Method of making preinsulated pipe assembly
US4031611A · kind A · utility
14Cited by
10References
8Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 15, 1975 |
| Grant date | Jun 28, 1977 |
| Priority date | — |
| Expiry date | Dec 15, 1995 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49888
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A preinsulated pipe assembly and pipeline formed from a plurality of such assemblies. Each pipe assembly includes a pipe with a heater housing mounted thereon to form a cavity along the exterior of the pipe and a preformed insulation layer for insulating the pipe and the heater housing. A connecting assembly is used to join the pipe assemblies and form a pipeline. Pull means detachably connected to a heating element facilitates placement of the heating element in the heater housing cavities, and a pulling assembly attached to the heater element permits removal of the heater element after installation of the pipeline.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.