Attached To Strand Wound On Reel, And Means For Retarding Unwinding Of Strand Patents (Class 182/231)
  • Patent number: 9381384
    Abstract: An electromechanical apparatus for evacuating buildings in the event of a fire includes a reel that has, rolled up on it, a mooring cable that longitudinally passes through the inside of a rigid tube, ending in an evacuation harness, where an individual will be secured. The weight of the individual makes it possible to rock the tube and a lever that has a braking disc and which acts on a brake disc that allows, by means of a mechanical transmission system, the braking and/or retention of the reel and consequently the descent of the individual. There is a radio-control unit and a standalone electric and electronic safety system that is activated when the speed of descent of the individual is too great. The apparatus allows evacuation and can be reused, once used. The apparatus carries away, brakes, retains and evacuates the individual making use of the electromechanical apparatus.
    Type: Grant
    Filed: February 28, 2013
    Date of Patent: July 5, 2016
    Inventor: Joaquín Tamayo Insua
  • Publication number: 20150041253
    Abstract: A retractable lifeline assembly includes a housing having a first portion and a second portion separated by a plate portion having an aperture. The aperture places a first cavity of the first portion in fluid communication with a second cavity of the second portion. A shaft extends through the aperture into the first cavity and the second cavity, and a seal proximate the shaft and the plate portion seals the first cavity from the second cavity. The first portion contains a cable assembly and the second portion contains a brake assembly.
    Type: Application
    Filed: October 24, 2014
    Publication date: February 12, 2015
    Inventor: Scott C. Casebolt
  • Patent number: 8950551
    Abstract: A safety device for use in a fall arrest system, has a safety line drum mounted for rotation and a speed responsive engagement mechanism responsive to the speed of rotation of the drum, which is activated above a predetermined rotational speed of the drum to deploy an energy absorber. A rotational transmission member (which may be in the form of a shaft) is coupled, via the speed responsive engagement mechanism, when activated, to rotate with the drum. The energy absorber is deployed in response to operation of the rotational transmission member. The speed responsive engagement mechanism may be mounted intermediate the drum and the energy absorber for ease of replacement.
    Type: Grant
    Filed: October 10, 2008
    Date of Patent: February 10, 2015
    Assignee: Latchways PLC
    Inventors: Karl Jones, Owain Jones
  • Patent number: 8925687
    Abstract: A self-retracting lifeline is provided. In one embodiment, the self-retracting lifeline includes a housing, a drum, an activation assembly, a lifeline and a connector, the drum is received in the housing. The activation assembly is received in the housing. Moreover, the activation assembly is operationally coupled to the drum to selectively rotate the drum. The connector is coupled proximate an end of the lifeline. The connector has a connector passage. The connector passage is configured and arranged to selectively couple the lifeline to the drum.
    Type: Grant
    Filed: May 23, 2013
    Date of Patent: January 6, 2015
    Assignee: D B Industries, LLC
    Inventors: Vincent G. Meillet, Scott C. Casebolt
  • Patent number: 8928482
    Abstract: Apparatus for monitoring compliance with the 100% tied off rule for climbers using personal fall protection equipment. The personal fall protection monitoring system includes a remote monitoring module that monitors multiple harness systems. Each harness system includes sensors that detect various conditions associated with the harness, such as falling, the harness buckled properly, and the lanyards deployed properly. The system includes a harness module that monitors the sensors and indicates an alarm condition to the climber and to the remote monitoring module. The harness module includes a transmitter that communicates with the remote monitoring module. The remote monitoring module communicates with multiple harness systems to indicate and log the status of each harness system.
    Type: Grant
    Filed: November 20, 2012
    Date of Patent: January 6, 2015
    Assignee: JCJ Inc.
    Inventors: William Neill Flynt, Jacob M. Martin, Shawn A. Remington, Timothy Vile
  • Publication number: 20140251731
    Abstract: A safety device for use in a fall arrest or fall safety system includes an energy absorber to absorb energy in the event of a fall or other impulse event. The energy absorber is a resilient element (such as a tolerance ring) providing an interference fit between a first component of the device and a second component of the device. In the event of a fall arrestor other impulse event, the first and second components effect movement relative to one another, the interference fit being overcome, and the resilient element/tolerance ring acting to resist the relative movement thereby absorbing energy.
    Type: Application
    Filed: October 29, 2012
    Publication date: September 11, 2014
    Inventors: Owain Jones, Karl Jones
  • Patent number: 8800715
    Abstract: A retractable fall arrest device comprises a unit housing, a spring sub-assembly, a brake/clutch sub-assembly, and a drum assembly. The spring and brake/clutch sub-assemblies each include shaft portions which extend into the housing and are removably connected together or to the drum assembly, and support the drum assembly in the housing. The spring and brake/clutch assembly are themselves removably connected to the unit housing. Finally, the unit housing comprises two wall members (i.e., clam shells) which are removably connected together. This fall arrest device allows for replacement of any of the four constituent components of the device in the field, thus reducing the down time between repairs or recertification of a particular fall arrest device.
    Type: Grant
    Filed: November 17, 2011
    Date of Patent: August 12, 2014
    Assignee: Reliance Industries, LLC
    Inventors: Wayne L. Olson, Gary E. Choate
  • Patent number: 8800719
    Abstract: A fall arrest block 10 has a spindle on which a length of lifeline 14 is wound. In normal use, the lifeline (preferably webbing) retracts onto and extends from a drum housing 12, as the workman moves towards and away from a secure point to which the housing is attached. In the event of a fall, an inertia mechanism sensitive to acceleration of the spindle operates to lock a locking mechanism to hold the spindle against further rotation. An energy absorbing link 18 is built into the webbing, close to a hook 16 to which the workman is attached. The energy absorbing link 18 includes a section of lifeline that is stretchable, but non-elastic. The locking mechanism includes a toothed ratchet wheel that is engaged by a pawl in order to lock the spindle rotation. The toothed ratchet wheel is part of a unitary body with the spindle.
    Type: Grant
    Filed: August 11, 2008
    Date of Patent: August 12, 2014
    Assignee: Checkmate Limited
    Inventors: Oliver Auston, Duncan Barrier
  • Patent number: 8757324
    Abstract: There is provided a height rescue apparatus (4) comprising a flexible load element (6) for attachment at end (6a) to a safety line (3). The other end is attached to a flexible elongate element (10) wound on a drum (8) which is part of a speed control means. A flexible harness element (7a) is attached to a bracket (11) and is connected to a harness (2) arrangement. The flexible load element (6) is releasably connected to the bracket (11) and is intended to take the fall loads associated with a user falling. After such a fall the load element is released to allow a controlled descent using the elongate element (10) and the speed control means.
    Type: Grant
    Filed: August 24, 2007
    Date of Patent: June 24, 2014
    Inventors: Julian Elwyn Renton, Peter Thomas Mence Nott
  • Patent number: 8746739
    Abstract: Disclosed is a restraint system for a vehicle, such as a wheeled vehicle, boat, or fixed or rotary winged aircraft. The system includes a control system integrated into the harness and strap of the restraint. This permits crewmembers to lock and unlock the restraint from a body worn control panel. Other auxiliary equipment also be operated from the control panel. In another embodiment, wiring for a communication system is integrated into the harness and strap.
    Type: Grant
    Filed: June 22, 2011
    Date of Patent: June 10, 2014
    Assignee: Carlston Life Support Systems, Inc.
    Inventors: Daniel Meggs, Donald Blackman, Brian Ford, Justin Robinson, M. Elizabeth Bolint
  • Patent number: 8701833
    Abstract: A self-retractable lifeline (“SRL”) having the combination of an active fall arrest braking system and a passive restraint distance limiting mechanism that allows a user to pretension and preset the distance that its cable is capable of paying out. The SRL's cable limiting mechanism includes a pretension assembly, which may include a pair of aligned plates and an actuator that temporarily mobilizes an arbor when the lever is opened. The arbor is affixed to the SRL housing and to an interior of a power spring that rewinds the cable back into the housing when the cable is paid out. The other end of the arbor is in a mechanical relationship to one of the aligned plates that prohibits rotational movement of the arbor when the aligned plates are engaged but allows rotational movement of the arbor when the aligned plates are temporarily disengaged.
    Type: Grant
    Filed: April 22, 2008
    Date of Patent: April 22, 2014
    Assignee: GF Protection Inc.
    Inventors: Edward R. Marquardt, Evan M. Choltco-Devlin
  • Patent number: 8684140
    Abstract: A centrifugal clutch having a rotor, a clutch component, and at least one centrifugal weight movable relative to the rotor. When the rotational speed of the rotor is below a predefined value, the centrifugal weight is in a first position and at a distance from the clutch component so that the rotor can rotate freely relative to the clutch component and, when the rotational speed of the rotor is above a predefined value, the centrifugal weight executes a movement relative to the rotor under a centrifugal force into a second position so that the centrifugal weight produces a mechanical force fit between the rotor and the clutch component. The centrifugal weight has first toothing and the clutch component a second toothing so that the first toothing, above the predefined rotational speed, engages into the second toothing, establishing a form-locking connection between the rotor and the clutch component.
    Type: Grant
    Filed: March 30, 2010
    Date of Patent: April 1, 2014
    Assignee: Skylotec GmbH
    Inventor: Kai Rinklake
  • Patent number: 8612099
    Abstract: An occupant restraint system including a harness coupled to the occupant by surrounding a portion of the occupant, a winding mechanism fixed to the vehicle and configured to operate in a first mode and a second mode, and a flexible linking member having a first end coupled to the harness and a second end coupled to the winding mechanism. The linking member is configured to selectively wind and unwind from the winding mechanism. When the winding mechanism is in the first mode of operation, the linking member may be unwound from the winding mechanism to allow the occupant to move freely about the vehicle. When the winding mechanism is in the second mode of operation, the winding mechanism winds the linking member to pull the harness toward the winding mechanism.
    Type: Grant
    Filed: May 4, 2012
    Date of Patent: December 17, 2013
    Assignee: TK Holdings Inc.
    Inventors: Christopher Joe Kranz, Paul Michael Smith, Nicklaus John Pelliccia
  • Publication number: 20130240298
    Abstract: A fall arrest system adapted for use in construction projects with wall studs of various spacing. The fall arrest system comprises a wall attachment bracket and a retractable harness line system, which provides extension, retraction, and storage of a harness line. The harness line is connected to a user-worn harness to protect the user from falling.
    Type: Application
    Filed: March 13, 2013
    Publication date: September 19, 2013
    Applicant: BMC
    Inventors: DENNIS NAYLOR, Rick Angus
  • Patent number: 8499890
    Abstract: A personal escape device which can be used by men, women, and children, including physically disabled persons, to descend in a controlled and secure manner from high structures such as office buildings, multistory homes, and the like. The device is designed for a relatively low-cost, small size which may be used by payloads of variable weights. The rescue device of the invention may be a single-use device or a multi-use device.
    Type: Grant
    Filed: January 15, 2010
    Date of Patent: August 6, 2013
    Assignee: Rescue Reel, LLC
    Inventors: Kevin R. Stone, Michael Strasser, Thomas King, Imraan Aziz
  • Patent number: 8490750
    Abstract: A lifeline system includes a lifeline and a hub around which the lifeline is coiled. The hub deforms to absorb energy at a predetermined level of force exerted thereon by the lifeline. For example, the hub can be deformable to absorb energy so that a peak fall arrest force in a drop test of the lifeline system with a 220 pound mass attached to the lifeline over a distance of up to 6.56 feet is not more than 1900 pounds. In several embodiments, the peak fall arrest force is no more than 1500 pounds or no more than 1349 pounds.
    Type: Grant
    Filed: February 24, 2009
    Date of Patent: July 23, 2013
    Assignee: Honeywell International Inc.
    Inventors: Ross Balquist, Thomas W. Parker
  • Patent number: 8479883
    Abstract: An improved rappelling system for raising or lowering a person or an object to or from a stationary or moving elevated point includes at least one cable for supporting a person or an object, a motor attached to the elevated point and coupled to the cable so that the motor propels the cable up or down and thereby raises or lower the person or object, respectively, a controller/processor for controlling the motion of the motor and at least one sensor attached to the elevated point and coupled to the controller/processor. The sensor measures the distance of the elevated point from a target area located at a lower point than the elevated point and continuously sends a feedback signal to the controller/processor. The feedback signal is used to calculate and adjust in real-time motor control parameters that determine speed and landing location of the person or object relative to the target area.
    Type: Grant
    Filed: August 18, 2009
    Date of Patent: July 9, 2013
    Inventor: Tengiz Tkebuchava
  • Patent number: 8479885
    Abstract: A belay device for protecting a climber on a rope from a fall has a powered winding reel to which the rope is attached. A control mechanism acts to prevent slack in the rope between the climber and the winding reel and includes load sensor that which, on detecting the weight of the climber on the rope, switches the operation of the device to a fall or descent mode where the winding reel is stopped and the climber is suspended by the rope. An electronic control and diagnostic system monitors the operation of the winding reel and switches its operation to a safe, fault mode when a fault is detected.
