Patent · US Active

Piston-cylinder unit with a protective sleeve

US7392736B2 · kind B2 · utility

5Cited by

1References

7Claims

0Family size

Assignee

ZF FRIEDRICHSHAFEN AG · DE

Inventors

Gerald Fenn · Pfersdorf, DE
Daehun Gwon · Gwangju, KR
Jonghyuk Lee · Seoul, KR
Taewon Kim · Rifu, JP

Key dates

Filing date	Feb 22, 2006
Grant date	Jul 1, 2008
Priority date	—
Expiry date	Jan 18, 2027

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF16F9/54
WIPO fieldMechanical elements
WIPO sectorMechanical engineering

Abstract

A piston-cylinder unit includes a piston rod guided axially in a cylinder, a support disk fixed to the piston rod, a mounting element fixed to the support disk, and a protective sleeve which can be threaded over the mounting element. The protective sleeve has an end wall with an aperture profiled to receive the mounting element therethrough as the protective sleeve is fitted to the support disk, the protective sleeve being rotatable relative to the mounting element when fitted to the support disk, the mounting element having an axial support surface which can be positioned axially above the end wall to retain the protective sleeve.

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