Apparatus for precisely regulating the paraffin temperature in an electrically heated tissue processor
US4356385A · kind A · utility
8Cited by
5References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 1, 1981 |
| Grant date | Oct 26, 1982 |
| Priority date | — |
| Expiry date | Jun 1, 2001 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG05D23/1909
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
Apparatus for precisely regulating the paraffin temperature in an electrically heated tissue processor comprises a sensor which is detachably fastened to the tissue processor by a clamp so as to be partially immersed in the paraffin. A controller, coupled to the sensor, and coupled in series with the tissue processor heating element by a plug tap across a source of alternating current voltage, is responsive to the conduction state of the sensor and controls the delivery of power to the tissue processor heating element in accordance with the paraffin temperature as sensed by the sensor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.