http://rdf.ncbi.nlm.nih.gov/pubchem/patent/GB-2358653-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_43f59a6e9186ce503e03c23b934a2931 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/E21B10-08 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/E21B7-064 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/E21B7-06 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/E21B7-08 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/E21B10-08 |
| filingDate | 2001-01-24-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_6e4d69b60cadc507cf7554dd8d827736 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_5717696ff88746506b220c5e870064ec |
| publicationDate | 2001-08-01-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | GB-2358653-A |
| titleOfInvention | Bit for directional drilling |
| abstract | A drill bit <B>10</B> for directional drilling includes a cylindrical housing <B>11</B> having means at the rear end <B>15</B> for mounting the bit on a trailing component of a drill head, and passages for ejection of drilling fluid into a borehole. A first axle <B>22</B> is mounted to extend forwardly from a front end of the housing <B>11</B>, and a first roller <B>12</B> is rotatably mounted on the first axle <B>22</B>. The first roller <B>12</B> has cutting projections such as carbide studs <B>23</B> thereon and extends outside of the outer diameter of the housing <B>11</B> by a distance which defines the size of the borehole when the drill bit is rotated over 360 degrees. A second axle is mounted to extend from the front end of the housing and a second roller <B>14</B> is rotatably mounted on the second axle at a position offset from the first axle <B>22</B>. The second roller <B>14</B> extends slightly outside of the outer diameter of the housing <B>11</B>, but by a distance less than the distance the first roller <B>12</B> extends outside of the housing. The second roller <B>14</B> is configured to provide a reaction surface for the first roller <B>12</B> as the first roller bores the borehole with the cutting projections. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/GB-2428713-A |
| priorityDate | 2000-01-28-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
| Predicate | Subject |
|---|---|
| isDiscussedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/substance/SID408976986 http://rdf.ncbi.nlm.nih.gov/pubchem/compound/CID4496 |
Total number of triples: 18.