http://rdf.ncbi.nlm.nih.gov/pubchem/patent/DE-2336790-A1
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_379e50fad03fb737b72543946c66b71b |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H03K17-90 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H02K29-08 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H03K17-90 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H02K29-08 |
| filingDate | 1973-07-19-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_dc86ef200e7b7cb5aedb983afc315d6e |
| publicationDate | 1975-02-06-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | DE-2336790-A1 |
| titleOfInvention | ELECTRONIC POLE CHANGER |
| abstract | The d.c. polarity refersing switch has four contacts, consisting of bismuth or germanium and situated around a circle at 90 deg. intervals. The contacts are magnetically connected by a circular yoke. A permanent magnet bar rotates inside the circle so that the presence or absence of its magnetic field alters the resistance of the contacts which are electrically connected to form a Wheatstone bridge whose resistors are the variable resistances of the four contacts. The magnet poles facing two of the contacts and its neutral axis, cutting the other two, upsets the bridge balance, thus allowing current to flow pref. in one direction. Rotating the magnet through 90 deg. reverses the direction of this preferential current. Since the switch has no mechanical contacts, contacts, contact damage due to arcing is avoided. |
| priorityDate | 1973-07-19-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 21.