Patent · US Expired

Piston with an encompassing seal

US5377580A · kind A · utility

7Cited by

6References

9Claims

0Family size

Assignee

Robert Bosch GmbH · DE

Inventors

Dieter Merklein · Ludwigsburg, DE
Harald C. Ott · Wenham, US
Barbara Schwind-Grellmann · Winnenden, DE
Heinz Siegel · Stuttgart, DE
Alexander Bareiss · Immenstadt im Allgäu, DE

Key dates

Filing date	Sep 24, 1993
Grant date	Jan 3, 1995
Priority date	—
Expiry date	Sep 24, 2013

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF16J15/32
WIPO fieldMechanical elements
WIPO sectorMechanical engineering

Abstract

In a piston with an encompassing seal, which is seated slidably in a cylindrical receiving bore of a structural part such as a housing block and which can be acted upon by pressure on at least one end, the piston is intended to have a shoulder for receiving the seal. This shoulder divides a cylindrical running face of the piston of a segment having a jacket face, and a groove is formed into the jacket face for receiving a ring that secures the seal in the axial direction and also acts as a stripper ring protecting the sealing ring.

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