Pole Or Strand Grasping-type Climber Patents (Class 182/133)
  • Patent number: 7086502
    Abstract: A transport apparatus for transporting materials or objects on substantially vertical structures for installation, deployment, inspection and repair purposes includes gripping mechanisms having a conformable gripping portion. The gripping mechanisms are separated by links, which are mutually attached to each other to permit angular rotation of the links relative to each other about a pivot point. A latching mechanism provides the capability for the gripping portion to be opened as well as secured for operation.
    Type: Grant
    Filed: February 24, 2004
    Date of Patent: August 8, 2006
    Assignee: Palo Alto Research Center Incorporated
    Inventors: Mark H. Yim, Kimon D. Roufas, Craig Eldershaw
  • Patent number: 7073628
    Abstract: The device for climbing a pair of ropes (1) includes upper and lower clasps (4,6) for clamping each rope and connecting elements for holding a climber, which include a movable or solid seat (7, 12) or harness (23). Each clasp (4,6) has a housing (21); a yoke (3) in the housing (21) provided with an interior space having beveled inclines widening downward; cotters (10) positioned on opposite sides of the rope (1) in the interior space; rollers (11) arranged movably, but securably, between the cotters (10) and the beveled inclines; a compression spring (20) bearing on an upper end of the yoke (3); and a resilient time servo-component (9) arranged at a lower end of the yoke. The resilient time servo-component (9) acts on the yoke so that the clasp (4,6), when relieved, automatically clamps the rope after a predetermined time interval, thus protecting the climber.
    Type: Grant
    Filed: February 10, 2004
    Date of Patent: July 11, 2006
    Assignee: Schmidt Innovation
    Inventor: Siegfried Schmidt
  • Patent number: 7014594
    Abstract: Ladder climbing safety system for use with a trapeze set-up and which is separate and apart from the usual trapeze safety system. The ladder climbing safety system is arranged to engage a safety belt worn by the trapeze artist to prevent the person from falling when climbing the ladder while the trapeze safety system is arranged to engage the safety belt of another person to prevent the other person from impacting the ground while performing a trapeze routine. The ladder climbing safety system includes an ascending rope arranged proximate the ladder, an ascender attachable to the ascending rope and a coupling arrangement for releasably connecting the ascender to the safety belt of the person climbing the ladder.
    Type: Grant
    Filed: May 19, 2003
    Date of Patent: March 21, 2006
    Inventor: Matthew H. Stoltz
  • Patent number: 6981571
    Abstract: An apparatus and methods of use for a climber catcher safety device having the ability to securely engage the pole so that the safety device can hold or otherwise support a body belt attached to the fallen technician. In various embodiments, the safety device includes a flexible, elongated body comprising a first end and a second end, positioning mechanism attached at the first end, and engagement mechanism attached at the second end.
    Type: Grant
    Filed: August 30, 2003
    Date of Patent: January 3, 2006
    Inventor: Frederick James Diggle
  • Patent number: 6973995
    Abstract: A support device secures a technician to a pole during elevated line work. The support device may be integrated with a safety strap to keep the technician from falling if the gaffs of the technician cut out from the pole.
    Type: Grant
    Filed: August 22, 2003
    Date of Patent: December 13, 2005
    Assignee: BellSouth Intellectual Property Corp.
    Inventors: Frederick James Diggle III, Paul Brent Rivers, Robert Clint Hogeland
  • Patent number: 6902032
    Abstract: This invention provides apparatus and methods of use for a technician catcher safety device having the means to securely engage the pole so that the safety device can hold or otherwise support a safety strap attached to the fallen technician. In various embodiments, the safety device includes a pair of main lever arms interconnected by a central connecting portion. The ends of the main lever arms include elbows that merge into upwardly extending arms.
    Type: Grant
    Filed: June 30, 2003
    Date of Patent: June 7, 2005
    Assignee: BellSouth Intellectual Property Corporation
    Inventors: Frederick James Diggle, Edward Alvin Brazier
  • Patent number: 6896101
    Abstract: A climbing device is configured to have a locking mechanism operative to allow the handle and the footplate of the climbing device to pivot to and engage a portion of building structure in a position, in which further displacement of the footplate and handle relative to one another is arrested to lock the portion between the jaws of the device.
    Type: Grant
    Filed: August 8, 2003
    Date of Patent: May 24, 2005
    Assignee: Lou Done, LLC
    Inventor: Louis J. Cowin
  • Patent number: 6868943
    Abstract: A safety device for a bosun's chair includes means for movably attaching the bosun's chair to a mast and means for braking the bosun's chair relative to the mast.