    Type: Grant
    Filed: May 23, 2012
    Date of Patent: July 9, 2013
    Assignee: Limpet Holdings (U.K.) Limited
    Inventor: David Kennedy Taylor
  • Patent number: 8413763
    Abstract: A rescue line apparatus is configured as a horizontal tether for being readily connected between a door and a portion of the door jamb or other entry location and extending a line as the user moves within the structure. The device allows the user to readily locate their way back for egressing the structure, and can be readily disengaged by the user, which activates a braking system that prevents unit “run-away”. A multi-attach anchor head couples the far end of the line to any desired structure, and has a beacon assembly which outputs a light pattern of sufficient brightness to be seen by the user when visually locating their attachment point within the structure. A multi-element visual indicator is configured for indicating line extension distance, and displaying tether line status. Many options promote safety and a fully cooperative environment.
    Type: Grant
    Filed: March 24, 2010
    Date of Patent: April 9, 2013
    Assignee: Rescue Products, Inc.
    Inventors: Ronald William Hermann, Andrew Hudson, Caralin Adair
  • Publication number: 20130068561
    Abstract: A self-rescue system and a method for providing self-rescue to fall-victims suspended in fall-arresting safety harnesses following an accidental fall enables such suspended fall victims to descend to the ground or other place of safety at a controlled, safe velocity, without assistance from anyone else. In addition, the invention can also address applications in many types of elevated locations where a controlled descent is needed in order to escape emergency conditions.
    Type: Application
    Filed: November 14, 2012
    Publication date: March 21, 2013
    Inventor: Rano J. HARRIS, JR.
  • Publication number: 20120325586
    Abstract: Disclosed is a restraint system for a vehicle, such as a wheeled vehicle, boat, or fixed or rotary winged aircraft. The system includes a control system integrated into the harness and strap of the restraint. This permits crewmembers to lock and unlock the restraint from a body worn control panel. Other auxiliary equipment also be operated from the control panel. In another embodiment, wiring for a communication system is integrated into the harness and strap.
    Type: Application
    Filed: June 22, 2011
    Publication date: December 27, 2012
    Applicant: CONAX FLORIDA CORPORATION
    Inventors: Daniel Meggs, Don Blackman, Brian Ford, Justin Robinson
  • Patent number: 8325053
    Abstract: Apparatus for monitoring compliance with the 100% tied off rule for climbers using personal fall protection equipment. The personal fall protection monitoring system includes a remote monitoring module that monitors multiple harness systems. Each harness system includes sensors that detect the engagement of the lanyard with anchorage points and the harness. The system also includes a harness module that monitors the sensors and indicates an alarm condition to the climber and to the remote monitoring module. The harness module includes a transmitter that communicates with the remote monitoring module. The remote monitoring module communicates with multiple harness systems to indicate and log the status of each harness system.
    Type: Grant
    Filed: March 10, 2010
    Date of Patent: December 4, 2012
    Assignee: JCJ Inc.
    Inventors: William N. Flynt, Shawn A. Remington, Jacob M. Martin, Timothy Vile
  • Publication number: 20120267198
    Abstract: A personal safety device for controlled-rate descent of a person from a building may include a cable control assembly having a frame attachable to the building. A cable may be wound on a cable reel. The cable reel may be configured for rotation within the frame. A weight setting control may be configured to vary a weight at which a predetermined rate of descent of a person supported on the cable will occur, whereby a user of the device can set his or her weight on the weight setting control and employ the device to descend from a building at the predetermined rate.
    Type: Application
    Filed: October 26, 2011
    Publication date: October 25, 2012
    Inventor: ROY CHOWTHI
  • Patent number: 8276712
    Abstract: A system includes a support including an extending rigid member and a first attachment at a first position on the rigid member to which a first self-retracting lifeline is attached. The first self-retracing lifeline includes a first housing from which a first lifeline exits. The first housing is movable relative to the rigid member. The system also includes at least a second attachment at a second position on the rigid member to which a second self-retracing lifeline. The second self-retracting lifeline includes a second housing from which a second lifeline exits. The second housing is movable relative to the rigid member independent of the movement of the first housing. The first position is spaced from the second position. The system further includes a connector attached to the frame to connect the frame to an article (for example, a safety harness such as a full body safety harness) worn by a user.
    Type: Grant
    Filed: February 24, 2009
    Date of Patent: October 2, 2012
    Assignee: Honeywell International Inc.
