Corrosion barrier with antibacterial protection for pipe connections
US5984370A · kind A · utility
Inventor
Key dates
| Filing date | Aug 5, 1997 |
| Grant date | Nov 16, 1999 |
| Priority date | — |
| Expiry date | Aug 5, 2017 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16L58/1009
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A corrosion resistant sleeve joining abutted ends of lined pipe where corrosive or erosive gases, fluids or slurries may flow to provide a continuous corrosion barrier between the ends of adjacent pipe liners. The sleeve is preferably a cylindrical member having sufficient length to allow disposition of a protective material, such as biocide, corrosion inhibitor, or combination thereof between the sleeve and the pipe surrounding the sleeve. The elongated cylindrical section may provide a double set of O-rings separated by a distance that would allow an annular recess to be placed between them for disposing a protective material. The protective material is preferably soluble with any fluid material that is to be transported through the pipe and blends with any fluid that permeates the outer most O-ring and comes into contact with the protective material. The protective material preferably blends with the fluid prior to penetration of the inner O-ring and thereby prevents damage to the metal pipe in the area between the adjacent liners.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.