    Type: Grant
    Filed: February 13, 2002
    Date of Patent: March 22, 2005
    Inventor: Henry VanAcker, Jr.
  • Patent number: 6793258
    Abstract: A device and method for gripping a handrail or other object having a top and a bottom surface. The device includes a handle for gripping by a user. A fixed member is coupled to the handle for engaging one of the top and bottom surfaces of the handrail, and a movable member is movably coupled to the handle for engaging the other of the top and bottom surfaces of the handrail. An actuator coupled to the handle controls the movement of the movable member, the actuator allowing for repositioning and locking of the device with respect to the handrail. When the device is locked with respect to the handrail the fixed member and movable member engage the top and bottom surfaces of the handrail such that a force tangential to the handrail can be applied to the handle without the device sliding on the handrail.
    Type: Grant
    Filed: March 19, 2002
    Date of Patent: September 21, 2004
    Assignee: DEKA Products Limited Partnership
    Inventor: Larry B. Gray
  • Patent number: 6782973
    Abstract: The device for climbing a pair of ropes (1) includes releasable upper and lower clasps (4,6) for each rope that clamp in response to a downward force acting thereon but relieve when the downward force is relieved and connecting elements for holding a climber, including a seat (7, 12) or harness (23), Each releasable clasp (4,6) has a housing (21); a yoke (3) in the housing (21) provided with an interior space having beveled inclines widening downward; cotters (10) positioned on opposite sides of the rope (1) in the inner space; rollers (11) arranged movably, but securably, between the cotters (10) and the beveled inclines; a compression spring (20) bearing on an upper end of the yoke (3); and a time servo-component (9) arranged at a lower end of the yoke. The time servo-components (9) act on the yokes so that the clasps (4,6), when relieved, automatically clamp the ropes again after a predetermined time interval.
    Type: Grant
    Filed: September 10, 2001
    Date of Patent: August 31, 2004
    Assignee: Schmidt Innovation
    Inventor: Siegfried Schmidt
  • Publication number: 20040154866
    Abstract: The device for climbing a pair of roses (1) includes upper and lower clasps (4,6) for clamping each rope and connecting elements for holding a climber. which include a movable or solid seat (7, 12) or harness (23). Each clasp (4,6) has a housing (21); a yoke (3) in the housing (21) provided with an interior space having beveled inclines widening downward; cotters (10) positioned on opposite sides of the rope (1) in the interior space; rollers (11) arranged movably, but securably, between the cotters (10) and the beveled inclines; a compression spring (20) bearing on an upper end of the yoke (3); and a resilient time servo-component (9) arranged at a lower end of the yoke. The resilient time servo-component (9) acts on the yoke so that the clasp (4,6), when relieved, automatically clamps the rope after a predetermined time interval, thus protecting the climber.
    Type: Application
    Filed: February 10, 2004
    Publication date: August 12, 2004
    Inventor: Siegfried Schmidt
  • Patent number: 6752242
    Abstract: A wood pole fall protection device for line technicians and pole climbers that allows travel up and down a wooden pole without incurring a fall or injury. The wood pole fall protection device is also designed to provide the line technician with the ability to rotate or twist in the straps as well as negotiate and maneuver around obstacles and obstructions encountered upon the pole.
    Type: Grant
    Filed: January 21, 2003
    Date of Patent: June 22, 2004
    Assignee: Buckingham Manufacturing Co., Inc.
    Inventors: Robert Whitehead, John Matias
  • Patent number: 6715585
    Abstract: A tree stand has a platform and seat portion that are used together. The two portions are very similar and differ in that the platform has a grid on which a hunter can stand, and the seat portion has a sling in which the hunter can sit. Both portions have a frame with an upstanding post. A cable extends from one side of the frame across to the opposite side of the post and circles a tree, crosses the other side of the post and is attached to the opposite side of the frame. This results in a criss-crossed line that both securely attaches each portion to the tree and is easy to set up by a single hunter.
    Type: Grant
    Filed: September 12, 2001
    Date of Patent: April 6, 2004
    Inventor: Anthony D. Overbaugh
  • Patent number: 6619432
    Abstract: A cable transport apparatus (1) has a first rotational axis (20a, 20c) and a second rotational axis (20b, 20d) that are not in parallel but cross each other with a predetermined angle therebetween. In this way, a V-shaped space is formed between transport belts (40a, 40b). The cable transport apparatus (1) can thus transport a thin cable (100) being in contact with the lower part of the V-shaped space and transport a thick cable (200) being in contact with the upper part thereof. Even if cables to be transported have respective successively increasing diameters, such cables can be transported using the same apparatus. Further, the cables never escape from the cable transport apparatus and can be transported without lowering the transport speed of the cables.
