Convertible Patents (Class 182/20)
  • Patent number: 9332748
    Abstract: An apparatus to assist with placing a climbing device and safety tether into a tree or other tall upwardly extending object and then securing the climbing device and safety tether to that object, by use of a gripping ring dimensioned to substantially encircle the object and having gripping members disposed along its inner surface to engage with the object, where the gripping ring has a climbing device attachment component to attach the climbing device, such as a ladder or a rope, to the gripping ring, a safety tether attachment component to attach the safety tether to the gripping ring, and a positioning device attachment component to allow a positioning device, such as a pole, to be used to properly position the gripping ring.
    Type: Grant
    Filed: May 30, 2014
    Date of Patent: May 10, 2016
    Inventor: Peter M. Brown
  • Patent number: 9278703
    Abstract: The apparatus transforms between a hand truck configuration and a tripod configuration. The apparatus includes a base frame, wheel axles, a base plate, a plurality of handle rods, and a center rod. The base frame is formed by lateral side supports, a top support member, upper and lower axle support bars, and a middle support member. The middle support member has a receptacle engaging a tool attachment. The base plate is made integral with the base frame, and the base frame extends orthogonally from a top planar surface of the base plate. The handle rods and center rod also extend orthogonally from the top planar surface in the hand truck configuration with the handle rods fixed to the top support member. Handle rods and center rod pivot at angles from the top planar surface in the tripod configuration. The apparatus transforms and inverts between configurations.
    Type: Grant
    Filed: November 6, 2014
    Date of Patent: March 8, 2016
    Inventor: Edmund E. Hollub, IV
  • Patent number: 9243420
    Abstract: A tent for photography includes a ladder assembly and an affiliated tent. The ladder assembly includes two front support legs and two rear support legs. Tops of the front and rear support legs are hinged together. At least one footboard is disposed on the front support legs or between the front and rear support legs. The affiliated tent includes a support rod and a tent cloth. The support rod is composed of rod members connected with each other. Two ends of the support rod after bending form two support legs of the tent. One side of the tent cloth is fixed on the support rod, and the other side is fixed on the ladder assembly. By the tent, a photographer can climb up or lie on the ground during field photographing. The tent provides a place for shading and sheltering from the rain to facilitate outdoor photography work.
    Type: Grant
    Filed: September 5, 2012
    Date of Patent: January 26, 2016
    Assignee: Q-YIELD OUTDOOR GEAR LTD.
    Inventor: Nanqing Zhou
  • Patent number: 9137982
    Abstract: A convertible treestand has been disclosed. The convertible treestand includes a lower standing platform adapted to be secured to a tree and an upper seating platform adapted to be secured to the tree at a position above the lower standing platform and to provide a user with a seat. The lower standing platform includes an outer frame having a front end and first and second spaced-apart sides and a support platform secured between the first and second sides to provide a user with a platform to stand on. The convertible treestand further includes a wheel assembly secured to the lower standing platform in a storage position such that the wheel assembly lies between the first and second sides and in the same plane as the support platform.
    Type: Grant
    Filed: April 22, 2013
    Date of Patent: September 22, 2015
    Inventor: Kevin L. Yoder
  • Patent number: 9109371
    Abstract: Foothold system on a sloped roof includes first flashing block with hole, second flashing block with hole, moveable foothold with hook portion removably inserted into first flashing block hole and lower portion comprising a step portion extending down-roof from hook portion, the moveable foothold moveable from first flashing block to second flashing block via unhooking hook portion from first flashing block and hooking hook portion to second flashing block; flashing blocks may include mounting portion to receive mounting foot for photovoltaic array, and/or step portion sized to receive and support weight of foot of human working on sloped roof.
    Type: Grant
    Filed: August 6, 2013
    Date of Patent: August 18, 2015
    Assignee: SolarCity Corporation
    Inventors: Tyrus Hudson, John R. West
  • Patent number: 9038778
    Abstract: An upright adaptor for a ladder tree stand converts that ladder tree stand into an upright tree stand. The adaptor includes a ladder stand base support which is attachable to the base of a tree and which receives the lower end of the ladder stand. A speed lock assembly is part of the upright adaptor and is attachable to an upper portion of the ladder tree stand. It includes a self-tapping screw and a double-acting ratchet wrench which is operable by a person standing on the ground once the ladder tree stand has been erected.
