Patents Represented by Attorney Douglas L. Carlsen
  • Patent number: 4279555
    Abstract: A machine for stacking rectangular sheets of relatively rigid material such as panels, counters, doors, plastic sheets, or the like which has an input conveyor for receiving the panels as they are placed horizontally thereon, an elevator conveyor pivotally connected to the discharge end of the input conveyor on a horizontal axis for raising and lowering movement, a discharge conveyor at the outer end of the elevator conveyor, a conveyor drive motor for driving the conveyors, elevator motor for moving the elevator conveyor about its pivot axis, and a switch on the discharge conveyor for activating the elevator motor as a panel is discharged therefrom to raise the elevator conveyor a selected distance prior to discharge of the next panel. The machine also includes a mechanism on the input conveyor for straightening any panel disposed thereon prior to its movement onto the elevator conveyor.
    Type: Grant
    Filed: December 29, 1978
    Date of Patent: July 21, 1981
    Inventor: Edmund W. F. Rydell
  • Patent number: 4272747
    Abstract: In a solenoid switch, a cylindrical externally threaded housing having an integrally formed bottom wall with an axially centered aperture, a solenoid coil disposed axially within the housing with upwardly extending leads, a plunger within the coil having an actuator pin extending downwardly through the aperture, a cover of plastic material on the housing embedding a pair of connectible terminals each of which is connected to one of said leads, whereby as electrical energy is transmitted to the terminals the coil will be energized to move the plunger axially so that the pin may perform a desired work outside of the housing.
    Type: Grant
    Filed: July 25, 1979
    Date of Patent: June 9, 1981
    Inventor: Patrick G. Bauer
  • Patent number: 4258630
    Abstract: A portable turntable apparatus for use in microwave ovens which is used as a supporting base for a container of food which is cooked within the oven and adapted to gradually rotate the same, the apparatus including a motor including metallic materials which motor is mounted in and enclosed by a metal housing and an outer enclosure comprising a cover and base of non-metallic material to prohibit electrical arcing between the motor and the oven walls. The housing is provided with smooth outer surfaces and a minimal sized aperture opening to allow a driving connection between the motor and the enclosure cover.
    Type: Grant
    Filed: July 25, 1978
    Date of Patent: March 31, 1981
    Assignee: Northland Aluminum Products, Inc.
    Inventors: Jorgen A. Jorgensen, Donald W. Nygren
  • Patent number: 4228818
    Abstract: A crossover relief valve for use in a hydraulic circuit connected to two single acting cylinders such as used to provide rearward force against opposite ends of a plow blade wherein excessive pressure against one end of the blade will allow fluid to flow from one cylinder to the other, the valve being of the sliding poppet and port type wherein the poppet has surface areas exposed to the pressure line to each cylinder of such a size as to open the valve for flow between cylinders when excessive pressure is applied to either and wherein when pressure is applied from both pressure lines against said surface areas the poppet will move a sufficient distance to open a port for return of hydraulic fluid to a reservoir.
    Type: Grant
    Filed: May 1, 1978
    Date of Patent: October 21, 1980
    Assignee: Victor Fluid Power
    Inventor: David J. Nelson
  • Patent number: 4218036
    Abstract: A bracket for mounting a rear view mirror on a vehicle and which includes two interpivoted bracket frame members which have facing series of radially extending teeth or the like arranged in spring tensioned yieldable but interlocking relationship, the positioning of a washer between the members having an interock relation with each such series of teeth to transmit the interlock from teeth extending in one radial direction on one frame member to teeth extending in a different radial direction on the other member.
    Type: Grant
    Filed: August 28, 1978
    Date of Patent: August 19, 1980
    Assignee: Re-Trac Corporation
    Inventor: Clarence O. Pitkanen
  • Patent number: 4203245
    Abstract: A packet for holding a fishing lure which lure is mounted on the line of a fishing rod, the packet comprising a sheet of flexible material having a thickness adapted to withstand unforced fishhook penetration. A clip adapted to engage and be frictionally secured on a fishing rod is permanently mounted along one edge of the sheet and the clip and the sheet both have interengageable and interconnectible means mounted thereon whereby the sheet may be wrapped around a lure disposed beside the clip and connected to the clip to secure the lure to the rod when the rod is not in use.
    Type: Grant
    Filed: June 19, 1978
    Date of Patent: May 20, 1980
    Inventor: Jay B. Peterson
  • Patent number: 4167238
    Abstract: A tobacco pouch having a built in framework including a discharge tube extending through one side of the pouch and a spiral type ejector mechanism having one end loosely disposed in the tube and its other end journaled for rotation in the framework portion opposite from the tube and a handle disposed outside of the pouch whereby as the handle is operated the spiral mechanism will rotate to move tobacco in the pouch out through the discharge tube into the bowl of a smoking pipe.
    Type: Grant
    Filed: January 9, 1978
    Date of Patent: September 11, 1979
    Inventor: Philip A. Koski
  • Patent number: 4134566
    Abstract: A bracket for mounting a control box for a submersible pump on the pump pressure tank comprising an upright support bar having a foot at its lower end adapted to be secured to the top of the tank, a cross bar pivoted to a medial point on the support bar, the cross bar having longitudinally extending slots on either side of the pivot, and the support bar having a longitudinally extending slot above the pivot.
    Type: Grant
    Filed: July 15, 1977
    Date of Patent: January 16, 1979
    Inventor: Gerald L. Spitzack
  • Patent number: 4120236
    Abstract: A popcorn popper wherein the corn is popped in a dry condition in a drum rotating on a horizontal axis. An electrical heater is attached to the periphery of the drum. The drum has inner and outer cylinder walls with a popping chamber between the walls and discharge chamber within the inner wall. A separator gate guides corn after it is popped from the popping chamber into the discharge chamber. A discharge chute extends outwardly from the discharge chamber and a carrier blade within the inner wall moves the popped corn to a position to be dumped into the discharge chute. There is also a fan for blowing the popped corn from the discharge chute upwardly through a spout into a container and the fan and drum are driven by the same motor.
    Type: Grant
    Filed: October 25, 1977
    Date of Patent: October 17, 1978
    Assignee: The Popper's Choice Company
    Inventor: James K. Blomberg
  • Patent number: 4115049
    Abstract: A form for molding building wall panels of a concrete material, wherein the form has a rectangular shallow box shape for receiving and enclosing the material while it hardens, the form having a plurality of elongated inserts extending broadwise therethrough in parallelism and on a horizontal plane to form a break line in the panel, and prestressed tension rods or post tensioned cable means extending through the form to be embedded in the material at at least one side of the break line to cause the panel to split along the break line when the rods are removed after the material has hardened.
    Type: Grant
    Filed: June 2, 1977
    Date of Patent: September 19, 1978
    Inventor: Donald G. Grubb
  • Patent number: 4013230
    Abstract: A shower head having a main body with a passageway extending therethrough and adapted to be connected to the end of a water supply pipe, an annular skirt attached to the outlet end of the body and a multi-apertured disk mounted on the body for breaking up the water flowing through the passageway into a series of high velocity jet sprays, said apertures so positioned as to direct the jet sprays downwardly in a relatively diverging pattern into engagement with the lower edge of the annular skirt to diffuse the sprays as they leave the shower head.
    Type: Grant
    Filed: November 10, 1975
    Date of Patent: March 22, 1977
    Inventor: John T. Gondek
  • Patent number: 3995361
    Abstract: A forcing press for simultaneously pressing members onto opposite ends of a central member, such as railroad wheels onto an axle, wherein the press is prestressed by exerting balancing force against opposite ends of the axle prior to pressing the wheels onto the ends of the axle and including mechanism for simultaneously pressing the wheels onto the axle.
    Type: Grant
    Filed: October 20, 1975
    Date of Patent: December 7, 1976
    Assignee: Victor Fluid Power
    Inventors: Dennis M. Scheller, Lanny R. Sanner, Granville Woolman
  • Patent number: 3986294
    Abstract: A miniature toy fork lift vehicle having a body supported on ground wheels, an upright frame mounted on the front portion of the body and having a pair of upright parallel guide rails spaced transversely of the vehicle, a lift fork including a carrier mounted on the guide rails for vertical sliding movement, an upright screw member disposed between the guide rails and journaled in the upright frame and having a threaded portion in threaded engagement with the carrier to raise and lower the lift fork as the screw is turned. The guide rails form a roll cage over an operator's station. The lift fork may be pivoted to an inactive position to reduce the vehicle length for packaging or storage.
    Type: Grant
    Filed: January 15, 1975
    Date of Patent: October 19, 1976
    Assignee: Tonka Corporation
    Inventors: Lee J. Pfeilsticker, Vernon R. Wamsley, Thomas W. Good
  • Patent number: 3978616
    Abstract: A door for closing an opening through a pet confining wall in a building, kennel, pen or the like, said door having a peripheral frame for mounting in the wall opening, a door member having its upper edge portion hinged to the frame on a horizontal axis for swinging movement of the door in either direction from a vertical closed position within the frame, and a spring tensioned slide acting between the frame and a cam on the upper edge of the door to yieldably retain the door in closed position.
    Type: Grant
    Filed: June 4, 1975
    Date of Patent: September 7, 1976
    Assignee: North States Industries, Inc.
    Inventor: Everett C. Pennock
  • Patent number: 3962820
    Abstract: A connection for use in connecting a rigid sheet material part in a toy vehicle with a relatively more resilient part wherein the rigid part is provided with a round aperture and the resilient part has an expansion collar thereon which is somewhat greater in diameter than the aperture but which can be forced therethrough in a contracted condition, and a third member which is inserted axially into the collar to retain it in an expanded condition to prohibit its removal from the aperture.
    Type: Grant
    Filed: January 6, 1975
    Date of Patent: June 15, 1976
    Assignee: Tonka Corporation
    Inventors: Thomas W. Good, Bernard J. Dehner
  • Patent number: D242990
    Type: Grant
    Filed: August 15, 1975
    Date of Patent: January 11, 1977
    Assignee: Earth Clocks Incorporated
    Inventor: Donald H. Jorgenson
  • Patent number: D243344
    Type: Grant
    Filed: June 10, 1975
    Date of Patent: February 8, 1977
    Assignee: Introl Corporation
    Inventor: Peter B. Allard
  • Patent number: D243546
    Type: Grant
    Filed: May 5, 1975
    Date of Patent: March 1, 1977
    Assignee: Tonka Corporation
    Inventor: Vernon A. Peterson
  • Patent number: D245764
    Type: Grant
    Filed: November 5, 1975
    Date of Patent: September 13, 1977
    Inventors: Donald H. Jorgenson, Larry A. Knigge
  • Patent number: D246541
    Type: Grant
    Filed: April 7, 1976
    Date of Patent: November 29, 1977
    Inventor: David W. Myers