    Type: Grant
    Filed: January 9, 2001
    Date of Patent: September 16, 2003
    Inventor: Takako Yasui
  • Publication number: 20020092705
    Abstract: The shape of the hand tool invention and the application of reverse pressure on the pole when downward pressure is applied to the handgrip represents an innovative improvement in climbing utility (telephone) poles. The technical disclosure includes the shape of the hand tool and the application of using a hand tool tom assist in climbing poles. The pole-climbing hand tool is a new approach in climbing utility (telephone) poles.
    Type: Application
    Filed: December 4, 2000
    Publication date: July 18, 2002
    Inventor: Ronald Ray Goad
  • Publication number: 20020084142
    Abstract: A guide rail system is used to erect towers, to place equipment on towers and for maintenance of towers. The guide rail may be added to existing towers. a climbing lifting platform is attached to the guide rails and is used to transport items up and down the tower. The platform may also be used to carry up tower sections during erection of the tower.
    Type: Application
    Filed: February 26, 2002
    Publication date: July 4, 2002
    Inventors: Donald D. Brennan, Brent R. Leisening, Carl W. Diedrich, George M. Burkhart, Ralph Douglas Fredrickson
  • Patent number: 6412602
    Abstract: The invention relates to a motor-driven (22) climbing device (1) which, with the aid of a motor-driven winch (14) and a conventional rope lock (4), allows comfortable ascent along a rope (2), the safety factor with regard to fall prevention being maintained.
    Type: Grant
    Filed: June 14, 2000
    Date of Patent: July 2, 2002
    Assignee: Act Safe Systems AB
    Inventor: Peter Sundman
  • Patent number: 6382356
    Abstract: The man lift apparatus comprises a handle secured to first and second arms which extend around an upright pole-type support for supporting a user at a selected position upon the upright pole-type support. When the handle is positioned substantially parallel to the upright pole-type support, the man lift apparatus may be removed, adjusted, raised or lowered upon the upright support. The user places the lift apparatus about the upright support, and moves the handle to a position which places a camming plate against the front side of the vertical support, with the second arm extending in an upward incline from the handle. The first arm extends in a first direction from the handle to engage a portion of a first side of the vertical support. The second arm extends in the opposite direction from the handle to engage the second side, back, and a portion of the first side of the vertical support.
    Type: Grant
    Filed: March 26, 2001
    Date of Patent: May 7, 2002
    Inventors: Frank P. Skinner, Shelmon G. Holmes
  • Patent number: 6382355
    Abstract: A climbing appliance (1) for roping persons up and down using the double rope technique is proposed, which comprises a housing (12) and a clamping jaw (13) mounted pivotally in the housing, wherein a main rope (2) conveyed over an upper reversing point (3) is fastened by its one end (2a) to the housing (12) and is passed by its other end (2b) through a recess (17, 18) between housing (12) and clamping jaw (13) and is movable inside the recess (17, 18) into a clamping position and a release position. The climbing appliance further including a fastening point (21) for a connection rope (8) between the climbing appliance (1) and the person roping up or down provided off center in the outside edge region of the housing (12), that the pivot of the clamping jaw (13) is disposed substantially centrosymmetrically, and that a release rope (10) is fastened to the opposite outside edge region of the housing (12) to the fastening point (21) for the connection rope (8).
    Type: Grant
    Filed: March 13, 2001
    Date of Patent: May 7, 2002
    Inventor: Hubert Kowalewski
  • Patent number: 6357549
    Abstract: A guide rail system is used to erect towers, to place equipment on towers and for maintenance of towers. The guide rail may be added to existing towers, a climbing lifting platform is attached to the guide rails and is used to transport items up and down the tower. The platform may also be used to carry up tower sections during erection of the tower.
    Type: Grant
    Filed: June 2, 2000
    Date of Patent: March 19, 2002
    Assignees: D. H. Blattner & Sons, Inc., Elgood Mayo Corp.
    Inventors: Donald D. Brennan, Brent R. Leisening, Carl W. Diedrich, George M. Burkhart, Ralph Douglas Fredrickson
  • Patent number: 6241045
    Abstract: A novel fall protection apparatus is described wherein a worker can climb a pole, while maneuvering about the pole as he climbs. This structure enables the worker to both ascend and descend, but be protected upon an accidental fall from the pole. In particular, the arrangement prevents the worker from falling more than a couple of feet, and at the same time holds the worker away from the pole by an amount sufficient to prevent injuries caused by banging into the pole. This structure is especially beneficial in training new workers to climb poles for work, as well as requalifying previously trained workers.