    Inventors: Hugh Smith, Douglas Mercier, Ross Balquist, Brian Montgomery, Thomas W. Parker, Preston L. Anderson
  • Publication number: 20120228062
    Abstract: A belay device for protecting a climber on a rope from a fall has a powered winding reel to which the rope is attached. A control mechanism acts to prevent slack in the rope between the climber and the winding reel and includes load sensor that which, on detecting the weight of the climber on the rope, switches the operation of the device to a fall or descent mode where the winding reel is stopped and the climber is suspended by the rope. An electronic control and diagnostic system monitors the operation of the winding reel and switches its operation to a safe, fault mode when a fault is detected.
    Type: Application
    Filed: May 23, 2012
    Publication date: September 13, 2012
    Applicant: Limpet Holdings (UK) Limited
    Inventor: David Kennedy Taylor
  • Patent number: 8245817
    Abstract: A self-rescue device includes a rope operatively connected to a lifeline connector. The lifeline connector is releasably operatively connected to a frame member of the self-rescue device, and should a fall occur, the user releases the lifeline connector from the frame member. A centrifugal braking mechanism controls the rate at which the rope is paid out, which controls the rate of the user's descent.
    Type: Grant
    Filed: July 29, 2009
    Date of Patent: August 21, 2012
    Assignee: D B Industries, Inc.
    Inventor: Scott C. Casebolt
  • Publication number: 20120193168
    Abstract: According to one or more aspects, a portable safety device operable to be deployed adjacent to a work surface. The portable safety device may include a rail and a locking device disposed with the rail and operable to secure the rail to the work surface. According to one or more aspects or embodiments, the device may include a signal member operationally connected to the rail to provide a visual indicator that the rail is secured to the work surface.
    Type: Application
    Filed: January 23, 2012
    Publication date: August 2, 2012
    Inventors: David Taylor, Rick Kilpatrick, David Wilbanks
  • Patent number: 8205718
    Abstract: A belay device for protecting a climber on a rope from a fall has a powered winding reel to which the rope is attached. A control mechanism acts to prevent slack in the rope between the climber and the winding reel and includes load sensor that which, on detecting the weight of the climber on the rope, switches the operation of the device to a fall or descent mode where the winding reel is stopped and the climber is suspended by the rope. An electronic control and diagnostic system monitors the operation of the winding reel and switches its operation to a safe, fault mode when a fault is detected.
    Type: Grant
    Filed: April 19, 2006
    Date of Patent: June 26, 2012
    Assignee: Limpet Holdings (U.K.) Limited
    Inventor: David Kennedy Taylor
  • Publication number: 20120145481
    Abstract: A safety device, such as a safety block, for use in a fall arrest system, has an exit arrangement for the safety line exiting the device; the exit arrangement being arranged to permit the safety line to exit the device over a range of different exit positions. The exit arrangement may be in the form of an elongate slot. When the safety line rewinds into the line drum, the position at which the line exits the slot may move along the slot.
    Type: Application
    Filed: February 18, 2010
    Publication date: June 14, 2012
    Applicant: Latchways Plc
    Inventor: Owain Jones
  • Patent number: 8167090
    Abstract: An apparatus is disclosed for safely lowering a user from a structure. The apparatus includes a frame; a spool including a cable rotatably mounted on the frame; a securing device attached to the cable and adapted to securely attached to the structure; a user support adapted to support the user and securely attached to the frame; and a pair of centrifugal hydraulic brake systems adapted to slow a rotation of the spool to cause the user support, spool and frame to descend at a safe rate for the user. In another embodiment, the apparatus includes a frame; a spool including a cable rotatably mounted on the frame; a securing device attached to the frame and adapted to securely attached to the structure; a user support adapted to support the user and attached to the cable; and a pair of centrifugal hydraulic brake systems adapted to slow a rotation of the spool to cause the user support to descend at a safe rate for the user.
    Type: Grant
    Filed: September 14, 2010
    Date of Patent: May 1, 2012
    Inventor: Ralph L. Michael
  • Publication number: 20120073904
    Abstract: An improved fall protection system has been developed. The system functions by: (1) arresting the fall of such users, thereby protecting them from impact with the ground which could cause serious injury or death; (2) providing a method of recovery and escape from a fall-arresting device by providing a user with a controlled descent back to the ground or to a lower place of safety at a safe and gradual rate of descent; (3) providing greater simplicity and wearer comfort in fall-arresting and self-recovery devices; and (4) incorporating gear storage capability into such protective devices, in order to eliminate the need to wear a separate gear storage pack, vest, tool belt, or other such garment or accessory.
    Type: Application
    Filed: November 21, 2011
    Publication date: March 29, 2012
    Inventor: Rano J. HARRIS, JR.
  • Publication number: 20120061183
    Abstract: An apparatus is disclosed for safely lowering a user from a structure. The apparatus includes a frame; a spool including a cable rotatably mounted on the frame; a securing device attached to the cable and adapted to securely attached to the structure; a user support adapted to support the user and securely attached to the frame; and a pair of centrifugal hydraulic brake systems adapted to slow a rotation of the spool to cause the user support, spool and frame to descend at a safe rate for the user. In another embodiment, the apparatus includes a frame; a spool including a cable rotatably mounted on the frame; a securing device attached to the frame and adapted to securely attached to the structure; a user support adapted to support the user and attached to the cable; and a pair of centrifugal hydraulic brake systems adapted to slow a rotation of the spool to cause the user support to descend at a safe rate for the user.
    Type: Application
    Filed: September 14, 2010
    Publication date: March 15, 2012
    Inventor: Ralph L. Michael
  • Publication number: 20120055740
    Abstract: An eddy-current braking mechanism including a rotor, rotatable about a rotor axis; at least one electrically conductive member coupled to the rotor for rotation therewith; at least one magnet configured to apply a magnetic field extending at least partially orthogonal to the plane of rotation of the conductive member, and characterised in that upon rotation of the rotor, the conductive member is configured to move at least partially radially from the rotor axis into the applied magnetic field.
    Type: Application
    Filed: January 29, 2010
    Publication date: March 8, 2012
    Applicant: Holmes Solutions Limited
    Inventors: Christopher James Allington, Andrew Karl Diehl, Bruce John Robertson
  • Publication number: 20110315482
    Abstract: Herein is disclosed a preassembled and pretorqued friction brake comprising at least a pressure plate, a ratchet ring, a friction ring, and a backing plate.
    Type: Application
    Filed: June 23, 2010
    Publication date: December 29, 2011
    Inventors: Stephen Griffiths, Kurt D. Dietrich
  • Publication number: 20110315483
    Abstract: Herein are disclosed fall-protection safety devices comprising a load-bearing housing comprised of a composite polymeric material, and also comprising a load-bearing anchorage plate connected to the load-bearing housing by at least one load-bearing connector.
    Type: Application
    Filed: June 23, 2010
    Publication date: December 29, 2011
    Inventors: Stephen Griffiths, Kurt D. Dietrich
  • Publication number: 20110315481
    Abstract: Herein is disclosed a centrifugally-operated apparatus that comprises at least a shaft with an axis of rotation and a pawl that is coaxially mounted on the shaft with at least a portion of the pawl being movable radially inwardly and outwardly from the shaft. The axis of rotation of the shaft passes through the pawl, at a location that is radially offset from the center of mass of the pawl. Rotation of the shaft and pawl above a predetermined speed can cause at least the movable portion of the pawl to be moved radially outward from the shaft, in which position an engaging end of the movable portion of the pawl may engage with a component such as a ratchet.
    Type: Application
    Filed: June 23, 2010
    Publication date: December 29, 2011
    Inventors: Stephen Griffiths, Kurt D. Dietrich
  • Patent number: 8061483
    Abstract: A windage brake for a fan descender comprises a rotatable spool connected by drive belts to a fan comprising a radial flow air impeller. A line is wound helically upon the spool. A user of the fan descender puts on a harness (not shown) at the free end of the line and jumps from an elevated position. The line is thereby drawn off the spool and rotates it. The rotating spool drives the fan and also winds a power spring formed by a resilient strip. The windage of the fan regulates the descent of the jumper, the fan being accelerated to a speed at which the braking force is such that the jumper descends at a rate safe for landing on the ground. When the jumper is on the ground, he removes the harness and releases the free end of the line. The line is then automatically retrieved by the power spring and rewound on the spool.
    Type: Grant
    Filed: March 20, 2007
    Date of Patent: November 22, 2011
    Assignee: Drop Zone UK Limited
    Inventor: Nicholas Moriarty
  • Publication number: 20110278095
    Abstract: A fall protection arrangement including a rotatable hub and a lifeline having a first end attached to the hub and a second end for removable attachment to a user, an engagement mechanism to prevent rotation of the hub upon activation, and a braking arrangement to brake the payout of the lifeline during a fall event.
