MX346103B - Escaleras, componentes para escaleras y métodos relacionados. - Google Patents

Escaleras, componentes para escaleras y métodos relacionados.

Info

Publication number
MX346103B
MX346103B MX2013008454A MX2013008454A MX346103B MX 346103 B MX346103 B MX 346103B MX 2013008454 A MX2013008454 A MX 2013008454A MX 2013008454 A MX2013008454 A MX 2013008454A MX 346103 B MX346103 B MX 346103B
Authority
MX
Mexico
Prior art keywords
ladder
ladders
related methods
another embodiment
adjustable
Prior art date
Application number
MX2013008454A
Other languages
English (en)
Inventor
Ryan Moss N
Crawford Ryan
Emmel Keith
Original Assignee
Wing Entpr Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=41056680&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=MX346103(B) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Wing Entpr Inc filed Critical Wing Entpr Inc
Publication of MX346103B publication Critical patent/MX346103B/es

Links

Classifications

    • EFIXED CONSTRUCTIONS
    • E06DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06CLADDERS
    • E06C1/00Ladders in general
    • E06C1/02Ladders in general with rigid longitudinal member or members
    • E06C1/14Ladders capable of standing by themselves
    • E06C1/16Ladders capable of standing by themselves with hinged struts which rest on the ground
    • E06C1/18Ladders capable of standing by themselves with hinged struts which rest on the ground with supporting struts formed as ladders
    • EFIXED CONSTRUCTIONS
    • E06DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06CLADDERS
    • E06C1/00Ladders in general
    • E06C1/02Ladders in general with rigid longitudinal member or members
    • E06C1/14Ladders capable of standing by themselves
    • E06C1/16Ladders capable of standing by themselves with hinged struts which rest on the ground
    • E06C1/20Ladders capable of standing by themselves with hinged struts which rest on the ground with supporting struts formed as poles
    • E06C1/22Ladders capable of standing by themselves with hinged struts which rest on the ground with supporting struts formed as poles with extensible, e.g. telescopic, ladder parts or struts
    • EFIXED CONSTRUCTIONS
    • E06DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06CLADDERS
    • E06C1/00Ladders in general
    • E06C1/02Ladders in general with rigid longitudinal member or members
    • E06C1/14Ladders capable of standing by themselves
    • E06C1/24Non-hinged free-standing ladders
    • E06C1/28Non-hinged free-standing ladders multi-part
    • E06C1/30Non-hinged free-standing ladders multi-part extensible, e.g. telescopic
    • EFIXED CONSTRUCTIONS
    • E06DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06CLADDERS
    • E06C7/00Component parts, supporting parts, or accessories
    • E06C7/02Extending means
    • E06C7/04Hand-operated extending means carried by the ladder
    • EFIXED CONSTRUCTIONS
    • E06DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06CLADDERS
    • E06C7/00Component parts, supporting parts, or accessories
    • E06C7/06Securing devices or hooks for parts of extensible ladders
    • EFIXED CONSTRUCTIONS
    • E06DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06CLADDERS
    • E06C7/00Component parts, supporting parts, or accessories
    • E06C7/14Holders for pails or other equipment on or for ladders
    • EFIXED CONSTRUCTIONS
    • E06DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06CLADDERS
    • E06C7/00Component parts, supporting parts, or accessories
    • E06C7/16Platforms on, or for use on, ladders, e.g. liftable or lowerable platforms
    • EFIXED CONSTRUCTIONS
    • E06DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06CLADDERS
    • E06C7/00Component parts, supporting parts, or accessories
    • E06C7/50Joints or other connecting parts
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16BDEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B7/00Connections of rods or tubes, e.g. of non-circular section, mutually, including resilient connections
    • F16B7/10Telescoping systems
    • F16B7/105Telescoping systems locking in discrete positions, e.g. in extreme extended position
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00Metal working
    • Y10T29/49Method of mechanical manufacture
    • Y10T29/49826Assembling or joining

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Ladders (AREA)

Abstract

La presente invención se refiere a una escalera caracterizada porque comprende: un primer ensamble que tiene un par de barandas interiores y un par de barandas exteriores, el par de barandas interiores se acoplan con el par de barandas exteriores de manera deslizable; y por lo menos un mecanismo de bloqueo configurado para pivotear entre una primera posición y segunda posición, el mecanismo de bloqueo comprende: una abrazadera acoplada a una primera baranda exterior del par de barandas exteriores, una palanca pivotante acoplada a la abrazadera por medio de un pasador de pivote, la palanca siendo sesgada hacia la primera posición, la palanca incluye una primera porción que se extiende desde el pasador de pivote en una primera dirección, y la palanca incluye una segunda porción que se extiende desde el pasador de pivote en una segunda dirección opuesta a la primera dirección que se extiende lejos de la primera porción, un pasador de acoplamiento acoplado directamente de forma pivotante a la segunda porción de la palanca por medio de un pasador de acoplamiento, en donde el al menos un mecanismo de bloqueo está configurado de modo que la aplicación de una fuerza a la primera porción de la palanca en una dirección hacia dentro hacia la primera baranda exterior hace que la palanca gire alrededor del pasador de pivote desde la primera posición a la segunda posición provocando que el pasador de acoplamiento sea desplazado en una dirección hacia fuera lejos de la primera baranda exterior, la palanca está configurada para ser posicionada de forma selectiva entre la primera posición y la segunda posición, siendo la primera posición cuando el pasador de acoplamiento pasa a través de una abertura en una primera baranda interior del par de barandas interiores que impide el movimiento relativo entre los barandas interior y exterior, siendo la segunda posición cuando el pasador de acoplamiento está retraído desde la apertura de la primera baranda interior para permitir el movimiento relativo entre barandas interiores y exteriores, y un mecanismo de retención configurado para mantener la palanca en la segunda posición tanto como el pasador de acoplamiento está alineado con la abertura en la primera baranda interior, el mecanismo de retención se configura para liberar la palanca desde la segunda posición como un resultado directo de la aplicación de una fuerza predeterminada en la dirección hacia el interior hasta la segunda porción de la palanca.
MX2013008454A 2008-03-07 2009-03-06 Escaleras, componentes para escaleras y métodos relacionados. MX346103B (es)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US6865608P 2008-03-07 2008-03-07
PCT/US2009/036402 WO2009111746A2 (en) 2008-03-07 2009-03-06 Ladders, ladder components and related methods

Publications (1)

Publication Number Publication Date
MX346103B true MX346103B (es) 2017-03-07

Family

ID=41056680

Family Applications (2)

Application Number Title Priority Date Filing Date
MX2013008454A MX346103B (es) 2008-03-07 2009-03-06 Escaleras, componentes para escaleras y métodos relacionados.
MX2010009589A MX2010009589A (es) 2008-03-07 2009-03-06 Escaleras, componentes para escaleras y metodos relacionados.

Family Applications After (1)

Application Number Title Priority Date Filing Date
MX2010009589A MX2010009589A (es) 2008-03-07 2009-03-06 Escaleras, componentes para escaleras y metodos relacionados.

Country Status (9)

Country Link
US (7) US8186481B2 (es)
EP (2) EP2260170B1 (es)
CN (2) CN101960084B (es)
AU (1) AU2009221676B2 (es)
CA (5) CA3160141A1 (es)
DK (1) DK2260170T3 (es)
MX (2) MX346103B (es)
NZ (2) NZ604842A (es)
WO (1) WO2009111746A2 (es)

