Internal heating element for pipes and tubes
US6516142B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 12, 2001 |
| Grant date | Feb 4, 2003 |
| Priority date | — |
| Expiry date | Feb 12, 2021 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF24H1/102
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The heater includes a resistance heating element comprising a resistance heating wire having a pair of terminal ends connected to a pair of electrical connectors and encapsulated with a thin electrically insulating polymeric layer. The resistance heating wire is capable of maintaining a fluid initially heated by a primary heat source substantially at the desired use temperature. A first connecting body is configured to couple to the section of piping containing the fluid. The connecting body includes a fluid inlet port, a fluid outlet port, a fluid passageway defined between the fluid inlet and outlet ports, and an electrical connection port. The resistance heating element is disposed at least partially within the fluid passageway and at least a first one of the terminal ends is coupled to a respective one of the pair of electrical connectors through the electrical connection port.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.