Patent · US Expired

Light-metal piston

US4205649A · kind A · utility

3Cited by

3References

1Claims

0Family size

Assignee

Mahle GmbH · DE

Inventors

Albrecht Ostermann · Schorndorf, DE
Manfred Rohrle · Laichingen, DE
Klaus Welker · Stuttgart, DE

Key dates

Filing date	Jun 6, 1977
Grant date	Jun 3, 1980
Priority date	—
Expiry date	Jun 6, 1997

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T29/49263
WIPO fieldEngines, pumps, turbines
WIPO sectorMechanical engineering

Abstract

A light-metal piston with parts hard-eloxated to increase their resistance to heat and mechanically reinforced to the depth of the hard eloxation.

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