Electrically heated hose employing a hose simulator for temperature control
US4725713A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | May 20, 1985 |
| Grant date | Feb 16, 1988 |
| Priority date | — |
| Expiry date | May 20, 2005 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05B3/56
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A system for electrically heating a hose of the type used to transport one or more fluid components from a remote location to a point of application includes at least one fluid conduit and an electric heating element enclosed within a thermal insulation blanket to form a hose construction having predetermined heat transfer characteristics. A remotely positioned module enclosed in a thermal insulation blanket and containing an electric heater and temperature sensor provides a hose simulator having heat transfer characteristics substantially identical to that of the hose. An electrical power drive circuit connected in parallel to the hose heating element and the module heater is controlled by a temperature control circuit responsive to the temperature sensed within the module by the temperature sensor. The temperature control circuit is further responsive to an ambient temperature sensor physically separated from the hose and module.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.