| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_b2de571c2a01ab9d975c53c0392ad764
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_435d9b6a50c588fd97ab6126dc65fcfa |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01B11-0625
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B41F31-045
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01N21-86
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B41F33-0063 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G01N21-86
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B41F31-04
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B41F33-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G01B11-06 |
| filingDate |
1970-11-05^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
1972-12-26^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_f672371228bdca1d24ae1f00ddaf13ff
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_a7536240c915155bb3f1c066be0ce6e4 |
| publicationDate |
1972-12-26^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
US-3707123-A |
| titleOfInvention |
Apparatus for detecting changes in the thickness of an ink film on the roller system of a printing press |
| abstract |
Apparatus for detecting the thickness of an ink film on the roller of a printing press either to indicate the film thickness and/or to control one or more ink supplies to the roller. A monitoring head includes a housing for a transparent roller which, in use, contacts a printing press roller. The housing contains a light source positioned between two photoconductive cells, one in the transparent roller and one fixed in the housing. The photoconductive cells have a selective response. Either optical filters are positioned before the photoconductive cells or a monochromatic light source is employed. The photoconductive cells are included in a bridge circuit which has variable resistors for controlling its output and sensitivity. Accurate correlation is possible between ink film thickness and the output of the bridge circuit. Systems are disclosed using multiple monitoring heads and servo-controls for controlling ink supply to single color and multicolor presses. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4570539-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-10451481-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-11370216-B1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4829898-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4508034-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4407197-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4151796-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-3981238-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/IT-UA20161497-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4207003-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-3841215-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-3930447-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2017153929-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-3835777-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-3908545-A |
| priorityDate |
1969-11-14^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |