Thermostatically controlled electric fluid heating apparatus
US4356383A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Nov 20, 1979 |
| Grant date | Oct 26, 1982 |
| Priority date | — |
| Expiry date | Nov 20, 1999 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/6606
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
Heating apparatus for heating of a fluid. The heating apparatus comprises a conduit having a fluid passage therethrough for conduction of a fluid to be heated, a heating device, such as for example electrical heating plates, in heat transfer contact with a portion of the conduit for heating the fluid being conducted therethrough, and a temperature sensing device positioned in engagement with the conduit at a predetermined location along the conduit external to the conduit for sensing the temperature of the fluid to be conducted therepast. A contact member is arranged to engage the flexible conduit at the predetermined location for compressing the flexible conduit to constrict the cross sectional area of the flow passage thereat when the flow rate of the fluid is below a predetermined flow rate. Preferably, the contact member is spring biased towards the flow passage constricting position, and is movable away from such position when the flow rate exceeds a predetermined flow rate. In this manner, the fluid in the conduit is maintained in temperature sensing relationship with the temperature sensing device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.