    Type: Application
    Filed: May 9, 2011
    Publication date: November 17, 2011
    Inventors: Mitchell H. Hetrich, David J. Losos
  • Publication number: 20110220436
    Abstract: A fall protection system comprising a line wound onto a rotatable pulley having a centrifugal clutch which activates a gearbox which in turn drives an input shaft of a hydraulic actuator whereby the hydraulic actuator controls the rate of rotation of the pulley, and a secondary brake which slows the rotational speed of the pulley should it exceed a predetermined speed, whereby in use, the line is attached to a user to restrain a fall and then the system facilitates unwinding of the line at a controlled speed to effect descent.
    Type: Application
    Filed: September 18, 2009
    Publication date: September 15, 2011
    Inventor: Stephen Green
  • Publication number: 20110174575
    Abstract: Lifeline systems include a worker harness hooked and slideable along a cable attached to a ratchet mechanism and extending between posts, through stand off pipes, or the like and generally parallel to, but spaced from, sides of a tank. The lifeline system utilizes supports which can be removably attached to the reinforcement rib or the cantilevered edge of the tank. The supports can include fastening rings to connect to braces, stabilizers or the ratchet mechanism. The reinforcement rib is received in an omega shaped channel and sandwiched by a clamp located on the first side and moveable relative to a second side of the channel. The cantilevered edge is received between upper and lower plates extending in openings of C-shaped sides in a spaced, angled relation and is sandwiched by a fastener threadably received in the upper plate.
    Type: Application
    Filed: January 11, 2011
    Publication date: July 21, 2011
    Inventors: James G. Sidla, Sam Linhoff
  • Publication number: 20110147125
    Abstract: A fall protection safety device including a braking mechanism comprises a first component, a second component configured and arranged to move relative to the first component, and at least one magnet operatively connected to one of the components and another of the components being at least partially made of a non-ferromagnetic and electrically conductive material. The at least one magnet and the non-ferromagnetic and electrically conductive material creating an electromagnetic field force when the second component moves at a rate greater than a predetermined rate relative to the first component.
    Type: Application
    Filed: December 23, 2010
    Publication date: June 23, 2011
    Applicant: D B INDUSTRIES, INC.
    Inventor: John P. Blomberg
  • Publication number: 20110147124
    Abstract: Regulating apparatus for a descender comprises a spool 40, a line 48 wound upon the spool 40 to be drawn off during a descent and a fan 44 or similar brake operative upon the spool to limit its speed of forward rotation and hence the rate of descent. The inertial retarding effect of the moment of inertia of the spool 40 is overcome by an electric motor 42 arranged to accelerate the spool 40 during an initial part of the descent. A free-wheeling tether 50 for the line 48 prevents overrun of the spool 40 from picking up the line 48 at the end of a descent. The motor 42 may be run in reverse to rewind the line 48 after a descent.
    Type: Application
    Filed: June 23, 2010
    Publication date: June 23, 2011
    Inventors: Nicholas Moriarty, Matthew John Shaylor
  • Patent number: 7946387
    Abstract: A self-retracting lifeline includes a common, central brake hub having teeth on opposing sides and a lifeline assembly on each side of the brake hub. The lifeline assemblies include centrifugal clutch assemblies with pawls. The pawls are configured and arranged to engage the teeth of the brake hub to stop the lifeline assemblies when there is a sudden acceleration or a high rate of speed at which the lifeline assemblies turn to pay-out lifeline which causes the pawls to pivot and engage the teeth. The self-retracting lifeline may be operatively connected to a safety harness with a connector interconnecting the bottom of the self-retracting lifeline and the straps of the safety harness proximate a dorsal pad assembly and straps interconnecting the housing of the self-retracting lifeline and the straps of the safety harness above the dorsal pad assembly. The lifelines of the self-retracting lifeline exit the housing proximate the top.
    Type: Grant
    Filed: January 2, 2007
    Date of Patent: May 24, 2011
    Assignee: D B Industries, Inc.
    Inventors: Travis P Betcher, Matthew J. Blackford
  • Publication number: 20110088976
    Abstract: A speed responsive engagement device comprises: a wheel arranged for rotation about a first axis and having a plurality of outwardly projecting spaced apart teeth with each pair of adjacent teeth being separated by a circumferential surface with a constant radius; a pawl arranged for pivotal movement about a second axis between a first unengaged position and a second engaged position in which the pawl engages one of said teeth and contacts a circumferential surface; and a resilient means arranged to urge said pawl towards the first position when the pawl is not in contact with a circumferential surface. When the wheel rotates in a first direction each tooth contacts the pawl, generating an oscillating movement of the pawl from the first position towards the second position with an amplitude dependent on the speed of the rotation.
