Patents Represented by Attorney, Agent or Law Firm Olson and Olson
  • Patent number: 4743023
    Abstract: A multi-dimensional ball-type maze puzzle game comprises a plurality of individual, maze containing modules secured together to form a vertical stack, aligned openings being provided at selected points through the modules for interconnecting the interiors of adjacent modules in the stack whereby to permit an object ball to pass from maze level to maze level upon successful completion of the maze associated with the preceding level. Locking clips are provided to secure the modules in closed, operative condition, and to secure adjacent modules together in a vertical stack.
    Type: Grant
    Filed: October 10, 1986
    Date of Patent: May 10, 1988
    Assignee: Collier Products, Inc.
    Inventor: David L. Collier
  • Patent number: 4736691
    Abstract: A housing contains a plurality of vertically spaced shelves movable vertically relative to each other upon activation of a fluid pressure piston-cylinder unit mounted on the housing. Elongated suspension rods depend from the top shelf to support the next two adjacent shelves for relative vertical movement, and each subsequent lower shelf is similarly supported by a shelf above it but separated from it by one intervening shelf. The two top-most shelves also are arranged to be secured together detachably in abutting relationship. The lower end of each suspension rod mounts a rotary disc which supports a pair of upstanding spaced pins arranged in one position of rotary adjustment to abut the underside of a lug extending laterally from the adjacent shelf, and in a second position of rotary adjustment, 90.degree. from the first position, to register with openings in the lug, whereby the associated shelf is lowered from the first position of support a distance substantially equal to the length of the support pins.
    Type: Grant
    Filed: June 10, 1982
    Date of Patent: April 12, 1988
    Assignee: Hull Corporation
    Inventor: John M. Fay
  • Patent number: 4727978
    Abstract: A reciprocating conveyor is formed of at least one group of at least three elongated slats of inverted U-shape spaced apart laterally for longitudinal reciprocation in such manner that all or a majority of slats move simultaneously in a load conveying direction and sequentially in the opposite, retracting direction. A seal member is secured to one side section of each slat and extends laterally therefrom to a position closely adjacent the facing side section of the adjacent slat. The fines of particulate material being conveyed as a load gravitate downward past the free side of the seal member and are deposited in a trough that underlies each pair of facing side sections of adjacent slats. As the adjacent slats move simultaneously in the load conveying direction, the corresponding pair of facing side sections move the fines in the trough in the same direction. This movement is enhanced by providing fines pusher members on the lower ends of the side sections of the slats.
    Type: Grant
    Filed: April 11, 1986
    Date of Patent: March 1, 1988
    Inventor: Olof A. Hallstrom, Jr.
  • Patent number: 4728871
    Abstract: A permanent magnet armature is arranged to be moved initially in spaced proximity to an induction coil connected in an electric circuit across the series arrangement of a source of electric potential and an electronic switch such that when the moving magnetic field of the magnet cuts the coil turns the resulting induced current operates the switch momentarily to connect the source of electric potential across the coil. The resulting current flow through the coil produces a magnetic field which is imposed upon the moving magnet such as to accelerate its movement. An RC time constant circuit is connected across the coil to establish the time period of battery connection across the coil.
    Type: Grant
    Filed: November 1, 1985
    Date of Patent: March 1, 1988
    Inventor: Roger W. Andrews
  • Patent number: 4715088
    Abstract: A vacuum cleaner attachment nozzle especially configured for cleaning confirmed areas beneath and behind major appliances and furniture and the like comprises a narrow and thin, longitudinally elongated, hollow body member, preferably approximately 3 feet in length, and having a vacuum cleaner hose fitting at one end, the opposite end of the body being closed, and suction openings being provided through the lateral side walls of the hollow body member, preferably along the entire length of the working portion of the attachment body, whereby cleaning air flows laterally through the suction openings in a plane substantially parallel to a surface being vacuumed as the attachment nozzle is moved from side to side during vacuuming.
    Type: Grant
    Filed: August 29, 1986
    Date of Patent: December 29, 1987
    Inventor: Gerald A. Haase
  • Patent number: 4715592
    Abstract: A labor support apparatus comprises an essentially U-shaped crossbar assembly mounted on a base member which is arranged to support the intermediate portion of the assembly above a floor or above the surface of a delivery bed. The cross bar assembly is configured to extend upwardly relative to the floor or bed surface, and includes a cushioning pad arranged to comfortably support a person in various positions during childbirth for the purpose of facilitating the birthing process.
