Ladder Patents (Class 182/194)
  • Patent number: 9278616
    Abstract: The invention relates to an operating fluid container for a motor vehicle, said container including a container body which is assembled from at least two injection-molded shells of thermoplastic plastics material which are complementary to each other. The shells are provided in each case with integrally molded structures which extend into the free container volume in such a manner that they bring about a restriction of a fluid surge created, for instance, in the container. At least some of the structures on each of the two shells are welded together at least in part or in a punctiform manner approximately in the joining plane of the container.
    Type: Grant
    Filed: September 20, 2012
    Date of Patent: March 8, 2016
    Assignee: Kautex Textron GmbH & Co. KG
    Inventor: Christian Kopiec
  • Patent number: 9109370
    Abstract: The invention relates to a scaffolding post (25) made of metal, including a tube (26) and a tubular tube connector (27) integrally molded therewith. In a transition region between the tube connector (27) and the tube (26) a stop (46) is formed, the stop being in the form of an annular post-supporting end face (50) running perpendicularly to the longitudinal axis of the scaffolding post (25) and circumferentially around the longitudinal axis. The slide-on area (37) of the tube (26) has a plurality of indentations (86), each extending in the direction of the longitudinal axis of the scaffolding post (25) and each being designed with a tube inner cross-section reduction. The indentations are arranged distributed in the circumferential direction around the longitudinal axis of the scaffolding post (25) at regular intervals or equidistant and each extends continuously for a length in the tube slide-on region (37), starting directly from a tube-supporting end face in the direction of the tube connector (27).
    Type: Grant
    Filed: January 9, 2012
    Date of Patent: August 18, 2015
    Assignee: Wilhelm Layher Verwaltungs-GmbH
    Inventor: Helmut Kreller
  • Publication number: 20150114755
    Abstract: A marine ladder comprising a pair of laterally spaced step support members having a plurality of steps secured therebetween; said steps positioned between a lower portion and an upper portion of said step support members; an attachment member to secure said ladder to a platform; an adjustable support leg extending outwardly to abut a portion of said platform thereby positioning said steps in a generally horizontal plane; and wherein each successive step from said upper portion to said lower portion has a larger step tread than a preceding step.
    Type: Application
    Filed: October 31, 2014
    Publication date: April 30, 2015
    Inventor: Rosalie Helen EAMES
  • Publication number: 20150075908
    Abstract: A visual indicator for a ladder is provided which may include a component having a photo luminescent material, a component have a reflective material, or both. In one embodiment, the visual indicator includes a rung plug having a cap portion and a body portion, the body portion being configured to be inserted into the interior hollow of a ladder rung such that the cap portion is visible along the side of an associated ladder rail. The cap portion may comprise a photo luminescent material, a reflective material or both. In one embodiment, the cap portion comprises a photo luminescent material while a separate reflective indicator is placed on the ladder rail at a location adjacent the rung plug.
    Type: Application
    Filed: September 18, 2014
    Publication date: March 19, 2015
    Inventors: N. Ryan Moss, Joe Bloomfield, Sean R. Peterson, Brian B. Russell, Steve Puertas
  • Patent number: 8936134
    Abstract: A three-step pool ladder having the capability to have a fourth step and/or a curve-about ladder apparatus.
    Type: Grant
    Filed: August 19, 2013
    Date of Patent: January 20, 2015
    Assignee: Confer Plastics, Inc.
    Inventor: David J. Lipniarski
  • Patent number: 8925686
    Abstract: A collapsible staircase is provided with a set of flat parts, with each of the parts intended to function as steps. Each flat part can be moved between a first position and a second position. All of the flat parts are substantially coplanar when the parts are in the first position, and the parts are disposed above each other and at a distance from each other when the parts are in the second position. A retractable holding handle is also provided and driven together with the flat parts.
    Type: Grant
    Filed: December 26, 2007
    Date of Patent: January 6, 2015
    Assignee: Airbus
    Inventors: Bruno Saint-Jalmes, Jason Zaneboni, Bernard Rumeau
  • Publication number: 20140353084
    Abstract: The present invention relates to a swimming pool structure with steps and handrails, installed inside a swimming pool to permit entering and exiting a pool. An anti-slip surface is incorporated into the steps and handrails, which improves friction between the structure and a user's feet and hands to promote safety when entering and exiting a swimming pool. The anti-slip surface is an overmolded coating that covers all parts of the structure that come into contact with the user's body. The overmolded coating is an elastomeric material such as a thermoplastic or natural elastomer with rubber-like features.
    Type: Application
    Filed: June 3, 2013
    Publication date: December 4, 2014
    Applicant: CANADIAN PLASTICS INC.
    Inventor: Robert LAFONTAINE
  • Publication number: 20140311830
    Abstract: A dual-use ladder and bridge modular system preferably includes tubes, gussets, flanges, and/or joints. In a preferred embodiment, the tubes, gussets, flanges, and/or joints are made of carbon fiber. A method connects and disconnects modular carbon fiber ladder segments. Another method creates a lightweight carbon-fiber beam with exceptionally high stiffness and strength using a combination of carbon-fiber braid material, uni-directional cloth, and pultruded carbon-fiber strips. A carbon fiber ladder segment and tube connectors are also disclosed.
    Type: Application
    Filed: July 3, 2014
    Publication date: October 23, 2014
    Inventors: Jimmie B. Allred, III, Joseph Kummer, Michael D. Griswold, Michael J. Hall
  • Publication number: 20140231172
    Abstract: The invention relates to an extendable/retractable ladder mounted to a boat trailer to allow access to a boat carried on the trailer. The ladder includes a pair of first vertically oriented bars and a pair of second bars. The vertically oriented bars have an inner cavity and a slot in one of its sides. The second bars have an inner cavity and a slot in one of its sides. The first end of the first bars and the second end of the second bars are connected such that the second end of the second bars can move along the length of the first bars between an extended position in which the first end of the second bars is a distance away from the first bars and a retracted position in which the first end and the second end of the second bars are adjacent to the first bars.
    Type: Application
    Filed: December 17, 2013
    Publication date: August 21, 2014
    Inventor: Robert Gail Stewart
  • Patent number: 8807278
    Abstract: A hunting stand apparatus includes a pair of posts each having a bottom end and a top end. Each of the posts is telescoping and includes a same number of a plurality of tubular members such that sets of tubular members are defined. Each of a plurality of rungs is attached to and extending between tubular members of each set. A plurality of locking members is provided for locking the sets in an extended position. A seat has a front edge pivotally coupled to an upper most one of the rungs. A pair of brackets is also provided. Brackets are attached to each of the posts. Each of a pair of supports is removably attached to and extends between one of the brackets and a back edge of the seat such that the seat is angled with respect to the posts.
    Type: Grant
    Filed: September 24, 2011
    Date of Patent: August 19, 2014
    Inventors: Kevin S. Galloway, David E. Johnson
  • Publication number: 20140182969
    Abstract: A platform is provided with a ladder to allow the user to easily ascend to the platform. A pair of stabilizing arms and jaws provides lateral stability to the ladder. A climbing stick has a pair of vertical posts attached between the front and rear walls of steps to provide a secure connection. The upper and lower ends extend inwardly and away from each other to provide a gripping surface. A tree stand has a male adapter with a bracket for securing a strap. The strap is used to secure the male adapter in place. Once secured to the tree, the platform area can be attached to the male adapter using a female adapter. The ability to first secure the smaller, lighter bracket and male adapter to a tree before attaching the platform using a female adapter increases the ease in securing the tree stand to a tree.
    Type: Application
    Filed: January 3, 2014
    Publication date: July 3, 2014
    Inventor: Anthony D OVERBAUGH
  • Publication number: 20140158465
    Abstract: A ladder assembly for a work vehicle is disclosed. The ladder assembly may generally include a ladder having a first side rail, a second side rail and first and second rungs extending between the first and second side rails. The ladder may be supported on the work vehicle at a first pivot point and a second pivot point. The ladder may also include a first linkage and a second linkage. The first linkage may be coupled between the first rung and the first pivot point and the second linkage may be coupled between the second rung and the second pivot point. In addition, the ladder may be configured to pivot about the first and second pivot points between a first position and a second position.
