Single Pole Or Strand Patents (Class 182/100)
  • Patent number: 9539948
    Abstract: The present disclosure relates to a telescoping step system which has at least one stringer assembly having telescopically coupled first and second tubular components. The second tubular component is telescopically extendable relative to the first tubular component. The stringer assembly is operably associated with a structure. The system further has at least one step assembly associated with one of the first and second tubular components. The stringer assembly is telescopically collapsible into a retracted position to form a compact assembly either adjacent to or within a portion of the structure, and extendable into an extended position extending outwardly from the structure. In the extended position the stringer assembly presents the step assembly as a platform which a user is able to step on to, and thus aids the user with ingress into and egress from the structure.
    Type: Grant
    Filed: March 22, 2016
    Date of Patent: January 10, 2017
    Assignee: JAC Products, Inc.
    Inventors: Michael J. Presley, Conde M. Gonzalez, Giuseppe Cappellino, Sean M. LeFrancois
  • Patent number: 9512675
    Abstract: Ladder modules are provided in manageable length sections. The first section is secured at the top with a multi-hole horizontal mounting bar that is secured by a ratchet strap with hooks. The bottom of the first section rests firmly on the ground with a cleat at the bottom to secure the ladder section and prevent shifting. The second section contains a ball on the bottom of the structure that is mounted onto the first section by placing the ball into the receiving end of the first section, which allows the second section to pivot 360 degrees and lean and tilt fore and aft. This section is also secured to the tree with a ratchet strap and hooks, and is safe to climb to the next section after tightening the ratchet strap. Additional sections can be added in the same manner as the second section to pivot and level as needed.
    Type: Grant
    Filed: June 2, 2015
    Date of Patent: December 6, 2016
    Inventor: Curtis D. Fast
  • Patent number: 9285076
    Abstract: The anchor device includes a post movably connected to a base and is lockable in shovel, anchor and storage positions. First, it is locked in a shovel position and a hole is dug in beach sand. The anchor device is then disengaged from the shovel position and then locked into an anchor position and then inserted into the hole and then covered with beach sand to secure the post portion of the anchor device in a vertical position with a portion of the post exposed above the surface of the sand. A beach umbrella is inserted into and secured to the post. To remove the anchor device from the sand, the anchor lock position is disengaged from above the sand to permit the post and the base to freely pivot relative to each other so the base and post can be easily pulled from the sand.
    Type: Grant
    Filed: September 29, 2015
    Date of Patent: March 15, 2016
    Inventor: Frederick Joseph Paolucci
  • Patent number: 9249926
    Abstract: A tensioning arrangement uses a tendon to pull together (pre-stress) a hollow steel arm and a bracket in a localized area around the joint between the arm and the bracket in order to induce localized compressive stresses that will reduce the wind-induced, intermittent tensile stresses and hence minimize fatigue at the joint between the arm and the bracket.
    Type: Grant
    Filed: April 6, 2015
    Date of Patent: February 2, 2016
    Assignee: Valmont
    Inventors: Earl R. Foust, Fouad H. Fouad
  • Patent number: 8789653
    Abstract: A tree stand comprises a metal post, a lower platform pivotably coupled to the metal post for pivoting between a platform extended position and a platform folded position, an upper seat pivotably coupled to the post for pivoting between a seat extended position and a seat folded position, and a rubber or polymeric interface having a thickness of at least ? of an inch and contacting the post and at least one of lower platform when lower platform is in the platform folded position, and the upper seat when the upper seat is in the seat folded position.
    Type: Grant
    Filed: February 8, 2012
    Date of Patent: July 29, 2014
    Assignee: DDI, Inc.
    Inventor: John Brian Priest
  • Publication number: 20140097040
    Abstract: A climbing assisting equipment includes a rope transmitting device, a suspension device, and a rope adjusting device. The rope transmitting device, which is suspended by the suspension device, has a displacement generated by a loading on the rope member.
    Type: Application
    Filed: June 17, 2013
    Publication date: April 10, 2014
    Inventor: Jui-Lon Chang
  • Patent number: 8511434
    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: Grant
    Filed: December 23, 2010
    Date of Patent: August 20, 2013
    Assignee: D B Industries, LLC
    Inventor: John P. Blomberg
  • Patent number: 8511430
    Abstract: An improved ladder containment and lock device, comprising a left component, a right component, and a two piece bushing. There is a locking subassembly and a pair of coupling bolts, for coupling the components of the device. The two piece bushing has a passageway formed there through, with the passageway being angled relative to the right and left components.
    Type: Grant
    Filed: February 14, 2011
    Date of Patent: August 20, 2013
    Inventor: Mark F. Pelini
  • Patent number: 8439162
    Abstract: A tree mounted ladder assembly provides adjustable spacing between steps to facilitate climbing into a tree. The assembly includes an elongated bar, an upper support coupled to the bar; and a lower support coupled to the bar. A connector is also coupled to the bar and a strap is coupled to the connector. The strap is configured for coupling around a tree to hold the upper support and the lower support against the tree. A plurality of steps is coupled to the bar.
    Type: Grant
    Filed: December 20, 2011
    Date of Patent: May 14, 2013
    Inventor: Kevin S. Galloway
  • Publication number: 20120267194
    Abstract: A bracket fixing for securing a safety line to a structure, has a safety line receiving portion and a fixing portion connected to the safety line receiving portion, the fixing portion having a captive mechanical fixing, arranged to engage with and secure the bracket to the structure.
    Type: Application
    Filed: September 1, 2010
    Publication date: October 25, 2012
    Applicant: Latchways PLC
    Inventors: Owain Jones, Karl Jones
  • Patent number: 8261880
    Abstract: A step ladder apparatus for retention within a stake pocket comprising a frame assembly a plurality of step assemblies and an attachment assembly. The attachment assembly includes a frame flange and a wedge member. The frame assembly is positioned within the stake pocket so that the frame flange overhangs one end of the stake pocket. The base of the wedge member is inserted into the stake pocket opposite the frame flange so that the wedge flange overhangs the stake pocket on a side opposite the frame flange. As a result, the flanges cooperate to substantially preclude downward movement of the frame assembly, and, in turn, removal of the frame assembly in a downward direction from the stake pocket.
    Type: Grant
    Filed: March 7, 2008
    Date of Patent: September 11, 2012
    Inventor: Daryl J. Hop
  • Patent number: 8235174
    Abstract: A jack plate ladder comprises a jack plate mount having a ladder groove, a pair of threaded ladder mount bolt holes, and a pair of threaded plate mounting holes. A ladder containment piece is coupled by a plurality of ladder mount bolts to the jack plate mount and forms a generally rectilinear ladder aperture there through the jack plate mount. A ladder has a central shaft and a pair of steps, the ladder being contained with the ladder aperture.
    Type: Grant
    Filed: September 24, 2009
    Date of Patent: August 7, 2012
    Inventor: Mark F. Pelini
  • Patent number: 8210311
    Abstract: A fire escape system includes at least one guide post and an escape platform slidably carried by the at least one guide post and comprising a platform plate; a pair of handlebars pivotally carried by the platform plate; a pair of guide rollers carried by the pair of handlebars, respectively, and adapted to detachably engage the at least one guide post; and a pair of brake assemblies carried by the escape platform and adapted to engage the at least one guide post.
    Type: Grant
    Filed: August 2, 2009
    Date of Patent: July 3, 2012
    Inventor: Jimmy Rice
  • Patent number: 8006803
    Abstract: The invention relates to a ladder comprising a single post (1) provided with a fixing means (4) on the upper end (1S) thereof, said ladder comprising an anchoring means (9, 10) which is especially adapted to said fixing means (4) and is attached to the wall (7), and foldable supporting arms (3) which are connected to either side of the single post (1) in an articulated manner.
    Type: Grant
    Filed: June 7, 2006
    Date of Patent: August 30, 2011
    Assignee: Airbus France
    Inventor: Bernard Guering
  • Patent number: 8002083
    Abstract: A search line rescue system for use by rescue personnel to facilitate a safe search and rescue mission through an area of low to zero visibility is disclosed. The search line rescue system comprises a search rope having a first end configured to be attachable to a fixed point at an entry point, a central portion with at least one distance marker and a second end. The system further comprises a search device handle with a leading end and a trailing end wherein the search device handle is slidably coupled to the search rope. The search device handle comprises a rigid body, an automatic lock mechanism coupled to the rigid body wherein the automatic lock mechanism comprises a manual lock mechanism release, and at least one tag line attachment anchor. At least one locking directional indicator is securely coupled to the search rope at a desired location, and is configured to releasably engage with the automatic lock search mechanism of the search device handle.
