CA1062684A - Portique pour contreventer les tranchees - Google Patents

Portique pour contreventer les tranchees

Info

Publication number
CA1062684A
CA1062684A CA304,555A CA304555A CA1062684A CA 1062684 A CA1062684 A CA 1062684A CA 304555 A CA304555 A CA 304555A CA 1062684 A CA1062684 A CA 1062684A
Authority
CA
Canada
Prior art keywords
flanges
columns
trench
box
portal frame
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
CA304,555A
Other languages
English (en)
Inventor
Allen J. Nieber
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.)
Efficiency Production Inc
Original Assignee
Efficiency Production 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
Priority claimed from US05/731,131 external-priority patent/US4090365A/en
Application filed by Efficiency Production Inc filed Critical Efficiency Production Inc
Priority to CA304,555A priority Critical patent/CA1062684A/fr
Application granted granted Critical
Publication of CA1062684A publication Critical patent/CA1062684A/fr
Expired legal-status Critical Current

Links

Landscapes

  • Stackable Containers (AREA)
CA304,555A 1976-10-12 1978-06-01 Portique pour contreventer les tranchees Expired CA1062684A (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CA304,555A CA1062684A (fr) 1976-10-12 1978-06-01 Portique pour contreventer les tranchees

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US05/731,131 US4090365A (en) 1976-10-12 1976-10-12 Portal frame for trench box stack
CA285,632A CA1062683A (fr) 1976-10-12 1977-08-29 Chassis porteur pour caniveaux empiles en tranchee
CA304,555A CA1062684A (fr) 1976-10-12 1978-06-01 Portique pour contreventer les tranchees

Publications (1)

Publication Number Publication Date
CA1062684A true CA1062684A (fr) 1979-09-18

Family

ID=27165253

Family Applications (1)

Application Number Title Priority Date Filing Date
CA304,555A Expired CA1062684A (fr) 1976-10-12 1978-06-01 Portique pour contreventer les tranchees

Country Status (1)

Country Link
CA (1) CA1062684A (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4541509A (en) * 1982-01-15 1985-09-17 Harsco Corporation Shoring frame

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4541509A (en) * 1982-01-15 1985-09-17 Harsco Corporation Shoring frame

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