Patents Represented by Attorney, Agent or Law Firm Curtis V. Harr
  • Patent number: 5894665
    Abstract: A tool for extracting bearings from a long shaft as well as method of doing same is disclosed. This method and tool begins with connecting a split sleeve about a stuck bearing. This sleeve is then placed in a case. One or more extension are then added, thus allowing the puller to reach bearings on long shafts. When a sufficient number of extensions are added, a cap having an extraction bolt, which engages the end of the bearing shaft inside of the puller is attached. The extraction bolt is then rotated in a clockwise manner which forces the puller, and the engaged bearing, in an outward manner from the bearing shaft. When the extraction bolt is rotated to the extent of its working range by being turned all the way in, the puller is disengaged from the bearing and an extension section is then removed. This allows the extraction bolt to be rotated in a counter clockwise manner to a point were it regains its full working range.
    Type: Grant
    Filed: April 25, 1996
    Date of Patent: April 20, 1999
    Inventor: Rodney Duane Olmsted
  • Patent number: 5868211
    Abstract: A portable hydraulically driven posthole digger is provided. The present invention is mounted to an existing loader-type tractor or skid steer loader by the use of a ball and socket type attachment such as a trailer ball and trailer tongue apparatus. The tongue is mounted vertically above the post hole digger and the trailer ball is mounted on the loader such as the bucket on a front end loader. The posthole digger's hydraulic motor is powered off of the existing hydraulic system of the equipment being used. This configuration not only provides an inexpensive method of digging post holes, but further requires a minimal amount of mounting hardware and can be easily removed and stored when not in use.
    Type: Grant
    Filed: May 14, 1997
    Date of Patent: February 9, 1999
    Inventor: Timothy James Bohn
  • Patent number: 5860763
    Abstract: The present application discloses a sidewalk lifting device made of steel framed tower that has a flat plate extending inward from the lowest end of the tower. This plate holds the lower surface of a sidewalk slab and also provides the lifting surface to elevate a damaged sidewalk. Additionally, attached to the inside surface of the tower in a position above the plate, is an adjustable slab brace frame which serves to hold the upper surface of a given sidewalk slab while it is being lifted.The lifting tower also has on its upper end outward extending frame members. When lifting a damaged sidewalk, multiple lifting devices may be used and supplied with hydraulic bottle jacks which fit on the outside edge of the lifting towers.A method of leveling sidewalks is also disclosed this method includes lifting a sidewalk slab to be leveled then injecting mason's sand into the cavity created between the lower surface of the sidewalk and the settled earth below it.
    Type: Grant
    Filed: April 26, 1996
    Date of Patent: January 19, 1999
    Inventor: Charles Lee Asplin
  • Patent number: 5829238
    Abstract: A hay bale accumulator is disclosed. This accumulator is made up of a bale platform on pivotal wheels. This platform is attached to a solid hitch at the back of a baler. The attachment point of the platform to the hitch contains a hydraulicly operated system that allows the platform to move from side to side in reference to the hitch. This hydraulic system is also used to lower and raise the platform. The platform is designed to hold two large rectangular bales at a distance off of the ground. The accumulator works by catching a large rectangular bale as it is ejected out of a baler. A sensor on the platform will then activate the hydraulics causing the platform to shift to the side. This shifting places an open space on the platform behind the baler. When a second bale is ejected it will be placed on the platform by the first and a second sensor will be activated. This sensor will cause the hydraulic system to lower the platform and allow the bales to drag on the ground.
    Type: Grant
    Filed: August 8, 1996
    Date of Patent: November 3, 1998
    Inventor: Harlan Richard Branson
  • Patent number: 5816757
    Abstract: The present inventions discloses an apparatus that may be used to quickly and easily adapt a typical snowmobile trailer and hold down system to a clamping type system. This system may then be used to hold and secure not only snowmobile but all terrain vehicles and lawn tractors to the bed of a trailer. These objectives are accomplished by the use of a clamp like device that bolts to the bed of a utility trailer. This clamp is used in conjunction with the commonly used retaining bar typically used to secure the skies of a snowmobile to the trailer. The clamp of the present invention provides a quick and secure way to fix the vehicle to the trailer and can be easily locked to deter the theft of the vehicle when it is left unattended.