    Type: Grant
    Filed: November 12, 1999
    Date of Patent: June 5, 2001
    Inventors: Robert E. Reeve, Steven E. Reeve
  • Patent number: 6223854
    Abstract: A safety and support garment that is worn by a user to assist the user in climbing a tree and then maintaining either a standing or sitting position in the tree. The garment includes a girdle with leg holes through which the user extends his or her legs and pulls the garment up around the waist. A rigid seat is secured to the girdle and is positioned around the user's lower back while the user is on the ground to provide lumbar support, and then is positioned to serve as a seat when the user is in a tree. In addition, ropes of adjustable lengths are attached to the girdle as support and safety ropes for encircling the tree while allowing the user to freely move completely around the tree. Suspenders or an additional harness may also be attached to the girdle for additional support and comfort.
    Type: Grant
    Filed: June 8, 1999
    Date of Patent: May 1, 2001
    Inventor: Jason Nolz
  • Patent number: 6079517
    Abstract: A power driven tree stand including an elevator assembly having a pair of parallel primary rails and a pair of parallel secondary rails. A primary axle couples the primary rails and a secondary axle couples the secondary rails. A pair of primary tires are rotatably received on the primary axle. A pair of secondary tires are rotatably received on the secondary axle. A pair of parallel support rails have free first ends and second ends pivotably coupled by pins to the exterior ends of the primary rails and a plurality of tubular cross bars there between for receiving a wheelchair thereupon.
    Type: Grant
    Filed: September 28, 1999
    Date of Patent: June 27, 2000
    Inventor: Robert W. Payne
  • Patent number: 6045442
    Abstract: A heavy-duty game hoist for suspending large game, such as deer, or other animals for processing in a stable, non-rotating manner. The preferred embodiment of the present invention contemplates a hoist configured to be affixed to a pole, tree, or the like, the hoist including a first vertical support member which engages the pole or tree, the first vertical support member engaging a frame which includes a laterally emanating horizontal support member having first and second ends, the first end engaging the first vertical support member, the second end distal from the first vertical support member, the second end of the horizontal support member supporting a second vertical support member. In the preferred embodiment, the second vertical support member has a square or other configured conduit formed longitudinally therethrough, and is configured to telescopically engage a vertical boom member which includes a gambrel for engaging and supporting the game.
    Type: Grant
    Filed: November 18, 1998
    Date of Patent: April 4, 2000
    Inventor: Richard W Bounds
  • Patent number: 6041891
    Abstract: A climbing device for attaching to building frames having a pair of jaw members, at least one of which is movable with respect to the other. The spacing between the jaw members may be adjusted, and a lever mechanism is provided to permit the user to detachably affix the climbing device to the frame of a building. A support member is also provided to provide a foot hold for a user so that the user may stand on the device during use. The device may also be connected to a tether or safety line and ultimately connected to a harness attached to the user's body.
    Type: Grant
    Filed: July 28, 1998
    Date of Patent: March 28, 2000
    Inventors: Peter J. Fullam, Louis J. Cowin
  • Patent number: 6016889
    Abstract: A fall protection device for protecting a user from falling while climbing a pole includes a housing dimensioned to fit over a top end of the pole. THe housing comprises a closed end and an opposite open end, through which the top end of the pole is received. In one embodiment, a pivot pin is fixedly connected to and extends upwardly from the closed end of the housing in a substantially vertical direction. A swing arm assembly includes an extended portion connected to a hollowed swing portion having a swing axis and an interior surface. The swing portion is dimensioned to receive the pivot pin and to house at least two bearing assemblies. Each of the bearing assemblies is axially disposed between the pivot pin and the interior surface of the swing portion. In another embodiment, the swing arm assembly includes a cam follower assembly connected to the extended portion.
