Patents Represented by Law Firm Burd, Braddock & Bartz
  • Patent number: 4092888
    Abstract: A punching device for use in a fixed frame adapted to support punch means in alignment with a ram. An assembly of a punch, a guide and stripper plate and a stripping spring is removable as a unit. The assembly of this invention is characterized by means by which the assembly is retained together when removed from the frame of the punching machine. The assembly includes a quick release guide, a clip ring spring support retainer and a replaceable stripper plate.
    Type: Grant
    Filed: July 1, 1977
    Date of Patent: June 6, 1978
    Assignee: Wilson Tool Company
    Inventor: Kenneth J. Wilson
  • Patent number: 4093129
    Abstract: A machine to comminute refuse includes a drum-like rotor on a rotor axle inside a housing. The rotor includes two face-to-face outwardly diverging part-conical discs each supporting a plurality of shear plates which have spaced-apart teeth along outer edges thereof. The teeth of each shear plate lie in a plane which includes the axis of said rotor and extends radially outwardly therefrom. An anvil in said housing also has spaced-apart teeth positioned to be in intermeshing relation to the shear plate teeth as the shear plates rotate with the rotor. Rubbish to be comminuted is fed into the machine at position directly above the axle of the rotor and is carried by the shear plates and shear teeth into contact with the anvil and anvil teeth, shearing off the portions of the refuse aligned with the shear plate teeth and carrying this refuse through to position under the rotor where it is discharged vertically from the machine.
    Type: Grant
    Filed: January 19, 1977
    Date of Patent: June 6, 1978
    Assignee: Tire Recycling of Minnesota, Inc.
    Inventor: Henry J. Polansky
  • Patent number: 4093333
    Abstract: An adapter for a conventional threaded electric light socket or the like having an external right hand threaded base for threading into a conventional socket. A locking tab on the base permits the adapter to be threaded into the socket and jams the threads of the socket to prevent its removal. The adapter has a cavity with an internal left hand thread for receiving an unconventional bulb or the like with a mating left hand threaded base. In one form, the adapter has a releasable lock structure for holding the adapter in the socket. A removal tool is used to release the lock structure to permit the adapter to be turned into and out of the socket.
    Type: Grant
    Filed: December 15, 1975
    Date of Patent: June 6, 1978
    Inventor: David A. Tjornhom, Sr.
  • Patent number: 4091521
    Abstract: A resilient ring-shape rod seal is to be installed in a rod seal groove in a cylinder in position to seal against a rod as it moves longitudinally with respect to the cylinder. The inside diameter of the ring-shape rod seal is the same as the nominal outside diameter of the rod. The rod seal installation tool of the invention includes three mutually parallel pins, pivotally mounted with respect to each other and designed to fit down over the ring-shape rod seal to have two outside pins situated inside of the rod seal ring and a center pin situated outside of the rod seal ring. Means are provided to pivot the outside pins out around the center pin and then toward each other to fold the rod seal in a generally C-shape configuration whereby the rod seal and tool can be inserted into the cylinder to align the rod seal with the cylinder rod seal groove. The pins are released to allow the seal to expand toward its nominal ring shape with at least part of the seal in the groove.
    Type: Grant
    Filed: June 10, 1977
    Date of Patent: May 30, 1978
    Inventor: Edwin S. Dygert
  • Patent number: 4089448
    Abstract: A rack for mounting on the rear deck of an automobile for carrying lightweight recreational vehicles, namely bicycles or skis. The rack is characterized by a frame pivoted in a pair of brackets clamped to the vehicle bumper, the frame being movable from an upright loading position to a lowered traveling position. The rack when used for carrying bicycles incorporates the lowered wind resistance of trunk mounted racks with the ease of loading of bumper mounted racks while avoiding the disadvantages of these types of carrier.
    Type: Grant
    Filed: February 26, 1976
    Date of Patent: May 16, 1978
    Inventor: John L. Traeger
  • Patent number: 4089127
    Abstract: A hand operated apparatus used to remove snow from the roof of a structure, as a house. The apparatus has a U-shaped chute with open front and rear ends. Upwardly inclined lips located across the bottom of the front and rear of the chute prevent the chute from digging into the roof. An elongated flexible sheet attached to the rear of the chute carries snow from the chute to the edge of the roof. A cord secured to the flexible sheet is used to maintain the position of the flexible sheet on the roof. An elongated handle pivoted to a side of the chute is used to move the chute up and down the roof.
    Type: Grant
    Filed: March 28, 1977
    Date of Patent: May 16, 1978
    Inventor: William R. Maijala
  • Patent number: 4089537
    Abstract: A splash shield or flap structure adapted to be attached to a portion of a wheeled vehicle to intercept and deflect liquid and foreign particles, as water and mud. The shield is a flat laminated sheet member having a linear side, a convex curved side and a linear bottom edge. The sheet member has a flat, flexible base. A transparent plastic sheet material covers one surface of the base. An adhesive having colored metal particles suspended therein secures the transparent plastic sheet material to the base so that the colored metal particles are visible through the transparent plastic sheet material.