Families Citing this family (86)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8579083B2 (en) * 2007-09-26 2013-11-12 Werner Co. Method and stepladder with a tray
NZ604842A (en) 2008-03-07 2015-01-30 Wing Entpr Inc Ladders, ladder components and related methods
US8376341B2 (en) * 2008-05-01 2013-02-19 Wendell E. Kocher Support device
US20100116592A1 (en) * 2008-11-11 2010-05-13 Jeffrey David Clements Adjustable Stepladder
US8701831B2 (en) * 2009-03-03 2014-04-22 Wing Enterprises, Inc. Stepladders and related methods
US8365865B2 (en) 2009-03-03 2013-02-05 Wing Enterprises, Inc. Adjustable ladders and related methods
DE202009004879U1 (de) * 2009-06-03 2010-10-21 Krause-Werk Gmbh & Co. Kg Stehleiter
EP2591199A1 (en) * 2010-07-08 2013-05-15 Telesteps AB An improved collapsible ladder
US9309718B1 (en) * 2010-08-05 2016-04-12 Martin Sinclair Matthew Stable stepladder with utility tray
US8701828B1 (en) * 2010-08-05 2014-04-22 Martin S Matthew Stable stepladder with utility tray
CA2826167C (en) * 2011-02-22 2017-07-11 Wing Enterprises, Incorporated Ladders, ladder components and related methods
US8191685B1 (en) * 2011-05-16 2012-06-05 Geiselman Iii Grover J Folding ladder
US9534443B1 (en) * 2011-12-27 2017-01-03 Robert C. Bogart Ladder and related methods
US9663989B2 (en) 2012-01-23 2017-05-30 Wing Enterprises, Inc. Elevated working platform and related methods
MX368951B (es) 2013-01-24 2019-10-22 Wing Entpr Inc Escalera ajustable y componentes relacionados.
WO2014127009A1 (en) * 2013-02-13 2014-08-21 Wing Enterprises, Incorporated Ladders and related methods
US9435155B2 (en) * 2013-05-09 2016-09-06 Werner Co. Stepladder having a ladder top with conduit holder slot and method
CN103437698B (zh) * 2013-08-26 2016-12-28 国家电网公司 伸缩式高空检修绝缘梯
WO2015035211A2 (en) 2013-09-06 2015-03-12 Wing Enterprises, Incorporated Adjustable ladders, ladder components and related methods
WO2015048271A1 (en) 2013-09-27 2015-04-02 Wing Enterprises, Incorporated Step ladders, components for step ladders and related methods
WO2016008040A1 (en) 2014-07-14 2016-01-21 Otten & Otten Construction Limited Brace for step ladder
CN104196437A (zh) * 2014-08-21 2014-12-10 四川金锋建设有限公司 一种人字梯
EP3760827B1 (en) * 2014-09-12 2022-07-06 Little Giant Ladder Systems, LLC Ladder
US9068394B1 (en) 2014-10-10 2015-06-30 Grover J. Geiselman, III Space saving ladder
CN104727730A (zh) * 2015-01-22 2015-06-24 李海红 一种电缆维修梯
US10138680B2 (en) * 2015-05-26 2018-11-27 Tricam Industries, Inc. Hinged tray for ladder or step stool
US20170135469A1 (en) * 2015-10-08 2017-05-18 Trinity Capital Ventures, LLC Accesory stand
EP3904631B1 (en) 2016-02-05 2023-03-08 Little Giant Ladder Systems, LLC Elevated working platform
CA3016664A1 (en) * 2016-03-04 2017-09-08 Wing Enterprises, Incorporated Adjustment mechanisms, ladders incorporating same and related methods
US10801261B2 (en) * 2016-06-14 2020-10-13 Wing Enterprises, Incorporated Ladders, ladder hinges and related methods
US10066437B2 (en) * 2016-07-20 2018-09-04 The Boeing Company Staggered step trestle ladder
US10767417B2 (en) * 2016-07-25 2020-09-08 Enrique Andrade Accessory tray for attachment to a folding step ladder
SE1651198A1 (en) * 2016-09-07 2018-03-08 Vare Invent AB Platform ladder apparatus
CN206376733U (zh) * 2016-11-28 2017-08-04 厦门新技术集成有限公司 一种折叠式扶手梯子
US10590703B2 (en) * 2016-12-30 2020-03-17 Werner Co. Ladder, top and method
US10612305B2 (en) * 2016-12-30 2020-04-07 Werner Co. Ladder, Top and Method
USD855833S1 (en) 2017-01-04 2019-08-06 Tricam Industries, Inc. Ladder rail
USD860476S1 (en) 2017-01-04 2019-09-17 Tricam Industries, Inc. Hinge for a multi-position ladder
US10871031B1 (en) 2017-03-13 2020-12-22 Wing Enterprises, Incorporated Methods of fabricating composite articles and related articles and structures
US10876356B2 (en) * 2017-06-02 2020-12-29 Wing Enterprises, Incorporated Ladder hinge and ladders incorporating same
US11390609B2 (en) * 2017-06-30 2022-07-19 Beijing Tide Pharmaceutical Co., Ltd. Rho-associated protein kinase inhibitor, pharmaceutical composition comprising same, and preparation method and use thereof
WO2019055866A1 (en) 2017-09-14 2019-03-21 Wing Enterprises, Inc. ROULETTE ASSEMBLY AND APPARATUS INCLUDING THE SAME
WO2019094682A1 (en) 2017-11-10 2019-05-16 Wing Enterprises, Incorporated Walkthrough and standoff mechanisms for ladders, ladders incorporating same and related methods
US10036201B1 (en) * 2017-11-15 2018-07-31 Caterpillar Paving Products Inc. Access ladder assembly for a movable machine
US20190226217A1 (en) * 2018-01-24 2019-07-25 Tricam Industries, Inc. Work platform
US11280133B2 (en) * 2018-01-30 2022-03-22 Werner Co. 7000 series aluminum alloy ladder, multipurpose ladder and method
US11851949B2 (en) * 2018-01-30 2023-12-26 Werner Co. Multipurpose ladder and method
US10801263B2 (en) * 2018-02-23 2020-10-13 Werner Co. Ladder with top for holding an impact driver and method
US11129469B2 (en) * 2018-03-19 2021-09-28 Dongguan Shichang Metals Factory Ltd. Collapsible brace member for a furniture support structure
CN108528752B (zh) * 2018-06-04 2023-08-18 四川航泰航空装备有限公司 一种通用后舱工作梯
EP4239157A3 (en) 2018-06-08 2023-10-25 Little Giant Ladder Systems, LLC Combination ladders, ladder components and related methods
WO2020014044A1 (en) * 2018-07-09 2020-01-16 Wing Enterprises, Incorporated Ladders and ladder bracing
EP3830376B1 (en) 2018-07-27 2024-02-07 Little Giant Ladder Systems, LLC Last step indicator for ladders and ladders incorporating same
US10837229B2 (en) * 2018-08-21 2020-11-17 Hyundai Aluminum Vina Shareholding Company Ladder with a guardrail
US20200095828A1 (en) * 2018-09-26 2020-03-26 HD Assembly Inc. Low-Profile Fly Arm Step Ladder
USD943772S1 (en) 2018-10-19 2022-02-15 Little Giant Ladder Systems, Llc Flip-up ladder
USD912847S1 (en) 2018-10-19 2021-03-09 Little Giant Ladder Systems, Llc Top cap for ladder
USD885607S1 (en) 2018-10-19 2020-05-26 Wing Enterprises, Incorporated Accessory for ladder
USD935054S1 (en) 2018-10-19 2021-11-02 Little Giant Ladder Systems, Llc Ladder
US11299934B2 (en) 2018-11-28 2022-04-12 Dorel Home Furnishings, Inc. Expandable work tray for a step stool or ladder
US20210254406A1 (en) * 2018-11-28 2021-08-19 Dorel Home Furnishings, Inc. Expandable work tray for a step stool or ladder
US11655676B2 (en) * 2018-12-14 2023-05-23 Tricam Industries, Inc. Ladder tray locking mechanism
US11578533B2 (en) 2019-01-08 2023-02-14 Guy Fortier Step ladder device allowing the user to stand and work safely and comfortably on the upper steps of a step ladder
CA3127897A1 (en) 2019-01-25 2020-07-30 Little Giant Ladder Systems, Llc Foot for ladders, ladders incorporating same and related methods
USD911555S1 (en) 2019-02-08 2021-02-23 Little Giant Ladder Systems, Llc Top cap for a ladder
USD912848S1 (en) 2019-02-08 2021-03-09 Little Giant Ladder Systems, Llc Ladder accessory
US11225833B2 (en) * 2019-04-10 2022-01-18 Thomas Yoo Ladder with a guardrail
CA3088952C (en) * 2019-04-30 2022-05-24 Suzhou Zhongchuang Aluminium Products Co., Ltd. Ladder
CN114207243A (zh) * 2019-06-04 2022-03-18 小巨人梯具系统有限公司 具有可调节托盘的活梯
US20210062579A1 (en) * 2019-09-03 2021-03-04 Milwaukee Electric Tool Corporation Increased and Improved Functionality for a Ladder
CN211819206U (zh) * 2019-12-05 2020-10-30 江苏宙际杰智能科技股份有限公司 用于折叠梯的转动控制机构及折叠梯
USD966556S1 (en) 2019-12-13 2022-10-11 Murphy Ladder Llc Ladder
US11560755B1 (en) 2020-01-15 2023-01-24 Yakov I. Kuzmin Ladder moving mechanism
US20210222492A1 (en) * 2020-01-20 2021-07-22 Little Giant Ladder Systems, Llc Ladders and ladder rungs
US10822876B1 (en) 2020-02-09 2020-11-03 Chad Alan Parks Systems and methods of use of hanger assemblies for a ladder
US12084917B2 (en) * 2020-02-12 2024-09-10 Tricam Industries, Inc. Stepladder tray
AU2022213427A1 (en) * 2021-02-01 2023-08-24 Little Giant Ladder Systems, Llc Top cap for articulating ladder
US20220298862A1 (en) * 2021-03-18 2022-09-22 II Ernest Joseph Rovella Step Ladder Folding Assist
USD989985S1 (en) * 2021-06-10 2023-06-20 Joseph Nielo Ladder mount tool holder
CN113682332B (zh) * 2021-09-18 2023-07-14 中车大连机车车辆有限公司 一种用于疏散梯的覆盖罩
USD1009304S1 (en) 2022-02-07 2023-12-26 Tricam Industries, Inc. Three-step heavy-duty stepladder
USD1009303S1 (en) 2022-02-07 2023-12-26 Tricam Industries, Inc. Two-step heavy-duty stepladder
US20230313612A1 (en) 2022-03-31 2023-10-05 Little Giant Ladder Systems, Llc Wheeled platform system
US20230383601A1 (en) * 2022-05-27 2023-11-30 Little Giant Ladder Systems, Llc Multifunction button for ladder adjustment
USD1041033S1 (en) * 2023-09-26 2024-09-03 Zhejiang Kangqian Industry & Trade Co., Ltd. Sitting board for ladder
USD1041686S1 (en) * 2023-09-26 2024-09-10 Zhejiang Kangqian Industry & Trade Co., Ltd. Locking device for a ladder

Family Cites Families (173)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1303416A (en) * 1919-05-13 Trestle
US600196A (en) * 1898-03-08 Extensible step-ladder
US607808A (en) * 1898-07-19 tiefel
US622831A (en) * 1899-04-11 Combined step-ladder and jack
US656946A (en) * 1900-01-11 1900-08-28 Hubert A Banning Step-ladder.
US933816A (en) * 1908-08-28 1909-09-14 Moris Bartos Ladder.
US988816A (en) 1909-07-16 1911-04-04 George Alfred Reynolds Penman's guide.
US992915A (en) * 1909-12-15 1911-05-23 Ryland B Shaw Extension-ladder.
US979821A (en) * 1910-01-04 1910-12-27 Ross Mandaville Brasington Ladder extension.
US1068805A (en) * 1912-06-29 1913-07-29 John Mosiman Extension-step-ladder attachment.
US1102428A (en) * 1913-04-14 1914-07-07 William P Newman Step-ladder.
US1179391A (en) * 1915-11-09 1916-04-18 Albert W Bachman Ladder-foot.
US1335182A (en) * 1916-03-30 1920-03-30 John F Parkinson Wheeled ladder
US1379419A (en) * 1920-06-16 1921-05-24 Madison W Reeves Stepladder
US1397280A (en) * 1920-09-10 1921-11-15 Hubert M Graf Stepladder
US1419748A (en) * 1921-03-26 1922-06-13 Ludvic M Miller Extension foot for ladders
US1610596A (en) * 1925-04-28 1926-12-14 Fred J Bird Extensible side brace for stepladders
US1589526A (en) * 1925-10-12 1926-06-22 Fournier As Stepladder
US1626866A (en) * 1926-10-30 1927-05-03 Robert E Neilson Safety hook
US1944099A (en) * 1933-04-12 1934-01-16 Philadelphia Screen Mfg Compan Stepladder
US2167157A (en) * 1937-07-02 1939-07-25 Karl O Muehlberg Folding stepladder
US2320144A (en) * 1942-10-06 1943-05-25 Johnson Eric Auxiliary ladder leg
US2364048A (en) * 1943-05-21 1944-12-05 Isaac S Barkey Stepladder
US2409266A (en) * 1945-01-09 1946-10-15 Victor M Fowler Ladder
US2650014A (en) * 1951-01-05 1953-08-25 Harrison Henry Stepladder
US2827216A (en) * 1955-05-25 1958-03-18 Leonard B Napolitano Telescopic step or rung ladders
US2975857A (en) * 1955-11-17 1961-03-21 Suroff Hyman Extensible ladder constructions
US2937842A (en) * 1956-04-25 1960-05-24 Kenneth N Meek Spring loaded ceiling support
US2978267A (en) * 1958-06-18 1961-04-04 Nat Lock Co Latch construction
US2997323A (en) * 1959-12-08 1961-08-22 Lawrence Brothers Sash fastener
US3057431A (en) * 1961-05-10 1962-10-09 Grady F Quimby Portable sportsman's seat
US3443784A (en) * 1967-04-05 1969-05-13 Cramer Ind Inc Locking mechanism for chair pedestals
US3508628A (en) * 1968-10-17 1970-04-28 Charles J Conrad Ladder with stabilizer means
US3704850A (en) * 1971-01-04 1972-12-05 Krueger Metal Products Telescopically collapsible table leg
US3669218A (en) * 1971-05-19 1972-06-13 Joshua D Hall Portable steps for a vehicle or the like
US3770236A (en) * 1971-09-27 1973-11-06 H & M Enterprises Vertically adjustable support
US3786900A (en) * 1972-02-25 1974-01-22 P Olsen Laterally stabilized stepladder
CH551560A (de) * 1972-04-11 1974-07-15 Kuemmerlin Walter Gelenkbeschlag fuer klappbare leitern.
US3858684A (en) * 1973-06-27 1975-01-07 Harford E Goings Telescoping ladder
US3933222A (en) * 1974-09-25 1976-01-20 James E. Jenkins Ladder leveler
US3948352A (en) 1975-07-15 1976-04-06 White Metal Rolling & Stamping Corporation Extension ladder with ladder leveler means
DE7540295U (de) * 1975-12-18 1976-04-29 7151 Burgstetten Mehrzweckleiter
CA1064872A (en) * 1976-09-27 1979-10-23 Douglas A. Chantler Ladder stabilizing device
US4113221A (en) 1977-05-27 1978-09-12 Cramer Industries, Inc. Locking device
US4182431A (en) * 1978-03-13 1980-01-08 Little Giant Industries Inc. Combination extension and step ladder rungs therefor
US4226302A (en) * 1978-11-30 1980-10-07 R. D. Werner Co., Inc. Sectional ladder lock
US4210224A (en) 1979-01-05 1980-07-01 Kummerlin Nikolaus A Longitudinally variable ladder
US4371055A (en) * 1980-11-07 1983-02-01 Little Giant Industries, Inc. Method of manufacturing a fiberglass ladder
US4407045A (en) * 1981-12-21 1983-10-04 Boothe Leland H Ladder hinge and multi-position locking mechanism therefor
US4566150A (en) * 1981-12-21 1986-01-28 Little Giant Industries, Inc. Ladder hinge and multi-position locking mechanism therefor
US4574918A (en) * 1982-01-21 1986-03-11 Andral Corporation Ladder locking mechanism
US4492170A (en) * 1982-07-20 1985-01-08 Am Fab, Inc. Locking mechanism for vertically adjustable table
JPS6078667U (ja) * 1983-11-04 1985-06-01 アップリカ葛西株式会社 手押車のハンドル高さ調整機構
EP0195003A1 (en) * 1983-11-22 1986-09-24 MURRELL, John Edgar Safety ladder
US4614452A (en) * 1984-02-28 1986-09-30 Wang Cheng H Angle adjusting device
US4635902A (en) * 1985-05-13 1987-01-13 Peter Chou Jack safety device
GB8627245D0 (en) * 1986-11-14 1986-12-17 Ford Motor Co Door handle unit
US4754845A (en) * 1987-02-06 1988-07-05 Baker William H Step ladder
US4723629A (en) * 1987-02-13 1988-02-09 Vernon M. Vanden Hoek Extension ladder with auxiliary extension leg and supporting legs
US4826059A (en) * 1987-07-22 1989-05-02 Bosch A Allen Magnetic tool holder
US4951780A (en) * 1988-08-08 1990-08-28 Kim Myung H Combination ladder and height adjustable scaffold
DE8814195U1 (de) * 1988-11-12 1989-01-26 Krause-Werk Gmbh & Co Kg, 6320 Alsfeld Gelenkleiter
US4854420A (en) * 1988-11-15 1989-08-08 Juang Yuan C Securing means for a double step ladder
US4968072A (en) * 1989-08-14 1990-11-06 Taylor Harry L Bolt lock
US5495915A (en) * 1990-04-10 1996-03-05 Charles A. McDonnell Collapsible ladder
US5067589A (en) 1990-07-31 1991-11-26 R. D. Werner Co., Inc. Extendable support
CN2081878U (zh) * 1991-01-07 1991-07-31 叶治雄 多功能工作梯
US5120013A (en) * 1991-01-28 1992-06-09 Sweeney Larry L Ladder shelf
US5098052A (en) * 1991-06-06 1992-03-24 Beck Daniel L magnetic support tray for ladder shelf
USD341895S (en) 1991-08-14 1993-11-30 Leif & Gittan AB Stepladder
US5232796A (en) * 1991-09-19 1993-08-03 Gnb Incorporated Battery with multiple position handle
US5203596A (en) * 1992-10-01 1993-04-20 Larry Stevens Lock assembly for a sliding window, or the like
KR940020881U (ko) * 1993-02-01 1994-09-17 유회관 사다리의 높낮이 조절장치
US5353892A (en) * 1993-10-14 1994-10-11 Lu Feng Hui Ladder joint for a folding collapsible ladder
US5526898A (en) * 1994-07-06 1996-06-18 Clark; Allen Leg extension assembly
US5577574A (en) * 1994-11-15 1996-11-26 Joseph; Michael E. Adjustable stepladder
US5913380A (en) * 1995-03-30 1999-06-22 C-6 Corporation Ladder accessory
US5620272A (en) * 1995-05-10 1997-04-15 Sheng; Chim-Yuem Adjustable joint assembly for ladder sections
GB2305955B (en) * 1995-10-02 1999-12-01 Gary Kuo An extension ladder with telescopic legs
US5718306A (en) * 1995-12-29 1998-02-17 Baker; Gerald Ladder leveling device
US5722507A (en) * 1996-01-11 1998-03-03 Cosco, Inc. Step stool assembly
USD388882S (en) * 1996-01-11 1998-01-06 Cosco, Inc. Combined work ladder and platform
JPH1088949A (ja) 1996-09-12 1998-04-07 Kazuo Yasunaga 伸縮式脚立
KR200146389Y1 (ko) 1996-10-26 1999-06-15 황성규 절첩식 사다리용 고정버튼
US5740883A (en) * 1997-02-03 1998-04-21 Trank; Robert D. Tool accessory for ladder
DE29703876U1 (de) * 1997-03-04 1998-07-02 Krause-Werk GmbH & Co KG, 36304 Alsfeld Auszugsleiter
US6032914A (en) * 1997-07-11 2000-03-07 Southland Supply Company, Inc. Adjustable leg
US5967260A (en) 1997-07-28 1999-10-19 Spak; George E. Full-length step ladder with large, fold-away steps
US6116379A (en) * 1997-11-12 2000-09-12 Michael A. Huss Ladder stabilizing cross brace
US5845744A (en) * 1997-11-19 1998-12-08 Harold Anthony Ernest Beck Ladder levelling device
JP3172713B2 (ja) * 1998-08-10 2001-06-04 勝 森野 伸縮体
US6073726A (en) * 1998-11-16 2000-06-13 Mccrystal; James D. Adjustable step ladder
US6614337B1 (en) * 1999-06-29 2003-09-02 Stanley D. Winnard Magnetic holding device
US6347777B1 (en) * 2000-02-01 2002-02-19 Hoist Fitness Systems Seat adjustment apparatus
