Fluent material handling – with receiver or receiver coacting mea – With signal – indicator – recorder – inspection means or exhibitor – Level or pressure in receiver
Reexamination Certificate
2005-12-06
2009-08-04
Maust, Timothy L (Department: 3751)
Fluent material handling, with receiver or receiver coacting mea
With signal, indicator, recorder, inspection means or exhibitor
Level or pressure in receiver
C141S004000, C141S197000
Reexamination Certificate
active
07568507
ABSTRACT:
A diagnostic method for a gas supply system includes: determining a desired ramp rate for filling a vessel from a supply of compressed gas; monitoring the actual pressure of gas entering the vessel; and discontinuing the flow of gas into the vessel when the actual pressure deviates from the intended pressure at the desired ramp rate by an undesired amount. A system for carrying out the method includes a flow controller for controlling operation of the supply system to deliver compressed gas from a source to a vessel through a supply line at a desired ramp rate. The system employs a pressure monitor downstream of a control valve for measuring the pressure of gas directed into the vessel and transmitting pressure-related data to the flow controller, which closes the control valve to discontinue filling of the vessel if the actual pressure exceeds a permissible deviation from the intended pressure.
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Carlson Todd Eric
Cohen Joseph Perry
Farese David John
Schultz Keith H.
Witmer Amanda Elizabeth
Air Products and Chemicals Inc.
Arnett Nicolas A
Gourley Keith D.
Maust Timothy L
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