Patents by Inventor Bruce E. Kallevig

Bruce E. Kallevig has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 8770635
    Abstract: A grapple style compression latch is provided for a vehicle door. The latch includes a pair of opposing jaws to retain and release a striker on the door frame. The movement of the grapple jaws is controlled by a handle mounted on the latch housing and moveable between open and closed positions. Drive links and a plurality of jaw pins control the movement of the jaws between open and closed positions. A compression spring provides over-center action for the latch.
    Type: Grant
    Filed: April 20, 2011
    Date of Patent: July 8, 2014
    Assignee: Trimark Corporation
    Inventors: Tobias J. Schwickerath, Christopher M. Lane, Ricci L. Marzolf, Bruce E. Kallevig
  • Patent number: 8528915
    Abstract: A self-propelled vehicle comprises a frame and a platform pivotally mountable to a rear portion of the vehicle frame. The platform is pivotally movable between a first position in which the platform extends generally horizontally from the rear portion of the frame to support a rider during operation of the vehicle, and a second position in which the platform is removably secured in a generally upright position adjacent the rear portion of the frame to enable walk-behind operation of the vehicle.
    Type: Grant
    Filed: December 19, 2011
    Date of Patent: September 10, 2013
    Inventor: Bruce E. Kallevig
  • Publication number: 20120267904
    Abstract: A grapple style compression latch is provided for a vehicle door. The latch includes a pair of opposing jaws to retain and release a striker on the door frame. The movement of the grapple jaws is controlled by a handle mounted on the latch housing and moveable between open and closed positions. Drive links and a plurality of jaw pins control the movement of the jaws between open and closed positions. A compression spring provides over-center action for the latch.
    Type: Application
    Filed: April 20, 2011
    Publication date: October 25, 2012
    Applicant: TRIMARK CORPORATION
    Inventors: TOBIAS J. SCHWICKERATH, CHRISTOPHER M. LANE, RICCI L. MARZOLF, BRUCE E. KALLEVIG
  • Patent number: 8286976
    Abstract: A self-propelled vehicle comprises a frame and a platform pivotally mountable to a rear portion of the vehicle frame. The platform is pivotally movable between a first position in which the platform extends generally horizontally from the rear portion of the frame to support a rider during operation of the vehicle, and a second position in which the platform is removably secured in a generally upright position adjacent the rear portion of the frame to enable walk-behind operation of the vehicle.
    Type: Grant
    Filed: December 19, 2011
    Date of Patent: October 16, 2012
    Inventor: Bruce E. Kallevig
  • Publication number: 20120205883
    Abstract: A self-propelled vehicle comprises a frame and a platform pivotally mountable to a rear portion of the vehicle frame. The platform is pivotally movable between a first position in which the platform extends generally horizontally from the rear portion of the frame to support a rider during operation of the vehicle, and a second position in which the platform is removably secured in a generally upright position adjacent the rear portion of the frame to enable walk-behind operation of the vehicle.
    Type: Application
    Filed: December 19, 2011
    Publication date: August 16, 2012
    Inventor: Bruce E. Kallevig
  • Patent number: 8079605
    Abstract: A self-propelled vehicle comprises a frame and a platform pivotally mountable to a rear portion of the vehicle frame. The platform is pivotally movable between a first position in which the platform extends generally horizontally from the rear portion of the frame to support a rider during operation of the vehicle, and a second position in which the platform is removably secured in a generally upright position adjacent the rear portion of the frame to enable walk-behind operation of the vehicle.
    Type: Grant
    Filed: November 25, 2008
    Date of Patent: December 20, 2011
    Inventor: Bruce E. Kallevig
  • Publication number: 20090072504
    Abstract: A self-propelled vehicle comprises a frame and a platform pivotally mountable to a rear portion of the vehicle frame. The platform is pivotally movable between a first position in which the platform extends generally horizontally from the rear portion of the frame to support a rider during operation of the vehicle, and a second position in which the platform is removably secured in a generally upright position adjacent the rear portion of the frame to enable walk-behind operation of the vehicle.
