Patent US5895579A successfully refreshed from Google Patents.
US5895579A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Adjustable inlet for waste water treatment apparatus
Assignee: Schloss Environmental Equipment Inc
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Filing: 1998-07-06
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Granted: 1999-04-20
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Expires: 2018-07-06
Abstract
Abstract A method and apparatus for controlling the fluid flow through a waste fluid inlet channel, such as for a sewage treatment plant, includes a weir that may be inserted into the channel. The weir may be one or more plates that serve to reduce the effective cross section of the channel. The plates may be shaped so that the channel is more restricted at greater depths, or may be combined to form such other shape, in order to provide desirable flow patterns. Plates may be added, removed, or exchanged with different sized plates, to accommodate a range of fluid volume at a desired flow rate. The plates may combine with a bar rack, and will not interfere with the cleaning thereof. The plates may be positioned to allow grit to flow through without impediment.
Inventors
- 👤 Charles M. Schloss
- 👤 Charles E. Snyder
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 19:38
CPC Classifications
E; E02; E02B; E02B8/00; E02B8/04; B; B01; B01D; B01D29/00; B01D29/01; B01D29/44; B01D29/445; B01D29/60; B01D29/603; B01D29/88; B01D29/90; E02B8/02; E02B8/023
Claims Analysis
Total Claims: 24
Claim 1
Independent Claim
68 words
A device for controlling the velocity of fluid comprising: an intake channel of a fluid treatment plant, the channel having a bar rack or filtering screen allowing flow therethrough; a weir for controlling the flow through the bar rack or filtering screen, the weir having a plate substantially transverse to the channel; and means for attaching the weir within the channel to the bar rack or filtering screen.
Claim 2
Independent Claim
68 words
A device for controlling the velocity of fluid comprising: an intake channel of a fluid treatment plant, the channel having a bar rack or filtering screen allowing flow therethrough; a weir for controlling the flow through the bar rack or filtering screen, the weir having a plate substantially transverse to the channel; and means for attaching the weir within the channel to the bar rack or filtering screen.
Claim 3
Dependent Claim
15 words
The device of claim 1, further comprising means for attaching the weir to the channel.
Claim 4
Dependent Claim
58 words
The device of claim 1, wherein the plate is attachable to the bar rack or filter screen by a spacing panel, the spacing panel having an edge attachable to the plate and another edge attachable to the bar rack or filtering screen, whereby the plate is separated form the bar rack or filtering screen by the spacing panel.
Claim 5
Dependent Claim
41 words
The device of claim 1, wherein the channel has two sidewalls, the plate being attachable toward one sidewall; and further comprising a second plate positionable substantially transverse to the channel and being attachable to the bar rack toward the second sidewall.
Claim 6
Dependent Claim
58 words
The device of claim 1, further comprising a plurality of additional plates, each of the plurality of additional plates being separately detachable attachable to the bar rack or filtering screen or another of the plates, whereby the effective cross section of the channel is controlled by attaching the plate and a combination of the plurality of additional plates.
Claim 7
Dependent Claim
23 words
The device of claim 5, wherein at least some of the plates have widths differing from at least some of the other plates.
Claim 8
Dependent Claim
100 words
The device of claim 5, wherein the channel has a depth and a width, and wherein the plurality of additional plates have sizes that differ from one another and from the plate; the plate has a width greater than any of the plurality of additional plates; the plate is positionable with the channel at a greater depth than any of the plurality of additional plates; the plates being attachable at successively lesser depths, and the plates having successively less width, whereby the combination of all of the plates attached with the channel has a greater cress section at greater depths.
Claim 9
Dependent Claim
32 words
The device of claim 7, wherein each of the plates are attachable to the rack or screen, with the primary surface area of the plates spaced away from the rack or screen.
Claim 10
Dependent Claim
16 words
The device of claim 1, wherein the plate has a varying width along its cross section.
Claim 11
Dependent Claim
12 words
The device of claim 9, wherein the plate is substantially a triangle.
Claim 12
Dependent Claim
29 words
The device of claim 1, wherein the channel has a bottom and the plate is positioned so that a clear opening results between the channel bottom and the plate.
Claim 13
Independent Claim
60 words
A method for controlling the velocity of fluid within an intake channel of a fluid treatment plant, the method comprising: attaching a weir to the channel, the weir having a plate that has a transverse component to the channel; attaching the plate to the screening bar rack within the channel, whereby the plate is stabilized by attachment to the rack.
Claim 14
Independent Claim
60 words
A method for controlling the velocity of fluid within an intake channel of a fluid treatment plant, the method comprising: attaching a weir to the channel, the weir having a plate that has a transverse component to the channel; attaching the plate to the screening bar rack within the channel, whereby the plate is stabilized by attachment to the rack.
Claim 15
Dependent Claim
11 words
The method of claim 12, wherein the weir is detachably attachable.
Claim 16
Dependent Claim
35 words
The method of claim 12, wherein the channel contains a back cleaned bar rack, and the weir is attachable upstream from the rack, thereby permitting the rack to be cleaned without interference from the weir.
Claim 17
Dependent Claim
27 words
The method of claim 12, further comprising attaching the plate to the channel, whereby the plate is stabilized by attachment to both the rack and the channel.
Claim 18
Dependent Claim
35 words
The method of claim 12, wherein the channel contains a front cleaned bar rack, and the weir is attachable downstream from the rack, thereby permitting the rack to be cleaned without interference from the weir.
Claim 19
Dependent Claim
31 words
The method of claim 12, further comprising the step of attaching an additional plate to at least one of the first plate and the rack, whereby the channel is further restricted.
Claim 20
Dependent Claim
41 words
The method of claim 17, wherein the channel has depth and a width, and the additional plate has dimensions such that the combination of the plate and the additional plate has a greater width at a greater depth within the channel.
Claim 21
Dependent Claim
59 words
The method of claim 18, further comprising the step of attaching an additional plurality of plates to at least one of the channel, the first plate, the additional plate, or the additional plurality of plates, wherein the plates are dimensioned and sized so that the combination of attached plates has a greater width at greater depths within the channel.
Claim 22
Dependent Claim
36 words
The method of claim 12, wherein the channel has a width and a depth, and the plate is dimensioned and attached so that the plate has a greater width at a greater depth within the channel.
Claim 23
Dependent Claim
29 words
The method of claim 12, wherein the channel has a bottom, and the plate is attached so that a clear space results between the channel bottom and the plate.
Claim 24
Dependent Claim
27 words
The method of claim 12, wherein the weir is sized so that the channel has a fluid flow rate of between 1.25 to 3.28 feet per second.
References Cited (Backward Citations)
US207955A
Cited
US320545A
Cited
US1920158A
Cited
US1006730A
Cited
US1348554A
Cited
US1966628A
Cited
US2025722A
Cited
US2199788A
Cited
US2291121A
Cited
US3190448A
Cited
US5795467A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2002-04-19 | 2002-10-19 | 2003-04-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2006-04-19 | 2006-10-19 | 2007-04-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2010-04-19 | 2010-10-19 | 2011-04-20 | $7700.00 | Window Closed / Lapsed |