US6637548B2 (en) 2000-05-16 2003-10-28 Edward L. Pass Personal stand and method of using a personal stand
US6454050B2 (en) * 2000-08-11 2002-09-24 Cosco Management, Inc. Foldable step stool with leg lock and handle
EP1182322B1 (en) * 2000-08-14 2006-11-15 Tom Yeh Hinge on ladder
US6607053B1 (en) * 2000-09-26 2003-08-19 William Paul Warren Retractable safety cage
US6551226B1 (en) * 2000-09-28 2003-04-22 Hoist Fitness Systems Adjustment apparatus for exercise machine
US6401866B1 (en) * 2000-12-29 2002-06-11 Daniel J. Roy Machine for leveling a ladder on an uneven surface
US20040200669A1 (en) 2001-06-25 2004-10-14 Saccente David C. Retractable ladder
US6698699B1 (en) * 2001-09-13 2004-03-02 Raymond B. Bailey Working material retaining accessory
US6857503B2 (en) * 2002-02-07 2005-02-22 Tricam Industries, Inc. Convertible ladder
US20030146047A1 (en) * 2002-02-07 2003-08-07 Dennis Simpson Convertible ladder
US7128187B2 (en) * 2002-03-15 2006-10-31 Tricam Industries, Inc. Stepladder with pivoting utility tray
US6587022B1 (en) * 2002-03-19 2003-07-01 Rita M. Devine Foldable portable magnetic tool mat
US6698550B2 (en) * 2002-04-04 2004-03-02 Vernon Crain Adjustable step ladder
US6866117B2 (en) * 2002-04-05 2005-03-15 Wing Enterprises, Inc. Light weight ladder systems and methods
US7424933B2 (en) * 2002-05-28 2008-09-16 Norman Miller Ladder assemblies
US7383920B2 (en) 2002-06-27 2008-06-10 Cosco Management, Inc. Step stool with movable handrail
US20040000794A1 (en) * 2002-06-28 2004-01-01 Feng-Heh Wang Laborsaving latch
GB0216354D0 (en) * 2002-07-12 2002-08-21 Heeley Peter Door locking mechanism
KR20040012244A (ko) 2002-08-01 2004-02-11 주식회사 오토링크시스템 포괄적 위치측정 시스템을 이용한 등부표의 동기점멸제어장치
US6874598B1 (en) * 2002-10-15 2005-04-05 William H. Baker Ergonomically improved tripod stepladder
NZ540647A (en) 2002-11-11 2008-10-31 Wing Entpr Combination ladders, ladder components and methods of manufacturing same
US6902036B1 (en) * 2003-02-07 2005-06-07 Jack W. Holley Stabilizer for folding step ladders
US7293807B2 (en) * 2003-02-28 2007-11-13 Emco Enterprises, Inc. Door handle assembly
US6902034B2 (en) * 2003-05-28 2005-06-07 Cosco Management, Inc. Apparatus with utility tray mounted to scaffold
US6986405B2 (en) * 2003-07-21 2006-01-17 Cosco Management, Inc. Ladder with leg brace
DE10338621B4 (de) 2003-08-22 2009-02-26 Otto Ganter Gmbh & Co. Kg Normteilefabrik Federbelasteter Rastbolzen
US7104362B2 (en) * 2003-08-27 2006-09-12 Cosco Management, Inc. Foldable step ladder with leg aligner and handle
US7032711B1 (en) * 2003-10-28 2006-04-25 Ladder Mate Corporation Accessory tray for stepladders
EP1694938A1 (en) * 2003-10-31 2006-08-30 Wing Enterprises Adjustable stepladders and related methods
US7140072B2 (en) * 2003-11-11 2006-11-28 Cosco Management, Inc. Lockable ladder hinge
CN2674056Y (zh) * 2003-12-03 2005-01-26 郭晶耀 伸缩梯结构
US6886285B1 (en) * 2004-02-04 2005-05-03 Kimber Ip, Llc Three-position safety for a bolt-action rifle
US7097380B2 (en) * 2004-02-19 2006-08-29 Youth Lee Positioning structure of a beach umbrella
US7000732B1 (en) * 2004-03-02 2006-02-21 Briggs Jr Donald J Magnetic top for ladders and method of construction thereof
US6997282B1 (en) * 2004-03-02 2006-02-14 Sharp Robert L Adjustable ladder
US20050274571A1 (en) * 2004-06-11 2005-12-15 Dennis Simpson Convertible fiberglass ladder
US7114592B1 (en) * 2004-06-22 2006-10-03 Joseph Gibson Ladder with magnetic tool holder plate
US20060006024A1 (en) * 2004-07-08 2006-01-12 Matthew Till Step ladder having a top step with magnetic properties
US7310035B2 (en) * 2004-08-17 2007-12-18 Bret Wooten Magnetic metal accessory holder
US20060062632A1 (en) * 2004-09-17 2006-03-23 Norstar Trade, Inc. Release pin assembly for tents and canopies
US7222696B2 (en) 2004-10-07 2007-05-29 Elizabeth Jackson Independently adjustable extensions for leveling a ladder
