CA2080135A1 - Collapsible ladder - Google Patents

Collapsible ladder

Info

Publication number
CA2080135A1
CA2080135A1 CA2080135A CA2080135A CA2080135A1 CA 2080135 A1 CA2080135 A1 CA 2080135A1 CA 2080135 A CA2080135 A CA 2080135A CA 2080135 A CA2080135 A CA 2080135A CA 2080135 A1 CA2080135 A1 CA 2080135A1
Authority
CA
Canada
Prior art keywords
sections
rung
stiles
collapsible ladder
rungs
Prior art date
Legal status (The legal status 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 status listed.)
Granted
Application number
CA2080135A
Other languages
French (fr)
Other versions
CA2080135C (en
Inventor
James Thomas Weston
Richard Weston
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
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=27265039&utm_source=***_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=CA2080135(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Priority claimed from GB909008092A external-priority patent/GB9008092D0/en
Priority claimed from GB909026295A external-priority patent/GB9026295D0/en
Application filed by Individual filed Critical Individual
Publication of CA2080135A1 publication Critical patent/CA2080135A1/en
Application granted granted Critical
Publication of CA2080135C publication Critical patent/CA2080135C/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06C—LADDERS
    • E06C1/00—Ladders in general
    • E06C1/02—Ladders in general with rigid longitudinal member or members
    • E06C1/04—Ladders for resting against objects, e.g. walls poles, trees
    • E06C1/08—Ladders for resting against objects, e.g. walls poles, trees multi-part
    • E06C1/12—Ladders for resting against objects, e.g. walls poles, trees multi-part extensible, e.g. telescopic
    • E06C1/125—Ladders for resting against objects, e.g. walls poles, trees multi-part extensible, e.g. telescopic with tubular longitudinal members nested within each other

Landscapes

  • Ladders (AREA)
  • Lock And Its Accessories (AREA)
  • Steps, Ramps, And Handrails (AREA)

Abstract

A collapsible ladder comprises two stiles formed of telescopically collapsible sections (10), a plurality of rungs (11) each mounted between two sections of the respective stiles, and latch mechanisms located in the rungs for automatically locking the sections (10) of the stiles relative to one another when the sections are extended. The latch mechanisms in each rung are arranged to release the sections of the stiles connected to the next higher rung when the rung is collapsed against the next lower rung.
CA002080135A 1990-04-10 1991-04-10 Collapsible ladder Expired - Lifetime CA2080135C (en)

Applications Claiming Priority (7)

Application Number Priority Date Filing Date Title
GB909008092A GB9008092D0 (en) 1990-04-10 1990-04-10 Tubular telescopic ladder
GB9008092.0 1990-04-10
GB9010990.1 1990-05-16
GB9010990A GB2242925A (en) 1990-04-10 1990-05-16 Collapsible ladder
GB9026295.7 1990-12-04
GB909026295A GB9026295D0 (en) 1990-04-10 1990-12-04 Ladder
PCT/GB1991/000565 WO1991015651A1 (en) 1990-04-10 1991-04-10 Collapsible ladder

Publications (2)

Publication Number Publication Date
CA2080135A1 true CA2080135A1 (en) 1991-10-11
CA2080135C CA2080135C (en) 1999-10-19

Family

ID=27265039

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002080135A Expired - Lifetime CA2080135C (en) 1990-04-10 1991-04-10 Collapsible ladder

Country Status (11)

Country Link
EP (1) EP0527766B1 (en)
JP (1) JP3117993B2 (en)
AT (1) ATE139006T1 (en)
AU (1) AU643520B2 (en)
BR (1) BR9106325A (en)
CA (1) CA2080135C (en)
DE (1) DE69120065T2 (en)
DK (1) DK0527766T3 (en)
ES (1) ES2089208T3 (en)
GR (1) GR3020598T3 (en)
WO (1) WO1991015651A1 (en)

