Squeak free seal for exhaust couplings
US4601476A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Nov 28, 1984 |
| Grant date | Jul 22, 1986 |
| Priority date | — |
| Expiry date | Nov 28, 2004 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S285/917
- WIPO fieldEnvironmental technology
- WIPO sectorChemistry
Abstract
A heat cured exhaust seal, adapted to be interposed between a pair of confronting pipes in sealing relationship therewith, is formed of wire mesh having openings between the wires thereof and a mixture of metallic fibers, non-metallic filler, a thermally stable lubricant and resin binder, which mixture surrounds the wires and substantially fills the openings in the mesh and forms the seal. The method of forming the seal includes placing a preform of wire mesh into a die cavity, forming a powder mixture of metallic fibers, non-metallic filler, a thermally stable lubricant and a resin binder, placing the powder mixture into the die cavity, pressing the wire mesh and powder mixture to the final size and shape of the seal and curing the seal at an elevated temperature.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.