Fluid handling – Processes – Involving pressure control
Reexamination Certificate
2005-10-11
2005-10-11
Chambers, A. Michael (Department: 3753)
Fluid handling
Processes
Involving pressure control
C137S334000, C137S340000, C137S487500, C062S053200
Reexamination Certificate
active
06953045
ABSTRACT:
The present invention includes apparatus for linking a high-pressure gas source to equipment, so that the pressure can be reduced while maximum flow can be maintained. In one embodiment, the apparatus includes a motor valve, a control valve, a buffer tank, and an outlet regulator along a gas flow path. Controlling devices are associated with the motor valve and the control valve, and such devices respond pneumatically to pressure in the gas flow path to open or close those valves. The buffer tank operates provides sufficient volume associated with the flow path for stable sensing of pressure in the flow path, and to provide a medium for heat exchange resulting from the reduction in pressure. The apparatus may be mounted in a mobile carrier. In another embodiment, the apparatus includes a motor valve, a control valve, a line heater and an outlet regulator along a gas flow path. Controlling devices are associated with the motor valve and the control valve, and such devices respond pneumatically to pressure in the gas flow path to open or close those valves. The line heater provides a medium for heat exchange resulting from the reduction in pressure and to provide a lengthened gas flow path for stable sensing of pressure in the flow path. The apparatus may be mounted in a mobile carrier.
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Chambers A. Michael
Woodard Emhardt Moriarty McNett & Henry LLP
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