| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_234d1b32e0863627010581cf37e6a92d |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C11D7-08
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C11D11-0041
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C11D7-265
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/E03B7-006
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C11D7-3218
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B08B9-032
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C23G1-02 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B08B9-032
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B08B9-027
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B08B9-02
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C11D11-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C23G1-08
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C23G1-02
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C11D7-32
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C11D7-26
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C11D7-08
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/E03B7-09 |
| filingDate |
1994-03-22-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
2000-01-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_6c4b3563ef0ded851847e5827c52ecaf
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_df0a053063a0159a9c38f0cb6b680087 |
| publicationDate |
2000-01-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
CA-2157916-C |
| titleOfInvention |
Method of cleaning and maintaining potable water distribution pipe systems |
| abstract |
A method of cleaning and maintaining potable water distribution system which have reduced flow due to an increase of water scale deposits, sediment, and the like on the inside surface of the pipe is disclosed. An aqueous acidic cleaning solution (12) is introduced and circulated through the pipe (25) to be treated for a sufficient time to dissolve and loosen the scale and sediment, and the spent solution containing dissolved or suspended scale and sediment is flushed from the pipe (25) to provide a cleaned pipe with improved water flow. It is also desirable to flush the water distribution pipe system with high pressure water after the treatment to remove loosened scale and sediment that was not removed during the circulation and flushing of the treating solution (12). |
| priorityDate |
1993-03-23-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |