CA923092A - Ladder structure - Google Patents

Ladder structure

Info

Publication number
CA923092A
CA923092A CA095549A CA95549A CA923092A CA 923092 A CA923092 A CA 923092A CA 095549 A CA095549 A CA 095549A CA 95549 A CA95549 A CA 95549A CA 923092 A CA923092 A CA 923092A
Authority
CA
Canada
Prior art keywords
ladder structure
ladder
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
CA095549A
Inventor
E. O. Andreassen Alfred
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.)
Chamberlain Manufacturing Corp
Original Assignee
Chamberlain Manufacturing Corp
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 Chamberlain Manufacturing Corp filed Critical Chamberlain Manufacturing Corp
Application granted granted Critical
Publication of CA923092A publication Critical patent/CA923092A/en
Expired 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
    • E06C7/08—Special construction of longitudinal members, or rungs or other treads
    • E06C7/082—Connections between rungs or treads and longitudinal members
    • E06C7/085—Connections between rungs or treads and longitudinal members achieved by deforming the rung or the stile
    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06C—LADDERS
    • E06C7/00—Component parts, supporting parts, or accessories
    • E06C7/08—Special construction of longitudinal members, or rungs or other treads
    • E06C7/082—Connections between rungs or treads and longitudinal members
    • E06C7/087—Connections between rungs or treads and longitudinal members with a connecting piece installed around the rung

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Ladders (AREA)
CA095549A 1970-04-17 1970-10-14 Ladder structure Expired CA923092A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US2950770A 1970-04-17 1970-04-17

Publications (1)

Publication Number Publication Date
CA923092A true CA923092A (en) 1973-03-20

Family

ID=21849390

Family Applications (1)

Application Number Title Priority Date Filing Date
CA095549A Expired CA923092A (en) 1970-04-17 1970-10-14 Ladder structure

Country Status (2)

Country Link
US (1) US3621936A (en)
CA (1) CA923092A (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5180031A (en) * 1990-12-11 1993-01-19 Smith Daniel S Gardener's aid for sloped ground
US20020139615A1 (en) * 2001-02-02 2002-10-03 Erik Penz Tree climbing and support apparatus, improved for optimal climbing and portability
US11180222B2 (en) * 2018-08-06 2021-11-23 Robin Sabow Attachments for a collapsible marine ladder

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1045957A (en) * 1912-12-03 William dicks
US2013964A (en) * 1931-03-20 1935-09-10 Knight Julian Gordon Electric bushing, fixture stud, etc.
GB822698A (en) * 1958-04-15 1959-10-28 Robert Scott Ramsay Improvements in and relating to ladders
US3354987A (en) * 1965-09-16 1967-11-28 Werner Co Inc R D Ladders
US3472340A (en) * 1966-09-13 1969-10-14 Evald Dahlquist Scaling ladder
US3491853A (en) * 1968-08-26 1970-01-27 Sears Roebuck & Co Rail for ladder
US3481026A (en) * 1968-11-18 1969-12-02 Werner Co Inc R D Method of joining a ladder rung to a side rail

Also Published As

Publication number Publication date
US3621936A (en) 1971-11-23

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