    Type: Application
    Filed: November 25, 2008
    Publication date: March 19, 2009
    Inventor: Bruce E. Kallevig
  • Patent number: 7458588
    Abstract: A self-propelled vehicle comprises a frame and a platform pivotally mountable to a rear portion of the vehicle frame. The platform is pivotally movable between a first position in which the platform extends generally horizontally from the rear portion of the frame to support a rider during operation of the vehicle, and a second position in which the platform is removably secured in a generally upright position-adjacent the rear portion of the frame to enable walk-behind operation of the vehicle.
    Type: Grant
    Filed: September 8, 2005
    Date of Patent: December 2, 2008
    Inventor: Bruce E. Kallevig
  • Patent number: 7338097
    Abstract: A latch assembly for a movable closure element. The latch assembly has a housing with first and second rotors each movable relative thereto between a first latched position, a release position, and a second latched position. The first and second rotors in their first and second latched positions define a receptacle with an effective diameter and a center line that is angularly disposed to the line of a straight edge on the housing. With the rotors in their first latched positions, the center line of the receptacle is spaced from the first line a first distance. The center line of the receptacle is at a first location with the rotors in their first latched position and a second location with the rotors in their second latched positions. The first and second locations are spaced a second distance. The effective diameter of the receptacle, with the first and second rotors in their first latched positions, varies from each of the first and second distances by no more than ±40%.
    Type: Grant
    Filed: April 23, 2003
    Date of Patent: March 4, 2008
    Assignee: Tri/Mark Corporation
    Inventors: Ricci L. Marzolf, Joe Daniel Knight, Bruce E. Kallevig, Bruce E. Frohman
  • Patent number: 7267377
    Abstract: A latch assembly for a movable closure element. The latch assembly has a housing, a first rotor movable relative to the housing selectively between a) a first latched position and b) a release position, and a second rotor movable relative to the housing selectively between a) a first latched position and b) a release position. The first rotor has a first throat to receive a strike element. The latch assembly further has an operating assembly with a latched state and an unlatched state. The operating assembly in the latched state releasably maintains the first rotor in its first latched position and the second rotor in its first latched position. The first rotor is movable substantially parallel to a reference plane as the first rotor moves between its first latched and release positions. The first rotor has a non-uniform thickness taken orthogonally to the reference plane.
    Type: Grant
    Filed: March 11, 2003
    Date of Patent: September 11, 2007
    Assignee: Tri/Mark Corporation
    Inventors: Ricci L. Marzolf, Joe Daniel Knight, Bruce E. Kallevig, Bruce E. Frohman
  • Patent number: 6942259
    Abstract: A latch assembly is provided for a movable closure element. The latch assembly has a housing and a first rotor that is movable relative to the housing selectively between a) a first latched position and b) a release position. The first rotor is biased towards the release position and has a first throat to receive a strike element. The latch assembly further consists of an operating assembly having a latched state and an unlatched state The operating assembly in the latched state releasably maintains the first rotor in the first latched position. The operating assembly has a catch arm that is movable relative to the housing from a first position into a second position to thereby change the operating assembly from the latched state into the unlatched state.
    Type: Grant
    Filed: December 11, 2002
    Date of Patent: September 13, 2005
    Assignee: Tri/Mark Corporation
    Inventors: Ricci L. Marzolf, Joe Daniel Knight, Bruce E. Kallevig, Bruce E. Frohman
  • Publication number: 20040178643
    Abstract: A latch assembly for a movable closure element. The latch assembly has a housing with a peripheral edge defined in part by a substantially straight edge portion extending along a first line. A first rotor is movable relative to the housing selectively between a) a first latched position, b) a release position, and c) a second latched position between the first latched position and the release position. A second rotor is movable relative to the housing selectively between a) a first latched position, b) a release position, and c) a second latched position between the first latched and release positions for the second rotor. An operating assembly has a latched state and an unlatched state. The operating assembly in the latched state releasably maintains the first rotor in its first and second latched positions and the second rotor in its first and second latched positions.
    Type: Application
    Filed: April 23, 2003
    Publication date: September 16, 2004
    Applicant: Tri/Mark Corporation
    Inventors: Ricci L. Marzolf, Joe Daniel Knight, Bruce E. Kallevig, Bruce E. Frohman
  • Publication number: 20040113433
    Abstract: A latch assembly is provided for a movable closure element. The latch assembly has a housing and a first rotor that is movable relative to the housing selectively between a) a first latched position and b) a release position. The first rotor is biased towards the release position and has a first throat to receive a strike element. The latch assembly further consists of an operating assembly having a latched state and an unlatched state The operating assembly in the latched state releasably maintains the first rotor in the first latched position. The operating assembly has a catch arm that is movable relative to the housing from a first position into a second position to thereby change the operating assembly from the latched state into the unlatched state.
