ZA201008369B - A pressure indicating device - Google Patents

A pressure indicating device

Info

Publication number
ZA201008369B
ZA201008369B ZA2010/08369A ZA201008369A ZA201008369B ZA 201008369 B ZA201008369 B ZA 201008369B ZA 2010/08369 A ZA2010/08369 A ZA 2010/08369A ZA 201008369 A ZA201008369 A ZA 201008369A ZA 201008369 B ZA201008369 B ZA 201008369B
Authority
ZA
South Africa
Prior art keywords
indicating device
pressure indicating
pressure
indicating
Prior art date
Application number
ZA2010/08369A
Other languages
English (en)
Inventor
David Charles Tyrer
Original Assignee
Rzt Zelpy 5260 (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 Rzt Zelpy 5260 (Pty) Ltd filed Critical Rzt Zelpy 5260 (Pty) Ltd
Publication of ZA201008369B publication Critical patent/ZA201008369B/en

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH DRILLING; MINING
    • E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D21/00—Anchoring-bolts for roof, floor in galleries or longwall working, or shaft-lining protection
    • E21D21/0026—Anchoring-bolts for roof, floor in galleries or longwall working, or shaft-lining protection characterised by constructional features of the bolts
    • E21D21/0033—Anchoring-bolts for roof, floor in galleries or longwall working, or shaft-lining protection characterised by constructional features of the bolts having a jacket or outer tube
    • 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
    • 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
    • E21D15/50—Component parts or details of props
    • E21D15/51—Component parts or details of props specially adapted to hydraulic, pneumatic, or hydraulic-pneumatic props, e.g. arrangements of relief valves
    • E21D15/512—Arrangement of valves
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH DRILLING; MINING
    • E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D21/00—Anchoring-bolts for roof, floor in galleries or longwall working, or shaft-lining protection
    • E21D21/0026—Anchoring-bolts for roof, floor in galleries or longwall working, or shaft-lining protection characterised by constructional features of the bolts
    • E21D21/0073—Anchoring-bolts having an inflatable sleeve, e.g. hollow sleeve expanded by a fluid
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH DRILLING; MINING
    • E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D21/00—Anchoring-bolts for roof, floor in galleries or longwall working, or shaft-lining protection
    • E21D21/0093—Accessories
ZA2010/08369A 2009-11-23 2010-11-23 A pressure indicating device ZA201008369B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ZA200908237 2009-11-23
ZA200908830 2009-12-11

Publications (1)

Publication Number Publication Date
ZA201008369B true ZA201008369B (en) 2012-02-29

Family

ID=44060427

Family Applications (2)

Application Number Title Priority Date Filing Date
ZA2010/08369A ZA201008369B (en) 2009-11-23 2010-11-23 A pressure indicating device
ZA2012/03695A ZA201203695B (en) 2009-11-23 2012-05-21 A pressure indicating device

Family Applications After (1)

Application Number Title Priority Date Filing Date
ZA2012/03695A ZA201203695B (en) 2009-11-23 2012-05-21 A pressure indicating device

Country Status (6)

Country Link
CL (1) CL2012001323A1 (es)
CO (1) CO6501133A2 (es)
EA (2) EA029398B1 (es)
PE (1) PE20130031A1 (es)
WO (1) WO2011063433A2 (es)
ZA (2) ZA201008369B (es)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2777995C (en) 2011-06-08 2018-10-30 Giddicca (Pty) Ltd An adhesive containing tubular rock anchor
WO2018136982A1 (en) * 2017-01-18 2018-07-26 Ncm Innovations (Pty) Ltd Preload device pressure indicator with dye capsule

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NO159201C (no) * 1980-09-08 1988-12-07 Atlas Copco Ab Fremgangsmaate ved bolting i fjell og kombinert ekspansjonsbolt og installasjonsanordning for samme.
US4700924A (en) * 1986-10-06 1987-10-20 Vetco Gray, Inc. Pressure energized rotary hydraulic seal
AU2003263117A1 (en) * 2002-08-19 2004-03-03 Brendan Robert Crompton Rock bolt
WO2009066246A2 (en) * 2007-11-21 2009-05-28 Robert Custers Hydraulically inflatable rock anchor with pressure indicator

Also Published As

Publication number Publication date
WO2011063433A3 (en) 2012-01-12
CL2012001323A1 (es) 2013-11-29
EA201290204A1 (ru) 2012-11-30
EA029398B1 (ru) 2018-03-30
WO2011063433A2 (en) 2011-05-26
ZA201203695B (en) 2013-01-30
CO6501133A2 (es) 2012-08-15
EA201791638A1 (ru) 2018-03-30
PE20130031A1 (es) 2013-01-28

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