ES342888A1 - Un dispositivo de escala extensible. - Google Patents

Un dispositivo de escala extensible.

Info

Publication number
ES342888A1
ES342888A1 ES342888A ES342888A ES342888A1 ES 342888 A1 ES342888 A1 ES 342888A1 ES 342888 A ES342888 A ES 342888A ES 342888 A ES342888 A ES 342888A ES 342888 A1 ES342888 A1 ES 342888A1
Authority
ES
Spain
Prior art keywords
endless
section
base section
endless cable
cable means
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
Application number
ES342888A
Other languages
English (en)
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.)
Werner Co
RD Werner Co Inc
Original Assignee
Werner Co
RD Werner Co 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 Werner Co, RD Werner Co Inc filed Critical Werner Co
Publication of ES342888A1 publication Critical patent/ES342888A1/es
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
    • E06C1/04—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

Landscapes

  • Ladders (AREA)
  • Ropes Or Cables (AREA)
ES342888A 1967-05-25 1967-07-11 Un dispositivo de escala extensible. Expired ES342888A1 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US641176A US3402788A (en) 1967-05-25 1967-05-25 Extension ladders

Publications (1)

Publication Number Publication Date
ES342888A1 true ES342888A1 (es) 1968-08-01

Family

ID=24571256

Family Applications (1)

Application Number Title Priority Date Filing Date
ES342888A Expired ES342888A1 (es) 1967-05-25 1967-07-11 Un dispositivo de escala extensible.

Country Status (3)

Country Link
US (1) US3402788A (es)
DE (1) DE1679130A1 (es)
ES (1) ES342888A1 (es)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3902569A (en) * 1974-02-20 1975-09-02 Roger I Bair Extension ladder
NO167473C (no) * 1989-05-16 1991-11-06 Raufoss As Heisestige
US8215452B2 (en) * 2007-12-14 2012-07-10 Robert Gail Stewart Extendable ladder for trailer, motor home, or other vehicle
US8413764B1 (en) * 2009-09-29 2013-04-09 David A. Cohen Ladder safety device, systems and methods of arresting falls from ladders
WO2015042277A1 (en) * 2013-09-18 2015-03-26 Wing Enterprises, Incorporated Ladders including rope and pulley system and fall protection
US20190338593A1 (en) * 2017-07-17 2019-11-07 Safeworks, Llc Integrated climb assist and fall arrest systems and methods
US11866995B2 (en) 2019-12-27 2024-01-09 Werner Co. Ladder with box rails having a collar

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US375250A (en) * 1887-12-20 Extension
US75052A (en) * 1868-03-03 Benjamin
US3337001A (en) * 1966-01-20 1967-08-22 Werner Co Inc R D Extension ladders
US3347340A (en) * 1966-01-20 1967-10-17 Werner Co Inc R D Extension ladders

Also Published As

Publication number Publication date
DE1679130A1 (de) 1971-05-27
US3402788A (en) 1968-09-24

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Legal Events

Date Code Title Description
FD1A Patent lapsed

Effective date: 19870427