    Type: Application
    Filed: December 11, 2002
    Publication date: June 17, 2004
    Applicant: Tri/Mark Corporation
    Inventors: Ricci L. Marzolf, Joe Daniel Knight, Bruce E. Kallevig, Bruce E. Frohman
  • Publication number: 20040113435
    Abstract: A latch assembly for a movable closure element. The latch assembly has a housing, a first rotor movable relative to the housing selectively between a) a first latched position and b) a release position, and a second rotor movable relative to the housing selectively between a) a first latched position and b) a release position. The first rotor has a first throat to receive a strike element. The latch assembly further has an operating assembly with a latched state and an unlatched state. The operating assembly in the latched state releasably maintains the first rotor in its first latched position and the second rotor in its first latched position. The first rotor is movable substantially parallel to a reference plane as the first rotor moves between its first latched and release positions. The first rotor has a non-uniform thickness taken orthogonally to the reference plane.
    Type: Application
    Filed: March 11, 2003
    Publication date: June 17, 2004
    Applicant: Tri/Mark Corporation
    Inventors: Ricci L. Marzolf, Joe Daniel Knight, Bruce E. Kallevig, Bruce E. Frohman
  • Patent number: 6551050
    Abstract: An attachment for skid steer loaders and the like which combines a forklift mast with width adjustable rolling stabilizer outriggers. The ground engaging rolling stabilizer caster wheels are positioned to each side of the lifted load. The castering wheels bear a large fraction of the weight of the lifted load as well as stabilizing the load while it is in motion over varying terrain. The rolling stabilizer lift dramatically increases the weight lifting capacity and the height to which loads can be lifted beyond that of the loader alone.
    Type: Grant
    Filed: June 23, 2000
    Date of Patent: April 22, 2003
    Assignee: Kaltec of Minnesota
    Inventors: Bruce E. Kallevig, Brian Nelson
  • Patent number: 6375405
    Abstract: An automatic attachment adapter adapted for coupling attachments to and uncoupling attachments from loader lift arms without the need for the operator to exit the equipment or employ a helper. The automatic attachment adapter employs a compact, lightweight, high strength latching device to make connection between the attachment plate of the loader and mounting plate of the attachment. By making use of interlocking rotating clevises the latching device is self-centering, requiring only approximate alignment to operate. Additionally, the latching mechanism is self cleaning of debris which may interfere with its operation.
    Type: Grant
    Filed: June 21, 2000
    Date of Patent: April 23, 2002
    Assignee: Kaltec of Minnesota
    Inventor: Bruce E. Kallevig
  • Patent number: 6357078
    Abstract: An assembly for releasably holding a movable closure element in a desired position relative to a support. The holding assembly has a first part with a first element and a first actuator and a second part with a second element and a second actuator. The first part is connectable to a closure element, with the second part connectable to a support for the closure element. At least one of the first and second elements is movable relative to a support and/or closure element to which the at least one of the first and second elements is connected to allow the first and second elements to act, one against the other, so that the first and second elements realize a holding position as a closure element to which the first part is connected is moved towards and into the desired position.
    Type: Grant
    Filed: June 15, 2000
    Date of Patent: March 19, 2002
    Assignee: Tri/Mark Corporation
    Inventors: Ricci L. Marzolf, Bruce E. Kallevig, Bruce E. Frohman, Craig J. Helton
  • Patent number: 5111624
    Abstract: A fan is passively, detachably carried by the grinding head assembly of a railroad track rail grinding machine. The fan plate is oriented above the grinding stone and rotates with the grinding stone during grinding operations. A downward draft of air is induced by the fan to limit the dispersion of sparks, grinding stone residue, and other byproducts of the grinding operation. Water, with or without a surfactant added, can be introduced into the downdraft.
    Type: Grant
    Filed: September 10, 1990
    Date of Patent: May 12, 1992
    Assignee: Loram Maintenance of Way, Inc.
    Inventors: John J. Shoenhair, Bruce E. Kallevig