CA1136104A - Echelle en metal, et methode de faconnage et d'assemblage connexe - Google Patents

Echelle en metal, et methode de faconnage et d'assemblage connexe

Info

Publication number: CA1136104A
Authority: CA; Canada
Prior art keywords: rung; web; embossments; rail; embossment
Prior art date: 1980-02-26
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

CA000346470A

Other languages

English (en)

Inventor

Harold W. Stillman, Jr.

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.)

Sears Roebuck and Co

Original Assignee

Sears Roebuck and Co

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.)

1980-02-26

Filing date

1980-02-26

Publication date

1982-11-23

1980-02-26 Application filed by Sears Roebuck and Co filed Critical Sears Roebuck and Co

1980-02-26 Priority to CA000346470A priority Critical patent/CA1136104A/fr

1982-11-23 Application granted granted Critical

1982-11-23 Publication of CA1136104A publication Critical patent/CA1136104A/fr

Status Expired legal-status Critical Current

Links

229910052751 metal Inorganic materials 0.000 title claims abstract description 11
239000002184 metal Substances 0.000 title claims abstract description 11
238000004519 manufacturing process Methods 0.000 title claims abstract description 8
238000000034 method Methods 0.000 claims description 9
239000011324 bead Substances 0.000 claims description 3
239000000463 material Substances 0.000 abstract description 5
238000004049 embossing Methods 0.000 description 7
238000005452 bending Methods 0.000 description 5
229910052782 aluminium Inorganic materials 0.000 description 4
XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 4
238000010276 construction Methods 0.000 description 4
230000015572 biosynthetic process Effects 0.000 description 1
230000000052 comparative effect Effects 0.000 description 1
230000002089 crippling effect Effects 0.000 description 1
230000007812 deficiency Effects 0.000 description 1
230000000694 effects Effects 0.000 description 1
230000000750 progressive effect Effects 0.000 description 1
238000005496 tempering Methods 0.000 description 1

Landscapes

Ladders (AREA)

CA000346470A 1980-02-26 1980-02-26 Echelle en metal, et methode de faconnage et d'assemblage connexe Expired CA1136104A (fr)

Priority Applications (1)

Application Number	Priority Date	Filing Date	Title
CA000346470A CA1136104A (fr)	1980-02-26	1980-02-26	Echelle en metal, et methode de faconnage et d'assemblage connexe

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
CA000346470A CA1136104A (fr)	1980-02-26	1980-02-26	Echelle en metal, et methode de faconnage et d'assemblage connexe

Publications (1)

Publication Number	Publication Date
CA1136104A true CA1136104A (fr)	1982-11-23

Family

ID=4116327

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
CA000346470A Expired CA1136104A (fr)	1980-02-26	1980-02-26	Echelle en metal, et methode de faconnage et d'assemblage connexe

Country Status (1)

Country	Link
CA (1)	CA1136104A (fr)

1980
- 1980-02-26 CA CA000346470A patent/CA1136104A/fr not_active Expired

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Legal Events

Date	Code	Title	Description
1999-11-23	MKEX	Expiry