WO2016207868A4 - An inflatable rock bolt - Google Patents
An inflatable rock bolt Download PDFInfo
- Publication number
- WO2016207868A4 WO2016207868A4 PCT/IB2016/053817 IB2016053817W WO2016207868A4 WO 2016207868 A4 WO2016207868 A4 WO 2016207868A4 IB 2016053817 W IB2016053817 W IB 2016053817W WO 2016207868 A4 WO2016207868 A4 WO 2016207868A4
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- pipe
- cap
- rock bolt
- skirt
- welded
- Prior art date
Links
- 239000011435 rock Substances 0.000 title claims abstract 17
- 238000000034 method Methods 0.000 claims abstract 7
- 238000007789 sealing Methods 0.000 claims abstract 4
- 230000000295 complement effect Effects 0.000 claims 2
- 238000004519 manufacturing process Methods 0.000 claims 2
- 238000003466 welding Methods 0.000 claims 2
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK 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
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Pipe Accessories (AREA)
- Earth Drilling (AREA)
Abstract
The invention relates to a rock bolt (1A) comprising a pipe (12) with a cap (20) welded in sealing engagement over an open end of the pipe (12). The cap (20) has a substantially cylindrical skirt (22) welded to the end of the pipe (12) in a pre-formed tabular condition. The cap (20) also includes a substantially domed cover section with an end portion that is elongate along a line (y) that is transverse to a folding line (x) about which a channel (115) is formed along a length of the pipe (12) and through the cap (20). The invention extends to associated methods of forming a rock bolt (1A).
Claims
1 . An inflatable rock bolt having a sealed tubular body comprising a pipe with at least one cap welded in sealing engagement over at least one end of the pipe and formed with a channel extending along a length of the pipe and through the cap.
2. A rock bolt as claimed in claim 1 in which the cap includes a skirt that is a close fit to a wall of the pipe.
3. A rock bolt as claimed in claim 2 in which the skirt is substantially circular and welded to the pipe in a pre-formed tubular condition.
4. A rock bolt as claimed in claim 3 in which the skirt is substantially cylindrical.
5. A rock bolt as claimed in claim 4 in which the skirt fits closely to an inner surface of the wall of the pipe.
6. A rock bolt as claimed in claim 1 or claim 2 in which the cap includes a cover section that extends away from a line along which the cap is welded to the pipe.
7. A rock bolt as claimed in claim 6 in which the cover section is substantially domed.
8. A rock bolt as claimed in claim 6 in which the cover section has an end portion that is elongate along a line that is transverse to a folding line about which the channel of the rock bolt is formed.
9. A rock bolt as claimed in claim 6 in which the cover section protrudes from the end of the pipe.
10. A rock bolt as claimed in claim 6 in which the cap includes a cover section that extends into the pipe.
1 1 . A rock bolt as claimed in claim 1 in which the pipe is formed with a channel and the cap provided with a complementary shape welded to the end of the pipe having a channel form.
12. A method of making an inflatable rock bolt with a sealed tubular body which includes the steps of providing a length of pre-formed pipe with at least one open end, welding a cap to the open end thereby sealing the open end, and thereafter deforming the pipe and the cap into a folded form to provide a channel that extends along the pipe and through the cap.
13. A method as claimed in claim 12 in which the cap includes a skirt and a dome-shaped cover section and the cap is welded to the pre-formed pipe with the skirt located in overlapping engagement with the pipe.
14. A method as claimed in claim 13 in which the skirt is located inside the pipe and the open end of the pipe welded to the cap.
15. A method as claimed in claim 13 in which the skirt is located around the pipe and an edge of the cap provided on the skirt is welded to a wall of the pipe adjacent to the open end of the pipe.
16. A method of making an inflatable rock bolt with a sealed tubular body which includes the steps of providing a length of pipe having an open end, forming the pipe with a longitudinal channel, providing a cap with a shape complementary to a channel form imparted to a wall of the pipe, and welding the cap over the open end thereby sealing the open end.
17. A method as claimed in claim 16 in which the cap includes a skirt provided as a close fit to the channel form imparted to the wall of the pipe.
18. A method as claimed in claim 17 in which the skirt is located inside the pipe and the open end of the pipe welded to the cap.
19. A method as claimed in claim 17 in which the skirt is located around the pipe and an edge of the cap provided on the skirt is welded to the wall of the pipe adjacent to the open end of the pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ZA2017/08603A ZA201708603B (en) | 2015-06-25 | 2017-12-18 | An inflatable rock bolt |
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ZA2015/04586 | 2015-06-25 | ||
| ZA201504586 | 2015-06-25 | ||
| ZA2015/05772 | 2015-08-12 | ||
| ZA201505772 | 2015-08-12 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| WO2016207868A1 WO2016207868A1 (en) | 2016-12-29 |
| WO2016207868A4 true WO2016207868A4 (en) | 2017-03-09 |
Family
ID=57584833
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/IB2016/053817 WO2016207868A1 (en) | 2015-06-25 | 2016-06-27 | An inflatable rock bolt |
Country Status (2)
| Country | Link |
|---|---|
| WO (1) | WO2016207868A1 (en) |
| ZA (1) | ZA201708603B (en) |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4954017A (en) * | 1980-11-10 | 1990-09-04 | The Curators Of The University Of Missouri | Expansion bolt and mine roof reinforcement |
| DE68927497T2 (en) * | 1988-10-10 | 1997-04-03 | Hendrik Hermanus G Witzand | STABILIZER FOR ROCKS |
| SE514084C2 (en) * | 1999-04-21 | 2000-12-18 | Gurlita Maskin Ab | Device and method for reinforcing and sealing rock wall including an expander for anchoring |
| US9062547B2 (en) * | 2010-06-04 | 2015-06-23 | Fci Holdings Delaware, Inc. | Expandable bolt with shielded tip |
-
2016
- 2016-06-27 WO PCT/IB2016/053817 patent/WO2016207868A1/en active Application Filing
-
2017
- 2017-12-18 ZA ZA2017/08603A patent/ZA201708603B/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| WO2016207868A1 (en) | 2016-12-29 |
| ZA201708603B (en) | 2022-08-31 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| ZA202103869B (en) | A cap for a container, combination of a cap and a neck of the container and its production method | |
| MX2017005034A (en) | Perforating cap, particularly for a flexible tube. | |
| WO2017053228A8 (en) | Pouch assembly having a plug | |
| RU2013120131A (en) | RING BARRIER | |
| PH12016501566A1 (en) | Container with spout and manufacturing method therefor | |
| MX2017000127A (en) | Pouring closure for the spout of a canister or any container for controlled multi-side pouring. | |
| MX2018010557A (en) | Packaging sleeve, packaging and method for producing a packaging. | |
| MX355911B (en) | Method for forming a welded seal. | |
| MX2016005892A (en) | Tubular vehicle roof pillar reinforcement. | |
| MX2018001444A (en) | Downhole completion system sealing against the cap layer. | |
| WO2018083674A3 (en) | Steering tool | |
| MX2018003812A (en) | Stabilizer link for automobile suspensions. | |
| MX361909B (en) | Tie rod arms and steering arms with integrated grease seal caps. | |
| WO2016123680A8 (en) | Cylindrical foam body, use thereof and method for producing this | |
| CA3090466A1 (en) | Quasi-cylindrical cargo container and construction | |
| MX2017011221A (en) | Header for a heat exchanger, and method of making the same. | |
| PT3737620T (en) | Sealed single-dose break-open package and relative production method | |
| MX2017003686A (en) | Vehicle bumper assembly. | |
| MX349490B (en) | Funnel part and method for manufacturing packaging container using funnel part. | |
| WO2017003869A3 (en) | Drainage system with o-ring | |
| SA521430676B1 (en) | Enhanced Welded Pipe, Threaded Connections, and Methods for Achieving the same | |
| WO2016207868A4 (en) | An inflatable rock bolt | |
| US20180370480A1 (en) | High-Pressure gas cylinder | |
| WO2016079248A3 (en) | A beverage container assembly for holding a beverage | |
| MX2021002493A (en) | A method and an apparatus for manufacturing a storage bag, and a storage bag. |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 16813837 Country of ref document: EP Kind code of ref document: A1 |
|
| NENP | Non-entry into the national phase |
Ref country code: DE |
|
| 122 | Ep: pct application non-entry in european phase |
Ref document number: 16813837 Country of ref document: EP Kind code of ref document: A1 |
|
| 32PN | Ep: public notification in the ep bulletin as address of the adressee cannot be established |
Free format text: NOTING OF LOSS OF RIGHTS PURSUANT TO RULE 112(1) EPC (EPO FORM 1205A DATED 16/07/2018) |