    Type: Application
    Filed: December 12, 2012
    Publication date: June 12, 2014
    Applicant: CNH America LLC
    Inventor: Eran Salzman
  • Patent number: 8720643
    Abstract: The aquatic ladder has wide, deep treads, arranged like a staircase, with side and upper railings to make it easy to enter or exit the water, even by elderly people, tired individuals, those carrying aquatic equipment, such as SCUBA gear or water skis, and, even, by pets. The ladder is preferably made from aluminum, although it can be made of other materials, such as steel (e.g., stainless or galvanized), fiberglass, plastic, or other composites.
    Type: Grant
    Filed: April 17, 2012
    Date of Patent: May 13, 2014
    Inventor: Michael Ray Adair
  • Patent number: 8708102
    Abstract: A ladder constructed for reaching an elevated surface or object and having a bow-shaped configuration so that the reach may extend further from the base on which the footing of the ladder rests, the ladder being configured to reach areas such as the roof of a vehicle.
    Type: Grant
    Filed: June 14, 2012
    Date of Patent: April 29, 2014
    Inventor: Larry Mickens
  • Publication number: 20140102830
    Abstract: A fiberglass reinforced lightweight heavy-duty ladder, and method of making the same, is presented. The method includes impregnating rovings with a resin system and forming the impregnated rovings into a set of rails having a center portion, a left sidewall portion, and a right sidewall portion, where the left sidewall portion and the right sidewall portion each have an article roving density at least 10% greater than that of the center portion.
    Type: Application
    Filed: October 15, 2013
    Publication date: April 17, 2014
    Inventor: Nasir U. Ahmed
  • Publication number: 20140069742
    Abstract: A three-step pool ladder having the capability to have a fourth step and/or a curve-about ladder apparatus.
    Type: Application
    Filed: August 19, 2013
    Publication date: March 13, 2014
    Inventor: David J. Lipniarski
  • Patent number: 8602164
    Abstract: A dual-use ladder and bridge modular system preferably includes tubes, gussets, flanges, and/or joints. In a preferred embodiment, the tubes, gussets, flanges, and/or joints are made of carbon fiber. A method connects and disconnects modular carbon fiber ladder segments. Another method creates a lightweight carbon-fiber beam with exceptionally high stiffness and strength using a combination of carbon-fiber braid material, uni-directional cloth, and pultruded carbon-fiber strips. A carbon fiber ladder segment and tube connectors are also disclosed.
    Type: Grant
    Filed: May 31, 2012
    Date of Patent: December 10, 2013
    Assignee: Allred & Associates Inc.
    Inventors: Jimmie B. Allred, III, Joseph Kummer, Michael D. Griswold, Michael J. Hall, Matthew A. Bush
  • Publication number: 20130161127
    Abstract: A dual-use ladder and bridge modular system preferably includes tubes, gussets, flanges, and/or joints. In a preferred embodiment, the tubes, gussets, flanges, and/or joints are made of carbon fiber. In one embodiment, a removable platform converts the segmented ladder system into a bus assault ladder/platform. Another preferred embodiment includes a bridge conversion kit. Yet another preferred embodiment includes a stretcher cover. When none of the bus assault platform, the bridge conversion kit, or the stretcher cover are needed, the ladder can be used as normal, or stored in a carry bag.
    Type: Application
    Filed: February 19, 2013
    Publication date: June 27, 2013
    Applicant: ALLRED & ASSOCIATES INC.
    Inventor: ALLRED & ASSOCIATES INC.
  • Publication number: 20130140109
    Abstract: A ladder is designed for a tank having a vertically extending side wall and a top of a convex curved profile, with an access point near the top center of the convex curved top, the ladder having a pair of parallel side rails, each side rail having a straight section at one end and a curved section at the other end, the curved section extending over the top of the tank and toward the access point, with plurality of rungs extending between and secured to the side rails, with at least one rung positioned in the straight section of the side rails and at least one rung positioned in the curved section of the side rails. A separate hand grip may be mounted on the tank between the ladder and the access point of the tank.
