Integrally formed tank sump with water resistant lid assembly
US6189717A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 14, 1998 |
| Grant date | Feb 20, 2001 |
| Priority date | — |
| Expiry date | Sep 14, 2018 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE02D29/124
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A sump has a one-piece body, comprising a hollow base member for collecting fluids leaking from a piping system, the base member having an upper portion and a lower portion. The one-piece body further comprises a hollow riser section having an upper portion defining an opening, and a lower portion, the riser lower portion extending upwardly from the base member upper portion, the riser section having sidewalls with a generally corrugated shaped cross section in an axial direction. The hollow base member has a bottom and sidewalls, each of the bottom and sidewalls having an outer surface. The base member is fiberglass encapsulated, which encapsulation comprises a fiberglass woven reinforcement pad layer disposed on the base member bottom outer surface; a chopped fiberglass material layer disposed on the sidewalls outer surface up to and including an area abutting the riser section lower portion; a polymeric coating material layer disposed on the fiberglass woven reinforcement pad layer and the chopped fiberglass material layer; and a polymeric sealant material layer disposed on a portion of the riser section lower portion and on a portion of the polymeric coating material layer, at …
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.