Fluent material handling – with receiver or receiver coacting mea – Processes – Filling dispensers
Patent
1976-04-02
1977-10-11
Bell, Jr., Houston S.
Fluent material handling, with receiver or receiver coacting mea
Processes
Filling dispensers
141 83, 141231, B65B 104, B65B 304
Patent
active
040530019
ABSTRACT:
A method of charging or recharging one or more agent storage containers which may be located at suitable locations about a high value room or area which is to be protected from fire or explosions. Some of the agent storage containers may be placed in relatively inaccessible locations and one or more can be discharged in response to the detection of combustion to immediately suppress or extinguish the fire or deflagration-type rapid combustion. Each type of container must be properly charged with a relatively precise predetermined mass of fire extinguishing fluid agent, such as bromotrifluoromethane or the like, for effective operation. The method of the present invention eliminates or greatly reduces the time, expense and safety hazards involved in prior charging methods by no longer requiring that the agent storage container be removed from its location and placed on a scale during the charging operation.
In a first embodiment, a supply cylinder is coupled to an agent storage container to be charged and its initial weight is taken. The weight of the fluid agent corresponding to the predetermined mass which must be transferred is calculated and the calculated weight is subtracted from the initial weight to ascertain a desired weight. The supply cylinder remains on a weighing apparatus so that the reducing weight can be monitored as the agent is transferred from the cylinder to the container. When the desired weight is attained, transfer is terminated and the agent storage container is properly filled. The agent storage container may be superpressurized with nitrogen either before or after it is filled, to complete the charging operation.
Alternate methods include the use of one or more fluid transfer pumps to effect the transfer, the use of a pressurized inert gas in conjunction with or in lieu of the pumps for effecting transfer, methods employing the use of load cells for use with relatively large supply tanks and alternate hot weather and cold weather charging techniques wherein the heat exchange medium is external or internal to the supply tank.
REFERENCES:
patent: 3875980 (1975-04-01), Getz
patent: 3951185 (1976-04-01), Bower et al.
Erlich Ricky M.
Healey William E.
Heineman Morse R.
Remaley James H.
Bell, Jr. Houston S.
W. E. Healey & Associates, Inc.
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