Sealing device
US5417442A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Oct 2, 1992 |
| Grant date | May 23, 1995 |
| Priority date | — |
| Expiry date | Oct 2, 2012 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16L21/035
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A sealing device for sealing two concrete pipe end portions in relation to each other comprises a sealing surface (4) in a socket (2) of one of the pipe end portions and a sealing surface (14) on a spigot end (12) of the other pipe end portion. The spigot end is introduced into the socket and there is between the sealing surfaces formed a sealing space in which an elastic material sealing element (26) is positioned in a compressed state. A closure device (28) is positioned in the sealing space between the interior of the pipe end portions and the sealing element (26) for preventing a medium conveyed in the pipe end portions from contacting the sealing element as well as the sealing surfaces at least in a region of the sealing element.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.