    Type: Grant
    Filed: December 31, 1996
    Date of Patent: October 6, 1998
    Inventor: Ronald Wayne Huston
  • Patent number: 5803457
    Abstract: A method of playing a two to four person checkerboard game utilizing a traditional game board consisting of 64 equally sized squares in an 8 by 8 matrix known as the battleground. An 8 by 3 matrix, known as a players home base, is attached to each of the four sides of the main game board, providing an additional area in which each players' game pieces are placed. Four sets of 12 game pieces in different colors are provided, allowing two to four players, or teams of players, each to play in a single game. The game utilizes a novel set of rules for kinging and jumping checkers.
    Type: Grant
    Filed: August 20, 1997
    Date of Patent: September 8, 1998
    Inventor: Denis Martin Smith
  • Patent number: 5759117
    Abstract: A golf ball teeing device which allows an impaired or elderly golfer to tee a golf ball without the need of bending over, the devices may also be used to retrieve balls from the ground, cup or water hazards. These goals are accomplished by the use of a long handled, golf club-like device with a spring loaded golf ball and tee holding device at its bottom end and a depressable knob at the top end. The golfer uses the device by depressing the knob, which opens the gap between the ball holder and tee holder, thereby allowing a golfer to place a tee and golf ball in the device. The user then places the device in an upright position and pushes the tee at the bottom end of the present invention into the ground, and again depresses the knob, releasing the tee and the ball in their desired position. The golfer may also depress the knob, causing the aforementioned gap to open, and allowing the golfer to place the gap over a golf ball that is on the ground.
    Type: Grant
    Filed: July 12, 1996
    Date of Patent: June 2, 1998
    Inventor: Charles Emmett Erickson, Jr.
  • Patent number: 5738460
    Abstract: The present invention discloses a portfolio type device employing sealed plastic sheet protectors fastened together in a ringed binder, and enclosed by a durable outer shell this shell may be made of a suitable material such as leather, vinyl or nylon canvas. When in the closed position, the present invention employs a zipper on three sides to secure the shell, thereby completely encasing the documents and providing protection from wind, rain and other elements. On the fourth side of the device is attached a handle to facilitate portability of said device. The plastic sheet protectors may be of varying sizes to accommodate oversized documents such as blueprints, photographs, business cards or other documents. The oversized sheet protectors may be folded over to fit within the present invention when it in the closed position, although not causing permanent folds or curling of the edges of the document.
    Type: Grant
    Filed: September 6, 1996
    Date of Patent: April 14, 1998
    Inventor: Dallas Edward Flynn
  • Patent number: 5732993
    Abstract: The present invention discloses a method of constructing collapsible raw material bins for a portable asphalt plant in such a manner that said raw material bins may be located on the same flatbed semi trailer as the rest of the asphalt plant. The collapsible material bins are constructed in such that, when not in use, they may collapse in an accordion-like fashion upon one another. This is done by having one wall of two of the bins constructed so that it may slide in and out within the respective bin. Additionally, the bins themselves are mounted on a sliding rail system which allows for the necessary movement of the bin walls. The end result of this design is that it provides a compact enough raw material bin system to allow it to be constructed on the same flatbed trailer as the asphalt tumbler, and yet provides a large enough raw material bin capacity to allow for the efficient operation of the portable asphalt plant.