    Type: Grant
    Filed: September 22, 1986
    Date of Patent: December 29, 1987
    Inventor: Julie M. Lewis
  • Patent number: 4706534
    Abstract: Rotating cutting element (1) having a row of cutters (5) placed in recesses at the circumference of a disc. Each recess has radially extending V-shaped front and rear edges (4,3), each cutter (5) has V-shaped front and rear edges (6,7) with the apexes facing away from each other. Each cutter (5) is held in the recess against an abutment (9) by means of a wedge (10) which is tensioned by means of a screw (15).
    Type: Grant
    Filed: September 24, 1986
    Date of Patent: November 17, 1987
    Inventor: Cornelis Smolders
  • Patent number: 4691819
    Abstract: A plurality of elongated slats are arranged side by side to form an elongated conveyor, and they are connected to three transverse drive beams in such manner as to form the slats into a plurality of groups of three slats each. Each drive beam is connected to a pair of fluid pressure drive cylinders disposed on opposite sides of the beam so that as one cylinder pushes the beam the other cylinder pulls it. Control valves communicates the cylinders selectively to a source of fluid pressure to reciprocate the slats in a manner to effect moving a load supported thereon in a predetermined direction. The plurality of slats thus form a reciprocating conveyor which moves a load in one direction at a predetermined speed.
    Type: Grant
    Filed: April 9, 1984
    Date of Patent: September 8, 1987
    Inventor: Olof A. Hallstrom, Jr.
  • Patent number: 4682489
    Abstract: The fatigue strength of high stress areas of components of diverse shapes is increased by cold forming by clamping the component resiliently between a base and a clamp member urged resiliently toward the base, and impacting the component area with a complementary shaped reciprocative snap die driven by a percussion piston. Two diverging dies may be driven by the same percussion piston to impact two spaced component areas such as opposed fillets of a crankshaft throw.
    Type: Grant
    Filed: November 12, 1985
    Date of Patent: July 28, 1987
    Inventors: Hans Bauerle, Hansgeorg Peste, Erwin Pohlner
  • Patent number: 4674731
    Abstract: An appliance tilt stand for releasably supporting a washing machine or other appliance in a forwardly tilted, secure position during servicing, comprises a base configured to be disposed on a floor surface and slid underneath an appliance to a point determined by the abutment of a stop member on the base with the inside lower front frame of the appliance. The base also mounts, a spaced distance rearwardly of the stop member, an elongated, pivotal support arm mounting a hook arranged to engage and support the rear bottom frame of an appliance in a secure, elevated position above the base of the stand, the base supporting the front lower edge of the appliance when its rear end is being supported by the pivotal arm.
    Type: Grant
    Filed: January 31, 1986
    Date of Patent: June 23, 1987
    Inventor: Richard J. Stellato
  • Patent number: 4674371
    Abstract: Tool post with tool (9) for metal cutting work of a hollow space, said tool (9) being clamped between a support (3) and a clamp (12) with the support (3) attached to a carrier (1), the support (3) over its entire length as well as the clamp (12) being curved, said curvature (6,22) having a center line parallel to the longitudinal axis of the tool (9) in a plane through the cutting edge (8) of the tool (9) and inside the cutting circle of the tool, preferably carrier (1) and support (3) being designed such that support (3) and clamp (12) can be placed on either side of the carrier (1).
    Type: Grant
    Filed: January 10, 1986
    Date of Patent: June 23, 1987
    Assignee: Komeetstaal Holding B.V.
    Inventor: Cornelis Smolders
  • Patent number: 4669423
    Abstract: Device for packing poultry in a box comprising an endless belt (19) running over a plurality of rolls (14-18) with horizontal axles and provided with spaced apart rows of fingers (20), which are hingedly connected with the belt (19) said belt (19) having an upwardly running part at which the fingers project forwardly and move from the floor with the belt and the picked-up poultry upwardly said poultry in normal position being taken over by a series of substantially horizontal guide cams (25) at the level of the top reverse roll (15) at which level the fingers are withdrawn and move downwardly with the belt while the poultry is taken over by endless belts (27, 29) which feed them to a feed regulating device (30) which discharges into a box (36).
    Type: Grant
    Filed: April 8, 1986
    Date of Patent: June 2, 1987
    Inventor: Hendrikus G. van den Brink
  • Patent number: 4667955
    Abstract: An hydraulic universal gym comprises a floor supported base having an exercise platform thereon, the base releasably mounting a vertically extending, rearwardly inclining upright assembly arranged to receive a vertically adjustable exercise lever arm pivotally thereon. A double acting hydraulic piston-cylinder unit is pivotally mounted at its rear end to the upright assembly a spaced distance below the pivotally mounted lever arm, and includes a piston rod which extends outwardly from each end of the cylinder, the forward end of the piston rod extending from the front of the cylinder being pivotally connected to the lever arm a spaced distance outwardly of the arm's pivotal attachment to the upright.