    Type: Grant
    Filed: April 14, 2014
    Date of Patent: May 26, 2015
    Inventors: Robert Charles Carter, Ferdinand Larsh Carter
  • Publication number: 20140311824
    Abstract: A convertible treestand has been disclosed. The convertible treestand includes a lower standing platform adapted to be secured to a tree and an upper seating platform adapted to be secured to the tree at a position above the lower standing platform and to provide a user with a seat. The lower standing platform includes an outer frame having a front end and first and second spaced-apart sides and a support platform secured between the first and second sides to provide a user with a platform to stand on. The convertible treestand further includes a wheel assembly secured to the lower standing platform in a storage position such that the wheel assembly lies between the first and second sides and in the same plane as the support platform.
    Type: Application
    Filed: April 22, 2013
    Publication date: October 23, 2014
    Inventor: Kevin L. Yoder
  • Publication number: 20140238776
    Abstract: A kit for converting a climbing tree stand into a cart includes a bracket having a first side and a second side. The first side is shaped to attach to a top part of a climbing tree stand. The second side is shaped to attach to a bottom part of the climbing tree stand. At least one wheel with an axle is positioned on the bracket. The bracket converts the climbing tree stand into a cart by attaching the top part of the climbing tree stand to the first side and attaching the bottom part of the climbing tree stand to the second side.
    Type: Application
    Filed: February 22, 2013
    Publication date: August 28, 2014
    Inventor: Brian Charles Vandergraff
  • Patent number: 8801041
    Abstract: A fluid storage container and method is disclosed. The fluid storage container comprises a base frame that supports a tank, a tank for storing fluid, a working surface area walkway built into an end of the tank, a ladder connected near the front of the walkway to the frame, a plurality of handrails on the walkway that can be positioned depending on the required function of the tank, a plurality of strut panels that serve as floorboards on the walkway, a bridge that extends from the left and right sides of the tank to connect to other like tanks, a safety chain that connects between adjacently parked containers, and a dual manifold assembly. A method for configuring the tank's walkways as continuous walkways when parked adjacent to each other is disclosed. A dual manifold system and method for operating the manifolds is also disclosed.
    Type: Grant
    Filed: July 30, 2012
    Date of Patent: August 12, 2014
    Assignee: Pinnacle Companies, Inc.
    Inventors: Brian Barrett, Brian Fowler
  • Patent number: 8708100
    Abstract: A rail-guided climbing system having climbing brackets (36, 38, 40) in which climbing rails (32, 34) are guided, rigidly fixed to a scaffolding unit (12). Each climbing bracket (32, 34) has a joint (52) arranged between a first climbing bracket (40) and a second climbing bracket (38). The free end of the climbing rail (32, 34) may be inserted into a climbing bracket (36, 40) rigidly fixed on the construction (16) and the angular position of adjacent climbing rail sections (48, 50) is adjusted via the joint (52) using an adjuster device (58, 68).
    Type: Grant
    Filed: June 20, 2006
    Date of Patent: April 29, 2014
    Assignee: Peri GmbH
    Inventor: Artur Schwoerer
  • Patent number: 8684139
    Abstract: A step tool has front and rear leg tubes, a bottom and top footplate, a connection device for connecting the footplate and the leg tubes, a lock catch device of the top footplate. The front leg tubes are joined to the rear leg tubes rotatablely. The foreside of the top footplate joins to the front leg tubes rotatablely. A rail is fixed on the rear leg tubes. The lock catch is disposed on the top footplate and is detachly connected to the rail. The lock catch device includes two connecting ears, a rotation axis, a lock catch and a torsion spring.
    Type: Grant
    Filed: November 5, 2009
    Date of Patent: April 1, 2014
    Assignee: New-Tec Integration (Xiamen) Co., Ltd.
    Inventor: Luhao Leng
  • Patent number: 8678329
    Abstract: A device for transporting a ladder has first and second frame positions, the lower ends of which are pivotally mounted on an axle that also mounts a wheel for rolling along the ground. The upper ends of the frame portions are moveable toward and away from each other allowing the device to collapse for storage. A hook is mounted on the upper end of each of the frame portions for attachment to adjacent rungs of the ladder. A strap connects the upper ends of the frame portion to prevent them from separating from each other beyond a given distance.
    Type: Grant
    Filed: October 2, 2008
    Date of Patent: March 25, 2014
    Inventors: Thomas G. Bryant, Sr., Angel M. Feliciano, Jr.
  • Publication number: 20130117999
    Abstract: A work platform for use in performing maintenance while supported on an overhead crane. The work platform is particularly useful for performing maintenance on an overhead cranes located in areas where normal lifting equipment and/or scaffolding cannot easily access the overhead crane. However, the work platform is also useful for performing maintenance on equipment and/or structures in the vicinity of overhead cranes, and on overhead cranes located in areas without accessibility problems. The work platform is hoisted for placement on the support structure of the overhead crane by hoist apparatus of the overhead crane. When positioned, the work platform may be fully supported on the support structure of the overhead crane.
    Type: Application
    Filed: December 19, 2012
    Publication date: May 16, 2013
    Applicant: MHE Technologies, Inc.
    Inventors: Steven K. Waisanen, Fred J. D'Amico, Neal Charles Erikson, Henry Jacob Conrady, III
  • Patent number: 8424639
    Abstract: A combination tree stand and hand truck are herein disclosed, comprising a seat mounted on the bottom of a conventional wheeled hand truck. The rear of the hand truck comprises a plurality of cross members and is attached via a pair of hinges to an additional section of a ladder like structure that is capable of being foldable extended to form a ladder. In use, the wheeled hand truck may be used to transport items to and from a hunting location. Once at a hunting location, the hand truck may be converted into a tree stand by deploying the folding ladder section and placing the deployed stand upside down against a tree or other structure therewith a securing means. The apparatus is particularly useful in game lands and other restricted hunting areas where an all-terrain vehicle or other motorized vehicle is not permitted.
    Type: Grant
    Filed: January 13, 2010
    Date of Patent: April 23, 2013
    Inventor: Gregory J. Davis
  • Publication number: 20130081902
    Abstract: A suspending and moving device has a longitudinal rail, a sliding bracket, at least one vertical rail bracket, a vertical rail positioning device and a movable basket. The longitudinal rail is mounted on a wallboard. The sliding bracket is mounted slidably on the longitudinal rail. The vertical rail is suspended downward from the sliding bracket. The vertical rail positioning device keeps the vertical rail at a distance from the wallboard. The movable basket is mounted slidably on the vertical rail, whereby the movable basket is capable of moving vertically or transversely so that maintenance workers are carried by the movable basket to move or a brush mechanism is mounted on the movable basket to clean the wallboard.
    Type: Application
    Filed: December 5, 2011
    Publication date: April 4, 2013
    Inventor: Fu-Chang LIAO
  • Patent number: 8408361
    Abstract: A ladder assembly includes a ladder, two wheel carriers mounted on the ladder movably and rotatably, two wheels each rotatably mounted on a respective one of the wheel carriers, two fastening members each extended through a respective one of the wheel carriers and each secured on the ladder to attach the respective wheel carrier to the ladder, and a support rack pivotally mounted on the ladder. Thus, when the support rack and the wheels are expanded outward from the ladder, the ladder assembly can function as a carrier, and when the support rack and the wheels are folded onto the ladder, the ladder assembly can function as a ladder so that the ladder assembly both functions as a ladder and a carrier, thereby enhancing the versatility of the ladder assembly.
    Type: Grant
    Filed: May 19, 2010
    Date of Patent: April 2, 2013
    Inventors: Chen-Yu Chung, Zi-Cong Wen
  • Patent number: 8397870
    Abstract: A climbing apparatus that rests on a surface includes a flip ladder that can move between a straight configuration and a stepladder configuration. The apparatus includes a tray having a plane attached to the flip ladder that moves with the flip ladder between the straight configuration where the tray plane is essentially parallel with the ladder in a stowed position and a stepladder configuration where the tray plane is essentially parallel with the surface in an open position. A method for climbing includes the steps of moving a flip ladder between a straight configuration and a stepladder configuration. There is the step of moving a tray having a plane attached to the flip ladder from a stowed position where the tray plane is essentially parallel with the ladder to an opened position where the tray plane is essentially parallel with the surface.
    Type: Grant
    Filed: September 8, 2011
    Date of Patent: March 19, 2013
    Assignee: Werner Co.
    Inventor: Thomas W. Parker
  • Publication number: 20120222913
    Abstract: A multi-functional utility apparatus that is convertible between a scaffold configuration and a pushcart configuration. A pivotal coupling assembly between first and second subframes allows the subframes to be expanded for use as a scaffolding or collapsed for use as a pushcart.
    Type: Application
    Filed: December 1, 2011
    Publication date: September 6, 2012
    Inventors: David C. CALVERT, Christopher R. WEBB, Tsailu LIU, Paul W. HOLLEY, Michael K. THOMPSON, W. Travis LONTZ, Grant L. BITTLE
  • Patent number: 8127890
    Abstract: A step unit includes right and left step frames and two steps coupled to the right and left step frames.
    Type: Grant
    Filed: April 1, 2008
    Date of Patent: March 6, 2012
    Assignee: Cosco Management, Inc.
    Inventors: Thomas J. Meyers, Paul F. Meyers
  • Patent number: 8122998
    Abstract: A device is provided which can be converted from a transporting cart to an erecting hoist for a hunter's tree ladder stand. The device includes components which can be assembled into the cart, disassembled, and re-assembled into the hoist which allows one person to transport the ladder stand, and to raise and lower the ladder stand to and from a position against a tree. The hoist includes a clamp with jaws which can be operated by the hunter on the ground so as to secure the hoist to the tree. A rope or cable extends through a pulley on the hoist so that the ladder stand can be raised into position by a hunter, single-handily. The hunter can then climb the ladder stand, which is secured to the hoist, which is secured to the tree, and further attach the platform of the ladder stand to the tree with one or more straps.
    Type: Grant
    Filed: March 11, 2008
    Date of Patent: February 28, 2012
    Inventor: Dale L. Liles
  • Patent number: 8079444
    Abstract: A transportable, self-erecting, battery powered, vertical lift assembly includes a wheeled frame with a towing attachment mechanism. A linear guide member with an exterior roller chain member is pivotally secured to the frame. A carriage member with attached platform member is movably mounted to the linear guide member adjacent the frame. The carriage member includes an attached drive mechanism with a battery powered DC motor driving a gear unit operatively connected to a sprocket, which engages the roller chain member on the linear guide member. The carriage member and attached platform member are movable along the linear guide member by the drive mechanism to pivot and elevate the guide member, which engages a vertical support structure, and to elevate the carriage member and attached platform member. A safety brake assembly immobilizes the carriage member with respect to the linear guide member upon relative movement between the carriage member and drive mechanism.
    Type: Grant
    Filed: December 8, 2008
    Date of Patent: December 20, 2011
    Assignee: Elevated Technologies, LLC
    Inventors: William J. Rands, Michael S. Schumacher
  • Patent number: 8016076
    Abstract: A climbing apparatus that rests on a surface includes a flip ladder that can move between a straight configuration and a stepladder configuration. The apparatus includes a tray having a plane attached to the flip ladder that moves with the flip ladder between the straight configuration where the tray plane is essentially parallel with the ladder in a stowed position and a stepladder configuration where the tray plane is essentially parallel with the surface in an open position. A method for climbing includes the steps of moving a flip ladder between a straight configuration and a stepladder configuration. There is the step of moving a tray having a plane attached to the flip ladder from a stowed position where the tray plane is essentially parallel with the ladder to an opened position where the tray plane is essentially parallel with the surface.
    Type: Grant
    Filed: December 22, 2006
    Date of Patent: September 13, 2011
    Assignee: Werner Co.
    Inventor: Thomas W. Parker
  • Patent number: 7849961
    Abstract: A ladder has a pair of parallel stiles and a plurality of rungs extending between the stiles. Midway along the length of the ladder is a pair of moveable arms having a first end rotatably attached to one of the stiles and a pair of wheels rotatably attached to the second ends thereof. The arms are moveable between a first position in which the axis of the arms are generally parallel to the axis of the stiles and the axle for the wheels attached to the second end is adjacent to the stiles, and a second position in which the second end of the arms and the wheels attached thereto are spaced from the stile for rolling the ladder across the ground.
    Type: Grant
    Filed: February 1, 2007
    Date of Patent: December 14, 2010
    Inventors: Angel M. Feliciano, Jr., Thomas G. Bryant, Sr.
  • Patent number: 7849964
    Abstract: The present disclosure relates to tree stands which grasp upright columnar members for example, trees, poles, which are arranged to facilitate climbing and adjusting the height of the tree stand to a desired level and angle. When assembled as a cart, the invention consists of an upper climbing member or frame, lower climbing member or frame, a mechanical-interlocking system, an axle, wheels and a wheel attachment device. The two-climbing-member tree stand may be of a manually adjusting type or of a self-adjusting type which permit adjustment of the spacing of the grasping members so as to effect adjustment of the angle of each tree climber relative to the upright columnar member.
