Robert Eugene Emrie
Engineers at Sunfish, Austin, TX
License number
Colorado 4013
Issued Date
Dec 12, 1959
Renew Date
Sep 30, 1994
Expiration Date
Sep 30, 1994
Type
Professional Engineer
Address
Address
617 Sunfish St, Austin, TX 78734
Professional information
Underdrain Unit With Air/Water Backwash For Granular Filtration System
US Patent:
4331542, May 25, 1982
Filed:
Aug 1, 1980
Appl. No.:
6/174716
Inventors:
Robert E. Emrie - Austin TX
Assignee:
Enviroquip, Inc. - Austin TX
International Classification:
B01D 2324
US Classification:
210794
Abstract:
A self-supporting underdrain unit to be placed upon the substantially horizontal floor of a filter tank to provide a liquid filtration system is disclosed. The self-supporting underdrain unit provides separately controllable fluid and exhaust gas header systems for backwashing. The exhaust gas and backwashing fluid are mixed in a turbulent mixing zone to provide superior backwashing and cleansing action.