Abstract: A filter underdrain apparatus and a method for manufacturing such apparatus. The apparatus includes a cover member, a water orifice member and a bottom member, each being individual pieces. The cover is placed over the water orifice member and connected thereto by welding. The bottom member is likewise connected to the cover and water orifice members by welding. A water passageway and an air passageway are defined in the inside of the assembled members. Water egress from the water passageway is provided by holes in the water orifice member and the cover. Air egress from the air passageway is provided by holes in the cover.
Type:
Grant
Filed:
August 24, 2004
Date of Patent:
August 12, 2008
Assignee:
Newtech Filter Systems, Inc.
Inventors:
David M. Hambley, Philip Hambley, Cole Carothers, Govert Bassett, II
Abstract: A filter underdrain apparatus and a method for manufacturing such apparatus. The apparatus includes a cover member, a water orifice member and a bottom member, each being individual pieces. The cover is placed over the water orifice member and connected thereto by welding. The bottom member is likewise connected to the cover and water orifice members by welding. A water passageway and an air passageway are defined in the inside of the assembled members. Water egress from the water passageway is provided by holes in the water orifice member and the cover. Air egress from the air passageway is provided by holes in the cover.
Type:
Grant
Filed:
April 29, 2000
Date of Patent:
September 28, 2004
Assignee:
Newtech Filter Systems, Inc.
Inventors:
Philip Hambley, David M. Hambley, Cole Carothers, Govert Bassett, II