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:
Feb. 05, 1991
Filed:
Apr. 25, 1989
Hans Dittrich, Karlsruhe, DE;
Kernforschungszentrum Karlsruhe G.m.b.H., Karlsruhe, DE;
Abstract
In a gas mixing apparatus for the generation of a continuous stream of a gas mixture a carrier gas line is in communication with a collector to which a carrier gas supply line and component gas supply lines are connected of which each includes a mass flow regulator and a three-way valve with an output in communication with the collector and a first inlet connected to the respective mass flow regulator and a second input in communication with the carrier gas supply line. The second inputs to the three-way valves are always open so that carrier gas is always permitted to flow through the valves for rapid response to flow changes through the valves first inlet.