| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_84d9adaa7e7ce01ce8020f5c721aba10 |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01N2035-00356
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01N2035-00148
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01N2201-08
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01N35-0099
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01N2001-007
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01N35-1004
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01N2021-6482
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01N35-1065
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01N2201-0646
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01N2035-1076
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01N2035-0405
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01N2035-1086
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01N2035-0444
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01N2035-0441
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01N2035-0443
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01N2035-0446
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01N2035-1025 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01F31-24
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01N21-6445
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B29C45-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01N33-54313
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01N35-0092
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01N35-025
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01N21-76
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01N33-5302
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01N33-542
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01N21-6452
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01J49-04
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01L3-5025 |
| classificationIPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G01N1-00 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G01N33-553
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G01N33-543
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G01N33-542
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G01N33-53
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G01N33-483
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01L3-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B29C45-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G01N21-78
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G01N21-76
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G01N21-64
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01F11-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G01F23-284
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G01F23-26
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G01F23-22
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G01N21-25
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H01J49-04
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G01N35-10
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G01N35-02
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G01N35-04
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G01N35-00 |
| filingDate |
1994-09-22-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
2008-01-15-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_a3b1c8e9a28a3495290a5596b5f55491
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_ebac2f9bdf4ddf6472487b3d8eea99d2
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_e99858449db4a4cf899a3914840680d8 |
| publicationDate |
2008-01-15-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
CA-2362531-C |
| titleOfInvention |
Means and method for liquid level sensing |
| abstract |
The invention discloses an automated liquid level sensing system for detecting the presence of liquid in a container, comprising an electrically conductive and movable probe positioned above said container; a signal source electrically connected to said probe, said signal source capable of energizing said probe thereby causing said probe to transmit said electrical signal at a given frequency; a receiving antenna and means for transferring said received electrical signal from said receiving antenna to an analyzing means; wherein analyzing said received electrical signal includes: (1) means for detecting changes in received signal amplitude, wherein said means for detecting changes in received signal amplitude includes:(a) means for multiplying said received signal by a reference signal, said reference signal having a frequency substantially equal to the frequency of the transmitted signal; and (b) a low pass filter through which is passed said multiplied received signal; and (2) means for measuring rate of change of said change in received signal amplitude; and means connected to said analyzing means for indicating that liquid has been detected. The invention further discloses a method of automatically detecting the presence of liquid in a container using the system of the invention. An automated liquid sensing system for use in a clinical analysis system having a pipettor for dispensing or aspirating liquid in a container, the pipettor being electrically conductive and moveable vertically into the container, using the automated liquid sensing system of the invention further comprising a means electrically connected to the pipettor for applying a RF signal thereto and causing the pipettor to radiate an electromagnetic field, the propagation of which changes when the pipettor contacts the surface of the liquid in the container is further disclosed. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-106053772-A |
| priorityDate |
1993-09-24-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |