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:
Sep. 10, 2002
Filed:
Mar. 26, 2001
Udo Gellert, Bellheim, DE;
Friedhelm Mueller, Linkenheim-Hochstetten, DE;
Arno Steckenborn, Berlin, DE;
Siemens Aktiengesellschaft, Munich, DE;
Abstract
To switch gas flows between gas sources and gas sinks, a gas flow switching device includes gas passages, which communicate with one another and which have connecting points for the gas sources and the gas sinks. Furthermore, the gas flow switching device has a device for setting different pressures. To simplify the construction of the gas flow switching device and to achieve precisely defined pressure and flow conditions without the need for calibration, the gas flow switching device has two plates ( ), which are positioned on top of one another and joined together. The two plates ( ) have congruent channels ( ) on their respective sides that face one another. These channels ( ) have semicircular cross sections and form gas passages ( to ). In addition, at their lateral exit points from the plates ( ), the channels ( ) form connecting points ( to ).
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile