The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 26, 2010
Filed:
Jun. 28, 2002
Applicants:
Klaus Vogel, Barsbüttel, DE;
Michael Litzenberg, Geesthacht, DE;
Inventors:
Klaus Vogel, Barsbüttel, DE;
Michael Litzenberg, Geesthacht, DE;
Assignees:
Norgren AG, Balterswil, CH;
KHS Corpoplast GmbH & Co. KG, Hamburg, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16K 31/00 (2006.01);
U.S. Cl.
CPC ...
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 is made at least partially of a plastic.