    Type: Grant
    Filed: January 23, 2008
    Date of Patent: August 23, 2011
    Inventors: John E. McLoughlin, Neocles G. Athanasiades, Kiam Meng Toh, Joseph V. Beltrani
  • Publication number: 20100326769
    Abstract: A lift-up safety grab post mechanism for rooftop hatchway curbs having a mounting bracket on a hatchway curb and having an elongate opening having a pivot bolt for upward and downward grab post movement. A lift-up grab post has a pivot opening receiving the pivot bolt and having a stop member fixed thereto. The lift-up grab post is rotationally moveable between an upstanding position and a horizontal position relative to the roof hatchway curb. The mounting bracket defines a receiver seat and further defines a stop shoulder adjacent the receiver seat that prevents rotational movement of the grab post until the grab post has been raised from said receiver seat to a position above the stop shoulder.
    Type: Application
    Filed: June 24, 2010
    Publication date: December 30, 2010
    Inventors: Joseph Cuccurullo, Dante Cuccurullo
  • Patent number: 7766124
    Abstract: A system for the evacuation of persons from a multi story structure during circumstances in which the normal escape mechanisms such as stairs and elevators are unusable for any reason. The system mounts externally of the affected structure and provides at least one evacuator upon which a person may ride in a controlled descent from an area of danger to an area of relative safety. The evacuator rides on a post and the evacuee may control the speed of his or her descent with a simple braking mechanism. A safety belt and foot rests provide a sense of security during the descent from danger.
    Type: Grant
    Filed: May 29, 2007
    Date of Patent: August 3, 2010
    Inventor: Edward H. Horn
  • Publication number: 20090283360
    Abstract: A handicap assister includes an upright support extending upward to a ceiling from a floor mount for a base and a rotating foot platform. The upright support can include a pole telescoped within a sleeve arranged on an axis of rotation of the platform. A hand grip region or handle is arranged at about eye level to a person sitting next to the platform so that a user can place feet on the platform and use the hand grip to rise from a seated position to a standing one, can then rotate around the upright support, and can use the hand grip to help lower back into a seated position. This allows movement between a bed and a wheelchair and between a wheelchair and a bed or toilet.
    Type: Application
    Filed: October 21, 2008
    Publication date: November 19, 2009
    Inventor: George H. Eckerdt
  • Publication number: 20090200109
    Abstract: An energy absorber, for use with a safety cable attached to a structure, comprises an elongate slide member (3) and a friction plate (5, 7) positioned adjacent to the elongate slide member. The friction plate is urged against a face of the elongate slide member by a biasing means (9, 11) to generate friction between the friction plate and the elongate slide member.
    Type: Application
    Filed: September 15, 2006
    Publication date: August 13, 2009
    Inventor: Simon Luke
  • Publication number: 20090183945
    Abstract: A search line rescue system for use by rescue personnel to facilitate a safe search and rescue mission through an area of low to zero visibility is disclosed. The search line rescue system comprises a search rope having a first end configured to be attachable to a fixed point at an entry point, a central portion with at least one distance marker and a second end. The system further comprises a search device handle with a leading end and a trailing end wherein the search device handle is slidably coupled to the search rope. The search device handle comprises a rigid body, an automatic lock mechanism coupled to the rigid body wherein the automatic lock mechanism comprises a manual lock mechanism release, and at least one tag line attachment anchor. At least one locking directional indicator is securely coupled to the search rope at a desired location, and is configured to releasably engage with the automatic lock search mechanism of the search device handle.
    Type: Application
    Filed: January 23, 2008
    Publication date: July 23, 2009
    Inventors: John E. McLoughlin, Neocles G. Athanasiades, Kiam Meng Toh, Joseph V. Beltrani
  • Publication number: 20080296088
    Abstract: A system for the evacuation of persons from a multi story structure during circumstances in which the normal escape mechanisms such as stairs and elevators are unusable for any reason. The system mounts externally of the affected structure and provides at least one evacuator upon which a person may ride in a controlled descent from an area of danger to an area of relative safety. The evacuator rides on a post and the evacuee may control the speed of his or her descent with a simple braking mechanism. A safety belt and foot rests provide a sense of security during the descent from danger.