    Type: Grant
    Filed: June 4, 1976
    Date of Patent: May 16, 1978
    Inventor: James J. Pralutsky
  • Patent number: 4086265
    Abstract: A method of preparing derivatives of aromatic compounds including the catechol function ##STR1## by replacement of one of the hydroxyls by mercaptan ##STR2## Cathechol or a multi-ring compound (naphthyl-, anthryl-, phenanthryl-, etc.
    Type: Grant
    Filed: December 1, 1976
    Date of Patent: April 25, 1978
    Assignee: The Regents of the University of Minnesota
    Inventors: Raymond M. Dodson, Joseph B. Hanson
  • Patent number: 4082033
    Abstract: A compact table-top automatic doughnut making machine for use at lunch counters, in-store bakery counters, small bakeries, and the like, where freshly cooked doughnuts are sold in moderately large volume. The machine is particularly adaptable to varying volume requirements, being adjustable to produce from about 5 dozen to 100 dozen doughnuts per hour. The machine includes a generally rectangular compact tank for containing the cooking fat or oil which is heated by automatic thermostatically controlled means. A removable insert in the tanks defines a circuitous path along which the doughnuts flow in the course of being cooked. A removable dough extruding unit is mounted over one end of the tank to form and drop rings of raw dough into the oil. The dough is moved along the surface of the cooking oil by a propulsion pump inducing a circulating flow of oil as the doughnut is first cooked on one side, turned over automatically, cooked on the other side and discharged from the machine.
    Type: Grant
    Filed: October 4, 1976
    Date of Patent: April 4, 1978
    Inventor: Amos M. Fester
  • Patent number: 4081871
    Abstract: An electrician's tool for stripping outer insulating sheathing from multiple conductor electrical cable and for stripping insulation from individually insulated conductors. The tool is characterized by a first flat blade for removing sheathing from one side of a multiple conductor cable to expose the individual conductors, without damaging the individual insulation of those conductors, and a longitudinally retractable knife blade for cutting off the sheathing folded back and separated from the opposite side of the conductors. The tool also preferably has separate blade means for stripping insulation from the ends of individually insulated conductors. The tool is of simple compact construction comprising a pair of arms pivotally connected at one end and carrying the several blade means.
    Type: Grant
    Filed: April 4, 1978
    Date of Patent: April 4, 1978
    Inventor: Everett F. Knuth
  • Patent number: 4082155
    Abstract: A four wheeled undercarriage is mounted to a snowmobile body having a tunnel from which the endless track drive assembly has been removed. The ski-mounting brackets of the snowmobile support the front end of the snowmobile body on a front axle bolster and two steerable wheels. Steering is accomplished through one of these brackets. The rear end of the snowmobile body is supported by two suspension spring assemblies on a triangular rear wheel support frame and two rear wheels. A transversely extending undercarriage positioning bar installed in a forward portion of the snowmobile tunnel positions the forward end of the triangular support frame and adjustably positions the attitude of the front axle bolster to control the camber of the steerable wheels. A stabilizer bar between the rear support frame and the snowmobile body allows vertical movement but restricts lateral movement of the snowmobile body with respect to the rear wheels.
    Type: Grant
    Filed: February 3, 1977
    Date of Patent: April 4, 1978
    Assignees: Wayne Parrow, Harold Parrow
    Inventor: Clyde B. McCartney
  • Patent number: 4082613
    Abstract: A process for the production of insulin using fungal cells. Human insulin producing cells are extracted to obtain the functional genome (the genetic material which determines the capacity of the cells to produce insulin) which is used to transform fungal cells, making them capable of producing insulin. The insulin has been extracted and identified by radioimmune assay and by bioassay. The same process can also be applied to produce animal insulins using specific specie transforming functional insulinogenic genomes. A process for serial secondary culture of insulin producing cells is disclosed. The significance of the invention is related to the great need to produce human insulin in large amounts. Human insulin has distinct biological and clinical advantages when compared with commercially available animal insulins now used for the treatment of diabetes mellitus in man.
    Type: Grant
    Filed: April 23, 1976
    Date of Patent: April 4, 1978
    Assignee: The Regents of the University of Minnesota
    Inventors: Mandayam J. Thirumalachar, Mandayam J. Narasimhan, John A. Anderson
  • Patent number: 4079530
    Abstract: An identification marker as a garden marker to indicate crop rows. The marker has an elastic backing including a plate having a front first label support surface, an elongated stake mounted to the bottom of the plate and depending downwardly therefrom, and a supporting rib integral with back surfaces of the plate and stake and extending rearwardly therefrom. A frame as adapted for selected face-to-face contact with the plate. The frame includes an inner frame portion which defines a display opening, and an outer frame portion surrounding the inner frame portion. An outer frame portion back surface abuts the plate front surface during said selected contact, while an inner frame portion back surface, parallel to and forward with respect to the outer frame back surface, comprises a second label support surface. A retaining wall is between the inner and outer frame back surfaces. The marker further includes means for maintaining said selected face-to-face contact.