    Type: Grant
    Filed: April 30, 1985
    Date of Patent: May 26, 1987
    Inventor: Nick J. Giesch
  • Patent number: 4666059
    Abstract: A container is formed of a pair of paperboard tubes opened at both ends and one telescoped within the other. A bottom inner closure cap closes the open bottom end of the inner tube and has a plurality of peripheral flaps inserted between the inner and outer tubes. One of the flaps is hinged to a tab portion of the inner closure cap which extends partially into the inner cap and terminates at its inner end in a transverse score line to allow the tab to be hinged outward of the cap for inserting a flexible plastic liner into the inner tube. A fitment on the liner is extended outward through, aligned openings in the flap and inner and outer tubes. An outer bottom cap covers the inner bottom cap and the fitment extends outwardly through an opening in its peripheral wall. With the assembly supported on a pallet, liquid is filled into the liner from its open top, the liner then is closed within the inner tube and a top outer cap is fitted over the top end of the outer tube.
    Type: Grant
    Filed: August 19, 1985
    Date of Patent: May 19, 1987
    Assignee: Longview Fibre Company
    Inventor: Duane M. Nordstrom
  • Patent number: 4665908
    Abstract: An extrication and spinal restraint device for use in emergency rescues and onsight medical aid where potential back, neck and shoulder injuries may exist comprises a jacket of flexible material which is arranged to extend the entire length of a victim's spine, neck and head and be secured thereto by head, torso and leg straps. The flexible jacket mounts a pair of rigid back brace boards arranged to be disposed behind a victim's back, neck and head and configured to extend along the victim's spine to provide rigid support only inwardly of the sides of the victim's body and head. A removable shoulder board may be attached to the spinal restraint device to support and restrain the victim's shoulders immovably in a flat, outstreteched condition.
    Type: Grant
    Filed: June 11, 1985
    Date of Patent: May 19, 1987
    Inventor: Carston R. Calkin
  • Patent number: 4658476
    Abstract: Device for conveying living chickens to a slaughtering plant, comprising means (6) for separating the chickens one by one, conveying them with the separated legs into leg clamps (39, 40) on a turn tables (38) which cooperate with means (42) which synchronize all chickens into an identical position in which they hang with their heads downwardly and with the legs into a position which allows taking over of each chicken by clamping frames with neck clamp (55) and leg clamps (56, 57) of an other conveyor (4) which feeds the chickens towards the slaughter hooks (59) of the slaughterhouse conveyor (5).
    Type: Grant
    Filed: November 28, 1984
    Date of Patent: April 21, 1987
    Inventor: Hendrikus G. van den Brink
  • Patent number: 4651675
    Abstract: A small animal exercise maze comprises a multiple compartment structure formed of a pluralty of wall panels secured removably at their inner ends to a support base and joined together at their outer ends by clips which secure together the outer ends of adjacent wall panels. Passageway openings are provided through selected common walls of adjacent compartments to form a maze path for an animal to move to and from a specialized compartment provided by omitting selected interior wall within the unit. An animal exercise wheel is mounted within the specialized compartment and the latter is closed by an approriately dimensioned closure wall.
    Type: Grant
    Filed: February 4, 1985
    Date of Patent: March 24, 1987
    Assignee: Collier Products, Inc.
    Inventor: David L. Collier
  • Patent number: PP6179
    Abstract: A new and distinctive cultivar of begonia plant bearing fully-filled flowers in a nice rose color against a compact background of small leaves with a reddish green color. The plant is characterized by vigorous and floriferous growth, producing flowers and leaves of long persistence, excellent display, and excellent keeping qualities.
    Type: Grant
    Filed: March 10, 1986
    Date of Patent: May 17, 1988
    Assignee: L. Daehnfeldt A/S
    Inventor: Soeren Hvid
  • Patent number: PP6180
    Abstract: A new and distinctive cultivar of begonia plant with a vigorous, compact growth habit, almost white tepals that fade into very light pink, a floriferous display and benefits by its excellent keeping qualities.
    Type: Grant
    Filed: March 10, 1986
    Date of Patent: May 17, 1988
    Assignee: L. Daehnfeldt A/S
    Inventor: Soeren Hvid
  • Patent number: PP6181
    Abstract: A new and distinctive cultivar of begonia plant bearing medium sized, heavily filled flowers of rose pink color and small, medium green, tapered leaves. The plant is characterized by rapid propagation and vigorous growth producing flowers and leaves of long persistance, excellent display, and resistance to powdery mildew.
    Type: Grant
    Filed: March 10, 1986
    Date of Patent: May 17, 1988
    Assignee: L. Daehnfeldt A/S
    Inventor: Soeren Hvid