Fluent material handling – with receiver or receiver coacting mea – Diverse fluid containing pressure filling systems involving... – Filling with exhausting the receiver
Patent
1997-03-14
1998-06-16
Jacyna, J. Casimer
Fluent material handling, with receiver or receiver coacting mea
Diverse fluid containing pressure filling systems involving...
Filling with exhausting the receiver
141 95, 141 7, 137587, B67D 5378
Patent
active
057656037
ABSTRACT:
A vapor recovery system monitoring system includes a vacuum monitor and a vent sensor. The vacuum monitor has a signal relay in communication with a vacuum system served by a vacuum source to generate a first signal upon actuation of the vacuum source for recovery of displaced fuel vapor and a second signal when a minimum vacuum level is achieved; a timer measuring elapsed time between first and second signal; a comparator comparing elapsed time with a predetermined standard; and an error display actuated when the predetermined number of instances of elapsed time is exceeded. The vent sensor, mounted to a vent conduit for an underground storage tank, defines an orifice creating a pressure differential when volume flow of vent emission exceeds a predetermined level; a pressure differential switch; a counter receiving a signal from the pressure differential switch for indication of venting frequency over a predetermined time period; a timer receiving a signal from the pressure differential switch for indication of total venting time over a predetermined time period; a comparator comparing total venting time with a predetermined acceptable total venting time; and an error message display actuated when a predetermined acceptable total venting time is exceeded. A method for monitoring a vapor recovery system is also described.
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Healy Systems, Inc.
Jacyna J. Casimer
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