GORDON R PYPER
Engineering in South Hero, VT
License number
Massachusetts 28897
Issued Date
Sep 16, 1977
Expiration Date
Jun 30, 1990
Type
Sanitary Engineer
Address
Address
South Hero, VT 05486
Professional information
Compact Biofilter For Drinking Water Treatment
US Patent:
5032261, Jul 16, 1991
Filed:
Nov 27, 1989
Appl. No.:
7/441310
Inventors:
Gordon R. Pyper - South Hero VT
Assignee:
Dufresne-Henry, Inc. - VT
International Classification:
B01D 2412
US Classification:
210137
Abstract:
A filtration system for filtering out bacteria, Giardia cysts, turbidity and other impurities in raw water supplied to a home or the like including a sealed container divided into an upper and a lower chamber by a support plate, the support plate supporting a quantity of filter material sufficient for filtering out undesired bacteria, turbidity and other impurities from the raw water; the sealed container having a raw water inlet pipe communicating with an inlet area above the filter material for supplying the raw water, and a filtered water outlet pipe communicating with the lower chamber for exhausting filtered water from the container; and further including a geofilter cloth provided on top of the filter material for supporting a biological "schmutzdecke" growth thereon which, along with the filter material, filters out bacteria, turbidity, Giardia cysts and other impurities. The sealed container also includes a quick drainage pipe and a treated water supply which are provided for cleaning of the filtration system.