    Type: Application
    Filed: June 7, 2012
    Publication date: June 6, 2013
    Inventor: Steven Richard Ambriz
  • Patent number: 8418811
    Abstract: Climbing products containing rails decorated using veil products colored, patterned, painted or in combination with marking methods such as company names and logos and resin formulation designed to withstand exposure to UV radiation with minimal change in appearance which create specific appearances for applications, enhance weathering performance, and facilitate processing efficiency. A combination of a filler free resin and coated veil systems to create a synergistic weather resistance surface with self contained color, pattern, picture, logo or combination of said same for climbing products. A system for producing components. Various methods, system, a ladder rail.
    Type: Grant
    Filed: September 29, 2008
    Date of Patent: April 16, 2013
    Assignee: Werner Co.
    Inventor: Richard M. Kelly
  • Patent number: 8381877
    Abstract: Disclosed herein is a ladder assembly consisting of a plurality of ladder segments each comprising a pair of identical rails, a third rail disposed medially between the parallel rails but not in the same plane, a plurality of rungs forming steps perpendicularly positioned and attached to the parallel rails but each diverted medially to attach to the third rail, and a plurality of joints sized to join each segment end-on-end to form the assembly, but with the proviso that in any ladder assembly having at least three segments, one of the third rails in the assembly is shorter than the other rails.
    Type: Grant
    Filed: July 28, 2010
    Date of Patent: February 26, 2013
    Inventor: Paul E. Freund
  • Publication number: 20120285771
    Abstract: An improved ladderway system 30 for an underground raise. The system comprises an elongate tube 32 made of a suitably rigid plastics material and adapted to be received in the raise. The tube has a series of steps 34 moulded into an interior side wall thereof so as to form a ladder extending substantially the full length of the tube 32.
    Type: Application
    Filed: December 24, 2010
    Publication date: November 15, 2012
    Applicant: HIRAM (WA) PTY LTD
    Inventor: Steven Peter Durkin
  • Publication number: 20120267197
    Abstract: An extendable/retractable ladder assembly includes a first stile and a second stile and a plurality of rungs extending therebetween. Each stile may comprise a plurality of columns disposed in a nested arrangement for relative axial movement in a telescopic fashion. A connector assembly connects the rungs to respective columns in the first and second stiles. The ladder has improved manufacturability since connector assemblies may be assembled before connecting the rungs to respective columns. The standing surface of the rungs may be angled such that it is rotated towards horizontal when the ladder assembly is leaned against a wall. A latch assembly may be used to selectively lock relative axial movement between adjacent columns. The latch assembly includes a locking pin assembly comprised of a central post and an outer metal sleeve. An air damper may also be used to control airflow through the columns.
    Type: Application
    Filed: June 26, 2012
    Publication date: October 25, 2012
    Applicant: CORE DISTRIBUTION, INC.
    Inventors: Mitchell I. Kieffer, Allen A. Caldwell, Nathan L. Schlueter, Matthew J. Decker
  • Publication number: 20120247871
    Abstract: A ladder constructed for reaching an elevated surface or object and having a bow-shaped configuration so that the reach may extend further from the base on which the footing of the ladder rests, the ladder being configured to reach areas such as the roof of a vehicle.
    Type: Application
    Filed: June 14, 2012
    Publication date: October 4, 2012
    Inventor: Larry Mickens
  • Publication number: 20120241254
    Abstract: An accommodation ladder includes a body having opposite sides, an upper, and rear and bottom surfaces. The body is formed of a compressible material, such as dense foam material, and the upper surface of the body forms a staircase with a plurality of steps. Spaced stanchions extend upwardly from the staircase and stanchion pipes extend through the body and receive lines therethrough to secure the body to a marine structure. The spaced stanchions are adapted to accommodate a plurality of releasable safety lines therebetween. A method of facilitating access between adjacent first and second marine structures includes arranging the staircase accommodation ladder between the structures, the accommodation ladder being a fender between such structures.
    Type: Application
    Filed: March 24, 2011
    Publication date: September 27, 2012
    Applicant: MANSON CONSTRUCTION CO.
