Patent · US Expired

Device for pneumatic control

US6695280B2 · kind B2 · utility

3Cited by

5References

26Claims

0Family size

Assignee

SIG Corpoplast GmbH & Co. KG. · DE

Inventors

Michael Litzenberg · Geesthacht, DE
Klaus Vogel · Gondelsheim, DE

Key dates

Filing date	Jun 28, 2002
Grant date	Feb 24, 2004
Priority date	—
Expiry date	Jun 28, 2022

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB29C2049/7832
WIPO fieldOther special machines
WIPO sectorMechanical engineering

Abstract

A device used for pneumatic control, includes a control piston carried in a cylinder. The control piston is mounted so as to be movable in the direction of a longitudinal piston axis, and a primary flow path that can be closed by the control pressure passes through the cylinder. The control piston is provided with a control surface that faces a control chamber of the cylinder and that is designed to transmit a control force to the control piston. The control piston includes a piston shank whose cross-sectional area is dimensioned so as to be essentially equal to a cross-sectional area of a flow orifice of the primary flow path that can be closed by the control piston and that faces an interior cylinder chamber.

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