    Type: Grant
    Filed: February 17, 2009
    Date of Patent: December 14, 2010
    Inventors: Joseph Amacker, Thomas Lord
  • Patent number: 7828117
    Abstract: A combination chair and ladder assembly including a center leg, a rear leg and a front leg wherein the rear leg is pivotally connected to the center leg and swings outwardly away from the center leg. The assembly includes a lower step or platform assembly including a first platform having first and second portions with a hinge connecting the first and second portions. The front leg is connected to the first platform. In addition, the chair and ladder assembly may include an upper step or platform assembly having a plurality of platforms pivotally connected to the center leg and to a front support member. The lower step or platform assembly operates independently of the upper step or platform assembly.
    Type: Grant
    Filed: December 23, 2005
    Date of Patent: November 9, 2010
    Inventor: Kimberly J. Cole
  • Publication number: 20100243814
    Abstract: A device for selective emergency evacuation of persons from a first level to a second level situated above the first level, or to a third level situated below the first level. For evacuation to the second level a stair arrangement is provided. One end of the device is connected to the first level while the other end is displaceable between the second level and the third level or vice versa. For evacuation to the third level, the device is changeable to a slide. The device may provide for emergency evacuation of persons from a first level deck, or passenger deck of a blended wing-body aircraft, selectively to the top, second level of the aircraft, or to the bottom third level of the aircraft.
    Type: Application
    Filed: September 14, 2006
    Publication date: September 30, 2010
    Applicant: Airbus Deutschland GmbH
    Inventors: André Anger, Wolfram Schöne
  • Patent number: 7802654
    Abstract: A climbing tree stand platform includes a platform member having a back member and a front member separated by a first side member and a second side member, a first arm and a second arm that each extend angularly upward from the platform toward the back member, and a securing member connected between the first arm and the second arm. A first elasticized member having a first end is connected to the platform member toward the first side member and a second elasticized member having a first end is connected to the platform member toward the second side member. The back member of the platform member may selectively engage an upright support or tree while the securing member selectively surrounds it, thereby providing cantilevered support for the platform member. The first elasticized member and the second elasticized member are operatively attachable to a second platform member. A climbing tree stand system is also provided.
    Type: Grant
    Filed: April 10, 2006
    Date of Patent: September 28, 2010
    Inventors: Randy Tolliver, Robert Tolliver
  • Publication number: 20100140016
    Abstract: A vehicle equipped with a lifting arm assembly includes a chassis structure with a cabin and a lifting arm assembly fastened on top of the chassis structure so that it turns around a vertical rotating by a rotating base. For folding, the lifting arm assembly is positioned behind the cabin in two positions. In a rescue vehicle the lifting arm assembly also includes at least an arm that can be outstretched to a standby position on top of the cabin. A third arm is fastened to a second arm to rotate in the vertical direction so that in the transport position of the lifting arm assembly the third arm can be turned under the second arm or next to it, and the rotating base is also positioned under the central part of the second arm when the lifting arm assembly is in the transport position.
    Type: Application
    Filed: July 24, 2007
    Publication date: June 10, 2010
    Inventor: Esko Raappana
  • Patent number: 7607513
    Abstract: A hand truck having a folding platform attached to a wheeled base. The base having an arrangement of stabilizing bars and feet and vertically extensible masts that raise and lower the folding platform by operation of a motor attached to the base. The platform of the hand truck, when in the extended position, has modular removable railings attached along the perimeter of different platform sections. The platform is collapsible about pivot pins and suspended by chains attached to brackets atop the extensible masts.
    Type: Grant
    Filed: November 29, 2007
    Date of Patent: October 27, 2009
    Inventor: Elmo Rojas
  • Publication number: 20090205905
    Abstract: The present disclosure relates to tree stands which grasp upright columnar members for example, trees, poles, which are arranged to facilitate climbing and adjusting the height of the tree stand to a desired level and angle. When assembled as a cart, the invention consists of an upper climbing member or frame, lower climbing member or frame, a mechanical-interlocking system, an axle, wheels and a wheel attachment device. The two-climbing-member tree stand may be of a manually adjusting type or of a self-adjusting type which permit adjustment of the spacing of the grasping members so as to effect adjustment of the angle of each tree climber relative to the upright columnar member.
