[go: up one dir, main page]
More Web Proxy on the site http://driver.im/

EP0005690A3 - Double extension ladder or stepladder - Google Patents

Double extension ladder or stepladder Download PDF

Info

Publication number
EP0005690A3
EP0005690A3 EP79870013A EP79870013A EP0005690A3 EP 0005690 A3 EP0005690 A3 EP 0005690A3 EP 79870013 A EP79870013 A EP 79870013A EP 79870013 A EP79870013 A EP 79870013A EP 0005690 A3 EP0005690 A3 EP 0005690A3
Authority
EP
European Patent Office
Prior art keywords
stepladder
extension ladder
double extension
ladder
double
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
EP79870013A
Other versions
EP0005690B1 (en
EP0005690A2 (en
Inventor
Gilbert Loix
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
Application filed by Individual filed Critical Individual
Priority to AT79870013T priority Critical patent/ATE88T1/en
Publication of EP0005690A2 publication Critical patent/EP0005690A2/en
Publication of EP0005690A3 publication Critical patent/EP0005690A3/en
Application granted granted Critical
Publication of EP0005690B1 publication Critical patent/EP0005690B1/en
Expired 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
    • E06C1/38—Special constructions of ladders, e.g. ladders with more or less than two longitudinal members, ladders with movable rungs or other treads, longitudinally-foldable ladders
    • E06C1/383—Foldable ladders in which the longitudinal members are brought together on folding
    • 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
    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06C—LADDERS
    • E06C5/00—Ladders characterised by being mounted on undercarriages or vehicles Securing ladders on vehicles
    • E06C5/02—Ladders characterised by being mounted on undercarriages or vehicles Securing ladders on vehicles with rigid longitudinal members
    • E06C5/04—Ladders characterised by being mounted on undercarriages or vehicles Securing ladders on vehicles with rigid longitudinal members capable of being elevated or extended ; Fastening means during transport, e.g. mechanical, hydraulic
    • E06C5/16—Ladders characterised by being mounted on undercarriages or vehicles Securing ladders on vehicles with rigid longitudinal members capable of being elevated or extended ; Fastening means during transport, e.g. mechanical, hydraulic using mechanical transmission only, with or without fluid or other non-mechanical couplings or clutches
    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06C—LADDERS
    • E06C7/00—Component parts, supporting parts, or accessories
    • E06C7/42—Ladder feet; Supports therefor
    • E06C7/46—Non-skid equipment

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Ladders (AREA)
  • Electroluminescent Light Sources (AREA)

Abstract

A step ladder with rungs which can be retracted and transformed, without dismantling, into a folded ladder and an extension ladder.
EP79870013A 1978-05-23 1979-05-07 Double extension ladder or stepladder Expired EP0005690B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT79870013T ATE88T1 (en) 1978-05-23 1979-05-07 DOUBLE EXTENSION LADDER OR STEPLADDER.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
BE187943A BE867361A (en) 1978-05-23 1978-05-23 DOUBLE EXTENSIBLE OR SUPPORTED LADDER
BE187943 1978-05-23

Publications (3)

Publication Number Publication Date
EP0005690A2 EP0005690A2 (en) 1979-11-28
EP0005690A3 true EP0005690A3 (en) 1979-12-12
EP0005690B1 EP0005690B1 (en) 1981-06-17

Family

ID=3843118

Family Applications (1)

Application Number Title Priority Date Filing Date
EP79870013A Expired EP0005690B1 (en) 1978-05-23 1979-05-07 Double extension ladder or stepladder

Country Status (7)

Country Link
US (1) US4256200A (en)
EP (1) EP0005690B1 (en)
JP (1) JPS54154671A (en)
AT (1) ATE88T1 (en)
BE (1) BE867361A (en)
CA (1) CA1103629A (en)
DE (1) DE2960416D1 (en)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS593999U (en) * 1982-06-30 1984-01-11 井上鉄工株式会社 Stepladder/ladder
GB2152125B (en) * 1983-12-23 1987-07-29 Alinco Inc Foldable ladder
DE3631673A1 (en) * 1986-09-18 1988-04-07 Loh Kg Hailo Werk DOUBLE RUNG LADDER
DE3825299A1 (en) * 1988-07-26 1990-02-01 Loh Kg Hailo Werk DOUBLE RUNG LADDER
US5638918A (en) * 1995-07-18 1997-06-17 Hebda; Dorothy E. Ladder conversion kit
WO2003089750A1 (en) * 2002-04-19 2003-10-30 Laddaloc Pty Ltd Collapsible ladder
US7424933B2 (en) * 2002-05-28 2008-09-16 Norman Miller Ladder assemblies
US6991063B2 (en) * 2003-08-07 2006-01-31 Werner Co. Stowable ladder configured for installation in an opening
AU2005203398A1 (en) * 2005-08-02 2007-02-22 Laddaloc Pty Ltd Collapsible ladder
US9879481B2 (en) * 2009-04-24 2018-01-30 Michael Patrick Fitzgerald Adjustable base extender for a ladder
US20140262621A1 (en) * 2013-03-15 2014-09-18 Hailo-Werk Rudolf Loh Gmbh & Co. Kg Step Ladder
US10151144B2 (en) 2016-12-14 2018-12-11 Werner Co. Ladder, wide rung and method
US10538966B2 (en) * 2017-05-10 2020-01-21 Werner Co. Ceiling ladder, deep step and method
CN109209216B (en) * 2018-07-22 2020-05-19 广东博智林机器人有限公司 Foldable intelligent cat ladder for maintenance
US11834908B2 (en) * 2019-09-12 2023-12-05 Werner Co. Interlocking ladders and components thereof
CN112145065A (en) * 2020-08-14 2020-12-29 河北省金具电力有限公司 Folding insulating ladder and processing technology and using method thereof
CN113090072B (en) * 2021-04-10 2022-05-20 新力建设集团有限公司 Safety ladder way suitable for deep foundation pit slope-making type excavation construction and assembling method

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1051152A (en) *
US3100552A (en) * 1961-02-21 1963-08-13 Hopfeld Henry Convertible ladder
FR1593286A (en) * 1968-11-20 1970-05-25
FR2264170A1 (en) * 1974-03-14 1975-10-10 Hickman Designs Ltd
BE840773R (en) * 1975-05-26 1976-08-02 FOLDING METAL LADDER FORMING TRAY
GB1497253A (en) * 1974-12-18 1978-01-05 Abru Aluminium Ltd Step ladders
DE2657985A1 (en) * 1976-12-21 1978-06-29 Wolfgang Tellenbach Universal ladder with hinged rungs - has stringer tops hinged to similar unit for step ladder formation

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US193081A (en) * 1877-07-17 Improvement in step-ladders
US798388A (en) * 1905-03-06 1905-08-29 John H W Bodendieck Ladder.
US860065A (en) * 1906-06-16 1907-07-16 Francis E Scott Store-service extension-ladder.
US958732A (en) * 1908-03-06 1910-05-24 Dennis Novelty Ladder Company Ladder.
US4027741A (en) * 1976-07-15 1977-06-07 Shakespeare Company Locking hinge mechanism for a stepladder

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1051152A (en) *
US3100552A (en) * 1961-02-21 1963-08-13 Hopfeld Henry Convertible ladder
FR1593286A (en) * 1968-11-20 1970-05-25
FR2264170A1 (en) * 1974-03-14 1975-10-10 Hickman Designs Ltd
GB1497253A (en) * 1974-12-18 1978-01-05 Abru Aluminium Ltd Step ladders
BE840773R (en) * 1975-05-26 1976-08-02 FOLDING METAL LADDER FORMING TRAY
DE2657985A1 (en) * 1976-12-21 1978-06-29 Wolfgang Tellenbach Universal ladder with hinged rungs - has stringer tops hinged to similar unit for step ladder formation

Also Published As

Publication number Publication date
BE867361A (en) 1978-09-18
DE2960416D1 (en) 1981-09-24
US4256200A (en) 1981-03-17
CA1103629A (en) 1981-06-23
EP0005690B1 (en) 1981-06-17
ATE88T1 (en) 1981-07-15
EP0005690A2 (en) 1979-11-28
JPS54154671A (en) 1979-12-05

Similar Documents

Publication Publication Date Title
DE2960416D1 (en) Double extension ladder or stepladder
CA1018495A (en) Telescoping step ladder
NL7900840A (en) LADDER.
ES435574A1 (en) Foldable ladder
DE3065120D1 (en) Method of and apparatus for forming a joint between a step and a stile of a ladder
GB2036845B (en) Extension trestle ladder
GB1283934A (en) Improvements relating to metal ladders
YU22677A (en) Floor door with a folding ladder
ES234167Y (en) SLIDING OR TRANSFORMABLE METAL LADDER.
GB1006702A (en) Ladders
JPS5545903A (en) Collapsible stepladder with wide step plates
ES238571Y (en) FOLDING LADDER WITH INCORPORATED SCAFFOLDING.
GB1031401A (en) Improvements relating to ladders
GB2031983B (en) Moulded ladder rung
AU498321B2 (en) Folding, ladder
IT8102918A0 (en) EXTENDABLE Rung Ladder EQUIPPED WITH SELF-LOCKING SWIVEL STEP.
GR62309B (en) Triple,folding ladder
ES236247Y (en) FOLDING LADDER.
IE781297L (en) Stiles for ladders
CA1019298A (en) Portable folding fire-escape ladder
GB995495A (en) Improvements in or relating to ladders
GB1552301A (en) Collapsible ladder
NZ179997A (en) Ladder rungs of flattened tubes
JPS5323197A (en) Foldable ladder
JPS53135200A (en) Folding ladder

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Designated state(s): AT CH DE FR GB IT LU NL SE

AK Designated contracting states

Designated state(s): AT CH DE FR GB IT LU NL SE

17P Request for examination filed
ITF It: translation for a ep patent filed
TCAT At: translation of patent claims filed
GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Designated state(s): AT CH DE FR GB IT LU NL SE

REF Corresponds to:

Ref document number: 88

Country of ref document: AT

Date of ref document: 19810715

Kind code of ref document: T

REF Corresponds to:

Ref document number: 2960416

Country of ref document: DE

Date of ref document: 19810924

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: LU

Payment date: 19820416

Year of fee payment: 4

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: AT

Payment date: 19820513

Year of fee payment: 4

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19820531

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: NL

Payment date: 19820531

Year of fee payment: 4

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 19820601

Year of fee payment: 4

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: SE

Payment date: 19820630

Year of fee payment: 4

Ref country code: DE

Payment date: 19820630

Year of fee payment: 4

Ref country code: CH

Payment date: 19820630

Year of fee payment: 4

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AT

Effective date: 19830507

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Effective date: 19830508

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: CH

Effective date: 19830531

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Effective date: 19831201

GBPC Gb: european patent ceased through non-payment of renewal fee
NLV4 Nl: lapsed or anulled due to non-payment of the annual fee
PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19840131

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Effective date: 19840201

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Effective date: 19881118

EUG Se: european patent has lapsed

Ref document number: 79870013.4

Effective date: 19850610

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT