Patents by Inventor Gregory A. Hartman

Gregory A. Hartman 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: 10086853
    Abstract: A movable cable loop descent system comprises a cable for forming into a loop, a receiver for attachment to a structure having a receiver pulley for engaging the cable loop, a brake assembly, having a drive pulley for being rotated by the cable loop, the brake assembly for slowing a rate of travel of the cable loop and a carriage supporting a load for attachment to the cable loop at a point and for movement between the structure and the ground. A rotor and substantially parallel conductive frame is mounted on an axle through the drive pulley. Magnets on a surface of the rotor and/or the frame induce eddy currents, as they are relatively rotated, which create a rotational braking force controlling descent of the carriage and load. The brake assembly may be removably positioned by a drive-on anchor. The cable is removable and the system may form a kit.
    Type: Grant
    Filed: February 4, 2016
    Date of Patent: October 2, 2018
    Assignee: RIDE, INC.
    Inventors: Gregory A. Hartman, Dan S. Smith
  • Patent number: 9381847
    Abstract: A belly dump trailer has a hopper having a bottom gate and a mobile support frame. The belly dump trailer is supported by wheels which may be in a dual axle configuration. The bottom gate is rotated between an open and closed position to discharge a load of materials within the hopper. The bottom gate is driven by a rotary drive connected to the bottom gate by an over center cam lock formed of pivotally connected link arms. The opening and closing of the bottom gate is driven by a pair of pneumatic linear actuators. The bottom gate may be positioned in between the two axles of the dual axle configuration.
    Type: Grant
    Filed: May 22, 2015
    Date of Patent: July 5, 2016
    Inventors: Danny S. Smith, Gregory A. Hartman
  • Publication number: 20160159376
    Abstract: A movable cable loop descent system comprises a cable for forming into a loop, a receiver for attachment to a structure having a receiver pulley for engaging the cable loop, a brake assembly, having a drive pulley for being rotated by the cable loop, the brake assembly for slowing a rate of travel of the cable loop and a carriage supporting a load for attachment to the cable loop at a point and for movement between the structure and the ground. A rotor and substantially parallel conductive frame is mounted on an axle through the drive pulley. Magnets on a surface of the rotor and/or the frame induce eddy currents, as they are relatively rotated, which create a rotational braking force controlling descent of the carriage and load. The brake assembly may be removably positioned by a drive-on anchor. The cable is removable and the system may form a kit.
    Type: Application
    Filed: February 4, 2016
    Publication date: June 9, 2016
    Inventors: Gregory A. Hartman, Dan S. Smith
  • Patent number: 9272166
    Abstract: A movable cable loop descent system comprises a cable for forming into a loop, a receiver for attachment to a structure having a receiver pulley for engaging the cable loop, a brake assembly, having a drive pulley for being rotated by the cable loop, the brake assembly for slowing a rate of travel of the cable loop and a carriage supporting a load for attachment to the cable loop at a point and for movement between the structure and the ground. A rotor and substantially parallel conductive frame is mounted on an axle through the drive pulley. Magnets on a surface of the rotor and/or the frame induce eddy currents, as they are relatively rotated, which create a rotational braking force controlling descent of the carriage and load. The brake assembly may be removably positioned by a drive-on anchor. The cable is removable and the system may form a kit.
    Type: Grant
    Filed: February 1, 2011
    Date of Patent: March 1, 2016
    Assignee: RIDE INC.
    Inventors: Gregory A. Hartman, Dan S. Smith
  • Publication number: 20150336496
    Abstract: A belly dump trailer has a hopper having a bottom gate and a mobile support frame. The belly dump trailer is supported by wheels which may be in a dual axle configuration. The bottom gate is rotated between an open and closed position to discharge a load of materials within the hopper. The bottom gate is driven by a rotary drive connected to the bottom gate by an over center cam lock formed of pivotally connected link arms. The opening and closing of the bottom gate is driven by a pair of pneumatic linear actuators. The bottom gate may be positioned in between the two axles of the dual axle configuration.