    Type: Application
    Filed: May 29, 2007
    Publication date: December 4, 2008
    Inventor: Edward H. Horn
  • Patent number: 7434661
    Abstract: The present invention may be used for climbing over a fence or a vertical barrier. A body may have a plurality of steps attached orthogonal to the body. The body may have a width and length to fit between two vertical bar fence elements and to position the steps generally perpendicular to a plane of a fence. A top hook may be attached to a top end of the body. A horizontal bar may be attached at a bottom end of the body generally orthogonal to the steps. A rotatable member may be rotatably attached to the body and may be spaced apart from the body by a pedestal.
    Type: Grant
    Filed: June 7, 2005
    Date of Patent: October 14, 2008
    Inventor: Robert D. Storey
  • Patent number: 7195100
    Abstract: A system and method for allowing escape of many persons from a multistory building over a short period of time. The method and system include strategic placement and use of anchor points and components in conjunction with escape kits or devices so as to allow increased efficiency and safety of escape from the building for a plurality of persons in a coordinated manner, including escape of multiple escapees simultaneously or near simultaneously. The system and method include determining a strategic escape plan and configuration that incorporates consideration of building features, including features possibly interfering with escape routes, and three dimensional aspects of both building characteristics and anchor and escape kit and device features.
    Type: Grant
    Filed: July 8, 2002
    Date of Patent: March 27, 2007
    Inventor: Nir Shechter
  • Patent number: 7163082
    Abstract: A climbing stick apparatus includes a plurality of stick members, each of which includes a fastener reception portion at each stick member end and a plurality of foot-support-reception channels. A plurality of member-to-member couplers and fasteners are provided for erecting a plurality of stick members in a longitudinal arrangement. A plurality of foot support members are received in the foot-support-reception channels. The climbing stick apparatus of the invention permits rapid assembly of a climbing stick next to a tree for hunters and other outdoorsmen. When erected next to a tree the climbing stick apparatus permits the hunter to remain above ground level so that he is not noticed or smelled by game on the ft floor.
    Type: Grant
    Filed: April 20, 2004
    Date of Patent: January 16, 2007
    Inventor: John H. Bigard
  • Publication number: 20040216952
    Abstract: A modular ladder for mounting to a tree or pole includes a plurality of separate sections, each of which can be separately mounted to the tree or pole. Each of the separate tree mountable sections includes an upper step, a lower step, and a rigid frame element connecting the upper and lower steps. A flexible mounting element is used to secure the frame element to the tree or pole. Each of the steps projects radially outwardly from the tree when mounted, making it easier to use the steps in climbing the tree or pole. The steps each have a slot formed therein for permitting the nesting of the separate tree mountable sections one against another. In this way, the separate sections can be compactly configured for storage and carrying. Each of the steps is large enough to accommodate the user's two feet in side-by-side relationship. In this way, the user is not required to balance on only one foot while standing on the steps. The upper and lower steps are spaced apart by about two to three feet.
    Type: Application
    Filed: April 30, 2003
    Publication date: November 4, 2004
    Applicant: Summit Treestands, LLC
    Inventor: Ronald R. Woller
  • Patent number: 6789647
    Abstract: An escape mechanism for high-rise includes a safety rail and a safety facility. The safety facility is formed in a frame-like shape with an upper frame and a lower frame being constructed by two parallel short steel columns and fixedly connected together by thick steel plates. The upper frame and the lower frame are both movably and pivotally jointed by two parallel connecting rods connected with a transverse shaft, such that the upper frame and the lower frame may make relative movement in parallel with each other. In use, an escapee can be tied with a safety belt carrying a safety facility being sleeved into the safety rail, and scramble down by treading on the retractable pedals attached to the safety rail. In the event of an accidental stumble, the safety facility will be active immediately and thus prevent the escapee from further falling.
    Type: Grant
    Filed: May 27, 2003
    Date of Patent: September 14, 2004
    Inventor: Chi-Hsang Yeh
  • Patent number: 6719093
    Abstract: An extension ladder and tree stand for supporting a seated or standing person on an elevated platform against a tree trunk for hunting, photography, and the like. The ladder and platform collapse into a compact size and shape for carrying by a person. The ladder is in telescoping sections. Alternate steps of the ladder slide to the middle of each telescoping section. This provides twice as many steps as sections, reducing the number of telescoping sections by half. This minimizes weight, size, complexity, and expense. When deployed, all parts remain safely assembled in all positions. Captive spring loaded pins fix the telescoping sections in extended or retracted positions, and fix the sliding steps in a middle position of each section. A folding seat on the platform has a cushion that reconfigures into a back cushion for carrying the collapsed assembly on the back of a person.
