US3757896A - Ladders - Google Patents

Ladders Download PDF

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Publication number
US3757896A
US3757896A US00220830A US3757896DA US3757896A US 3757896 A US3757896 A US 3757896A US 00220830 A US00220830 A US 00220830A US 3757896D A US3757896D A US 3757896DA US 3757896 A US3757896 A US 3757896A
Authority
US
United States
Prior art keywords
ladder
rung
rungs
links
link
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.)
Expired - Lifetime
Application number
US00220830A
Other languages
English (en)
Inventor
W 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.)
WALTHAMS Ltd
Original Assignee
WALTHAMS Ltd
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 WALTHAMS Ltd filed Critical WALTHAMS Ltd
Application granted granted Critical
Publication of US3757896A publication Critical patent/US3757896A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B29/00—Accommodation for crew or passengers not otherwise provided for
    • B63B29/20—Arrangements or adaptations of ladders
    • B63B29/205—Arrangements or adaptations of ladders on masts
    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06C—LADDERS
    • E06C1/00—Ladders in general
    • E06C1/52—Ladders in general with non-rigid longitudinal members
    • E06C1/56—Rope or chain ladders

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Ocean & Marine Engineering (AREA)
  • Ladders (AREA)
US00220830A 1971-02-03 1972-01-26 Ladders Expired - Lifetime US3757896A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB382371 1971-02-03

Publications (1)

Publication Number Publication Date
US3757896A true US3757896A (en) 1973-09-11

Family

ID=9765606

Family Applications (1)

Application Number Title Priority Date Filing Date
US00220830A Expired - Lifetime US3757896A (en) 1971-02-03 1972-01-26 Ladders

Country Status (14)

Country Link
US (1) US3757896A (fr)
JP (1) JPS5650078B1 (fr)
AU (1) AU459312B2 (fr)
BE (1) BE778793A (fr)
CA (1) CA965756A (fr)
DE (1) DE2205167A1 (fr)
ES (1) ES399753A1 (fr)
FR (1) FR2125053A5 (fr)
GB (1) GB1355523A (fr)
IT (1) IT952858B (fr)
NL (1) NL7201374A (fr)
NO (1) NO135583C (fr)
SE (1) SE372592B (fr)
ZA (1) ZA72554B (fr)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4215766A (en) * 1978-11-30 1980-08-05 Supreme Aluminum Industries, Ltd. Construction module
US4231448A (en) * 1979-08-06 1980-11-04 Jensen Svend O Demountable boat ladder
US4231449A (en) * 1976-04-28 1980-11-04 Laurita Joseph N Foldable ladder
CN102556288A (zh) * 2012-02-08 2012-07-11 太阳鸟游艇股份有限公司 一种船舶艏尖舱室逃生窗口的逃生梯
US20130037351A1 (en) * 2011-08-12 2013-02-14 Atlas Devices, Llc Locking joint for collapsible ladders and other structures
US20150224379A1 (en) * 2014-02-13 2015-08-13 Pro Performance Sports, L.L.C. Agility ladder
US20210189801A1 (en) * 2017-10-20 2021-06-24 Max Bögl Wind AG Method for Erecting a Tower, Tower Segment, Supply Structure, and Tower
RU2778638C1 (ru) * 2021-12-01 2022-08-22 Публичное акционерное общество "ОНХП" Складная лестница

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2123470B (en) * 1982-07-14 1986-02-12 Collafield Limited Fire escape ladder
GB8423102D0 (en) * 1984-09-13 1984-10-17 Watling N C Suspension ladder
WO1990015915A1 (fr) * 1989-06-15 1990-12-27 Gosling L J Echelle pliable
CA2036956A1 (fr) * 1991-02-25 1992-08-26 Maurice Marion Barre d'appui destinee a faciliter les mouvements entre un quai et une embarcation
RU2742796C1 (ru) * 2020-05-22 2021-02-10 Публичное акционерное общество "ОНХП" Складная лестница
RU208392U1 (ru) * 2021-08-02 2021-12-16 Федеральное государственное бюджетное образовательное учреждение высшего образования "Рязанский государственный агротехнологический университет имени П.А. Костычева" (ФГБОУ ВО РГАТУ) Складная лестница

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US628824A (en) * 1899-04-18 1899-07-11 Henry J Maier Fire-escape.
US1065166A (en) * 1911-11-23 1913-06-17 Michael T Murphy Folding ladder.
US2592006A (en) * 1948-08-17 1952-04-08 Wayne J Gibbons Prop attachment for ladders
US2607523A (en) * 1947-10-29 1952-08-19 Williams Wilfred Flexible ladder
US2998863A (en) * 1959-08-03 1961-09-05 White Metal Rolling & Stamping Fire escape ladders

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4222311Y1 (fr) * 1965-11-10 1967-12-19
JPS442952Y1 (fr) * 1966-06-17 1969-02-03

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US628824A (en) * 1899-04-18 1899-07-11 Henry J Maier Fire-escape.
US1065166A (en) * 1911-11-23 1913-06-17 Michael T Murphy Folding ladder.
US2607523A (en) * 1947-10-29 1952-08-19 Williams Wilfred Flexible ladder
US2592006A (en) * 1948-08-17 1952-04-08 Wayne J Gibbons Prop attachment for ladders
US2998863A (en) * 1959-08-03 1961-09-05 White Metal Rolling & Stamping Fire escape ladders

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4231449A (en) * 1976-04-28 1980-11-04 Laurita Joseph N Foldable ladder
US4215766A (en) * 1978-11-30 1980-08-05 Supreme Aluminum Industries, Ltd. Construction module
US4231448A (en) * 1979-08-06 1980-11-04 Jensen Svend O Demountable boat ladder
US20160090783A1 (en) * 2011-08-12 2016-03-31 Atlas Devices, Llc Locking joint for collapsible ladders and other structures
US20130037351A1 (en) * 2011-08-12 2013-02-14 Atlas Devices, Llc Locking joint for collapsible ladders and other structures
US9879480B2 (en) * 2011-08-12 2018-01-30 Atlas Devices, Llc Locking joint for collapsible ladders and other structures
US9222307B2 (en) * 2011-08-12 2015-12-29 Atlas Devices, Llc Locking joint for collapsible ladders and other structures
CN102556288A (zh) * 2012-02-08 2012-07-11 太阳鸟游艇股份有限公司 一种船舶艏尖舱室逃生窗口的逃生梯
US9675830B2 (en) * 2014-02-13 2017-06-13 Pro Performance Sports, L.L.C. Agility ladder
US20170246523A1 (en) * 2014-02-13 2017-08-31 Pro Performance Sports, L.L.C. Agility ladder
EP3105402A4 (fr) * 2014-02-13 2017-11-29 Pro Performance Sports, LLC Échelle d'agilité
US20150224379A1 (en) * 2014-02-13 2015-08-13 Pro Performance Sports, L.L.C. Agility ladder
US20210189801A1 (en) * 2017-10-20 2021-06-24 Max Bögl Wind AG Method for Erecting a Tower, Tower Segment, Supply Structure, and Tower
US11773650B2 (en) * 2017-10-20 2023-10-03 Max Bögl Wind AG Method for erecting a tower, tower segment, supply structure, and tower
RU2778638C1 (ru) * 2021-12-01 2022-08-22 Публичное акционерное общество "ОНХП" Складная лестница

Also Published As

Publication number Publication date
CA965756A (en) 1975-04-08
NL7201374A (fr) 1972-08-07
NO135583C (fr) 1977-04-27
ES399753A1 (es) 1974-11-16
ZA72554B (en) 1972-11-29
GB1355523A (en) 1974-06-05
BE778793A (fr) 1972-05-30
SE372592B (fr) 1974-12-23
AU459312B2 (en) 1975-03-04
IT952858B (it) 1973-07-30
FR2125053A5 (fr) 1972-09-22
AU3854172A (en) 1972-02-02
NO135583B (fr) 1977-01-17
DE2205167A1 (de) 1972-08-17
JPS5650078B1 (fr) 1981-11-26

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