EP 0673676 A1 19950927 - Gas blending system.
Title (en)
Gas blending system.
Title (de)
Gasmischungssystem.
Title (fr)
Système de mélange des gaz.
Publication
Application
Priority
US 21600094 A 19940322
Abstract (en)
A tracer gas line (2) and a carrier gas line (6) are used to provide a tracer gas, such as helium, and a carrier gas, such as nitrogen, for blending. A back pressure controlling regulator (1) is positioned in the tracer gas line and is controlled by a signal from the carrier gas line, so that the tracer gas pressure matches the carrier gas pressure under varying carrier gas flow and/or downstream pressure conditions. The two gas lines are piped to a common discharge manifold (4), and contain valves or orifices (3,7) adapted to maintain the same carrier and tracer gas flow proportions independent of changes in carrier flow or pressure. <IMAGE>
IPC 1-7
IPC 8 full level
B01F 23/10 (2022.01)
CPC (source: EP)
B01F 23/061 (2022.01); B01F 23/19 (2022.01); B01F 35/2113 (2022.01); B01F 35/2213 (2022.01)
Citation (search report)
- [X] GB 191027703 A 19110615 - CFCMUG [FR]
- [X] GB 743655 A 19560118 - BLACKMAN KEITH LTD, et al
- [X] GB 2202459 A 19880928 - DISTILLERS COMPANY THE
- [A] EP 0578578 A1 19940112 - SELAS CORP OF AMERICA [US]
- [A] US 3221757 A 19651207 - NEWTON JR ROBERT P
- [A] DE 4225981 A1 19940210 - LINDE AG [DE]
Designated contracting state (EPC)
ES IT
DOCDB simple family (publication)
EP 0673676 A1 19950927; BR 9501145 A 19951024; CA 2145160 A1 19950923
DOCDB simple family (application)
EP 95104134 A 19950321; BR 9501145 A 19950321; CA 2145160 A 19950321