GB9917897D0 - The circular spade - Google Patents
The circular spadeInfo
- Publication number
- GB9917897D0 GB9917897D0 GBGB9917897.2A GB9917897A GB9917897D0 GB 9917897 D0 GB9917897 D0 GB 9917897D0 GB 9917897 A GB9917897 A GB 9917897A GB 9917897 D0 GB9917897 D0 GB 9917897D0
- Authority
- GB
- United Kingdom
- Prior art keywords
- spade
- circular
- circular spade
- 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.)
- Granted
Links
Classifications
-
- 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
- E21B7/00—Special methods or apparatus for drilling
- E21B7/003—Drilling with mechanical conveying means
-
- 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
- E21B11/00—Other drilling tools
- E21B11/005—Hand operated drilling tools
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01B—SOIL WORKING IN AGRICULTURE OR FORESTRY; PARTS, DETAILS, OR ACCESSORIES OF AGRICULTURAL MACHINES OR IMPLEMENTS, IN GENERAL
- A01B1/00—Hand tools
-
- 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
- E21B10/00—Drill bits
- E21B10/44—Bits with helical conveying portion, e.g. screw type bits; Augers with leading portion or with detachable parts
-
- 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
- E21B7/00—Special methods or apparatus for drilling
- E21B7/003—Drilling with mechanical conveying means
- E21B7/005—Drilling with mechanical conveying means with helical conveying means
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Soil Sciences (AREA)
- Environmental Sciences (AREA)
- Earth Drilling (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB9917897A GB2352606B (en) | 1999-07-29 | 1999-07-29 | The circular spade |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB9917897A GB2352606B (en) | 1999-07-29 | 1999-07-29 | The circular spade |
Publications (3)
Publication Number | Publication Date |
---|---|
GB9917897D0 true GB9917897D0 (en) | 1999-09-29 |
GB2352606A GB2352606A (en) | 2001-02-07 |
GB2352606B GB2352606B (en) | 2001-05-30 |
Family
ID=10858216
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB9917897A Expired - Fee Related GB2352606B (en) | 1999-07-29 | 1999-07-29 | The circular spade |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB2352606B (en) |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2201813A1 (en) * | 1972-10-05 | 1974-05-03 | Robin Pierre | |
US4282943A (en) * | 1979-05-23 | 1981-08-11 | Joseph Leitner | Lawn aerator |
US4456075A (en) * | 1983-02-24 | 1984-06-26 | Hostetter John L | Weeding auger with U-shaped blade |
US5441118A (en) * | 1994-01-04 | 1995-08-15 | Cruz, Jr.; Ramon M. | Weed twister |
-
1999
- 1999-07-29 GB GB9917897A patent/GB2352606B/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
GB2352606A (en) | 2001-02-07 |
GB2352606B (en) | 2001-05-30 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PCNP | Patent ceased through non-payment of renewal fee |
Effective date: 20030729 |