EP2497894A4 - Leveling device of ladder - Google Patents

Leveling device of ladder

Info

Publication number
EP2497894A4
EP2497894A4 EP09851119.9A EP09851119A EP2497894A4 EP 2497894 A4 EP2497894 A4 EP 2497894A4 EP 09851119 A EP09851119 A EP 09851119A EP 2497894 A4 EP2497894 A4 EP 2497894A4
Authority
EP
European Patent Office
Prior art keywords
ladder
leveling device
leveling
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.)
Withdrawn
Application number
EP09851119.9A
Other languages
German (de)
French (fr)
Other versions
EP2497894A1 (en
Inventor
Hae-Dong Lee
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.)
D&P TECH Inc
D & P Tech Inc
Original Assignee
D&P TECH Inc
D & P Tech 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
Application filed by D&P TECH Inc, D & P Tech Inc filed Critical D&P TECH Inc
Publication of EP2497894A1 publication Critical patent/EP2497894A1/en
Publication of EP2497894A4 publication Critical patent/EP2497894A4/en
Withdrawn legal-status Critical Current

Links

Classifications

    • 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
    • E06C7/44—Means for mounting ladders on uneven ground

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Ladders (AREA)
EP09851119.9A 2009-11-03 2009-11-03 Leveling device of ladder Withdrawn EP2497894A4 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/KR2009/006430 WO2011055863A1 (en) 2009-11-03 2009-11-03 Leveling device of ladder

Publications (2)

Publication Number Publication Date
EP2497894A1 EP2497894A1 (en) 2012-09-12
EP2497894A4 true EP2497894A4 (en) 2015-04-22

Family

ID=43970093

Family Applications (1)

Application Number Title Priority Date Filing Date
EP09851119.9A Withdrawn EP2497894A4 (en) 2009-11-03 2009-11-03 Leveling device of ladder

Country Status (3)

Country Link
EP (1) EP2497894A4 (en)
JP (1) JP2013510251A (en)
WO (1) WO2011055863A1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU2017202925A1 (en) * 2016-05-17 2017-12-07 Werner Co. Ladder leveler and method
CN107654185A (en) * 2016-07-26 2018-02-02 朱国仕 Ladder servicing unit
CN111764816A (en) * 2020-08-19 2020-10-13 湖州天际环保技术有限公司 A adjustable V-arrangement ladder for interior decoration
KR200496366Y1 (en) * 2022-01-27 2023-01-11 조상현 Folding Ladder for Piloti Building Emergency Evacuation

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2914135A (en) * 1957-05-28 1959-11-24 Seeger Williams Inc Equalizing foot attachment
JPS51119934U (en) * 1975-03-26 1976-09-29
JPH0714100U (en) * 1993-08-23 1995-03-10 株式会社本宏製作所 Auxiliary leg fixing device such as stepladder
JP2001248374A (en) * 2000-03-02 2001-09-14 Arufa:Kk Support device for ladder

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0535274Y2 (en) * 1985-05-29 1993-09-07
JPH0279800U (en) * 1988-12-05 1990-06-19
KR200311191Y1 (en) * 2002-10-01 2003-04-26 고정만 Height­controllable ladder
KR20080004290U (en) * 2007-03-28 2008-10-02 정원수 Horizontal regulation tool
KR20090053455A (en) * 2007-11-23 2009-05-27 장영수 A ladder
KR100982624B1 (en) * 2008-02-19 2010-09-15 김성택 Ladder having function for preventing overturn

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2914135A (en) * 1957-05-28 1959-11-24 Seeger Williams Inc Equalizing foot attachment
JPS51119934U (en) * 1975-03-26 1976-09-29
JPH0714100U (en) * 1993-08-23 1995-03-10 株式会社本宏製作所 Auxiliary leg fixing device such as stepladder
JP2001248374A (en) * 2000-03-02 2001-09-14 Arufa:Kk Support device for ladder

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO2011055863A1 *

Also Published As

Publication number Publication date
JP2013510251A (en) 2013-03-21
WO2011055863A1 (en) 2011-05-12
EP2497894A1 (en) 2012-09-12

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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

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17P Request for examination filed

Effective date: 20120530

AK Designated contracting states

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Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO SE SI SK SM TR

DAX Request for extension of the european patent (deleted)
RA4 Supplementary search report drawn up and despatched (corrected)

Effective date: 20150325

RIC1 Information provided on ipc code assigned before grant

Ipc: E06C 7/44 20060101AFI20150319BHEP

Ipc: E06C 7/42 20060101ALI20150319BHEP

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

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 20151024