    Type: Application
    Filed: May 22, 2015
    Publication date: November 26, 2015
    Inventors: Danny S. Smith, Gregory A. Hartman
  • Patent number: 9016432
    Abstract: A descent control device for controlling rotational motion of an object includes: at least one drive assembly for rotationally engaging the rotating object; a first substantially planar ferromagnetic moving element in rotationally locked engagement with at least one drive assembly and comprising at least one recess formed in a surface thereof having at least one magnet fixedly disposed therein; a second substantially planar ferromagnetic moving element in rotationally locked engagement with at least one drive assembly, and comprising at least one recess formed in a surface thereof having at least one magnet fixedly disposed therein; and at least one conducting plate disposed proximate the first and second moving elements. A magnetic field may be induced by rotational movement of the first or second moving element relative to at least one conducting plate in a direction to oppose acceleration of at least one drive assembly as it rotationally engages the object.
    Type: Grant
    Filed: August 30, 2012
    Date of Patent: April 28, 2015
    Assignee: Rapid Egress Descent Systems Ltd.
    Inventors: Gregory A. Hartman, Dan S. Smith
  • Publication number: 20150023017
    Abstract: A portable, low-energy light tower to provide high, bright light having ground-engaging elements, a telescoping mast secured to the base and the mast having a pivot, the telescoping mast being rotatable about the pivot between a transport position and an operating position, and LED lighting elements at the top end of the telescoping mast. An electrically operated linear actuator mounted on the telescoping mast extends and retracts the telescoping mast through a system of cables and pulleys.
    Type: Application
    Filed: July 18, 2013
    Publication date: January 22, 2015
    Applicant: RIDE Inc.
    Inventors: Paul S. Smith, Danny S. Smith, Gregory A. Hartman
  • Publication number: 20140311827
    Abstract: An elevated platform for rapid evacuation has a cage having a floor and a railing, one or more suspension points secured to an upper portion of the cage above the floor and an eyelet secured to the cage for receiving a descender, the eyelet being positioned in relation to the cage such that a line drawn downward from the eyelet does not intersect the cage.
    Type: Application
    Filed: April 19, 2013
    Publication date: October 23, 2014
    Inventors: Paul S. Smith, Danny S. Smith, Gregory A. Hartman
  • Patent number: 8556234
    Abstract: A single cable descent control device comprises a pair of rotors with corresponding frames of conductive material mounted on a common central axle on either side of a drive pulley. The pulley is adapted to sit above a single descent cable. An enclosure is suspended from the device. Disposed along at least one surface of each of the rotors or of the corresponding frames or both, is a series of magnets such that rotation of the rotors relative to the frames induces eddy currents that oppose the magnetic field and create a rotational braking force providing precise and controllable descent of the enclosure with little or no mechanical wear or risk of overheating. In this configuration, constraints on the size of the enclosure are dispensed with, as are corresponding limitations on the positioning and angle of descent of the cable. Further, significant labor and material savings in manufacturing the enclosure may be obtained from the resulting simplicity of design.
    Type: Grant
    Filed: November 13, 2009
    Date of Patent: October 15, 2013
    Assignee: RIDE Inc.
    Inventors: Gregory A. Hartman, Dan S. Smith
  • Publication number: 20130048423
    Abstract: A supported davit arm extension assembly for a descent apparatus comprising an escape shuttle suspended from a cable defining a descent path from an initial point at a receiver of a platform to a terminal point proximate to a ground surface. The extension assembly comprises a davit arm extending above the platform and secured to the receiver, and a fall arrest trolley operatively coupled to the shuttle at a first end and terminating at a second end extending substantially away from the terminal point. The second end of the fall arrest trolley has a securement point for connection to and support of a load, such as a worker, by an overhead fall arrest. While the shuttle is docked with the receiver, the fall arrest trolley extends over the platform, supported by the davit arm, and facilitates substantially unfettered movement of the worker around the platform. As the worker enters the shuttle, it is disengaged from the receiver and follows the descent path of the cable toward the ground surface.
    Type: Application
    Filed: April 29, 2011
    Publication date: February 28, 2013
    Applicant: R.I.D.E. INC.
    Inventors: Paul Smith, Daniel S. Smith, Darrell Boulter, Frank Murray, Gregory A. Hartman
  • Publication number: 20130048422
    Abstract: A descent control device for controlling rotational motion of an object includes: at least one drive assembly for rotationally engaging the rotating object; a first substantially planar ferromagnetic moving element in rotationally locked engagement with at least one drive assembly and comprising at least one recess formed in a surface thereof having at least one magnet fixedly disposed therein; a second substantially planar ferromagnetic moving element in rotationally locked engagement with at least one drive assembly, and comprising at least one recess formed in a surface thereof having at least one magnet fixedly disposed therein; and at least one conducting plate disposed proximate the first and second moving elements. A magnetic field may be induced by rotational movement of the first or second moving element relative to at least one conducting plate in a direction to oppose acceleration of at least one drive assembly as it rotationally engages the object.
    Type: Application
    Filed: August 30, 2012
    Publication date: February 28, 2013
    Applicant: RAPID EGRESS DESCENT SYSTEMS, LTD.
    Inventors: Gregory A. Hartman, Dan S. Smith
  • Publication number: 20120318609
    Abstract: A movable cable loop descent system comprises a cable for forming into a loop, a receiver for attachment to a structure having a receiver pulley for engaging the cable loop, a brake assembly, having a drive pulley for being rotated by the cable loop, the brake assembly for slowing a rate of travel of the cable loop and a carriage supporting a load for attachment to the cable loop at a point and for movement between the structure and the ground. A rotor and substantially parallel conductive frame is mounted on an axle through the drive pulley. Magnets on a surface of the rotor and/or the frame induce eddy currents, as they are relatively rotated, which create a rotational braking force controlling descent of the carriage and load. The brake assembly may be removably positioned by a drive-on anchor. The cable is removable and the system may form a kit.
    Type: Application
    Filed: February 1, 2011
    Publication date: December 20, 2012
    Applicant: R.I.D.E. Inc.
    Inventors: Gregory A. Hartman, Dan S. Smith
  • Patent number: 8272476
    Abstract: A magnetic descent control device is disclosed. The device comprises an input shaft affixed to a rotating driven sheave acting as a drive assembly, which grips a cable guiding the descent path of a body carrying cage. The input shaft has a shoulder upon which rests a rotor. The rotor is encased within a front and back enclosure of conductive material. Disposed along at least one surface of the rotor and/or at least one of the conductors, is a series of magnets such that rotation of the rotor relative to the conductors creates relative motion between the magnets' magnetic field and the conductor inducing eddy currents in the conductor that oppose the magnetic field creating a rotational braking force. As a result, very precise and/or controllable descent may be obtained over a broad range of descent angles and/or distances with little or no mechanical wear or risk of overheating. Preferably, the sheave gripping the cable may have a circumferential groove to better improve traction and grip of the cable.
    Type: Grant
    Filed: December 9, 2008
    Date of Patent: September 25, 2012
    Assignee: Rapid Egress Descent Systems Ltd.
    Inventors: Gregory A. Hartman, Dan S. Smith
  • Publication number: 20110114907
    Abstract: A single cable descent control device comprises a pair of rotors with corresponding frames of conductive material mounted on a common central axle on either side of a drive pulley. The pulley is adapted to sit above a single descent cable. An enclosure is suspended from the device. Disposed along at least one surface of each of the rotors or of the corresponding frames or both, is a series of magnets such that rotation of the rotors relative to the frames induces eddy currents that oppose the magnetic field and create a rotational braking force providing precise and controllable descent of the enclosure with little or no mechanical wear or risk of overheating. In this configuration, constraints on the size of the enclosure are dispensed with, as are corresponding limitations on the positioning and angle of descent of the cable. Further, significant labor and material savings in manufacturing the enclosure may be obtained from the resulting simplicity of design.
    Type: Application
    Filed: November 13, 2009
    Publication date: May 19, 2011
    Inventors: Gregory A. Hartman, Dan S. Smith
  • Publication number: 20090159373
    Abstract: A magnetic descent control device is disclosed. The device comprises an input shaft affixed to a rotating driven sheave acting as a drive assembly, which grips a cable guiding the descent path of a body carrying cage. The input shaft has a shoulder upon which rests a rotor. The rotor is encased within a front and back enclosure of conductive material. Disposed along at least one surface of the rotor and/or at least one of the conductors, is a series of magnets such that rotation of the rotor relative to the conductors creates relative motion between the magnets' magnetic field and the conductor inducing eddy currents in the conductor that oppose the magnetic field creating a rotational braking force. As a result, very precise and/or controllable descent may be obtained over a broad range of descent angles and/or distances with little or no mechanical wear or risk of overheating. Preferably, the sheave gripping the cable may have a circumferential groove to better improve traction and grip of the cable.
    Type: Application
    Filed: December 9, 2008
    Publication date: June 25, 2009
    Applicant: RAPID EGRESS DESCENT SYSTEMS, LTD.
    Inventors: Gregory A. Hartman, Dan S. Smith