http://rdf.ncbi.nlm.nih.gov/pubchem/patent/KR-20200040430-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_95d75972efa1db956bf599da8b30eabb |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/E21D9-1053 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/E21D9-1013 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/E21D9-006 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/E21D9-13 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/E21D9-13 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/E21D9-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/E21D9-10 |
| filingDate | 2018-10-10^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_03a97ec0efa665e2fe0cbd2aa3afe57d http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_9aa1402c3fe8f2cb5c3bc2de2aed879c |
| publicationDate | 2020-04-20^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | KR-20200040430-A |
| titleOfInvention | Notch bit of forming notch for stress concentration, and excavation apparatus having the same |
| abstract | This is a method of changing the geometric shape of the blasting hole by forming a notch in the existing tunnel blasting hole to create a stress concentration phenomenon. The notch bit can be quickly formed within the cycle time, and the notch bit can be easily fastened to the drill rod of a dedicated drilling rig by changing the structure of the notch bit to insert an integral blade or tungsten ball button bit into the integral guide. In addition, a notch can be formed only by striking without forming a notch by conventional rotary drilling, and by providing an attachment member, a dedicated drilling rig equipped with a notch bit can be easily attached to the excavator, and It spreads around as the minimum charge is installed in the blast hole formed The digging with minimal blasting energy, and having a notch for forming a notch for, stress concentration to minimize overbreak generated bits, and this equipment is provided. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-113153331-B http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-113153331-A |
| priorityDate | 2018-10-10^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Showing number of triples: 1 to 22 of 22.