FI752462A - - Google Patents
Info
- Publication number
- FI752462A FI752462A FI752462A FI752462A FI752462A FI 752462 A FI752462 A FI 752462A FI 752462 A FI752462 A FI 752462A FI 752462 A FI752462 A FI 752462A FI 752462 A FI752462 A FI 752462A
- Authority
- FI
- Finland
Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D15/00—Props; Chocks, e.g. made of flexible containers filled with backfilling material
- E21D15/14—Telescopic props
- E21D15/16—Telescopic props with parts held together by positive means, with or without relative sliding movement when the prop is subject to excessive pressure
- E21D15/18—Telescopic props with parts held together by positive means, with or without relative sliding movement when the prop is subject to excessive pressure with one part resting on a supporting medium, e.g. rubber, sand, bitumen, lead, located in the other part, with or without expulsion or displacement of the medium upon excessive pressure
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Geochemistry & Mineralogy (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mechanical Engineering (AREA)
- Geology (AREA)
- Lining And Supports For Tunnels (AREA)
- Clamps And Clips (AREA)
- Pallets (AREA)
- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
- Forging (AREA)
- Steroid Compounds (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ZA7405649 | 1974-09-05 | ||
| ZA00745649A ZA745649B (en) | 1974-09-05 | 1974-09-05 | Compressible mine support |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| FI752462A true FI752462A (US08118993-20120221-C00002.png) | 1976-03-06 |
| FI65307B FI65307B (fi) | 1983-12-30 |
| FI65307C FI65307C (fi) | 1984-04-10 |
Family
ID=25568113
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FI752462A FI65307C (fi) | 1974-09-05 | 1975-09-02 | Komprimerbar gruvstoetta |
Country Status (14)
Families Citing this family (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4281487A (en) * | 1979-08-06 | 1981-08-04 | Koller Karl S | Energy absorbing load carrying strut and method of providing such a strut capable of withstanding cyclical loads exceeding its yield strength |
| GB2080364A (en) * | 1980-07-22 | 1982-02-03 | Hunt Leuchars & Hepburn Ltd | Mine support prop |
| WO1982004455A1 (en) * | 1981-06-19 | 1982-12-23 | Karl S Koller | Energy absorbing load carrying strut and method of providing such a strut capable of withstanding cyclical loads exceeding its yield strength |
| US4915540A (en) * | 1989-06-05 | 1990-04-10 | Jack Kennedy Metal Products And Buildings, Inc. | Contractible mine stopping and contractible block member for use therein |
| USRE34220E (en) * | 1989-06-05 | 1993-04-13 | Jack Kennedy Metal Products And Buildings, Inc. | Contractible mine stopping and contractible block member for use therein |
| DE4224852C2 (de) * | 1992-07-28 | 1997-06-12 | Langerbein Scharf Gmbh & Co Kg | Rohrstütze, insbesondere für den untertägigen Berg- und Tunnelbau |
| ZA974419B (en) * | 1996-05-22 | 1998-08-24 | H L & H Timber Prod | Mine props |
| US6129483A (en) * | 1999-01-26 | 2000-10-10 | Rag American Coal Company | Prefabricated metal overcast having a crushable lower section |
| US6499916B2 (en) | 1999-04-14 | 2002-12-31 | American Commercial Inc. | Compressible support column |
| GB2348895A (en) * | 1999-04-14 | 2000-10-18 | James Eric Marianski | Compressible roof support |
| US6655877B2 (en) | 2002-04-16 | 2003-12-02 | W. David Calhoun | Yielding column |
| AU2003291212B2 (en) * | 2002-11-08 | 2009-01-22 | Aveng (Africa) Limited | Mine support |
| US6910834B2 (en) * | 2003-05-27 | 2005-06-28 | Burrell Mining Products, Inc. | Mine prop |
| US7232103B2 (en) * | 2004-10-27 | 2007-06-19 | Efficient Mining Systems Llc | Load-bearing pressurized liquid column |
| US20170130580A1 (en) * | 2012-08-30 | 2017-05-11 | Burrell Mining Products, Inc. | Telescopic mine roof support |
| US8851805B2 (en) | 2012-08-30 | 2014-10-07 | Burrell Mining Products, Inc. | Telescopic mine roof support |
| US9611738B2 (en) | 2014-08-27 | 2017-04-04 | Burrell Mining Products, Inc. | Ventilated mine roof support |
| US9903203B2 (en) | 2014-08-27 | 2018-02-27 | Burrell Mining Products, Inc. | Ventilated mine roof support |
| WO2018017948A1 (en) * | 2016-07-21 | 2018-01-25 | Burrell Mining Products, Inc. | Telescopic mine roof support |
Family Cites Families (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE604346C (US08118993-20120221-C00002.png) * | ||||
| BE459213A (US08118993-20120221-C00002.png) * | ||||
| DE569550C (de) * | 1933-02-04 | F W Moll Soehne | Walzprofil mit muldenartigen Vertiefungen | |
| BE441565A (US08118993-20120221-C00002.png) * | ||||
| GB191116735A (en) * | 1911-07-20 | 1912-04-04 | Wilhelm Deutsch | Improvements in Mining Props. |
| GB191308097A (en) * | 1913-04-07 | 1914-02-19 | Mavor & Coulson Ltd | Improvements in or connected with Props and the like, particularly adapted for use in Mines. |
| US1752101A (en) * | 1926-12-22 | 1930-03-25 | Meutsch Heinrich | Mining prop |
| GB319091A (en) * | 1928-07-09 | 1929-09-19 | Frank Stuart Atkinson | Pit and like props and shores |
| GB552833A (en) * | 1942-03-20 | 1943-04-27 | William Owen Jones | Improvements in and relating to pit props |
| DE826811C (de) * | 1950-01-14 | 1952-01-07 | Carl Ballhausen | Vorrichtung zur Kraftuebertragung zwischen zwei gegeneinander verschiebbaren Maschinenelementen |
| GB1016292A (en) * | 1963-05-15 | 1966-01-12 | Stewarts & Lloyds Ltd | A yielding strut |
| FR1453017A (fr) * | 1965-11-04 | 1966-04-15 | étançon déformable pour exploitations minières | |
| US3454397A (en) * | 1967-01-30 | 1969-07-08 | Honda Gijutsu Kenkyusho Kk | Steering column for a motor vehicle |
-
1974
- 1974-09-05 ZA ZA00745649A patent/ZA745649B/xx unknown
-
1975
- 1975-09-02 SE SE7509721A patent/SE415503B/xx not_active IP Right Cessation
- 1975-09-02 FI FI752462A patent/FI65307C/fi not_active IP Right Cessation
- 1975-09-02 GB GB36173/75A patent/GB1502898A/en not_active Expired
- 1975-09-03 US US05/609,951 patent/US4052029A/en not_active Expired - Lifetime
- 1975-09-03 DE DE2539208A patent/DE2539208C2/de not_active Expired
- 1975-09-04 AU AU84564/75A patent/AU8456475A/en not_active Expired
- 1975-09-04 FR FR7527121A patent/FR2284024A1/fr active Granted
- 1975-09-04 CA CA235,122A patent/CA1027098A/en not_active Expired
- 1975-09-04 BR BR7505691*A patent/BR7505691A/pt unknown
- 1975-09-04 AT AT683175A patent/AT341979B/de active
- 1975-09-05 ZM ZM131/75A patent/ZM13175A1/xx unknown
- 1975-09-05 BE BE159791A patent/BE833130A/xx not_active IP Right Cessation
- 1975-09-05 JP JP50107927A patent/JPS5925080B2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5925080B2 (ja) | 1984-06-14 |
| FI65307C (fi) | 1984-04-10 |
| ZA745649B (en) | 1975-12-31 |
| DE2539208A1 (de) | 1976-03-18 |
| ATA683175A (de) | 1977-07-15 |
| AT341979B (de) | 1978-03-10 |
| BE833130A (fr) | 1975-12-31 |
| JPS5154805A (US08118993-20120221-C00002.png) | 1976-05-14 |
| ZM13175A1 (en) | 1976-11-22 |
| BR7505691A (pt) | 1976-08-03 |
| SE7509721L (sv) | 1976-03-08 |
| FR2284024A1 (fr) | 1976-04-02 |
| CA1027098A (en) | 1978-02-28 |
| DE2539208C2 (de) | 1984-11-08 |
| FI65307B (fi) | 1983-12-30 |
| SE415503B (sv) | 1980-10-06 |
| GB1502898A (en) | 1978-03-08 |
| FR2284024B1 (US08118993-20120221-C00002.png) | 1982-07-16 |
| AU8456475A (en) | 1977-03-10 |
| US4052029A (en) | 1977-10-04 |
Similar Documents
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MM | Patent lapsed |
Owner name: MINE SUPPORT SYSTEMS (HOLDINGS) PROPRIET |