    Type: Application
    Filed: July 13, 2007
    Publication date: April 21, 2011
    Applicant: LATCHWAYS PLC
    Inventors: Karl Jones, David Crowley
  • Publication number: 20110067956
    Abstract: A personal, lightweight, high altitude rappel escape safety device is worn by an individual as a backpack and provides a safe means of lowering the individual from an elevated structure. The device comprises a structural body containing a mechanical device for slowly releasing a high strength cable. One end of the cable is secured to the structure prior to the user descending from the structure. The cable is released from a spool located inside the body and makes a circuitous path though a frictional structure. The structure contains baffles through which the cable extends. The friction caused by the pattern of release of the cable generates sufficient drag to safely lower a person from any altitude in a structure to the ground. The rate of descent may be adjusted via a braking mechanism.
    Type: Application
    Filed: November 22, 2006
    Publication date: March 24, 2011
    Inventor: Byung-Sun Hwang
  • Publication number: 20110005865
    Abstract: An apparatus for facilitating a controlled descent of a body is disclosed. The apparatus includes a rotatable reel around which a portion of a cable is wound, a first end of the cable secured to the reel and a second end of the cable free; a friction drum around which a portion of the cable, is wound; a carrier on which the reel and the drum are mounted, a braking mechanism for braking rotational motion of the reel and for balancing descending speed of the body; a harness, for harnessing the device to the body; and a damping mechanism for damping the initial impact.
    Type: Application
    Filed: March 25, 2009
    Publication date: January 13, 2011
    Inventors: Alon Tavori, Ephraim Vadai, Gideon Hirschfeld
  • Publication number: 20100282541
    Abstract: There is provided a height rescue apparatus (4) comprising a flexible load element (6) for attachment at end (6a) to a safety line (3). The other end is attached to a flexible elongate element (10) wound on a drum (8) which is part of a speed control means. A flexible harness element (7a) is attached to a bracket (11) and is connected to a harness (2) arrangement. The flexible load element (6) is releasably connected to the bracket (11) and is intended to take the fall loads associated with a user falling. After such a fall the load element is released to allow a controlled descent using the elongate element (10) and the speed control means.
    Type: Application
    Filed: August 24, 2007
    Publication date: November 11, 2010
    Inventors: Julian Elwyn Renton, Peter Thomas Mence Nott
  • Publication number: 20100252365
    Abstract: A personnel transfer device, of the type commonly used in offshore oil and gas operations, has a means for lowering personnel from the personnel transfer device in a controlled manner, with the personnel transfer device in an elevated position. In one embodiment, the personnel transfer device has an automatic descender device fixed thereto. Such personnel transfer devices are typically lifted by cranes mounted on offshore platforms or drilling rigs, and move personnel from elevated positions on the platform or drilling rig to and from the decks of boats. In the event of a crane failure during the personnel transfer procedure, resulting in the personnel transfer device suspended in the air in an elevated position, personnel that are in the personnel transfer device can use the automatic descender to safely lower themselves from the elevated personnel transfer device to a waiting boat, the water's surface, etc.
    Type: Application
    Filed: March 30, 2010
    Publication date: October 7, 2010
    Inventors: Christian W. Feller, Jack C. Broussard, JR.
  • Publication number: 20100236867
    Abstract: A rotational energy absorber typically for use in a fall arrest system has a coiler, a length of plastically deformable strip and a deformer structure. The plastically deformable strip has a first end attached to the coiler and a second free end and extends past the deformer structure at a position between the first and second ends. Relative rotation of the coiler member and deformer structure causes the strip to be drawn past the deformer structure, plastically deforming the strip and winding the strip coil form about the coiler member.
    Type: Application
    Filed: October 12, 2007
    Publication date: September 23, 2010
    Inventors: Karl Jones, Owain Jones
  • Publication number: 20100224448
    Abstract: A safety device with fall arrest and descending modes includes a housing, a drum, a lifeline, first and second brake assemblies, and a control. The drum is rotatably operatively connected to the housing. The lifeline has an intermediate portion interconnecting a first end and a second end. The first end is operatively connected to the drum. The first and second assemblies are operatively connected to the drum. The control is operatively connected to the first and second brake assemblies and has a first position and a second position. The first position selectively engages the first brake assembly in a descending mode and the second position selectively engages the second brake assembly in a fall arrest mode.
    Type: Application
    Filed: November 18, 2009
    Publication date: September 9, 2010
    Inventors: J. Thomas Wolner, Scott C. Casebolt, Gabriel Grant Gamache, Matthew J. Blackford, Vincent G. Meillet, Joseph Robert Kaiser