System for housing secondarily contained flexible piping
US5865216A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Nov 8, 1995 |
| Grant date | Feb 2, 1999 |
| Priority date | — |
| Expiry date | Nov 8, 2015 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16L9/18
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A system for housing secondarily contained flexible piping comprises a flexible conduit resistant to mechanical stresses, the conduit adapted to surround the secondarily contained flexible piping. The conduit comprises a metallic core and a thermoplastic jacket. The secondarily contained flexible piping comprises an inner supply pipe, wherein the inner pipe is comprised of a first, inner layer fabricated from nylon, a second, intermediate layer comprising a nylon reinforced wrap, and a third, outer layer comprising a polyethylene material, the nylon inner material, the nylon wrap and the polyethylene outer layer being extruded simultaneously to form the inner pipe. The secondarily contained flexible piping further comprises a flexible outer secondary containment pipe within which the inner supply pipe is carried, the outer pipe being fabricated from a fuel impervious material and having a plurality of radially projecting flanges disposed between the inner supply pipe and the outer secondary containment pipe, to provide a locking engagement of the pipes with respect to each other and to provide for a flow passage between the pipes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.