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WO2009151606A3 - Manhole cover stop mechanism - Google Patents

Manhole cover stop mechanism Download PDF

Info

Publication number
WO2009151606A3
WO2009151606A3 PCT/US2009/003503 US2009003503W WO2009151606A3 WO 2009151606 A3 WO2009151606 A3 WO 2009151606A3 US 2009003503 W US2009003503 W US 2009003503W WO 2009151606 A3 WO2009151606 A3 WO 2009151606A3
Authority
WO
WIPO (PCT)
Prior art keywords
stop member
manhole cover
stop mechanism
stop
holder body
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.)
Ceased
Application number
PCT/US2009/003503
Other languages
French (fr)
Other versions
WO2009151606A2 (en
Inventor
David Stadler
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
Priority to CA2727604A priority Critical patent/CA2727604C/en
Publication of WO2009151606A2 publication Critical patent/WO2009151606A2/en
Publication of WO2009151606A3 publication Critical patent/WO2009151606A3/en
Anticipated expiration legal-status Critical
Ceased 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
    • E02D29/1427—Locking devices

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)
  • Underground Structures, Protecting, Testing And Restoring Foundations (AREA)

Abstract

A stop mechanism advantageously combined with a manhole cover includes a holder body having a passage which slidably receives a stop member able to be cammed in and out upon advance or retraction of a threaded drive member having an enlarged tip engaged with a down sloping channel formed in the stop member. Upper sides of the channel engage the tip upon reversal of the drive member to cam the stop member back into the holder body. The stop member when extends prevents removal of the cover from being blown completely free of the manhole vault structure in the event of an explosion.
PCT/US2009/003503 2008-06-11 2009-06-11 Manhole cover stop mechanism Ceased WO2009151606A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CA2727604A CA2727604C (en) 2008-06-11 2009-06-11 Manhole cover stop mechanism

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US13175408P 2008-06-11 2008-06-11
US61/131,754 2008-06-11

Publications (2)

Publication Number Publication Date
WO2009151606A2 WO2009151606A2 (en) 2009-12-17
WO2009151606A3 true WO2009151606A3 (en) 2010-03-25

Family

ID=41417292

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2009/003503 Ceased WO2009151606A2 (en) 2008-06-11 2009-06-11 Manhole cover stop mechanism

Country Status (2)

Country Link
CA (1) CA2727604C (en)
WO (1) WO2009151606A2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102183570B1 (en) * 2020-10-19 2020-11-26 (주)대명엔지니어링 The safety unit for the ground borehole protection

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4902165A (en) * 1988-02-19 1990-02-20 Embree Lewis A Locking valve cover
KR100199309B1 (en) * 1996-11-20 1999-06-15 최정환 Manhole lid lock for communication
KR200192124Y1 (en) * 2000-03-29 2000-08-16 삼화주철공업주식회사 Locking device of manhole cover
US20070286677A1 (en) * 2006-06-12 2007-12-13 David Stadler Manhole Cover Security Lock with Controlled Pressure Release

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4902165A (en) * 1988-02-19 1990-02-20 Embree Lewis A Locking valve cover
KR100199309B1 (en) * 1996-11-20 1999-06-15 최정환 Manhole lid lock for communication
KR200192124Y1 (en) * 2000-03-29 2000-08-16 삼화주철공업주식회사 Locking device of manhole cover
US20070286677A1 (en) * 2006-06-12 2007-12-13 David Stadler Manhole Cover Security Lock with Controlled Pressure Release

Also Published As

Publication number Publication date
CA2727604A1 (en) 2009-12-17
WO2009151606A2 (en) 2009-12-17
CA2727604C (en) 2016-11-22

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