    Inventor: Thomas J. Grey
  • Publication number: 20120241256
    Abstract: A ladder is designed for a tank having a vertically extending side wall and a top of a convex curved profile, with an access point near the top center of the convex curved top, the ladder having a pair of parallel side rails, each side rail having a straight section at one end and a curved section at the other end, the curved section extending over the top of the tank and toward the access point, with plurality of rungs extending between and secured to the side rails, with at least one rung positioned in the straight section of the side rails and at least one rung positioned in the curved section of the side rails.
    Type: Application
    Filed: June 7, 2012
    Publication date: September 27, 2012
    Inventor: Steven Richard Ambriz
  • Publication number: 20120228061
    Abstract: Ladders, ladder components and related methods are provided. In some embodiments, adjustable stepladders are provided which include locking mechanisms that enable height adjustment of the ladder through application of a force towards the rails of the ladder. In other embodiments, spreader mechanisms are provided with cross bracing located and configured to provide additional stability to the ladder while also incorporating a handle that enables efficient collapsing of the ladder while reducing the potential of pinching ones hands or fingers. In another embodiment, a device is provided for selective coupling with the ladder that includes a support or safety rail and an adjustable tray. The device may be coupled with the ladder in a number of different positions including a stowed position. In another embodiment, a hinge assembly is provided having a magnetic component configured to be magnetically coupled with and temporarily store an object on the ladder.
    Type: Application
    Filed: May 25, 2012
    Publication date: September 13, 2012
    Applicant: WING ENTERPRISES, INC.
    Inventors: N. Ryan Moss, Ryan Crawford, Keith Emmel
  • Patent number: 8215453
    Abstract: A ladder constructed for reaching an elevated surface or object and having a bow-shaped configuration so that the reach may extend further from the base on which the footing of the ladder rests, the ladder being configured to reach areas such as the roof of a vehicle.
    Type: Grant
    Filed: April 8, 2009
    Date of Patent: July 10, 2012
    Inventor: Larry Mickens
  • Publication number: 20120125715
    Abstract: A modular tree climbing ladder including a support member, at least one stabilizing bracket secured to the support member, and a pair of steps pivotally secured to the support member. The support member includes a front piece and a rear piece configured to form two channels that oppose one another and form an interior angle of less than 180 degrees. The steps are each pivotally secured to the support member within one of respective said opposing channels such that each of said steps oppose one another and form an angle equal to said interior angle. The steps are independently rotatable from a vertical (or storage) position to a horizontal (or operational) position. The steps include a stepping surface and are secured to said support member such that respective stepping surfaces are coplanar when both steps are in the horizontal position. The modular tree climbing ladder can further include a securing belt mounting bracket that is secured to the support member.
    Type: Application
    Filed: March 15, 2011
    Publication date: May 24, 2012
    Applicant: Ardisam, Inc.
    Inventors: Michael R. Furseth, Randy L. Schamberger, Benjamin T. Nelson
  • Publication number: 20120090919
    Abstract: The invention relates to a ladder that is configured to be mounted to a boat trailer to allow access to a boat carried on the trailer. The ladder includes a pair of first vertically oriented bars, a pair of second bars and a pair of third bars. The pair of first, vertically oriented bars have a length defined between a first end and a second end, an inner cavity passing between the first end and the second end, at least two sides, and a slot in one of the sides extending from the first end in the direction of the second end.
    Type: Application
    Filed: November 3, 2010
    Publication date: April 19, 2012
    Inventor: Robert Gail Stewart
  • Patent number: 8157054
    Abstract: The aquatic ladder was designed for ease of use, rather than ease of storage. It has wide, deep treads, arranged like a staircase, with side and upper railings which make it easy to enter or exit the water, even by elderly people, tired individuals, those carrying aquatic equipment, such as SCUBA gear or water skis, and, even, by pets. In the preferred embodiment, the aquatic ladder includes upper railings which each have an inverted ā€œUā€ shape, and the distal end of those railings have hinged brackets for mounting the aquatic ladder to an object to be boarded. In an alternative embodiment, the aquatic ladder is mounted on a sliding rail, such that it can be raised, vertically, from the water, when it is not being used. The vertical portions of the ladder are short, relative to the overall height of the ladder whereby less material is used to manufacture the ladder, while making its shipment and storage easier.
    Type: Grant
    Filed: December 15, 2008
    Date of Patent: April 17, 2012
    Inventor: Michael Ray Adair
  • Publication number: 20120080271
    Abstract: A method of providing a traversable path along a surface, the method including the steps of placing a portable pathway onto the surface, the portable pathway having a frame member comprising at least a first layer, and at least one adjustable step coupled with the frame member. The method further includes securing the portable pathway in situ, and adjusting the step to a desired position.
    Type: Application
    Filed: March 22, 2011
    Publication date: April 5, 2012
    Inventor: Martin D. Stanaland
  • Publication number: 20120061182
    Abstract: An indexing hinge may be used with ladders and the like and provides stops at various indexed locations using radially-moving indexing pins. The indexing structure is contained within the hinge body substantially without projecting elements other than one or more indexing rods used to actuate the internal indexing mechanism.
    Type: Application
    Filed: September 9, 2010
    Publication date: March 15, 2012
    Inventor: Ronald R. Grimes
  • Publication number: 20120037454
    Abstract: A base extending mechanism is provided for a ladder in the form of pivotable lower leg sections which can be independently rotated outwards to provide a wider ladder base. This extension of the ladder base is complementary to and supported by a compatible ladder levelling mechanism.
    Type: Application
    Filed: April 23, 2010
    Publication date: February 16, 2012
    Inventor: Michael Patrick Fitzgezald
  • Patent number: 8104576
    Abstract: The invention relates to scaffold steps, with two separate side pieces (11) and a plurality of separate step elements (13, 13?, 13?), which can be detachably coupled to each other and to the side pieces.
    Type: Grant
    Filed: May 22, 2006
    Date of Patent: January 31, 2012
    Assignee: Peri GmbH
    Inventor: Artur Schwoerer
  • Patent number: 8074767
    Abstract: An extensible, vehicle-mounted ladder with movable rungs is used to aid in raising and lowering in rescue operations. The ladder includes a rotatable base having storage space to hold extra rungs supporting the variable extended positions of the ladder. The ladder includes a plurality of ladder units or extensible booms. Each ladder unit includes four C-rails. A first ladder unit is attached to the rotatable base and the others extensible therefrom. The ladder includes rungs that slidably engage within two of the C-rails. A drive cable connects the rungs in a closed loop and is powered to enable rung rotation in a closed loop around the ladder units within the C-rails.
    Type: Grant
    Filed: August 8, 2010
    Date of Patent: December 13, 2011
    Inventor: Orville Douglas Denison
  • Publication number: 20110232999
    Abstract: Designs for adapting a ladder rail so that accessories to the ladder can be quickly and securely mounted and released without using tools. Aspects of the invention include: (1) configurations of holes in ladder rails for receiving accessories for toolless attachment and release; (2) catches affixed to the rail to secure the accessory; (3) attachment bases permanently mounted to the ladder rail with structures for toolless attachment and release of accessories to the base; (4) catches affixed to the base to secure the accessory; (5) attachment structures on the accessory for toolless attachment and release of the accessory to a base or a ladder rail; and (6) catches affixed to the accessory to secure the accessory to a base or rail.
    Type: Application
    Filed: July 30, 2009
    Publication date: September 29, 2011
    Inventor: Philip F. Lanzafame
  • Publication number: 20110209947
    Abstract: A dual-use ladder and bridge modular system preferably includes tubes, gussets, flanges, and/or joints. In a preferred embodiment, the tubes, gussets, flanges, and/or joints are made of carbon fiber. A method connects and disconnects modular carbon fiber ladder segments. Another method creates a lightweight carbon-fiber beam with exceptionally high stiffness and strength using a combination of carbon-fiber braid material, uni-directional cloth, and pultruded carbon-fiber strips. A carbon fiber ladder segment and tube connectors are also disclosed.
    Type: Application
    Filed: May 10, 2011
    Publication date: September 1, 2011
    Applicant: ALLRED & ASSOCIATES INC.
