Temperature controller with temperature limiting sensor
US4631626A · kind A · utility
10Cited by
8References
6Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 27, 1985 |
| Grant date | Dec 23, 1986 |
| Priority date | — |
| Expiry date | Sep 27, 2005 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S323/909
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A temperature controller with a remote sensor having a high temperature cutoff with circuit means to prevent operation of the unit if tampered with to bypass a safety function. A remote sensor has a thermal fuse and diode feeding a pulsating D.C. voltage to a control circuit having a capacitor and an impedance means to which pulsating D.C. is fed. If the sensor unit is bypassed the thermal fuse in the controller burns out to render the controller inoperative.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.