Gaskets
US7204492B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 12, 2001 |
| Grant date | Apr 17, 2007 |
| Priority date | — |
| Expiry date | Jul 7, 2022 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16L23/18
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A spirally wound gasket is described. The gasket includes a sealing strip (11) wound into a spiral and a support strip (10) wound into a spiral in such a manner that the spiral of the sealing strip is formed interposed between the coils of the supporting strip. The sealing strip comprises a resilient material, the resilient material comprising a CEV component in a proportion of at least 25% w/w of the sealing strip. The CEV component is at least partially derived from dry CEV, and the sealing strip does not include a carrier strip in one aspect. In another aspect, the CEV component is at least partially derived from dry CEV, and the sealing strip has a moisture level of between 3–20% w/w of the sealing strip resilient material during winding into the said gasket. A method of producing a sealing strip is also described.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.