    Type: Grant
    Filed: July 7, 1997
    Date of Patent: January 25, 2000
    Assignee: Commonwealth Edison
    Inventors: James L. Pearcy, Frank A. Elbl
  • Patent number: 5983966
    Abstract: A self-propelled tree pruning apparatus having a cutting tool with helical edges, such as a milling head. The pruning apparatus is comprised of a frame, at least one pair of driven wheels rotatably attached to the frame, a pair of hugger wheels rotatably held by support means, the support means being adjustably attached to the frame to permit the hugger wheels to be positioned a distance from the driven wheels sufficient to allow the trunk of a tree to be pruned to fit between the driven wheel and the hugger wheels, pneumatic means, such as air bags, for urging the hugger wheels toward the driven wheels, the cutting tool being attached to a drive shaft that is attached to the frame in a manner to allow the cutting tool to move along three axes, and a self-powered motor for driving the driven wheels and cutting tool. In operation, the pruning apparatus is mounted on the trunk of a tree to be pruned, with driven wheels on one side thereof and a pair of hugger wheels located on the other side of the trunk.
    Type: Grant
    Filed: November 12, 1998
    Date of Patent: November 16, 1999
    Inventor: John L. Clouston
  • Patent number: 5820455
    Abstract: A portable animal hoist (10) comprises the vertical member (12). The member holder (12B) is securely attached to the top end of the vertical member (12) on one distal end. The opposite distal end of the member holder (12B) is wrapped around the tree (30) and securely fastened with the removable fastening device to the top of the vertical member (12) by the vertical member horizontal bracket (12A). The member holder (12B) functions to removably support the portable animal hoist (10) on the verticle member. A top cross member (14T) is securely attached perpendicularly to the top end of the vertical member (12). The bottom cross member (14B) securely attached at the bottom end of the vertical member (12) and positioned perpendicularly thereto. A horizontal member (16) is pivotally connected at the back distal end by the first fastener (28) to the top end of the vertical member (12) extending perpendicularly therefrom.
    Type: Grant
    Filed: October 2, 1997
    Date of Patent: October 13, 1998
    Inventor: William F. Breedlove
  • Patent number: 5806628
    Abstract: A climbing device for attaching to building frames having a pair of jaw members, at least one of which is movable with respect to the other. The spacing between the jaw members may be adjusted, and a lever mechanism is provided to permit the user to detachably affix the climbing device to the frame of a building. A support member is also provided to provide a foot hold for a user so that the user may stand on the device during use. The device may also be connected to a tether or safety line and ultimately connected to a harness attached to the user's body.
    Type: Grant
    Filed: July 9, 1996
    Date of Patent: September 15, 1998
    Inventors: Peter J. Fullam, Louis J. Cowin
  • Patent number: 5740882
    Abstract: A combination hunting stand and game carrier apparatus (10) is described. The apparatus includes a first frame member (12), a second frame member (22) and a third frame member (42). A wheel (48) is mounted on the third frame member to allow for moving the apparatus in the game carrier configuration. The wheel is removed from the third frame member and rotated 90.degree. and remounted on the third frame member to provide a seat for the apparatus in the game carrier configuration. A pair of handles (60) are provided on either side (12C) of the first frame member and allow for moving the apparatus in the game carrier configuration. The handles are removed from the first frame member and reattached between the first frame member and the second frame member to act as braces for the hunting stand configuration.
    Type: Grant
    Filed: May 31, 1996
    Date of Patent: April 21, 1998
    Inventors: Ricky L. Griffith, Randy L. Griffith
  • Patent number: 5692582
    Abstract: A vertical columnar member climbing device having an upper climbing assembly and a lower climbing assembly connected by a pair of elastic connectors. The climbing device provides a frame and a step pivotally attached to the frame. A cable extends outwardly from the frame and extends around the vertical columnar member and is spring biased to tighten around the columnar member thereby securing the upper climbing assembly to the columnar member. The upper assembly may be pivoted outwardly away from the tree with the step being pivoted downwardly to operate as a diagonal brace intermediate the upper climbing assembly and the vertical columnar member with a separate strap extending outwardly from the frame around the columnar to further secure the upper climbing assembly to the tree. A sling is suspended from the upper climbing assembly above the lower climbing assembly to support a user.
    Type: Grant
    Filed: January 4, 1996
    Date of Patent: December 2, 1997
    Inventor: Norman R. Lindemood
  • Patent number: 5685393
    Abstract: A tree climbing apparatus includes a frame structure having a plurality of elongated frame elements interconnected at their ends and forming supports for rotatable tree gripping elements. A bracket is disposed about a tree to be climbed and is attached to a pair of lift rods. A pair of operating rods are connected with these lift rods to cause operating movement.