    Type: Grant
    Filed: October 1, 1976
    Date of Patent: March 21, 1978
    Inventors: Marie E. Atherton, Jesse J. Atherton
  • Patent number: 4080184
    Abstract: An intake air system for an internal combustion engine having an upright stack mounted on vehicle structure, as a hood, with a stack connecting assembly. An air precleaner is mounted on the upper end of the stack. The lower end of the stack is connected to tubular members which leads to the air cleaner of the engine. The mount structure for the stack has an adjustable clamp using a split ring to selectively hold the stack in a predetermined position on the vehicle.
    Type: Grant
    Filed: August 5, 1976
    Date of Patent: March 21, 1978
    Inventor: Ross K. Petersen
  • Patent number: 4079807
    Abstract: A steering mechanism particularly suited for vehicles of the type having a variable width track. The steering mechanism is flexible enabling it to automatically extend and retract laterally along with the track of the wheels of the vehicle. The mechanism acts on steering arms of the steerable wheels of a vehicle to simulate a conventional tie rod type of steering geometry. During turning, the inner wheel turns more than the outer wheel to minimize tire slippage or scrub. A flexible steering linkage assembly is connected between the steering arm ends of the pair of steerable wheels to maintain controlled spatial relationship between them which results in a simulation of tie rod steering geometry.
    Type: Grant
    Filed: May 13, 1976
    Date of Patent: March 21, 1978
    Assignee: American Hoist & Derrick Company
    Inventors: John T. Hornagold, Gary H. Beckley, Ram N. Rathi
  • Patent number: 4074958
    Abstract: A machine having two extruders operable to move hot plastic materials of different colors through passages of a die. The die has a merging chamber where the plastic materials from the two extruders are fused in side-by-side positions and an outlet opening through which the fused materials are discharged to form a two-colored ribbon product. A rotatable mandrel located in a water tank winds the ribbon product into a helical coil spring shape. A separator plate surrounding the mandrel guides the ribbon in a helical direction as the ribbon is wound around the mandrel. The ribbon product is cooled and set as it is wound around the mandrel.
    Type: Grant
    Filed: October 8, 1976
    Date of Patent: February 21, 1978
    Inventor: Lester V. Molenaar
  • Patent number: 4074477
    Abstract: Building structures formed from repeating alternating mirror-image forms of basic mathematically determinate structural modules. The structure is applicable to the construction of buildings without internal supporting pillars or other structural supports which form interior obstructions. Such structures are especially adapted for such uses as auditoriums, concert halls, exhibition halls, field houses, storage buildings, stadium covers, etc. The structures are readily adapted for factory fabrication and partial assembly, shipment as partially assembled components and final on-site assembly. The structural modules are foldable. Structures may be assembled from modules in folded or collapsed condition at or near ground level and then erected by unfolding into structures of substantial length, width and height. The completed structures may take the form of a surface of revolution, such as a hemisphere, toroid, catenoid, etc.
    Type: Grant
    Filed: September 17, 1973
    Date of Patent: February 21, 1978
    Inventor: John F. Runyon
  • Patent number: 4070810
    Abstract: A combine header has a transverse platform carrying a cutting apparatus. An elongated auger having reverse spiral flights move cut material along the platform to a feed housing. The cutting apparatus has a base carrying forwardly projected guards located on 2-inch longitudinal centers. An endless chain carrying knife blades is trained about sprockets located adjacent opposite ends of the base. The knife blades are located on three-inch longitudinal centers. The forward run of the chain moves through a passage in a housing secured to the base behind the guards. The knife blades move over the wear plates attached to the guards to cut material located between the guards. A removable inverted U-shaped insert is located in the passage providing a bearing surface for the front run of the chain and a hold-down lip bearing on the knife blades to hold the blades in close relationship with the wear plates.
    Type: Grant
    Filed: August 13, 1976
    Date of Patent: January 31, 1978
    Inventor: Henry Donald Brakke
  • Patent number: 4066800
    Abstract: A dairy based cheese food is prepared by a process involving heating milk to pasteurize and denature whey proteins, acidifying the milk to form curd and whey, separating the curd from the whey, neutralizing the curd by adding a base, mixing an acid with the neutralized curd to reacidify, mixing an additive with the curd, manipulating the curd such as by extrusion, and packaging the curd.
    Type: Grant
    Filed: November 30, 1973
    Date of Patent: January 3, 1978
    Assignee: The Regents of the University of Minnesota
    Inventors: John R. Rosenau, John C. Anderson
  • Patent number: RE29618
    Abstract: A method for suppressing cardiac ventricular fibrillation and cardiac arrhythmias in animals, both human and otherwise, by administration of ortho-bromo benzyl ethyldimethylammonium p-toluene-sulfonate (bretylium tosylate). The drug may be administered prophylactically in the prevention of or in the treatment of ventricular fibrillation or cardiac arrhythmias.
    Type: Grant
    Filed: March 28, 1977
    Date of Patent: April 25, 1978
    Assignee: The Regents of the University of Minnesota
    Inventor: Marvin B. Bacaner