Patent · US Expired

Flat sealing material made of a soft substance, particularly for the production of gaskets that are to be subjected to high stresses

US4748075A · kind A · utility

22Cited by

8References

14Claims

0Family size

Assignees

Goetze GmbH · DE
Frenzelit Asbestwerke GmbH & Co. KG · DE

Inventors

Horst Beyer · Basel, CH
Hans-Rainer Zerfass · Burscheid, DE
Heribert Bechen · Cologne, DE
Hans Haack · Bad Berneck im Fichtelgebirge, DE
Franz Kutnar · Bayreuth, DE

Key dates

Filing date	Aug 30, 1983
Grant date	May 31, 1988
Priority date	—
Expiry date	Aug 30, 2003

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T442/699
WIPO fieldTextile and paper machines
WIPO sectorMechanical engineering

Abstract

A soft gasket material comprising an asbestos-free fiber material containing fibers and an organic binder, the soft gasket material being comprised of a fiber sheet containing at least three different intermixed types of fibers, namely (a) natural organic fibers, (b) synthetic organic fibers, and (c) at least one fiber type selected from mineral fibers and metal fibers, and being additionally comprised of powdered to finely fibrous fillers and at least one organic binder.

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