    Type: Grant
    Filed: February 8, 1996
    Date of Patent: November 11, 1997
    Inventor: W. O. Early
  • Patent number: 5682961
    Abstract: A skyrise window panel installation assembly including an heavy duty cable structured to extend down a side of a skyrise and be securely anchored at a point above an installation location. The assembly further includes a winch assembly having a rigid and strong drive frame at which the cable is received and securely engaged for secure guided, driven interconnection, selectively up and down a length of the cable, thereby providing for the effective positioning of the winch assembly in a desired position relative to the window panel installation location. Secured to the drive frame is a primary operator chair wherein a primary operator sits in confronting relation to the side of the skyrise in order to effectively and precisely position the winch assembly in the desired position. Extending from the drive frame is a connection bracket, to which a suction assembly is secured. The suction assembly includes a mount frame and is disposed in a generally vertically disposed orientation along the side of the skyrise.
    Type: Grant
    Filed: August 20, 1996
    Date of Patent: November 4, 1997
    Inventors: Francisco Sotomayor, Rodolfo Charry
  • Patent number: 5647454
    Abstract: A new and improved portable tree climbing apparatus for a hunter for ascending and descending a tree is disclosed. The invention comprises an upper member having a seat adapted for swivelly supporting a hunter and an arcuate retaining loop adapted for rolling communication with the tree and keeping the upper member in a horizontal disposition when ascending and descending the tree. The retaining loop has a first end and a second end adapted for releasable engagement with the seat. A lower member has a safety blade disposed in releasable ratchetable engagement with a trunk of the tree for keeping the apparatus in stable communication with the trunk when ascending the tree. A traction wheel is disposed therebetween on an upstanding elongated member and has a plurality of teeth in intermittent contact with the trunk for effortlessly ascending and descending the tree.
    Type: Grant
    Filed: June 19, 1995
    Date of Patent: July 15, 1997
    Inventor: Daniel D. Fehr
  • Patent number: 5603389
    Abstract: A pole top safety device in general comprises a housing including an inner sleeve member dimensioned to fit over the top of the utility pole. A securing mechanism for selectively securing the inner sleeve member onto the utility pole at least at a point below the top of the utility pole. An outer sleeve member is positioned around the inner sleeve member, with the outer sleeve member being rotationally supported on the inner sleeve. The outer sleeve member carries a beam member extending outwardly from the outer sleeve, with the beam member including attachment means at its distal end to which a fall arrest system is selectively attachable. Particularly, the beam member extends radially outward from a position adjacent the utility pole, with the safety device and particularly the inner sleeve and associated outer sleeve being attached to the pole at points both above and below the beam member.
    Type: Grant
    Filed: June 15, 1995
    Date of Patent: February 18, 1997
    Assignee: Centerior Energy
    Inventor: David A. Zemon
  • Patent number: 5542496
    Abstract: A circular robotic device has retractable extendible surface engaging drives controlled by linear actuators. A pressure transducer indicates the pressure exerted by one such drive on the surface if the pressure is to high the drives are retracted, if the pressure is too low the drives are extended. A more sophisticated version controls the pressure exerted by each drive independently. In a pole centering version this providing a tight clamp allows the device to climb and descend the typically tapered poles. The device can prime and paint poles to predetermined thickness, as well as sandblast the poles. In a pipe cleaning version the drive engage the internal surface of a pipe. The pipe cleaning version carries pipe cleaning and/or X-ray equipment. A microprocessor monitors the device and provides status information to a remote control unit.
    Type: Grant
    Filed: December 15, 1994
    Date of Patent: August 6, 1996
    Inventor: Carroll R. St. Denis
  • Patent number: 5400869
    Abstract: A device for ascending along a rope comprises a pair of ascenders and a leg loop in the form of a pedal cooperating with a cord passing over two pulleys to form a tackle device authorizing a gearing down effect of the effort exerted on the leg loop. The effort required for an ascending step corresponds to two thirds of the weight of the climber, whereas the leg travel when moving from the standing position to the sitting position is about one and a half times the distance of an ascending step.
    Type: Grant
    Filed: September 17, 1992
    Date of Patent: March 28, 1995
    Assignee: Petzl S.A.
    Inventor: Jean-Louis Rocourt
  • Patent number: 5361869
    Abstract: A hand climber is disclosed which aids a person in scaling a tree without damage to the tree. The hand climber includes a chain for extending around the tree, a top anchor for securing the chain around the tree and a body anchor for securing the hand climber to the tree. Attached at one side to the body anchor is a fold out handle use by a climber to grip the device. Sets of teeth are attached to the opposite side of the body anchor to secure the device to the tree.
