Apparatus for coating the internal surfaces of tubular structures
US5038708A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jan 22, 1990 |
| Grant date | Aug 13, 1991 |
| Priority date | — |
| Expiry date | Jan 22, 2010 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S118/10
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Apparatus designed to coat the internal surfaces of tubular structures, and particularly for coating small diameter tubular structures having porous walls with a controlled coating material which may be a polymer, for example. The arrangement includes structure for rotating the tube to be coated simultaneously with structure for moving a coating applicator apparatus longitudinally through the tube for imparting an evenly dispersed coating throughout the longitudinally extent thereof. The arrangement is such that the apparatus may, selectively, impart a water or other solvent spray against, the already formed coating for extraction of a solvent from the coating. The coating characteristics (i.e., uniformity, thickness and pattern) are controlled by the use of a sintered metal and/or porous applicator, together with a controlled pressurized source of coating material.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.