US7931123B2 (en) * 2004-11-17 2011-04-26 Werner Co. Stepladder folding twin-step
US20060124397A1 (en) * 2004-12-10 2006-06-15 Finn Vosbein-Jensen Stepladder leg latches
US8042653B2 (en) * 2005-02-02 2011-10-25 Werner Co. Adjustable work platform
US7293934B1 (en) * 2005-03-15 2007-11-13 Ho Cheng Garden Tools Co., Ltd. Telescopically adjustable pipe
US20070003361A1 (en) * 2005-07-01 2007-01-04 Shu-Mei Wang Locking device for a telescopic tube
US7412753B2 (en) 2005-09-16 2008-08-19 Honda Motor Co., Ltd. Pin apparatuses and methods
US20070120028A1 (en) * 2005-11-30 2007-05-31 Kane William T Article holder for a ladder
KR200412244Y1 (ko) * 2005-12-30 2006-03-23 김만섭 사다리
CN2875721Y (zh) 2006-01-26 2007-03-07 苏州飞华铝制工业有限公司 弹性销定位式伸缩台面
EP1816313A1 (en) * 2006-02-07 2007-08-08 Telesteps AB Collapsible stepladder
US7849967B2 (en) * 2006-02-07 2010-12-14 Cosco Management, Inc. Foldable stepladder with step lock
WO2007134040A1 (en) * 2006-05-08 2007-11-22 Resource Management International, Llc Personal breathalyzer having digital circuitry
USD576290S1 (en) 2006-05-09 2008-09-02 Cosco Management, Inc. Step ladder
TWM314804U (en) * 2006-12-29 2007-07-01 Tay Huah Furniture Corp Telescopic adjustment and positioning device
CN101050687B (zh) * 2007-05-22 2011-02-23 王克诚 可伸缩梯子及其直立组合式梯子、平台高凳和人字梯
US7774901B1 (en) * 2007-12-05 2010-08-17 Ho Cheng Garden Tools Co., Ltd. Retractable handle assembly for tool
NZ604842A (en) 2008-03-07 2015-01-30 Wing Entpr Inc Ladders, ladder components and related methods
GB0805568D0 (en) * 2008-03-27 2008-04-30 Sandpiper Construction Ltd Improved ladder stabalisation and safety system
US7874303B2 (en) * 2008-04-14 2011-01-25 Wencang XIE Sliding device used on the supporting shaft
US20090283361A1 (en) * 2008-05-19 2009-11-19 Louisville Ladder Inc. Multi-tool ladder top
WO2010129703A2 (en) 2009-05-05 2010-11-11 Wing Enterprises, Incorporated Ladders, ladder components, ladder accessories, ladder systems and related methods
US9010491B2 (en) * 2009-11-27 2015-04-21 Brian T. Trang Ladder safety accessory kit
CN102906478A (zh) * 2010-04-08 2013-01-30 阿尔特拉弗洛股份有限公司 具有提高强度的凹槽板的阀
CA2826167C (en) * 2011-02-22 2017-07-11 Wing Enterprises, Incorporated Ladders, ladder components and related methods
US8806720B2 (en) * 2012-01-24 2014-08-19 Green Guard Industry Ltd. Rack type telescopic handle of horticultural shears
US9010010B2 (en) * 2012-05-21 2015-04-21 Daniel Isaac DREIBAND Firearm magazine catch apparatus
TWM470051U (zh) * 2013-09-27 2014-01-11 Jin-Cang Wu 用於調整伸縮車架之固定裝置
CN104564939B (zh) * 2013-10-23 2017-02-22 南京德朔实业有限公司 锁紧装置、应用该锁紧装置的伸缩杆及割草机
US10584532B2 (en) * 2014-03-18 2020-03-10 Wing Enterprises, Incorporated Ladders with integrated support, ladder components and related methods
US20150300398A1 (en) 2014-04-18 2015-10-22 Hanwit Precision Industries Ltd. Rotary fastener
TWM489471U (en) * 2014-07-22 2014-11-11 K&W Tools Co Ltd Telescopic tube structure for high branch cutter
EP3344211A4 (en) * 2015-09-02 2019-04-03 Evolution Technologies Inc. QUICK COUPLING ASSEMBLY FOR VERTICAL ELEMENTS OF A TRAILER
CA3016664A1 (en) * 2016-03-04 2017-09-08 Wing Enterprises, Incorporated Adjustment mechanisms, ladders incorporating same and related methods
CN205591813U (zh) * 2016-03-14 2016-09-21 厦门新技术集成有限公司 一种可伸缩的梯子
US10801261B2 (en) * 2016-06-14 2020-10-13 Wing Enterprises, Incorporated Ladders, ladder hinges and related methods
US10590702B2 (en) * 2016-10-05 2020-03-17 Wing Enterprises, Inc. Ladders, mechanisms and components for ladders, and related methods
CN206376733U (zh) * 2016-11-28 2017-08-04 厦门新技术集成有限公司 一种折叠式扶手梯子
US11261628B2 (en) * 2017-02-08 2022-03-01 Kason Industries, Inc. Cold room latch

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CN101960084B (zh) 2013-11-20
CA3081296A1 (en) 2009-09-11
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