    Inventors: Jimmie B. Allred, III, Joseph Kummer, Michael D. Griswold, Michael J. Hall, Matthew A. Bush
  • Publication number: 20110186383
    Abstract: A ladder is designed for a tank having a vertically extending side wall and a top of a convex curved profile, with an access point near the top center of the convex curved top, the ladder having a pair of parallel side rails, each side rail having a straight section at one end and a curved section at the other end, the curved section extending over the top of the tank and toward the access point, with plurality of rungs extending between and secured to the side rails, with at least one rung positioned in the straight section of the side rails and at least one rung positioned in the curved section of the side rails.
    Type: Application
    Filed: February 3, 2010
    Publication date: August 4, 2011
    Inventor: Steven Richard Ambriz
  • Publication number: 20110147123
    Abstract: A top tread for aluminum ladder includes a splice aluminum member 1 assembled by two or more aluminum single elements and two side plastic members 3 and a metal tube assembly 2. The front and the rear end of the splice aluminum member 1 are equipped with side skirts 111, 131 which are set downwardly. The upper and the lower end of the side plastic members 3 are equipped with an upper and a lower covering edge 31, 32 by which the two side plastic member 3 can clamp the two sides of the splice aluminum member 1 or the two sides of an assembly unit formed by the metal tube 2 and the splice aluminum member 1, and the upper and the lower covering edges 31, 32 can clamp the two side interspaces between the front and the back side skirt 111, 131 at the same time.
    Type: Application
    Filed: September 2, 2009
    Publication date: June 23, 2011
    Inventor: Luhao Leng
  • Publication number: 20110114416
    Abstract: A portable modular ladder system which comprises a plurality of stiles. A plurality of steps are spaced apart which extend laterally from opposite sides of each stile in an alternating manner. A plurality of stabilizers are spaced apart which extend rearwardly from each stile. A mechanism is for interconnecting the plurality of stiles together end to end. .A mechanism is for retaining the plurality of stabilizers against a substantially vertical structure, wherein a person can climb up the plurality of steps on the plurality of stiles.
    Type: Application
    Filed: October 15, 2009
    Publication date: May 19, 2011
    Inventor: David Mayhew
  • Patent number: 7938229
    Abstract: An improved marine emergency rope ladder apparatus includes: (a) a continuous piece of rope knotted so as to form a safety ladder having a top and a bottom-free end, two side pieces that form a loop at the top of the ladder which is used to attach the top of the ladder to the surface to which it is to be affixed, and a plurality of rungs extending between these side pieces, (b) a pull rope whose top end is attached proximate the free end of the ladder and whose length is such that its bottom end is place proximate a water surface to which the ladder is to be extended, (c) a covering for the ladder in the form of a sleeve with a top flap and a means for releasably connecting the covering's bottom portion so that it can support the weight of the ladder fitted within the covering, and wherein this releasable means is configured so that a pull on the pull rope causes the releasable means to open the covering's bottom so as to allow the free end of the ladder to fall to the water below.
    Type: Grant
    Filed: September 7, 2007
    Date of Patent: May 10, 2011
    Inventor: Rebecca M. Davies
  • Publication number: 20110073729
    Abstract: A ladder storage device includes: a ladder end cradle, adapted to releasably, rotatably receive the top end of the ladder when the ladder is in an lowered orientation. When the ladder is received and rotated into a raised orientation, the ladder end cradle retains the top end of the ladder so that the legs of the ladder may be releasably held to the ceiling, thereby storing the ladder adjacent to the ceiling.
    Type: Application
    Filed: September 30, 2009
    Publication date: March 31, 2011
    Inventor: Bruce Lawrence DeSautel
  • Publication number: 20110011679
    Abstract: A ladder comprises two stiles and at least a step unit mounted between the two stiles. The step unit includes a hollow step, an inner sleeve and an outer sleeve. The inner sleeve is fit into the hollow step, at an end of which a position restriction portion is located to prevent the inner sleeve from moving out, and the outer sleeve is adapted to surround the end of the hollow step. Besides, a fastener is set, the fastening end of which is passed through the stile, the outer sleeve and fastened in the inner sleeve. The present technique solution has a high supporting strength and a high shear resistance.
    Type: Application
    Filed: December 29, 2008
    Publication date: January 20, 2011
    Inventor: Luhao Leng
  • Publication number: 20100219019
    Abstract: A portable boarding ladder is attached to a rubberized portion of an inflatable boat without the use of piercing fasteners and does not require a hard point mounting structure. A base ladder section and a climbing ladder section are pivotally coupled together and supported in an operative, stand-off boarding position along a curved hull surface of a pontoon boat by a pair of hook support brackets and a pair of latch retainer brackets. The support brackets are bonded to the pontoon by adhesive deposits. A lateral cross bar tubing segment of the base ladder section is supported by hanging engagement on the hook brackets. A pair of side rail tubing segments of the climbing ladder section are retained and secured against lateral shifting displacement and rotation relative to the pontoon by snap-fit engagement against resilient arm portions of the latch retainer brackets.
    Type: Application
    Filed: March 2, 2009
    Publication date: September 2, 2010
    Applicant: Vallery Industries. Inc.
    Inventor: RUSSELL L. SEDLACK, II
  • Publication number: 20100163340
    Abstract: A dual-use ladder and bridge modular system preferably includes tubes, gussets, flanges, and/or joints. In a preferred embodiment, the tubes, gussets, flanges, and/or joints are made of carbon fiber. A method connects and disconnects modular carbon fiber ladder segments. Another method creates a lightweight carbon-fiber beam with exceptionally high stiffness and strength using a combination of carbon-fiber braid material, uni-directional cloth, and pultruded carbon-fiber strips. A carbon fiber ladder segment and tube connectors are also disclosed.
    Type: Application
    Filed: December 23, 2009
    Publication date: July 1, 2010
    Applicant: ALLRED & ASSOCIATES INC.
    Inventors: Jimmie B. Allred, III, Joseph Kummer, Michael D. Griswold, Michael J. Hall, Matthew A. Bush
  • Publication number: 20100018801
    Abstract: An apparatus, system, and method are disclosed to prevent a user from using the top step of a ladder. The apparatus comprises a substantially solid front face on which a first side flap and second side flap are disposed. The first and second side flaps are disposed at an angle to the front face in order to create a spring force when inserted in a ā€œCā€ shaped cross section of a ladder. The apparatus is held to a ladder through the spring force and by securing the side flaps and front face to the ladder legs.
    Type: Application
    Filed: July 22, 2008
    Publication date: January 28, 2010
    Inventors: Larry D. Allred, Larry B. Allred
  • Publication number: 20090321564
    Abstract: A vertically movable passageway for a space in the ceiling region in an aircraft cabin. The passageway comprises a passageway floor and a displacement device, wherein the displacement device is designed to variably set the height (h1) of the passageway floor.
    Type: Application
    Filed: October 11, 2006
    Publication date: December 31, 2009
    Applicant: Airbus Deutschland GmbH
    Inventors: Michael Schuld, Harry Kwik
  • Publication number: 20090223164
    Abstract: A tower according to embodiments of the present invention includes a monopole shell having a vertical axis, the vertical axis substantially aligned with a gravitational force, wherein at least a portion of the monopole shell has an aerodynamic shape, wherein an outer perimeter of the aerodynamic shape comprises a leading edge and a trailing edge, wherein a chord between the leading edge and the trailing edge is shorter than a distance along the outer perimeter between the leading edge and the trailing edge, and wherein a maximum dimension of the outer perimeter measured orthogonally to the chord and the vertical axis is shorter than the chord; and a base, wherein the monopole shell rotates about the vertical axis with respect to the base.
    Type: Application
    Filed: March 9, 2009
    Publication date: September 10, 2009
    Applicant: STRUCTURAL COMPONENTS LLC
    Inventors: Bradley J. Cook, Dan J. Welch
  • Patent number: 7530429
    Abstract: A ladder including: first and second expandable members, each of the first and second expandable members including: a covering capable of expansion, the covering defining a cavity; and expansion means for expanding foam in the cavity in an expansion direction to expand the covering into a predetermined shape; each of the first and second expandable members having a plurality of holes; and a rung, having a first end disposed in each of the plurality of holes of the first expandable member and a second end disposed in a corresponding hole in the second expandable member.
    Type: Grant
    Filed: June 11, 2005
    Date of Patent: May 12, 2009
    Assignee: Omnitek Partners LLC
    Inventor: Thomas Spinelli