Families Citing this family (42)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2263932B (en) * 1992-02-01 1995-06-28 Telesteps Limited Loft ladder
US5738186A (en) * 1994-03-01 1998-04-14 Foxdale Developments Limited Extensible ladder
DE4424839C2 (en) * 1994-07-14 1996-11-21 Bolwin Sabine Collapsible ladder
DE19501689C2 (en) * 1995-01-20 1999-02-25 Johann Brenner Pull-out ladder
GB2305956B (en) * 1995-10-02 1999-10-06 Gary Kuo An extension ladder with telescopic legs
DE19653003C2 (en) * 1996-12-19 1999-05-27 Giesserei & Montage Gmbh Collapsible ladder
US6505707B1 (en) * 1998-09-03 2003-01-14 Hurrican Graphics, Inc. Combination tree stand, blind and equipment carrier
SE523253C2 (en) * 2001-06-13 2004-04-06 Telesteps Ab Foldable ladder
EP1447520B1 (en) * 2003-02-11 2008-07-16 James Thomas Weston Ladder Accessory
GB2413148A (en) * 2004-04-16 2005-10-19 Per-Olof Eriksson Loft ladder assembly
GB2418702A (en) * 2004-09-29 2006-04-05 James Thomas Weston Telescopic loft ladder
DE602005003932T2 (en) 2005-06-01 2008-12-18 Telesteps Ab Collapsible ladder with locking device
EP1788167A1 (en) * 2005-11-18 2007-05-23 Telesteps AB Collapsible platform
US8387753B2 (en) 2006-06-30 2013-03-05 Core Distribution, Inc. Ergonomic extendable/retractable ladder
EP1816313A1 (en) * 2006-02-07 2007-08-08 Telesteps AB Collapsible stepladder
DE102006015927B4 (en) * 2006-04-05 2008-04-24 Telemaster Montage & Aluguss Gmbh Collapsible ladder
ATE417990T1 (en) * 2006-04-06 2009-01-15 Telesteps Ab LADDER WITH A LOCKING DEVICE
US7967110B2 (en) * 2006-07-27 2011-06-28 Werner Co. Tubular access ladder and method
EP2998501B8 (en) 2007-11-02 2018-12-26 Lampe Holding B.V. A telescopic ladder assembly
CN201250602Y (en) 2008-08-14 2009-06-03 王万兴 Extension ladder
US8225906B2 (en) 2008-08-22 2012-07-24 Core Distribution, Inc. Extendable/retractable ladder
DK200900012U3 (en) 2008-11-28 2009-05-25 Nielsen Otto Martinus Collapsible ladder
DE202009007991U1 (en) 2009-06-05 2010-10-28 Ovibell Pflanzen, Deko Und Freizeit Gmbh & Co. Kg Telescopic ladder
WO2011043663A1 (en) * 2009-10-07 2011-04-14 Lampe Holding B.V. Portable ladder with a stand off device
WO2012004333A1 (en) * 2010-07-08 2012-01-12 Telesteps Ab An improved collapsible ladder
DE202011051394U1 (en) 2011-02-02 2011-10-13 Patentselskabet Af 10. December 2010 Aps Collapsible ladder
GB2497608B (en) * 2012-05-14 2016-09-21 Teletower Com Ltd Telescopic loft ladder
GB2506835A (en) * 2012-07-25 2014-04-16 Richard Weston Telescopically collapsible fire escape ladder
WO2014139940A1 (en) 2013-03-11 2014-09-18 Martinus Nielsen Aps Collapsible ladder
DE202014010305U1 (en) 2013-08-09 2015-03-11 Patentselskabet Af 10. December 2010 Aps Collapsible ladder
DE102014104039B4 (en) 2014-03-24 2019-03-28 Ergobionik Gmbh stepladder
EP3183410B1 (en) 2014-08-18 2019-07-24 Lampe Holding B.V. Telescopic ladder assembly
US10233692B2 (en) 2014-12-02 2019-03-19 Core Distribution, Inc. Foldable ladder
DK3374589T3 (en) 2015-11-28 2019-08-12 Otto Martinus Nielsen Foldable ladder
EP3211174B1 (en) 2016-02-29 2019-04-10 Core Distribution Inc. Telescoping ladder with a cascading collapse mechanism
GB2557286B (en) * 2016-12-05 2018-12-19 Vincent Cole Geoffrey A Collapsible Ladder Apparatus
CN106602442B (en) * 2016-12-22 2018-08-31 国网浙江省电力公司金华供电公司 A kind of GW7 types disconnecting switch inspection platform
JP6600887B2 (en) * 2017-08-19 2019-11-06 特殊梯子製作所有限会社 Extendable hanging ladder
CN111448360B (en) 2017-11-08 2021-08-10 科尔分配股份有限公司 Locking assembly for a telescopic ladder
US11795760B2 (en) 2019-10-24 2023-10-24 Core Distribution, Inc. Ladder tripod assembly and system
USD959024S1 (en) 2020-12-04 2022-07-26 Dorel Home Furnishings, Inc. Tray for telescoping ladder
SE2151545A1 (en) 2021-12-16 2023-04-18 Telesteps Ab Collapsible step ladder and a connection bracket therefor

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR381897A (en) * 1906-09-14 1908-01-23 Johann Josef Hersche Window sill convertible into a rescue ladder
US1712942A (en) * 1927-12-29 1929-05-14 Hiram K Smith Collapsible ladder
US2542398A (en) * 1945-07-28 1951-02-20 Mary Crumpton Murray Ladder
US2827216A (en) * 1955-05-25 1958-03-18 Leonard B Napolitano Telescopic step or rung ladders
US3653463A (en) * 1970-06-22 1972-04-04 E T Hannan & Associates Inc Collapsible ladder arrangement
GB2110286A (en) * 1981-05-08 1983-06-15 Bier And Son I Light and extensible ladder

Also Published As

Publication number Publication date
AU643520B2 (en) 1993-11-18
DE69120065D1 (en) 1996-07-11
DE69120065T2 (en) 1996-10-02
JPH05508456A (en) 1993-11-25
EP0527766A1 (en) 1993-02-24
JP3117993B2 (en) 2000-12-18
WO1991015651A1 (en) 1991-10-17
BR9106325A (en) 1993-04-20
GR3020598T3 (en) 1996-10-31
CA2080135C (en) 1999-10-19
AU7665291A (en) 1991-10-30
EP0527766B1 (en) 1996-06-05
ES2089208T3 (en) 1996-10-01
DK0527766T3 (en) 1996-06-24
ATE139006T1 (en) 1996-06-15

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Legal Events

Date Code Title Description
EEER Examination request
MKEX Expiry
MKLC Lapsed (correction)