US4568461A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for distributing a substance over a surface
Assignee: Rhone Poulenc Chimie de Base SA
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Filing: 1984-03-12
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Granted: 1986-02-04
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Expires: 2004-03-12
Abstract
Abstract An apparatus for distributing a substance over a surface includes a feed compartment which is provided with substance feed means and which is defined by a bottom, a rear wall, two side walls and a front wall forming an overflow. A distribution compartment has a rear wall defined by the overflow, two side walls, a front wall, a bottom and an opening for the substance to flow out. The feed compartment is provided with baffle members to ensure distribution of the substance therein.
Inventors
- 👤 Jean Aoustin
- 👤 Guy Nineuil
- 👤 Bernard Wallon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 17:10
CPC Classifications
B; B01; B01D; B01D33/00; B01D33/70; B01D33/72
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
93 words
Apparatus for distributing a slurry over a filtering surface comprising: a feed compartment defined by a bottom wall, a rear wall, two side walls and a front wall forming an overflow; means for feeding the substance to said feed compartment; a distribution compartment having a rear wall defined by said overflow, two side walls, a front wall, a bottom and means defining an opening permitting said substance to flow out over the filtering surface; and baffle members vertically fixed on at least one of the front and rear walls within said feed compartment.
Claim 2
Dependent Claim
93 words
Apparatus for distributing a slurry over a filtering surface comprising: a feed compartment defined by a bottom wall, a rear wall, two side walls and a front wall forming an overflow; means for feeding the substance to said feed compartment; a distribution compartment having a rear wall defined by said overflow, two side walls, a front wall, a bottom and means defining an opening permitting said substance to flow out over the filtering surface; and baffle members vertically fixed on at least one of the front and rear walls within said feed compartment.
Claim 3
Dependent Claim
44 words
Apparatus according to claim 1 further including means defining orifices in the wall forming the overflow means for the overflow of the slurry to be filtered, and deflectors which are fixed to the wall forming the overflow means in the vicinity of said orifices.
Claim 4
Dependent Claim
26 words
Apparatus according to claim 2 wherein said deflectors are formed by flat members extending over substantially the entire height of the wall forming the overflow means.
Claim 5
Dependent Claim
20 words
Apparatus according to claim 2 wherein said deflectors are positioned to channel the flow of said slurry through said orifices.
Claim 6
Dependent Claim
12 words
Apparatus according to claim 1 wherein the baffle members comprise angle members.
Claim 7
Dependent Claim
38 words
Apparatus according to claim 5 wherein at least one angle member is engaged with a second angle member, said angle members including means for fixing same and for adjustment in height of one with respect to the other.
Claim 8
Dependent Claim
50 words
Apparatus according to claim 1 wherein the distribution compartment is provided with a plate forming a deflecting screen which is fixed with respect to one of the front or rear walls of said distribution compartment and disposed above said opening and extends over the entire length of said distribution compartment.
Claim 9
Dependent Claim
17 words
The apparatus of claim 7 wherein said plate is inclined towards the bottom of said distribution compartment.
Claim 10
Dependent Claim
32 words
Apparatus according to claim 1 wherein means defining a spacing is provided between the lower end of at least one baffle member and the wall forming the bottom of the feed compartment.
Claim 11
Dependent Claim
13 words
Apparatus according to claim 1 wherein the baffle members are adjustable in height.
Claim 12
Dependent Claim
49 words
Apparatus according to claim 1 wherein said feed means comprise means defining a conduit which opens into the feed compartment, and a ring member that has projection portions directed towards the bottom of the feed compartment and that is adjustable in height along the conduit and rotationally about same.
Claim 13
Dependent Claim
34 words
Apparatus according to claim 11 wherein the conduit is provided with a protection plate covering the feed compartment in the vicinity of the conduit and extending over the entire width of said feed compartment.
Claim 14
Dependent Claim
24 words
Apparatus according to claim 1 wherein said baffle members are placed to provide a more even distribution of said slurry in said feed compartment.
Claim 15
Dependent Claim
104 words
Apparatus for distributing a slurry over a filtering surface comprising: a feed compartment defined by a bottom wall, a rear wall, two side walls and a front wall forming an overflow; angular baffle members comprising limb portions and vertically fixed on at least one of the front and rear walls within said feed compartment by attachment of said limb portions; means for feeding said slurry to said feed compartment; and a distribution compartment having a rear wall defined by said overflow, two side walls, a front wall, a bottom and means defining an opening permitting said slurry to flow out over the filter surface.
Claim 16
Dependent Claim
104 words
Apparatus for distributing a slurry over a filtering surface comprising: a feed compartment defined by a bottom wall, a rear wall, two side walls and a front wall forming an overflow; angular baffle members comprising limb portions and vertically fixed on at least one of the front and rear walls within said feed compartment by attachment of said limb portions; means for feeding said slurry to said feed compartment; and a distribution compartment having a rear wall defined by said overflow, two side walls, a front wall, a bottom and means defining an opening permitting said slurry to flow out over the filter surface.
Claim 17
Dependent Claim
147 words
Apparatus for distributing a slurry over a filtering surface comprising: a feed compartment defined by a bottom wall, a rear wall, two side walls and a front wall forming an overflow; angular baffle members comprising limb portions and vertically fixed on at least one of the front and rear walls within said feed compartment by attachment of said limb portions; means for feeding the slurry to said feed compartment; a distribution compartment having a rear wall defined by said overflow, two side walls, a front wall, a bottom and means defining an opening permitting said slurry to flow out over the surface; and a solid plate forming a deflecting screen which is fixed with respect to one of the front or rear walls of said distribution compartment, being disposed above said opening permitting said slurry to flow and extending over the entire length of said distribution compartment.
Claim 18
Dependent Claim
147 words
Apparatus for distributing a slurry over a filtering surface comprising: a feed compartment defined by a bottom wall, a rear wall, two side walls and a front wall forming an overflow; angular baffle members comprising limb portions and vertically fixed on at least one of the front and rear walls within said feed compartment by attachment of said limb portions; means for feeding the slurry to said feed compartment; a distribution compartment having a rear wall defined by said overflow, two side walls, a front wall, a bottom and means defining an opening permitting said slurry to flow out over the surface; and a solid plate forming a deflecting screen which is fixed with respect to one of the front or rear walls of said distribution compartment, being disposed above said opening permitting said slurry to flow and extending over the entire length of said distribution compartment.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1989-02-03 | 1989-08-05 | 1990-02-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-02-03 | 1993-08-05 | 1994-02-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-02-03 | 1997-08-05 | 1998-02-04 | $7700.00 | Window Closed / Lapsed |