    Type: Grant
    Filed: October 12, 1993
    Date of Patent: November 8, 1994
    Inventor: Elmer W. Ledbetter
  • Patent number: 5351783
    Abstract: A climbing vehicle comprising a rigid frame which is provided with a loading platform and is carried by a pair of drive wheels which, in working position, rest against the pole-like element to be climbed. The frame supports a motor element actuating the drive wheels. A pair of arms is articulated at the front of the frame and supports a pair of counteracting wheels which are freely rotatable about a horizontal axis, whereat the counteracting wheels are arranged to be clamped, during work, against the pole-like element to be climbed, in a position opposite to the drive wheels.
    Type: Grant
    Filed: November 10, 1992
    Date of Patent: October 4, 1994
    Assignee: Alcegarden S.r.l.
    Inventor: Alfredo Celli
  • Patent number: 5341896
    Abstract: A safety harness comprising a strap adapted to encircle the waist of a wearer and for coupling said strap about the waist of the wearer with a first and second lanyard connected to said strap adapted to encircle a tree. Each lanyard has an adjustable loop with a free end passed through a tubular slip collar.
    Type: Grant
    Filed: January 6, 1993
    Date of Patent: August 30, 1994
    Inventor: Joseph A. Amacker
  • Patent number: 5316104
    Abstract: The invention relates to an apparatus for climbing an upright columnar member such as a tree, pole, or the like, using two climbing members. The first climbing member has a first upright member gripping structure and an adjustable platform spaced from the upright member to accommodate the body of the user in a sitting position. The adjustable platform is preferably a seat which is adjustable to permit the occupant to recline from an upright sitting position. The second climbing member has a second upright member to accommodate the feet of the user. One or both of the climbing members have a retraction device and locking mechanism for adjustably maintaining the climbing members in substantially horizontal position relative to the ground as the climber ascends or descends the tree.
    Type: Grant
    Filed: November 16, 1992
    Date of Patent: May 31, 1994
    Inventor: Joseph A. Amacker
  • Patent number: 5311967
    Abstract: A hand climber for use in climbing trees or similar vertical members includes a rigid cylindrical support bar and a flexible strap. One end of the strap is attached to the support bar at a fixed location on the strap and the other end of the strap is removably attachable to the support bar at any of a series of locations along the length of the strap. The strap is formed from extruded nylon 6 with yield tensile strength between about 10,000 and about 15,000 psi. An extruded rubber sleeve may optionally be slidably positioned on the strap for improved frictional contact with the vertical member being climbed. The hand climber may also optionally include a seat assembly hingedly mounted on the support bar.
    Type: Grant
    Filed: May 5, 1993
    Date of Patent: May 17, 1994
    Inventor: Mark B. Kennedy
  • Patent number: 5265780
    Abstract: A combined backpack frame and object climbing wildlife stand having a plurality of utilization modes including a backpack mode, an object climbing mode and a wildlife stand mode comprising a first arrangement to provide a backpack frame in the backpack mode, a climbing device in the climbing mode and a platform in the stand mode; a second arrangement detachably connected to the first arrangement to encircle the object to assist the first arrangement in climbing when in the climbing mode and to stabilize the first arrangement in the stand mode; a third arrangement detachably connected to one end of the first arrangement at approximately a right angle thereto to provide a load bearing member when in the backpack mode and to be detached from the first arrangement to provide a climbing assist member when in the climbing mode and to provide a seat for a user in the stand mode after climbing to a desired height on the object; and a fourth arrangement detachably connected to the third arrangement to encircle the obj
    Type: Grant
    Filed: June 5, 1992
    Date of Patent: November 30, 1993
    Inventors: Timothy I. Matthews, John C. Wyckoff
  • Patent number: 5257677
    Abstract: A portable appliance adapted for temporary attachment to a columnar member, such as a tree, pole, or the like, includes a frame which is attached to the columnar member by a tensile member such that the frame is pivotable between an unlocked position, in which the frame is loosely attached to the columnar member, and a locked position, in which the frame is securely attached to the columnar member. Because the distance between the attaching means and the columnar member increases as the frame pivots from its unlocked position to its locked position, the tensile member is tensioned in response to such pivotal movement of the frame. In order to inhibit the inadvertent detachment of the appliance from the columnar member when the frame is in its locked position, the attaching means is located between an upper end and a lower end of the frame and adjacent to an outer edge thereof. To facilitate transportation and storage, the frame can be collapsible and/or nestable.