    Type: Grant
    Filed: February 1, 2002
    Date of Patent: April 13, 2004
    Inventor: Michael R. Garbs
  • Publication number: 20040035637
    Abstract: A ladder is composed of a vertical support structure and a set of rungs. In the present invention, the vertical support structure is formed by a sailboat mast or other vertical object to be climbed. A set of step housings are attached to the mast. Each step housing contains an inclined hole sized to receive a removable rung. A set of removable rungs are provided. Each such rung has an insertion cylinder and a step. The insertion cylinder is placed in the inclined hole on one of the step housings. Interlocking mechanical features lock the removable rung in the step housing. The user can thus install a number of removable rungs in order to easily climb the sailboat mast or other vertical object.
    Type: Application
    Filed: August 28, 2003
    Publication date: February 26, 2004
    Inventor: Timothy Scott Skipper
  • Publication number: 20040016598
    Abstract: Scaffold ladder, that consists of a vertical support provided with rungs on the one hand, and with protruding parts or hook elements on the other hand which can co-operate with the erected scaffold elements.
    Type: Application
    Filed: June 25, 2003
    Publication date: January 29, 2004
    Inventor: Mark Verdijk
  • Patent number: 6668975
    Abstract: A ladder incorporating a vertical support structure and a set of removable rungs. The vertical support structure is formed by stacking a series of interlocking sticks. The sticks incorporate features allowing the removable installation of the rungs. The rungs are small and light, so that a set of such rungs may be easily carried by a user. The vertical sticks generally remain attached to the object to be climbed—such as a tree or pole. When the user wishes to climb the object, the user installs the rungs as he or she climbs. The rungs are then removed upon descent. In this manner, unauthorized climbing of the object is inhibited. Locking features are also included to prevent unauthorized access by another person having a set of removable rungs. Several different embodiments of the removable rungs are disclosed. The common feature of all these embodiments is the fact that the rungs cannot come loose from the vertical stick while they are under load.
    Type: Grant
    Filed: January 30, 2002
    Date of Patent: December 30, 2003
    Assignee: Center Ridge Outdoors, L.L.C.
    Inventor: Timothy Scott Skipper
  • Publication number: 20030146048
    Abstract: An extension ladder and tree stand for supporting a seated or standing person on an elevated platform against a tree trunk for hunting, photography, and the like. The ladder and platform collapse into a compact size and shape for carrying by a person. The ladder is in telescoping sections. Alternate steps of the ladder slide to the middle of each telescoping section. This provides twice as many steps as sections, reducing the number of telescoping sections by half. This minimizes weight, size, complexity, and expense. When deployed, all parts remain safely assembled in all positions. Captive spring loaded pins fix the telescoping sections in extended or retracted positions, and fix the sliding steps in a middle position of each section. A folding seat on the platform has a cushion that reconfigures into a back cushion for carrying the collapsed assembly on the back of a person.
    Type: Application
    Filed: February 1, 2002
    Publication date: August 7, 2003
    Inventor: Michael R. Garbs
  • Publication number: 20030141147
    Abstract: A ladder incorporating a vertical support structure and a set of removable rungs. The vertical support structure is formed by stacking a series of interlocking sticks. The sticks incorporate features allowing the removable installation of the rungs. The rungs are small and light, so that a set of such rungs may be easily carried by a user. The vertical sticks generally remain attached to the object to be climbed—such as a tree or pole. When the user wishes to climb the object, the user installs the rungs as he or she climbs. The rungs are then removed upon descent. In this manner, unauthorized climbing of the object is inhibited. Locking features are also included to prevent unauthorized access by another person having a set of removable rungs. Several different embodiments of the removable rungs are disclosed. The application of the invention to different types of hunting tree stands is also disclosed in detail, although the application of the invention extends far beyond hunting products.
    Type: Application
    Filed: June 4, 2002
    Publication date: July 31, 2003
    Inventor: Timothy Scott Skipper
  • Publication number: 20030141146
    Abstract: A ladder incorporating a vertical support structure and a set of removable rungs. The vertical support structure is formed by stacking a series of interlocking sticks. The sticks incorporate features allowing the removable installation of the rungs. The rungs are small and light, so that a set of such rungs may be easily carried by a user. The vertical sticks generally remain attached to the object to be climbed—such as a tree or pole. When the user wishes to climb the object, the user installs the rungs as he or she climbs. The rungs are then removed upon descent. In this manner, unauthorized climbing of the object is inhibited. Locking features are also included to prevent unauthorized access by another person having a set of removable rungs.
    Type: Application
    Filed: January 30, 2002
    Publication date: July 31, 2003
    Inventor: Timothy Scott Skipper
  • Publication number: 20030070818
    Abstract: The invention includes a personal search rope bag for use in facilitating firefighters in conducting reconnoiter and rescue operations in a burning structure. The personal search rope bag is lightweight, durable and user friendly. A method of conducting a search using the personal search rope bag is also disclosed.
    Type: Application
    Filed: October 15, 2001
    Publication date: April 17, 2003
    Inventor: John C. Hicks
  • Patent number: 6547035
    Abstract: A ladder module for use in climbing trees, hunting or other purposes. The module includes a support member having a pair of support brackets mounted at the top and bottom ends of the support member. The brackets are generally V-shaped and include a number of teeth on the interior surface of the bracket that engage the tree on which the module is placed to prevent the module from slipping on the tree. The brackets also include a rectangular slot in the center of the bracket that receives a support member from a second ladder module to form a convenient nested carrying arrangement for the ladder modules. The module also includes a releasable securing arrangement for securing the module about the tree. The arrangement comprises a belt having a buckle and a pair of straps removably engagable with a fastener mounted to the support member on the side of the support member opposite the support brackets.
    Type: Grant
    Filed: May 20, 1999
    Date of Patent: April 15, 2003
    Inventor: Andrae T. D'Acquisto
  • Patent number: 6340071
    Abstract: A rung-foldable ladder device for attaching to an upright structure for climbing thereupon. The rung-foldable ladder device includes an elongate tubular support member; and also includes a plurality of bracket members being securely attached to the elongate tubular support member and being adapted to removably fasten with straps about an upright structure; and further includes a plurality of rung members being pivotally attached to the elongate tubular support member; and also includes a cable being attached to the rung members for pivoting the rung members against the elongate tubular support member.
    Type: Grant
    Filed: April 27, 2001
    Date of Patent: January 22, 2002
    Inventor: Gerhard M. Diekemper
  • Patent number: 6305497
    Abstract: A mast ladder for going up the mast of a sailing craft having a mast with a sail slide extending along the length of the mast including a halyard slide, a plurality of connecting rods, a top step and a plurality of universal steps. The mast ladder is raised by engaging the top step with the sail slide and attaching a connecting rod to the lower end of the top step and raising the top step. The top step, each universal step and halyard slide, engage the sail slide keeping the mast ladder against the mast and providing support to each step. As the mast ladder is raised the top step has a connecting rod attached to the lower end of the top step and to the first universal step at its left or right hand position, which are alternated with a connecting rod between each universal step with the halyard slide connected upside down to the last universal step allowing the mast ladder to rest on the halyard slide so that the work on the craft may be completed.
    Type: Grant
    Filed: December 17, 1999
    Date of Patent: October 23, 2001
    Inventor: Steve J. Simon
  • Patent number: 6170609
    Abstract: A system for sportsmen when hunting at an elevated location in a tree without harming the supporting tree including a base plates The base plate has an interior face positioned in contact with the exterior surface of a supporting tree and an exterior exposed face. The base plate has laterally spaced apertures adjacent to its edges. A threaded machine bolt has a diameter over the majority of its length and has an interior edge secured to the exterior surface of the base plate and an enlarged cylindrical exterior end. A coupling assembly is formed of two sections. Each section has an interior link permanently secured to an associated aperture in the base plate and has free ends. A locking assembly removably couples the base plate-coupling assembly to a tree. A support assembly has a downwardly extending auxiliary plate positionable over the base plate with an opening there through.
    Type: Grant
    Filed: December 1, 1999
    Date of Patent: January 9, 2001
    Inventor: Edwin F. Dech
  • Patent number: 6105718
    Abstract: A roofer's step stilt for providing an adjustably extendable stilt for bracing on a toe hold structure on a roof top to allow a roofer to step thereon to reach higher up locations without requiring additional scaffolding to be constructed. The roofer's step stilt includes a tubular elongate top and bottom members each having upper and lower ends and a longitudinal axis extending between the respective upper and lower ends. The lower end of the top member telescopically receives the upper end of the bottom member into the top member. An upper footrest plate is coupled to the upper end of the top member. A lower footrest plate is outwardly extended from the top member adjacent the lower end of the top member.
