DE212969C - - Google Patents
Info
- Publication number
- DE212969C DE212969C DENDAT212969D DE212969DA DE212969C DE 212969 C DE212969 C DE 212969C DE NDAT212969 D DENDAT212969 D DE NDAT212969D DE 212969D A DE212969D A DE 212969DA DE 212969 C DE212969 C DE 212969C
- Authority
- DE
- Germany
- Prior art keywords
- valve
- reversing valve
- compressed air
- compressed
- air
- Prior art date
- Legal status (The legal status 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 status listed.)
- Active
Links
- 238000009527 percussion Methods 0.000 claims description 4
- 230000002441 reversible Effects 0.000 claims 1
- 238000005553 drilling Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
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
- B25D9/18—Valve arrangements therefor involving a piston-type slide valve
Landscapes
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Earth Drilling (AREA)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE212969C true DE212969C (zh) |
Family
ID=474666
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DENDAT212969D Active DE212969C (zh) |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE212969C (zh) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10584183B2 (en) | 2015-01-29 | 2020-03-10 | Gelesis, Llc | Method for producing hydrogels coupling high elastic modulus and absorbance |
| US10953038B2 (en) | 2014-06-20 | 2021-03-23 | Gelesis Llc | Methods for treating overweight or obesity |
| US11130823B2 (en) | 2011-06-07 | 2021-09-28 | Gelesis Llc | Method for producing hydrogels |
-
0
- DE DENDAT212969D patent/DE212969C/de active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11130823B2 (en) | 2011-06-07 | 2021-09-28 | Gelesis Llc | Method for producing hydrogels |
| US10953038B2 (en) | 2014-06-20 | 2021-03-23 | Gelesis Llc | Methods for treating overweight or obesity |
| US11628184B2 (en) | 2014-06-20 | 2023-04-18 | Gelesis, Llc | Methods for treating overweight or obesity |
| US10584183B2 (en) | 2015-01-29 | 2020-03-10 | Gelesis, Llc | Method for producing hydrogels coupling high elastic modulus and absorbance |
| US11130824B2 (en) | 2015-01-29 | 2021-09-28 | Gelesis Llc | Method for producing hydrogels coupling high elastic modulus and absorbance |
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