    Type: Application
    Filed: February 17, 2009
    Publication date: August 20, 2009
    Applicant: AMACKER LLC
    Inventors: Joseph AMACKER, Thomas LORD
  • Publication number: 20090188444
    Abstract: A method and apparatus are provided, for allowing pets to ascend and descend on a foldable staircase having a plurality of stair treads operatively connected by articulating links in such a manner that the treads can be pivoted in unison from a stowed position of the staircase, in which the treads are substantially stacked upon one another, to a plurality of extended positions, in which the links position the treads in a spaced and parallel relationship to one another. A latch selectively secures the staircase in a selected one of the extended positions. The latch is configured for preventing further pivoting of the treads in either direction between the stowed and extended positions of the staircase, when the latch is engaged.
    Type: Application
    Filed: April 10, 2009
    Publication date: July 30, 2009
    Inventor: Robert F. Whalen
  • Publication number: 20090178884
    Abstract: A combination treestand and game carrier enables ready conversion between the operating modes. A kit enables modification of pre-existing treestands to be configured into a game carrier.
    Type: Application
    Filed: January 9, 2009
    Publication date: July 16, 2009
    Inventors: Charles Joseph Maletestinic, Vincent Lawrence Radic, JR.
  • Patent number: 7487859
    Abstract: A combination hand truck ladder, which includes two front rails, two rear rails pivoted to the front rails, two folding braces coupled between the front rails and the rear rails, platforms pivoted to the front rails at different elevations and linked by two links, two wheels respectively pivoted to the bottom ends of the rear rails, two slides respectively affixed to the rear rails and slidably coupled to the links, a carrier shell pivoted to the front rails at the bottom side, and a hand truck handle affixed to the top ends of the rear rails.
    Type: Grant
    Filed: September 14, 2005
    Date of Patent: February 10, 2009
    Inventor: Sheng-Shih Wang
  • Publication number: 20080283334
    Abstract: The present invention is a portable self contained tree stand for elevating hunters above the ground. The tree stand comprises a motorized winch for elevating the hunter and for dragging animal carcasses. The present invention also has a lower attachment tube for adding various accessories, such as gambrels, footrests, trailer hitches, or skinning cables. In addition, the tree stand of the present invention has a remote control for operating the motorized winch. Moreover, a power supply for operating the winch can also be used for powering various other auxiliary devices, such as heating blankets or personal electronic devices.
    Type: Application
    Filed: January 8, 2008
    Publication date: November 20, 2008
    Inventors: Edsel Wakefield Fickey, Hunter Wakefield Fickey
  • Patent number: 7409921
    Abstract: A sea perch apparatus includes a platform configured to be located between a pair of spaced-apart sea perch support members located along a side or end of a boat. The platform is designed to be elevated so as to be in an upright position between the sea perch support members and lowered so as to be in a horizontal lower position near a waterline in which the boat is flowing when in the water. The platform serves as a guardrail between the sea perch support members, and when the platform is in the lower position, it serves as a swimming dock, tanning deck and further serves to facilitate easier embarking and disembarking to and from another boat. The platform is transformable into a seat when upright with arm rest. When upright, it is locked in place on either side of the upper side of the platform.
    Type: Grant
    Filed: June 1, 2007
    Date of Patent: August 12, 2008
    Assignee: Robertson & Gaine (Pty) Ltd.
    Inventor: Clinton Jones
  • Patent number: 7383600
    Abstract: A convertible dock ramp has an upper end pivotally mounted to a mounting structure, and a lower end resting on a second structure. The dock ramp includes a pair of spaced-apart side frames each including upper and lower rails; and a plurality of steps each including a tread surface and a bottom surface connected by spaced-apart curved front and rear surfaces. The steps are pivotally mounted between the side frames such that the tread surfaces remain substantially parallel to each other as the side frames pivot. The steps are pivotable between: a ramp configuration in which the tread surfaces collectively form a flat ramp surface; and a stair configuration in which the tread surfaces collectively form a staircase-like structure. A changeover mechanism selectively retains the convertible dock ramp in the ramp configuration or the stair configuration.
    Type: Grant
    Filed: January 8, 2007
    Date of Patent: June 10, 2008
    Inventor: Stephen A. Carrigan
  • Publication number: 20070193825
    Abstract: A tree-step system includes a fastener configured to be coupled to a vertical member, and a step component including a body, a weight-bearing member coupled to the body, and a light source associated with the weight-bearing member, wherein the light source indicates a location of the weight-bearing member.
