GB1188097A - Improvements in Pilot Bits for Earth Boring Augers - Google Patents
Improvements in Pilot Bits for Earth Boring AugersInfo
- Publication number
- GB1188097A GB1188097A GB44155/68A GB4415568A GB1188097A GB 1188097 A GB1188097 A GB 1188097A GB 44155/68 A GB44155/68 A GB 44155/68A GB 4415568 A GB4415568 A GB 4415568A GB 1188097 A GB1188097 A GB 1188097A
- Authority
- GB
- United Kingdom
- Prior art keywords
- bit
- auger
- earth boring
- pilot bits
- sept
- 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.)
- Expired
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
- E21B10/00—Drill bits
- E21B10/44—Bits with helical conveying portion, e.g. screw type bits; Augers with leading portion or with detachable parts
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)
- Earth Drilling (AREA)
Abstract
1,188,097. Boring earth &c. WATSON MFG. CO. 17 Sept., 1968 [19 Sept., 1967], No. 44155/68. Heading E1F. In a pilot bit for a ground auger comprising a substantially conical body 13, having helical blades 15, 17, the blades extend beyond the apex of the body to be joined by a blade portion A. The base of the bit has a depression (shown dotted in Fig. 6) which is engaged by a projection on the auger, the bit being fixed to the auger by a bolt passing through holes 51 in the bit to engage an elongated hole in the projection.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US66891567A | 1967-09-19 | 1967-09-19 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1188097A true GB1188097A (en) | 1970-04-15 |
Family
ID=24684273
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB44155/68A Expired GB1188097A (en) | 1967-09-19 | 1968-09-17 | Improvements in Pilot Bits for Earth Boring Augers |
Country Status (2)
Country | Link |
---|---|
US (1) | US3557887A (en) |
GB (1) | GB1188097A (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NL1004537C2 (en) * | 1996-11-14 | 1998-05-18 | Albert Hendrik Wissels | Drill point for augers. |
DE10057877C2 (en) * | 2000-11-22 | 2002-10-17 | Lueken Gisela | wellhead |
WO2010025500A1 (en) * | 2008-09-04 | 2010-03-11 | Taca Metro Pty Lted | Pilot bit |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3016117A (en) * | 1962-01-09 | petersen | ||
US51051A (en) * | 1865-11-21 | Improved reservoir-drill for tube-wells | ||
US757124A (en) * | 1903-06-19 | 1904-04-12 | Frederick Kampfe | Driven-well point. |
US1612062A (en) * | 1925-02-06 | 1926-12-28 | Augustus B Scott | Lock-dart bailer bottom |
US1848192A (en) * | 1927-01-29 | 1932-03-08 | William J Newman | Drilling apparatus |
US2289707A (en) * | 1941-01-31 | 1942-07-14 | Leo B Hellman | Drilling bit |
US2639122A (en) * | 1949-11-01 | 1953-05-19 | Gerald A Petersen | Pilot bit for earth augers |
US2773673A (en) * | 1954-03-04 | 1956-12-11 | Petersen Gerald Alger Monroe | Pilot bit |
US2870995A (en) * | 1954-11-15 | 1959-01-27 | Gerald A M Petersen | Drive lug for pilot bit and earth boring augers |
US2877987A (en) * | 1956-11-13 | 1959-03-17 | Gerald A M Petersen | Conversion head |
-
1967
- 1967-09-19 US US668915A patent/US3557887A/en not_active Expired - Lifetime
-
1968
- 1968-09-17 GB GB44155/68A patent/GB1188097A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
US3557887A (en) | 1971-01-26 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed [section 19, patents act 1949] | ||
PLNP | Patent lapsed through nonpayment of renewal fees |