NL7908558A - Vergrendelingsinrichting voor een in een twee-potig trapladderonderstel verticaal verschuifbare schuif- ladder. - Google Patents

Vergrendelingsinrichting voor een in een twee-potig trapladderonderstel verticaal verschuifbare schuif- ladder. Download PDF

Info

Publication number
NL7908558A
NL7908558A NL7908558A NL7908558A NL7908558A NL 7908558 A NL7908558 A NL 7908558A NL 7908558 A NL7908558 A NL 7908558A NL 7908558 A NL7908558 A NL 7908558A NL 7908558 A NL7908558 A NL 7908558A
Authority
NL
Netherlands
Prior art keywords
ladder
rung
support
sliding
sliding ladder
Prior art date
Application number
NL7908558A
Other languages
English (en)
Dutch (nl)
Original Assignee
Werner Co Inc R D
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 Werner Co Inc R D filed Critical Werner Co Inc R D
Publication of NL7908558A publication Critical patent/NL7908558A/nl

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
    • E06C7/06—Securing devices or hooks for parts of extensible ladders
    • 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
    • E06C1/00—Ladders in general
    • E06C1/02—Ladders in general with rigid longitudinal member or members
    • E06C1/14—Ladders capable of standing by themselves
    • E06C1/16—Ladders capable of standing by themselves with hinged struts which rest on the ground
    • E06C1/20—Ladders capable of standing by themselves with hinged struts which rest on the ground with supporting struts formed as poles
    • E06C1/22—Ladders 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
    • 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
    • E06C1/39—Ladders having platforms; Ladders changeable into platforms

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Ladders (AREA)
NL7908558A 1978-12-11 1979-11-26 Vergrendelingsinrichting voor een in een twee-potig trapladderonderstel verticaal verschuifbare schuif- ladder. NL7908558A (nl)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US05/968,210 US4240522A (en) 1978-12-11 1978-12-11 Extension trestle ladder
US96821078 1978-12-11

Publications (1)

Publication Number Publication Date
NL7908558A true NL7908558A (nl) 1980-06-13

Family

ID=25513912

Family Applications (1)

Application Number Title Priority Date Filing Date
NL7908558A NL7908558A (nl) 1978-12-11 1979-11-26 Vergrendelingsinrichting voor een in een twee-potig trapladderonderstel verticaal verschuifbare schuif- ladder.

Country Status (11)

Country Link
US (1) US4240522A (enExample)
JP (1) JPS5581994A (enExample)
AU (1) AU526911B2 (enExample)
BR (1) BR7907958A (enExample)
CA (1) CA1123799A (enExample)
DE (1) DE2949636A1 (enExample)
ES (1) ES253567Y (enExample)
FR (1) FR2444152A1 (enExample)
GB (1) GB2036845B (enExample)
NL (1) NL7908558A (enExample)
NZ (1) NZ192044A (enExample)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB9022043D0 (en) * 1990-10-10 1990-11-21 Daniels Seymour C Stair apparatus
CA2054670C (en) * 1990-11-06 1999-05-25 Gerald O. Hustad Food package having a compartmentalized rigid base tray
US5740575A (en) * 1995-09-29 1998-04-21 Gordon; Julian D. Ramp systems
US5922376A (en) * 1996-01-02 1999-07-13 Privert; Peter Nestable food and beverage package
CA2215873C (en) * 1997-09-10 2003-12-02 J.M. Schneider Inc. Improvements in packages for a food tray
US8992388B2 (en) * 2011-06-10 2015-03-31 Gym-Mark, Inc. Modular ladder frame playground system
US11131103B2 (en) * 2016-03-22 2021-09-28 Werner Co. Assembly, plank adapter for a work stand and method
CN109025781A (zh) * 2018-10-29 2018-12-18 中航鼎衡造船有限公司 一种滑动型人字梯

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US838831A (en) * 1906-01-04 1906-12-18 Daniel W Church Extension step-ladder.
US947810A (en) * 1908-10-27 1910-02-01 Wright L Glidden Extension ladder and trestle.
US1140390A (en) * 1913-04-29 1915-05-25 Fred H Moulton Extension-trestle.
US1965311A (en) * 1933-09-09 1934-07-03 Herman B Gaffers Combined extension ladder and trestle
US2210803A (en) * 1938-08-25 1940-08-06 Stanley E Dunn Extension ladder
US2144440A (en) * 1938-09-16 1939-01-17 Herman B Gaffers Extension ladder trestle
US2947378A (en) * 1959-06-29 1960-08-02 Bergur L Brynjolfsson Extensible trestle
JPS4912354U (enExample) * 1972-05-15 1974-02-01

Also Published As

Publication number Publication date
FR2444152B1 (enExample) 1983-06-17
DE2949636A1 (de) 1980-06-19
AU5364379A (en) 1980-07-10
CA1123799A (en) 1982-05-18
NZ192044A (en) 1982-05-25
JPS6342069B2 (enExample) 1988-08-19
US4240522A (en) 1980-12-23
AU526911B2 (en) 1983-02-03
GB2036845B (en) 1983-01-06
JPS5581994A (en) 1980-06-20
BR7907958A (pt) 1980-07-08
FR2444152A1 (fr) 1980-07-11
GB2036845A (en) 1980-07-02
ES253567U (es) 1981-06-16
ES253567Y (es) 1981-12-01

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Legal Events

Date Code Title Description
A85 Still pending on 85-01-01
BA A request for search or an international-type search has been filed
BB A search report has been drawn up
BC A request for examination has been filed
BV The patent application has lapsed