    Type: Application
    Filed: February 15, 2007
    Publication date: August 23, 2007
    Inventors: Travis Liermann, Laree Liermann, Bradley Navarro, Kelly Navarro
  • Patent number: 7210560
    Abstract: A platform structure has at least two articulated platforms that can extend end-to-end to form a bench type arrangement. For ease of portability, the structure includes wheels so that it can be carted when it is in a stow position. The structure can include a detachable canopy frame and a canopy, which provides protection from the element, namely rain, snow, sun, and wind. The canopy can have a camouflaged pattern so that it can blend into the surrounding. When the canopy is camouflaged, the structure is instantly converted into a hunting blind. In addition, a mounting mechanism is provided to mount the platform structure to another structure.
    Type: Grant
    Filed: April 21, 2004
    Date of Patent: May 1, 2007
    Inventor: Daniel J. Brink
  • Patent number: 7168522
    Abstract: A crane mechanism for raising a hunting blind or similar large object up along the side of a tree trunk, the crane using the vertical tree trunk as its support tower. The crane is generally L-shaped in use, having a vertical trunk-securing arm adapted to be temporarily secured directly against the side of the tree trunk above the installation height of the object to be raised, a perpendicular boom extending away from the tree trunk, and a hoist mechanism on the boom spaced from the tree trunk. A separable hoist drive can be used, for example mounted to the base of the tree trunk in the same manner as the vertical trunk-securing arm.
    Type: Grant
    Filed: November 7, 2003
    Date of Patent: January 30, 2007
    Assignee: High House Blinds, LLC
    Inventor: Terry L. Price
  • Patent number: 7159261
    Abstract: A convertible dock ramp has an upper end for being pivotally mounted to a mounting structure, and a lower end for resting on a second structure. The convertible dock ramp includes a pair of spaced-apart side frames each including upper and lower rails; and a plurality of steps each including a tread surface. The steps are pivotally mounted between the side frames such that the tread surfaces remain substantially parallel to each other as the side frames pivot about the upper end. The steps are pivotable between: a ramp configuration in which the tread surfaces collectively form a substantially flat ramp surface; and a stair configuration in which the tread surfaces collectively form a staircase-like structure. A changeover mechanism selectively retains the convertible dock ramp in the ramp configuration or the stair configuration. A safety stair tread deflects upward as needed to prevent trapping a user's foot.
    Type: Grant
    Filed: April 5, 2005
    Date of Patent: January 9, 2007
    Inventor: Stephen A. Carrigan
  • Patent number: 7156204
    Abstract: A portable workstation has an integrated container, hand truck, and easily removable ladder. Wheels or casters are provided to make the device easily portable. An integrated removable ladder is used to push and guide or steer the device. The combination yields a portable workstation.
    Type: Grant
    Filed: May 26, 2004
    Date of Patent: January 2, 2007
    Inventor: Gary R. Gross
  • Patent number: 7121381
    Abstract: A system and method for providing an improved ladder for enabling a user to climb up or down and forward or backwards movement relative to a surface. The system enables increased mobility and stability. The system can be designed in multiple ways which some of them have been shown in the present invention. The present invention clearly saves production time, keeping the user on the ladder while relocating, and it definitely more convenient and time saving to the user.
    Type: Grant
    Filed: July 15, 2004
    Date of Patent: October 17, 2006
    Inventor: Moti Shai
  • Patent number: 7093840
    Abstract: A multi-purpose combined ladder/cart assembly capable of being converted into a plurality of ladder and cart configurations, including an extension ladder, a step ladder, a load-carrying cart, a pull cart, and a hand truck. The multi-purpose combined ladder/cart assembly includes a plurality of frame members that are pivotal with respect to each other and capable of being retained in variety of desired positions in order to easily configure the assembly in any of its various configurations. The travel characteristics and center of gravity of the cart configurations of the assembly are variably selectable, depending upon the load to be carried, by simply selecting various combinations of differently sized wheels to attach to the assembly.
    Type: Grant
    Filed: March 1, 2004
    Date of Patent: August 22, 2006
    Assignee: Isotec, Inc.
    Inventors: Jeffrey T. Lucas, Eric McClure
  • Patent number: 6948587
    Abstract: An elevated platform configurable for use in cooperation with a tree or pole, or as a free-standing unit. A triangular assembled configuration provides maximum safety and rigidity with a minimum complexity and weight. Interchangeable components, universal connectors, and tool-free assembly result in ease and speed for assembly and disassembly. The platform is adaptable for use in any number of configurations and is transformable into a trailer for towing by a person, ATV, or vehicle. Additionally, a gun/camera rail, bow rack, weather resistant shelter, and a swivel seat provide improved comfort for extended use.
    Type: Grant
    Filed: August 12, 2003
    Date of Patent: September 27, 2005
    Inventor: Donne Griffiths
  • Patent number: 6896273
    Abstract: A dolly is disclosed for transporting a ladder. The dolly has a main frame, a ladder brace, and a ladder stop. The main frame has a first end, second end, and a single longitudinal frame member extending between the first end and the second end. The ladder brace upwardly extends from the first end of the main frame and supports one end of the ladder. The ladder stop upwardly extends from the second end of the main frame and engages a rung of the ladder. The dolly extends in length and height to accommodate various ladder lengths, and the dolly collapses for easy carrying and stowing. The dolly allows a user to transport the ladder with less lifting and, thus, less injury.
    Type: Grant
    Filed: June 26, 2002
    Date of Patent: May 24, 2005
    Inventors: Kevin Forsberg, Isaac D. M. White
  • Patent number: 6880835
    Abstract: A combination hand truck, dolly and step ladder device includes a hand truck frame and a step ladder frame that are pivotally attached to one another and can be fixed at selective angles with respect to each other to form a hand truck, a dolly and a step ladder. In a step ladder configuration, the top step of a step assembly is secured to a cross member of the hand truck frame so as to lock the hand truck frame and the step ladder frame into a substantially fixed relationship to one another. In a dolly configuration, the hand truck frame becomes the handle for the dolly, and is held in place by a support bar that pivotally attaches to the hand truck frame and secures to the step ladder frame.
    Type: Grant
    Filed: April 11, 2003
    Date of Patent: April 19, 2005
    Assignee: Sylmark Holdings Limited
    Inventors: Dean Tornabene, Mitchell H. Babkes, Henry J. Howell
  • Patent number: 6877586
    Abstract: A multi-use move, lift, and support device is disclosed. The device is made of a step ladder frame containing a plurality of steps and a hand truck frame. At least one hinge pivotally connects the step ladder frame to the hand truck frame. An anti-wobble hook may be used to lock the frames in a step ladder configuration. The hook is moved in position by the force of gravity.
    Type: Grant
    Filed: September 25, 2003
    Date of Patent: April 12, 2005
    Assignee: Sylmark Holdings Limited
    Inventors: Mitchell H. Babkes, Brian Fitzburgh, Mark Ellis
  • Patent number: 6860364
    Abstract: A cart and ladder combination includes a plurality of bars such that a first bar and a second bar are defined. A first coupler is adapted for releasably coupling the first and second bars together in a spaced relationship to each other. A second coupler is adapted for releasably coupling the first and second bars together in a spaced relationship to each other. A wheel assembly is removably attached to the first ends of the first and second bars. A cord member is selectively strung between the first and second bars. The second end of the first bar may be selectively attached to the first end of the second bar to form a ladder.
    Type: Grant
    Filed: January 28, 2003
    Date of Patent: March 1, 2005
    Inventor: John B. Deemer
  • Patent number: 6843347
    Abstract: A multipurpose step stool includes two substantially parallel, congruent, triangular side support members. The triangular side support members each include first, second, and third resting edges adapted to contact a supporting surface such as a floor. The first treads are oriented parallel to the first resting edges, the second treads are oriented parallel to the second resting edges, and the platform is oriented parallel to the third resting edges.
    Type: Grant
    Filed: January 8, 2003
    Date of Patent: January 18, 2005
    Assignee: RDL Investments, LLC
    Inventors: Thomas Lamberson, Michael R. Webb, Richard C. Kochawski, Gene Gladkov, Robert D. Heckel, II
  • Publication number: 20040200667
    Abstract: One embodiment of the present invention provides a multi-use move, lift, and support device. The device is made of a step ladder frame containing a plurality of steps and a hand truck frame. At least one hinge pivotally connects the step ladder frame to the hand truck frame. An anti-wobble hook may be used to lock the frames in a step ladder configuration. The hook is moved in position by the force of gravity.
    Type: Application
    Filed: September 25, 2003
    Publication date: October 14, 2004
    Inventors: Mitchell H. Babkes, Brian Fitzburgh, Mark Ellis