James Robert Tegart
Engineers at Davies Ave, Littleton, CO

License number

Colorado 13262

Issued Date

Feb 15, 1975

Renew Date

Mar 31, 2003

Expiration Date

Mar 31, 2003

Type

Professional Engineer

Address

381 W Davies Ave, Littleton, CO 80120

Professional information

Means Of Expelling Parallel Tanks To Low Residuals

US Patent:

4768541, Sep 6, 1988

Filed:

Nov 3, 1986

Appl. No.:

6/925986

Inventors:

Preston E. Uney - Pine CO
James R. Tegart - Littleton CO
David R. Abbott - Indian Hills CO

Assignee:

Martin Marietta Corporation - Bethesda MD

International Classification:

B64G 100

US Classification:

137154

Abstract:

A multiple tank flow system is provided in which a plurality of liquid storage tanks or reservoirs are connected with their outlets in parallel with the piping arranged so that the outlet from each tank shall have the same or similar pressure drop at a specific flow rate. A surface tension retaining device is mounted within each tank at the outlet opening to prevent the pressurization gas within the tank from entering the outlet while liquid is still flowing from one or more of the tanks within the system. The surface tension device can be of any suitable design such as a saucer-shaped arrangement having relatively thick, flat support members forming the structure with suitable screen-type material positioned across the entire outer surface of the support members. The size of the openings within the screen material is arranged to provide an adequate surface tension film to produce a required liquid/gaseous interface to prevent the pressurization gas from entering the tank outlet.