for the trap's pan frame is movable along a slot located at right angles to the trap jaws for positioning a catch in engaging relation with a trap jaw. A second pivotal support is slidably positionable along the same slot and carries a trigger lever for alternatively engaging the pan frame catch. The pan is also slidable along the pan frame.
    Type: Grant
    Filed: May 7, 1979
    Date of Patent: March 3, 1981
    Inventor: Francis D. Gardner
  • Patent number: 4253271
    Abstract: An apparatus and process for the culture of algae in a liquid medium is disclosed. The medium circulates through an open trough and is exposed to an atmosphere which is temperature regulated. The nutrient content of the liquid medium is regulated to control the chemical composition growth and reproduction characteristics of the cultured algae. Before it is allowed to strike the medium, sunlight is passed through a filter to remove wavelengths which are not photosynthetically active. Heat energy can be recovered from the filter.
    Type: Grant
    Filed: December 28, 1978
    Date of Patent: March 3, 1981
    Assignee: Battelle Memorial Institute
    Inventor: Lawrence P. Raymond
  • Patent number: PP4660
    Abstract: This novel rose variety is a mutation of Faberge, U.S. Plant Pat. No. 2,886, and differs therefrom in its bud color which is of a yellow color and blossoms which are of a greenish white to white color.
    Type: Grant
    Filed: December 17, 1979
    Date of Patent: March 3, 1981
    Assignee: Jackson & Perkins Co.
    Inventor: Keisuke Asaoka
  • Patent number: PP4684
    Abstract: This invention relates to a novel variety of Green Ash Tree, distinguished primarily by its glossy dark green foliage, seedlessness, and hardiness in severe northern climates.
    Type: Grant
    Filed: April 27, 1979
    Date of Patent: April 7, 1981
    Assignee: Jacob J. Driedger
    Inventor: Richard H. Patmore