Gasket and method for fabrication and use with corrugated pipe
US6406025B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 7, 2001 |
| Grant date | Jun 18, 2002 |
| Priority date | — |
| Expiry date | Feb 7, 2021 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16L5/10
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A resilient compressible gasket having an embedment portion, a pipe engaging portion and a intermediate “radius” portion integral with the embedment and pipe engaging portions. The gasket assumes a “pleated” configuration when in the operative position, the pipe engaging portion extending through the embedment portion, yielding a gasket which compensates for deviation of the pipe from a nominal horizontal alignment without any reduction in the water-tight seal provided by the gasket. The gasket is sized to provide for easy insertion of a corrugated pipe into the pipe engaging portion while providing an excellent water-tight seal when clamped into position about one or more annular recesses and peaks of the corrugated pipe. Another embodiment of the gasket is designed to be secured to a cored or performed opening in a cast member through the use of an expansion-type clamping assembly. The free end of the pipe engaging portion is preferably provided with a radially outwardly directed flange which greatly facilitates alignment of the pipe engaging portion with an annular recess (or an annular peak) of a corrugated pipe.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.