Fluid handling – Systems – With flow control means for branched passages
Reexamination Certificate
2006-03-28
2006-03-28
Fox, John (Department: 3753)
Fluid handling
Systems
With flow control means for branched passages
Reexamination Certificate
active
07017609
ABSTRACT:
A gas supply unit includes fluid control devices and piping blocks so that the fluid control devices are mounted on the upper surfaces of the piping blocks and thus connected with each other, constituting a part of a gas supply line. A filter block including a filter element in a passage providing communication between the fluid control device and the piping block is connected between the fluid control device and the piping block.
REFERENCES:
patent: 6123340 (2000-09-01), Sprafka et al.
patent: 6273139 (2001-08-01), Ohmi et al.
patent: 6659131 (2003-12-01), Tsourides
CKD Corporation
Oliff & Berridg,e PLC
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