Patent · US Expired

Method of manufacturing piston sealing strips of rotary piston machines

US4016635A · kind A · utility

1Cited by

2References

4Claims

0Family size

Assignees

Audi NSU Auto Union Aktiengesellschaft · DE
Wankel GmbH · DE

Inventors

Wulf Leitermann
Hans Zimmermann · Mönchaltorf, CH

Key dates

Filing date	Jul 15, 1975
Grant date	Apr 12, 1977
Priority date	—
Expiry date	Jul 15, 1995

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T29/49281
WIPO fieldMachine tools
WIPO sectorMechanical engineering

Abstract

A method of manufacturing arcuate sealing strips for the pistons of rotary piston machines. The running surface on one face of the strip carries a wear-resistant hard layer.

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