Patent · US Expired

Impregnated soft, flat gasket and manufacturing method

US4656085A · kind A · utility

4Cited by

6References

17Claims

0Family size

Assignee

Goetze GmbH · DE

Inventors

Heribert Bechen · Cologne, DE
Franz-Josef Giesen · Rommerskirchen, DE
Klaus Lonne · Burscheid, DE
Klaus-Peter Majewski · Burscheid, DE

Key dates

Filing date	Aug 23, 1985
Grant date	Apr 7, 1987
Priority date	—
Expiry date	Aug 23, 2005

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T442/2352
WIPO fieldMechanical elements
WIPO sectorMechanical engineering

Abstract

An impregnated soft, flat sealing gasket made by a process including the consecutive steps of preparing a gasket material selected from the group consisting of organic fibers, inorganic fibers, synthetic fibers and mixtures thereof and a binder; forming a fiber mat from the gasket material; impregnating the fiber mat with a cross-linkable impregnating agent and at least partly cross-linking the impregnating agent in the fiber mat; and adding to the fiber material, in a fine distribution therein, a duromer synthetic resin prior to the impregnating step and as early as simultaneously with the preparing step.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.