Disc filter and a method of constructing a disc filter sector
AssigneeGL&V Luxembourg S.å.r.l.
InventorsEric Giasson, Gregory Gilmore, Karl Gabrielsson, James P. Burns, John O. Milliken
Life of this patent
Estimating the term…
Abstract
A disc filter sector comprising a trapezium tubular support frame, and a trapezium screen frame supporting a screen cloth, the trapezium filter medium dement being connected to the trapezium tubular support structure. More particularly, there is a pair of such filter sectors, and the sectors are connected together by an overlying cap.
Claims7
A method of constructing a filtering apparatus including:
- a support structure, the support structure having filtrate compartments communicating with openings in the filter medium for receiving liquid drained through the latter, filter medium elements, each having an end mounted to the support structure by an overlying cap, the support structure having a filter medium element end support portion, and each cap having a filter medium element end overlying portion, the overlying portion including a plurality of tabs spaced apart along the longitudinal axis of the overlying portion, each tab having a first portion that, when the filtering apparatus is assembled, extends perpendicular to the support portion, and a second portion angled relative to the first portion and extending parallel to the longitudinal axis of the cap, the support portion having tab receiving openings spaced apart along the longitudinal axis of the support portions,
- the method comprising the steps of:
- placing the filter medium element end on the support portion,
- placing an overlying portion over the filter medium element end and inserting each respective tab into a respective opening in the support portion, and then
- moving the overlying portion along the support portion, so that the tab second portion is then under the support portion, thus holding the cap on the support structure, with the filter medium element end trapped in between.
A disc filter including two adjacent filter sectors, each filter sector comprising a tubular support frame structure, and a screen cloth supported by a filter medium element that covers the open area of the tubular support frame structure, and means for connecting together the support structure, the filter medium elements, and the two adjacent filter sectors, the connecting means comprising an overlying cap attached to the adjacent filter sectors.
A disc filter according to claim 3 wherein the tubular support structure is a trapezium.
A disc filter including two adjacent filter sectors, each filter sector comprising a filter medium, a support structure, the support structure having filtrate compartments communicating with openings in the filter medium for receiving liquid drained through the latter, an overlying cap, a filter medium element having an end mountable to the support structure by the overlying cap, the support structure having a filter medium element end support portion, the filter medium being supported by the filter medium element, and means for connecting together the support structure, the filter medium element, and the two adjacent filter sectors, the connecting means being the overlying cap having a filter medium element end overlying portion, the overlying portion including a plurality of tabs spaced apart along the longitudinal axis of the overlying portion, each tab having a first portion that, when the disc filter is assembled, extends perpendicular to the support portion, and a second portion angled relative to the first portion and extending parallel to the longitudinal axis of the cap, the support portion having tab receiving openings spaced apart along the longitudinal axis of the support portions, the filter medium element end being placed on the support portion,
- the cap overlying portion being placed over the filter medium element end, each respective tab being inserted into a respective opening in the support portion, the overlying portion being moved along the support portion, so that the tab second portion is under the support portion, thus holding the cap on the support structure, with the filter medium element end trapped in between.
A disc filter sector comprising a tubular support frame structure, a filter medium element supporting a screen cloth that covers the open area of the tubular support frame structure, the filter medium element being connected to the tubular support structure.
Dependencies are inferred from the claim text.