WO2009089555A3 - Support - Google Patents

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Publication number
WO2009089555A3
WO2009089555A3 PCT/ZA2009/000001 ZA2009000001W WO2009089555A3 WO 2009089555 A3 WO2009089555 A3 WO 2009089555A3 ZA 2009000001 W ZA2009000001 W ZA 2009000001W WO 2009089555 A3 WO2009089555 A3 WO 2009089555A3
Authority
WO
WIPO (PCT)
Prior art keywords
support
container
inflation
react
allowed
Prior art date
Application number
PCT/ZA2009/000001
Other languages
French (fr)
Other versions
WO2009089555A2 (en
Inventor
Dion Booyens
Original Assignee
Mine Support Products (Pty) Ltd
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 Mine Support Products (Pty) Ltd filed Critical Mine Support Products (Pty) Ltd
Publication of WO2009089555A2 publication Critical patent/WO2009089555A2/en
Publication of WO2009089555A3 publication Critical patent/WO2009089555A3/en

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH DRILLING; MINING
    • E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D15/00—Props; Chocks, e.g. made of flexible containers filled with backfilling material
    • E21D15/48—Chocks or the like
    • E21D15/483—Chocks or the like made of flexible containers, e.g. inflatable, with or without reinforcement, e.g. filled with water, backfilling material or the like
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
    • B66F3/00—Devices, e.g. jacks, adapted for uninterrupted lifting of loads
    • B66F3/24—Devices, e.g. jacks, adapted for uninterrupted lifting of loads fluid-pressure operated
    • B66F3/25—Constructional features
    • B66F3/35—Inflatable flexible elements, e.g. bellows

Abstract

An underground support (10) which includes a gas-inflatable reinforced container (16) into which, after inflation, water is introduced and allowed to react with a settable substance inside the container.
PCT/ZA2009/000001 2008-01-07 2009-01-07 Support WO2009089555A2 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
ZA2008/00017 2008-01-07
ZA200800017 2008-01-07
ZA200808735 2008-10-14
ZA2008/08735 2008-10-14

Publications (2)

Publication Number Publication Date
WO2009089555A2 WO2009089555A2 (en) 2009-07-16
WO2009089555A3 true WO2009089555A3 (en) 2009-08-27

Family

ID=40741044

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/ZA2009/000001 WO2009089555A2 (en) 2008-01-07 2009-01-07 Support

Country Status (1)

Country Link
WO (1) WO2009089555A2 (en)

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3695582A (en) * 1970-11-02 1972-10-03 Max R Wheeler Pneumatic jack for motor vehicles
US4560145A (en) * 1979-04-09 1985-12-24 Widmer Stanley W Air bag jack
US5143340A (en) * 1989-05-30 1992-09-01 Fosroc International Limited Load support
US5823718A (en) * 1996-07-25 1998-10-20 Alnet (Proprietary) Limited Pillar bag
EP0903317A1 (en) * 1997-09-23 1999-03-24 Vernon T Mullican Pneumatic jack
US20050070187A1 (en) * 2003-09-30 2005-03-31 Cavenagh Edward J. Form for containing settable filler material during setting
US20060086885A1 (en) * 2004-10-27 2006-04-27 Efficient Mining Systems Llc. Load-bearing pressurized liquid column

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3695582A (en) * 1970-11-02 1972-10-03 Max R Wheeler Pneumatic jack for motor vehicles
US4560145A (en) * 1979-04-09 1985-12-24 Widmer Stanley W Air bag jack
US5143340A (en) * 1989-05-30 1992-09-01 Fosroc International Limited Load support
US5823718A (en) * 1996-07-25 1998-10-20 Alnet (Proprietary) Limited Pillar bag
EP0903317A1 (en) * 1997-09-23 1999-03-24 Vernon T Mullican Pneumatic jack
US20050070187A1 (en) * 2003-09-30 2005-03-31 Cavenagh Edward J. Form for containing settable filler material during setting
US20060086885A1 (en) * 2004-10-27 2006-04-27 Efficient Mining Systems Llc. Load-bearing pressurized liquid column

Also Published As

Publication number Publication date
WO2009089555A2 (en) 2009-07-16

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