| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_f054d4fee251f843a069995b69bb8ddb
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_5105d4457173846fbb07950a60a0d5bc
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_61f88efcda59d7062a4252ecf6886f58
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_22208a13184779550a7f5f604d1e9587 |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01N2001-2223
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01N1-24
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01N2015-0046 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01N1-2205
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01N15-0618
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01N7-10 |
| classificationIPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G01N1-24
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G01N15-00 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G01N7-10
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G01N1-22
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G01N15-06 |
| filingDate |
1998-06-26-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_97b5c3dc4292b43899c18dc00e608b59
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_dac8b942af4840013ebc62cc8918bdc2
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_a7496699515f463fa18484494b78b5cf |
| publicationDate |
1999-01-14-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
WO-9901740-A1 |
| titleOfInvention |
Dust detector tube |
| abstract |
A personal sampling method and apparatus for real time respirable dust dosimetry for dust exposure assessment is provided to aid in assuring the respiratory health of workers. An embodiment uses a low flow-rate gas sampling pump for differential pressure measurements across a glass fiber collection filter in a disposable detector tube (12) or dust detecting device coupled to the pump inlet. The dust detecting device includes an elongated tubular element (12) having the filter (30) positioned betwen proximal and distal ends of the tube (12) for trapping dust mass. A pressure transducer (16) at the proximal end (36) measures the pressure from the flow of gas. The pump draws the flow of gas through the dust detecting device from the distal end (38) towards the proximal end (36) trapping the dust mass at the filter (30). A differential pressure across the filter (30) determined using the pressure from the flow of the gas in the proximal end (36) of the tubular element measured by the pressure transducer (16) is indicative of cumulative dust mass trapped at the filter (30). |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-7485099-B2 |
| priorityDate |
1997-07-03-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |