ZA721308B - Rotary-impact tools - Google Patents
Rotary-impact toolsInfo
- Publication number
- ZA721308B ZA721308B ZA721308A ZA721308A ZA721308B ZA 721308 B ZA721308 B ZA 721308B ZA 721308 A ZA721308 A ZA 721308A ZA 721308 A ZA721308 A ZA 721308A ZA 721308 B ZA721308 B ZA 721308B
- Authority
- ZA
- South Africa
- Prior art keywords
- rotary
- impact tools
- tools
- impact
- Prior art date
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25D—PERCUSSIVE TOOLS
- B25D9/00—Portable percussive tools with fluid-pressure drive, i.e. driven directly by fluids, e.g. having several percussive tool bits operated simultaneously
- B25D9/14—Control devices for the reciprocating piston
- B25D9/16—Valve arrangements therefor
- B25D9/22—Valve arrangements therefor involving a rotary-type slide valve
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25D—PERCUSSIVE TOOLS
- B25D9/00—Portable percussive tools with fluid-pressure drive, i.e. driven directly by fluids, e.g. having several percussive tool bits operated simultaneously
- B25D9/06—Means for driving the impulse member
- B25D9/12—Means for driving the impulse member comprising a built-in liquid motor, i.e. the tool being driven by hydraulic pressure
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B6/00—Drives for drilling with combined rotary and percussive action
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Mechanical Engineering (AREA)
- Environmental & Geological Engineering (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Percussive Tools And Related Accessories (AREA)
- Details Of Spanners, Wrenches, And Screw Drivers And Accessories (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH380771A CH532454A (fr) | 1971-03-16 | 1971-03-16 | Outil pneumatique à percussion et rotation |
Publications (1)
Publication Number | Publication Date |
---|---|
ZA721308B true ZA721308B (en) | 1972-11-29 |
Family
ID=4263871
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ZA721308A ZA721308B (en) | 1971-03-16 | 1972-02-28 | Rotary-impact tools |
Country Status (13)
Country | Link |
---|---|
US (1) | US3791461A (es) |
JP (1) | JPS5441155B1 (es) |
AR (1) | AR197955A1 (es) |
BE (1) | BE780614A (es) |
BR (1) | BR7201439D0 (es) |
CA (1) | CA951603A (es) |
CH (1) | CH532454A (es) |
DE (1) | DE2212217A1 (es) |
ES (1) | ES400768A1 (es) |
FR (1) | FR2129498A5 (es) |
GB (1) | GB1381545A (es) |
IT (1) | IT950031B (es) |
ZA (1) | ZA721308B (es) |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
ZA803409B (en) * | 1979-06-18 | 1981-05-27 | Kango Electric Hammers Ltd | Hammer drill |
US4336847A (en) * | 1980-06-27 | 1982-06-29 | Hitachi Koki Company, Limited | Percussion drill |
US4442906A (en) * | 1980-11-18 | 1984-04-17 | Black & Decker Inc. | Percussive drills |
JPH01274908A (ja) * | 1988-04-25 | 1989-11-02 | Matsushita Electric Works Ltd | ハンマードリル |
IL105743A0 (en) * | 1992-06-11 | 1993-09-22 | Dov Shilkrut | Penetrating tool system |
DE19545260A1 (de) * | 1995-11-24 | 1997-05-28 | Black & Decker Inc | Bohrhammer |
GB2435442A (en) * | 2006-02-24 | 2007-08-29 | Black & Decker Inc | Powered hammer with helically shaped vent channel |
EP3670095A1 (de) * | 2018-12-20 | 2020-06-24 | Hilti Aktiengesellschaft | Handwerkzeugmaschine |
US11185969B2 (en) * | 2019-10-08 | 2021-11-30 | Chih-Kuan Hsieh | Pneumatic tool having movable air tube |
CN116927662B (zh) * | 2023-08-28 | 2024-07-23 | 中煤科工集团重庆研究院有限公司 | 煤矿自动化定向钻机 |
CN116905958B (zh) * | 2023-08-28 | 2024-07-23 | 中煤科工集团重庆研究院有限公司 | 定向钻机动力头 |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1703841A (en) * | 1920-01-09 | 1929-02-26 | Sullivan Machinery Co | Percussive tool |
US1663403A (en) * | 1920-02-24 | 1928-03-20 | George H Gilman | Drilling machine |
US3074381A (en) * | 1961-07-12 | 1963-01-22 | Joy Mfg Co | Rock drill rotation mechanism |
US3403738A (en) * | 1966-11-01 | 1968-10-01 | Aro Corp | Drill/scredriver with impact mechanism |
-
1971
- 1971-03-16 CH CH380771A patent/CH532454A/fr not_active IP Right Cessation
-
1972
- 1972-02-28 ZA ZA721308A patent/ZA721308B/xx unknown
- 1972-03-08 FR FR7207974A patent/FR2129498A5/fr not_active Expired
- 1972-03-09 IT IT21637/72A patent/IT950031B/it active
- 1972-03-10 GB GB1121072A patent/GB1381545A/en not_active Expired
- 1972-03-13 BE BE780614A patent/BE780614A/xx unknown
- 1972-03-13 US US00233915A patent/US3791461A/en not_active Expired - Lifetime
- 1972-03-13 CA CA136,997,A patent/CA951603A/en not_active Expired
- 1972-03-14 ES ES400768A patent/ES400768A1/es not_active Expired
- 1972-03-14 DE DE19722212217 patent/DE2212217A1/de active Pending
- 1972-03-14 BR BR001439/72A patent/BR7201439D0/pt unknown
- 1972-03-15 JP JP2650472A patent/JPS5441155B1/ja active Pending
- 1972-03-16 AR AR240982A patent/AR197955A1/es active
Also Published As
Publication number | Publication date |
---|---|
JPS5441155B1 (es) | 1979-12-06 |
AR197955A1 (es) | 1974-05-24 |
FR2129498A5 (es) | 1972-10-27 |
BR7201439D0 (pt) | 1973-08-09 |
ES400768A1 (es) | 1975-01-16 |
DE2212217A1 (de) | 1972-09-28 |
CH532454A (fr) | 1973-01-15 |
IT950031B (it) | 1973-06-20 |
US3791461A (en) | 1974-02-12 |
GB1381545A (en) | 1975-01-22 |
CA951603A (en) | 1974-07-23 |
BE780614A (fr) | 1972-07-03 |
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