    Type: Grant
    Filed: November 24, 1992
    Date of Patent: November 2, 1993
    Inventor: James L. Stepp
  • Patent number: 5234074
    Abstract: A fall arrest lanyard for use by a worker at an elevated position on a pole, e.g., a telephone pole. The lanyard comprises a flexible strap and a pair of gripping units. The strap is arranged to be releasably connected to the worker to form a loop encircling the pole. Each of the gripping units comprises an elongated, arcuate tubular member having a handgrip at one end and pole penetrating members at the other end. The strap extends through both tubular members. The penetrating members are made up of an enlarged head having a plurality of larger upper teeth and a plurality of small lower teeth. Each tooth has a horizontally disposed cutting edge. The gripping units are arranged to be manipulated by the worker grasping the handgrips to cause the cutting edges of all of the teeth to penetrate into the material of the pole.
    Type: Grant
    Filed: January 23, 1992
    Date of Patent: August 10, 1993
    Inventor: Michael Bell
  • Patent number: 5222991
    Abstract: A fall arrest lanyard for use by a worker at an elevated position on a pole, e.g., a telephone pole. The lanyard comprises a flexible strap and a pair of gripping units. The strap is arranged to be releasably connected to the worker to form a loop encircling the pole. Each of the gripping units comprises an elongated, rigid or semi-rigid tubular member having a handgrip at one end, and a first pole penetrating head adjacent the handgrip. In one embodiment, a second pole penetrating head is located at the other end of the tubular member. The strap extends through both tubular members. Each of the penetrating heads has a plurality of larger upper teeth and a plurality of small lower teeth. Each tooth has a horizontally disposed cutting edge. The gripping units are arranged to be manipulated by the worker grasping the handgrips to cause the cutting edges of the teeth to penetrate into the material of the pole.
    Type: Grant
    Filed: April 13, 1992
    Date of Patent: June 29, 1993
    Inventor: Michael Bell
  • Patent number: 5184696
    Abstract: A fall arrest belt assembly attaches to the body belt of a climber who climbs wooden utility poles or trees. The belt assembly has an outer strap to fit around the pole, an elastic cross strap to pull the outer belt against the pole, and a safety device on the outer strap. The safety device has a large tooth that is normally latched in a recessed or closed position. If the climber falls, a barb on the tooth pulls the tooth to an open position, assisted by a spring which helps deploy the tooth and hold it open. The tooth penetrates the pole and prevents falling. A pair of balls on the cross strap prevent abrasion of the cross strap on the pole.
    Type: Grant
    Filed: March 6, 1992
    Date of Patent: February 9, 1993
    Inventors: Myles Meed, Paul Porter
  • Patent number: 5143176
    Abstract: A climbing apparatus which provides a mechanical means of ascending or descending any generally vertical member such as a tree to support a person when in a climbing, seated or standing position by means of two locking points of contact against the vertical member. The climbing apparatus is collapsible and compactable apparatus and may be constructed of any material that would allow sufficient physical strength to support an average person and be sufficiently light weight for a person to carry by means of backpacking.
    Type: Grant
    Filed: October 15, 1990
    Date of Patent: September 1, 1992
    Inventor: Bryan A. Burdette
  • Patent number: 5141074
    Abstract: In a lineman's pole strap assembly for use on utility poles and the like, the assembly comprising an outer strap and a cross strap attached at its ends to the outer strap so as to define a closed loop encircling the pole, the cross strap is connected to the outer strap by slide members which are interconnected by an elastic tensile member under tension. In normal ascent and descent the cross strap is manually held away from the pole, but is releasable so as to be pulled into tight frictional engagement with the pole and to pull gaffs which are mounted on the slide members into listing engagement with the pole.
    Type: Grant
    Filed: February 24, 1992
    Date of Patent: August 25, 1992
    Assignee: Ontario Hydro
    Inventors: Andrew C. Sulowski, Donald R. Ford
  • Patent number: 5137113
    Abstract: A lineman's safety strap assembly for attachment to a body belt, comprises: a pole strap having two ends; a cross belt strap extending between the two ends of the pole strap in order to form therewith a loop; the loop being able to open and close in order to engage and disengage the loop to and from a utility pole; two side straps; coupling clips for detachably connecting each side straps to the body belt; and connectors for connecting the side straps, cross-belt strap and pole strap together in such a manner that a lineman wearing the body belt is retained by the loop when the loop is closed around the pole and the body belt is connected to the side straps; at least one of the side straps being integral and continuous with the cross belt strap; the connectors means comprising a belt slide rigidly connected to at least one of the ends of the pole strap, for receiving and slidably holding the cross-belt strap.
    Type: Grant
    Filed: December 16, 1991
    Date of Patent: August 11, 1992
    Inventor: Michel Lortie