    Type: Grant
    Filed: November 21, 1995
    Date of Patent: March 31, 1998
    Inventor: Joel Millard Dahl
  • Patent number: 5729919
    Abstract: The present invention comprises one or more anti-drift stabilizers mounted on the leading edge of a snow plow's blade. These stabilizers are mounted at an angle that is in the same direction as the angle of the snowplow in relation to the plow truck. As snow or other media is channeled to one side of a plow blade it exerts a force in the opposite direction thus tending to cause a plow to want to knife or drift in a direction opposite where the snow or other media is being deposited by the blade. As snow or other media passes over the surfaces of the stabilizers it exerts pressure that is opposite to, and counteracts the knifing action created at the emptying end of the plow by the accumulation of snow. The result of this is that the plow can be operated safely without the need to make constant corrections for the knifing and without the added danger of the inattentive operator being pulled from the roadway or into oncoming traffic and causing property damage or personal injury.
    Type: Grant
    Filed: June 5, 1997
    Date of Patent: March 24, 1998
    Inventor: Gerald Pearl DeBoer
  • Patent number: 5709329
    Abstract: A storage shelf for use in an extended cab type pickup is disclosed. The shelf consists of a folding tray having extendable outer edges for adjustment to fit most models of extended cab pickups. The shelf is laterally secured at either end to the interior molding of the pickup by the use of notches which fit into the contours of the molding. The surface of this shelf is surrounded by rails which extend around the outside of the tray. The effect of this is to provide an easily accessible place to store personal items. In addition, the lateral strength of the present invention is enhanced by the use of hinge braces, a rear side support block which helps support the rear edge of the shelf, and a support leg which extends from the front edge of the shelf to the floor of the pickup. These features allow for the storage of heavy objects on the present invention.
    Type: Grant
    Filed: October 25, 1995
    Date of Patent: January 20, 1998
    Inventor: Gordon Emery Johnson
  • Patent number: 5669610
    Abstract: A Human Assailant Simulator Target for firearms training is disclosed. This target consists of a wire frame torso which may be supplied with arms and legs or used without limbs. The target frame may then be fitted with a bullet strike recorder paper having human vital areas or various targets imprinted thereon. Furthermore this paper may easily and inexpensively be replaced. The users of the target may then fit the target with clothes, facial features, hair wigs, masks, or various articles to simulate a person carrying weapons and or goods. The use of the wire frame provides a target that is ninety-eight percent open space in the primary bullet impact area, while the recorder paper allows a user to check accuracy, and quickly renew the target for the next user, while still giving a realistic target for practice.
    Type: Grant
    Filed: November 22, 1995
    Date of Patent: September 23, 1997
    Inventor: Edward Francis Salyers
  • Patent number: 5665910
    Abstract: A means of accurately measuring farm chemical during its application, through the use of load cell and a means of mounting this load cell to a sprayer apparatus is disclosed. The measurement of the chemical is accomplished by the use of a load cell which is mounted in a position below a keg of liquid farm chemical. The load cell measures the weight of the chemical keg and the liquid chemical contained therein. By knowing the specific gravity of the chemical being used and the weight of the keg itself, the operator can accurately compute the volume of chemical which has passed through the sprayer system and the rate of that passage. This gives the operator an accurate measure of the amount of the liquid chemical applied to each acre of crop land.
    Type: Grant
    Filed: July 9, 1996
    Date of Patent: September 9, 1997
    Inventors: Scott William Knutson, Curtis Jon Knutson
  • Patent number: 5632262
    Abstract: A compound Sling Shot is disclosed. This Sling Shot uses a shortened pair of resilient compound bow limbs which are horizontally mounted to a rigid center body. This body is substantially divided into an upper and lower section. The upper section is supplied with a projectile or barrel hole. The upper section is further equipped to hold the bow limbs in the horizontal plane. The lower section of body is a hand grip having an attached forearm brace. The bow limbs are supplied with cams and a common compound bow string configuration. The firing portion of the string is supplied with a dual string separated by a projectile pouch. In this configuration the dual string holds the projectile pouch in correct position. So as a projectile is fired it passes directly through the projectile or barrel hole on the upper body section. Thus, a sling shot with substantial power and accuracies is disclosed.
    Type: Grant
    Filed: January 11, 1996
    Date of Patent: May 27, 1997
    Inventor: Anthony D. Hanson
  • Patent number: 5607232
    Abstract: The present application discloses an asphalt drum that is supplied with a forward and rearward insulator ring. This ring is typically constructed of a ceramic insulation such as (THERMO-MAX). The insulation is further encased in a steel shell to protect the ceramic ring and to allow for a durable drive surface. Through the use of the insulation ring the typical steel trunnions may be replaced with multi-ply rubber tires. As these tires wear they may be easily and quickly replaced with readily available stock. In the typical configuration the drum will ride on four tires, two on each ring. One tire on each ring being an idler wheel while the other is a drive wheel. The entire system may also be attached to a semi trailer for transport.
    Type: Grant
    Filed: December 13, 1995
    Date of Patent: March 4, 1997
    Inventor: Joel M. Dahl
  • Patent number: 5592792
    Abstract: A self sealing potato truck loading dock is disclosed. This loading dock provides an effective air tight seal which serves to isolate the interior of a warehouse and the potato truck box from the outside air while said truck is being loaded or unloaded. This seal is accomplished by providing a series of double layered sealing canvases that encircle the entire opening of the loading dock opening. These double layered sealing canvases provide an air tight seal between the body of the potato truck box and the outside air by using a system of alternating slits in the respective layers of the sealing canvases and elastic bungee cords attached inside of the sealing canvases.
    Type: Grant
    Filed: June 21, 1995
    Date of Patent: January 14, 1997
    Inventors: Craig F. Meehan, Lyle G. Forde
  • Patent number: 5566963
    Abstract: A floating pin fifth wheel hitch is disclosed. This hitch uses separate points to bear the vertical and horizontal forces created by the towed vehicle. By allowing the pivot point to float and thus bear only the horizontal forces of the trailer it can be placed rearward of the rear axle of the towing vehicle without adverse affects to the handling characteristics of the truck and trailer combination. The hitch is further supplied with a vertical force or weight bearing slide that can be placed above or in front of the rear axle of the towing vehicle. By splitting the forces created by the trailer and letting them be born by the towing truck a hitch is created that allows for a short turning radius while still shortening the overall length of the truck and trailer combination and keeping the weight of the trailer in a position that does not effect the handling or ride characteristics of the truck.
    Type: Grant
    Filed: July 25, 1995
    Date of Patent: October 22, 1996
    Inventor: Marvin F. Johnson
  • Patent number: 5561914
    Abstract: A mobile Sand Dryer is disclosed. This dryer is substantially made up of two portions. The first portion of the Sand Dryer is a wet sand tank. This tank is essentially divided into two distinct portions; an upper wet sand holding chamber and a lower sand drying chamber. The two chambers are divided by a grate. The upper wet sand holding chamber is supplied with a removable lid as well as a fan which may be used to create a vacuum in the chamber. The lower sand drying chamber is supplied with a propane burner and a hopper bottom. During use wet sand is placed in the upper wet sand drying chamber via the removable lid. The wet sand collects on the steel grate as it is placed into the chamber. Upon ignition of the burner and the fan the vacuum crated by the fan tends to draw the heat and moisture from the sand up and out the top of the chamber. As the sand on the grate is dried it falls through the grate before finally be moved via a vacuum tube to the second chamber.
    Type: Grant
    Filed: March 22, 1996
    Date of Patent: October 8, 1996
    Inventor: Charles L. Asplin
  • Patent number: D382034
    Type: Grant
    Filed: March 14, 1996
    Date of Patent: August 5, 1997
    Inventor: Arthur John Dullinger
  • Patent number: D388194
    Type: Grant
    Filed: December 11, 1995
    Date of Patent: December 23, 1997
    Inventor: Robert John Straub