FR484807A - Ball joint and hole guard for inspection window - Google Patents

Ball joint and hole guard for inspection window

Info

Publication number
FR484807A
FR484807A FR484807DA FR484807A FR 484807 A FR484807 A FR 484807A FR 484807D A FR484807D A FR 484807DA FR 484807 A FR484807 A FR 484807A
Authority
FR
France
Prior art keywords
ball joint
inspection window
hole guard
guard
hole
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
Other languages
French (fr)
Inventor
Louis-Nestor Bourdoncle
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Application granted granted Critical
Publication of FR484807A publication Critical patent/FR484807A/en
Expired legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D29/00—Independent underground or underwater structures; Retaining walls
    • E02D29/12—Manhole shafts; Other inspection or access chambers; Accessories therefor
    • E02D29/14—Covers for manholes or the like; Frames for covers
    • E02D29/1418—Covers for manholes or the like; Frames for covers with implements to assist in lifting, e.g. counterweights, springs

Landscapes

  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • Paleontology (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
FR484807D 1917-03-09 1917-03-09 Ball joint and hole guard for inspection window Expired FR484807A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR484807T 1917-03-09

Publications (1)

Publication Number Publication Date
FR484807A true FR484807A (en) 1917-11-13

Family

ID=1521573

Family Applications (1)

Application Number Title Priority Date Filing Date
FR484807D Expired FR484807A (en) 1917-03-09 1917-03-09 Ball joint and hole guard for inspection window

Country Status (1)

Country Link
FR (1) FR484807A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2554473A1 (en) * 1983-11-08 1985-05-10 Dumortier Robert Wedging device for road manhole articulated cover

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2554473A1 (en) * 1983-11-08 1985-05-10 Dumortier Robert Wedging device for road manhole articulated cover

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