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US 5,680,989 AGranted
Adjustable weir for liquid distribution systems
AssigneeNorman F. Gavin
InventorsRichard F. Plachy, Norman W. Gavin
Life of this patent
Estimating the term…
Abstract
An adjustable weir for use in a liquid distribution system utilizes a weir plate having a weir opening whose height can be adjusted vertically. The weir plate is mounted to the end of a fluid distribution outlet in a manner which will maintain its proper orientation while allowing its vertical position with respect to the outlet opening to be varied.
Claims18
An adjustable weir for a liquid distribution system comprising:
- a weir plate having a generally cusp-shaped weir opening which has a vertical axis of symmetry and which has a preferred operative orientation in which said vertical axis of symmetry is generally vertical;
- a weir plate height adjusting means supporting said weir plate;
- means for shifting said weir plate in said weir plate height adjusting means to vary a vertical position of said weir opening in said adjusting means while maintaining said weir opening's vertical axis of symmetry in a generally vertical orientation;
- and
- means to position said weir plate height adjusting means in said liquid distribution system.
2 more elements
A method for accomplishing fluid flow distribution in a liquid distribution system including the steps of:
- providing a liquid distribution center having at least one fluid inlet and a plurality of fluid distribution outlets;
- placing a weir assembly having a weir opening and a weir height adjusting assembly on each of said fluid distribution outlets;
- providing each weir opening with a generally cusp shape having a lower apex;
- supporting each said weir assembly for movement of each said generally cusp-shaped weir opening generally vertically on each of said fluid distribution outlets;
- setting said apex of said cusp-shaped weir opening for each of said weir assemblies at its lowest height;
- flowing fluid to said distribution center and increasing a fluid level in said center until fluid flow is initiated through said apex of a highest one of said weir assemblies;
- and
- adjusting the remaining ones of said weir assemblies generally vertically until heights of apexes of their weir openings match that of said apex of said highest weir assembly.
5 more elements
An adjustable weir for a liquid distribution system comprising:
- a generally circular weir plate having a weir opening which has a preferred operative orientation;
- a weir plate height adjusting means supporting said weir plate, said weir plate height adjusting means including a weir plate mounting plug having an aperture in which said circular weir plate is rotatably supported;
- at least one fluid distribution outlet in said liquid distribution system, said fluid distribution outlet having a central axis, said aperture being eccentrically positioned in said plug with respect to said central axis;
- and
- means for shifting said weir plate in said weir plate height adjusting means to vary the position of said weir opening in said adjusting means while maintaining said opening's operative orientation.
2 more elements
An adjustable weir for a liquid distribution system comprising:
- a generally rectangular weir plate having a weir opening which has a preferred operative orientation;
- a weir plate height adjusting means supporting said weir plate, said weir plate height adjusting means including a front weir support plate having an aperture, said weir plate being supported for vertical movement with respect to said weir support plate;
- a plug body which is rotatably positionable in said liquid distribution system, said plug body supporting said weir plate height adjusting means;
- and
- means for shifting said weir plate in said weir plate height adjusting means to vary the position of said weir opening in said adjusting means while maintaining said opening's operative orientation.
2 more elements
Dependencies are inferred from the claim text.