Housing for a pneumatic power booster and process for its manufacture

US5297471A · kind A · utility

Assignee

• Alfred Teves GmbH · DE

Inventors

• Peter Boehm · Frankfurt am Main, DE
• Wilfried Wagner · Hamburg, DE
• Lothar Schiel · Hofheim, DE
• Manfred Rüffer · Pocking, DE
• Ralf Jakobi · Flörsheim, DE
• Kai-Michael Graichen · Langen, DE
• Lothar Mattheis · Frankfurt am Main, DE

Key dates

• Filing date: Aug 28, 1992
• Grant date: Mar 29, 1994
• Expiry date: Aug 28, 2012

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T29/49922
• WIPO field: Transport
• WIPO sector: Mechanical engineering

Abstract

A construction and fabrication process for a two piece vacuum brake power booster housing is described which eliminates the surface tensions which are caused by forming during assembly to prevent damage to a protective surface finish. Localized radially weakened zones are each formed by two opposing tongues created by circumferential and axial slots which tongues in the assembled condition of the housing engage behind an outwardly and reversely formed rim (3) of the other housing half (1).