    Type: Grant
    Filed: July 15, 1999
    Date of Patent: August 22, 2000
    Inventor: Lucas J. Stewart
  • Patent number: 6076634
    Abstract: A mast ladder for going up the mast of a sailing craft having a mast with a sail slide extending along the length of the mast including a halyard slide, a plurality of connecting rods, a top step and a plurality of universal steps. The mast ladder is assembled by attaching an end of the halyard to the upper end of the halyard slide to raise the mast ladder up the mast. The halyard slide, the top step and each universal step engage the sail slide keeping the mast ladder against the mast and providing support to each step. As the mast ladder is raised, the halyard slide has a connecting rod attached at the lower end and the connecting rod is attached to the top step at the upper end and a subsequent connecting rod is attached to the lower end of the top step and to the first universal step at its left or right hand position, which are alternated as the mast ladder is raised to the desired height necessary to complete the work on the craft.
    Type: Grant
    Filed: January 14, 1999
    Date of Patent: June 20, 2000
    Inventor: Steve J. Simon
  • Patent number: 6029773
    Abstract: The present invention refers to a tubular escape system for buildings consisting of a combination of a platform, multiple uprights located around the perimeter of the platform to support the railings, a door connecting the building interior on that floor with each platform, a opening in each platform measuring 1.00 meter in diameter, two tubes that perpendicularly cross each platform and are connected to a water tank that can manually or automatically fill the tubes with water, an extension tube that remains fixed and inserted within the tube while the escape is not in use, a bolt that passes through the extension tube and so fixes it inside the extension tube, a sponge base to be found on each platform at the bottom of the section of tube on that platform, a cover attached to the base of the extension tube, an auxiliary ladder attached to the platform railings, an extension inside the tube that prevents anybody from entering by means of the opening on the lower platform.
    Type: Grant
    Filed: June 16, 1999
    Date of Patent: February 29, 2000
    Inventor: Crisogono Herrera-Casasus
  • Patent number: 5816362
    Abstract: A modular safety ladder system for climbing trees is provided, comprising a single support member having a lower end and an upper end; a bottom step attached to the lower end; a top step attached to the upper end; an intermediate step attached to the support member between the bottom step and the top step; a flexible strap attached to the support member for suspending the ladder module from the tree, wherein the strap is placed in tension when weight is exerted on the ladder module; first and second stabilizers attached to the upper end and the lower end of the support member, respectively, for stabilizing the ladder module against the tree, wherein the first and second stabilizers include surfaces which are caused to forcibly contact the tree when the strap is placed in tension; and a safety loop connected to the strap for allowing a secure attachment between the strap and a coupling device on the climber, wherein the safety loop is constructed in a manner to support the weight of the climber.
    Type: Grant
    Filed: August 20, 1996
    Date of Patent: October 6, 1998
    Inventor: Joseph Robert Jenkins, Jr.
  • Patent number: 5806626
    Abstract: A portable safety ladder for climbing trees is provided, comprising a single primary support member having first step; a single secondary support member having a second step, wherein the secondary support member is slidable relative to the primary support member; a locking mechanism operatively disposed between the primary support member and the secondary support member for selectively locking the position of the secondary support member relative to the primary support member; a single flexible strap on the primary support member for suspending the ladder module from the tree, wherein the flexible strap is placed in tension when weight is exerted on the ladder module; first and second stabilizers attached to the primary support member and the secondary support member, respectively, for stabilizing the ladder module against the tree, wherein the first and second stabilizers include surfaces which are caused to forcibly contact the tree when the flexible strap is placed in tension; and a safety loop connected t
    Type: Grant
    Filed: September 20, 1996
    Date of Patent: September 15, 1998
    Inventor: Joseph Robert Jenkins, Jr.
  • Patent number: 5752580
    Abstract: A portable ladder module is provided, comprising a primary support member having a first step; a secondary support member having a second step, wherein the secondary support member is slidable relative to the primary support member. A lock is operatively disposed between the primary support member and the secondary support member for selectively locking the position of the secondary support member relative to the primary support member in an extended position and a retracted position. A strap having a quick-release buckle is secured to the primary support member for holding the ladder module to a tree, and a pair of rigid tubing members on each of the primary support member and the secondary support member are present for stabilizing the ladder module against the tree. Preferably, a third step is provided on either the primary or the secondary support member, depending upon the nature of the sliding relationship between the primary and secondary support members.
    Type: Grant
    Filed: September 11, 1996
    Date of Patent: May 19, 1998
    Inventor: Joseph Robert Jenkins, Jr.
  • Patent number: 5743354
    Abstract: An access rope for an offshore production platform comprises an upper end attached to a chain fixed to the platform, a central stabilizing section providing a series of weights and a lower section providing hand holding implements. The weights are of different size and act so the rope swings less in response to the wind than conventional ropes. The hand holding implements include a loop in the rope which can be grasped by a user and a series of enlarged knots. The hand holding section of the main rope is helically wrapped with a smaller rope in which the adjacent wraps are spaced well apart.
    Type: Grant
    Filed: June 20, 1996
    Date of Patent: April 28, 1998
    Inventor: Valentino H. Hunter
  • Patent number: 5655623
    Abstract: A ladder having pivotable folding riser sections, includes at least one pair of elongated riser components connected by a folding joint. The components have mating contacting ends abutting each other at an angle 45.degree. from the linear axis of the components. A reinforcing member concentric with said components is positioned across the joint, and a pivotable connection is formed by hinge members connected to each of the ladder components which are pivotally connected to each other by means of a hinge pin located exteriorally of the components. The invention also provides pivoting stand off members and a strap tightening mechanism for providing tightening tension equally on both ends of the strap which thus is not caused to move laterally during tightening.
    Type: Grant
    Filed: December 29, 1994
    Date of Patent: August 12, 1997
    Inventor: Helmut K. Skyba
  • Patent number: 5454445
    Abstract: An elevated observation stand is made in the form of a tubular ladder member with an eccentrically mounted seat and platform at the upper end, extending obliquely for safe access. A strap, engaged and tightened from the ground, binds the tubular ladder member to a tree at mid-span with sufficient force that the resulting friction supports the platform under load.
    Type: Grant
    Filed: February 14, 1994
    Date of Patent: October 3, 1995
    Inventor: Larry O. Berryman
  • Patent number: 5439072
    Abstract: A modular ladder system for climbing trees is provided, comprising at least two ladder modules, each ladder module comprising a hollow, primary support member having an upper end and a lower end; a secondary support member, telescopingly slidable within the primary support member, having an upper end and a lower end; a first step attached to the lower end of the secondary support member; a second step attached to the lower end of the primary support member; a top step attached to the upper end of the primary support member; a spring-loaded lock operatively disposed between the primary support member and the secondary support member for locking the position of the secondary support member relative to the primary support member; at least two stabilizer brackets attached to the primary support member and the secondary support member for stabilizing the ladder module against the tree; and a strap and quick-release buckle attached to the primary support member for holding the ladder module to the tree.
    Type: Grant
    Filed: March 17, 1994
    Date of Patent: August 8, 1995
    Inventor: Joseph R. Jenkins, Jr.
  • Patent number: 5407025
    Abstract: A gripping device is provided for use with vertical or near vertical timbers on building sites, especially with 2".times.4", 2".times.6", or 2".times.8" planks, and which allows such timbers to be used with a series of the devices forming steps of a temporary ladder. The timber may be leaning against a surface, or may be part of a scaffold or studs of a house. The device may be formed of a single piece of rod, or as a casting. It has a closed loop part suitable for use as a step, and also has a retaining part, the retaining part and loop having parallel portions defining an open sided recess for receiving the timber. At least one of the parallel portions has a set of teeth facing the other parallel portion, such that the device can be slid sideways on to a timber and can be pivoted down to cause the teeth to engage the timber and prevent further movement of the device.
    Type: Grant
    Filed: May 17, 1994
    Date of Patent: April 18, 1995
    Inventor: Donald C. Nickel
  • Patent number: 5388664
    Abstract: A portable tree stand is provided for use by a person to climb to and descend from an elevated position next to an upright object. The stand comprises a pole, a clamping assembly attached to the pole near its top end for securing the pole to the upright object, a device on the bottom end of the pole for anchoring it to the ground and upper and lower foot supports for use by the person to climb and descend the pole. Each foot support is slidably mounted on the pole but has a friction device that locks the foot support in a fixed position on the pole in response to a downwardly applied force.
    Type: Grant
    Filed: November 23, 1993
    Date of Patent: February 14, 1995
    Inventor: Eugene A. Bator