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Patent US4666593A successfully refreshed from Google Patents.
US4666593A
Expired / Lapsed
US
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Packing device for an installation for the biological treatment of waste waters
Assignee: Hamon Sobelco SA
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Filing: 1986-07-16
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Granted: 1987-05-19
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Expires: 2006-07-16
Abstract
Abstract The invention relates to a packing device for an installation for the biological treatment of waste waters, of the type comprising an assembly of sheets (1) having corrugations and separated by flat sheets (2), said corrugated sheets (1) defining, in conjunction with the flat sheets (2), channels (7;8) which extend from top to bottom, and in which the waste water trickles countercurrently to an oxygen-containing gas. This device is characterized in that the crests of the corrugations have crenellations (9) which in conjunction with the adjacent flat sheet (2) bound passages establishing communication between two channels (7, 7 or 8, 8) lying on the same side of a corrugated sheet.
Inventors
- 👤 Georges J. P. E. Bosne
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 11:32
CPC Classifications
C; C02; C02F; C02F3/00; C02F3/02; C02F3/10; C02F3/101; B; B01; B01J; B01J19/00; B01J19/32; B01J2219/00; B01J2219/32; B01J2219/322; B01J2219/32203; B01J2219/32206; B01J2219/3221; B01J2219/32213; B01J2219/324; B01J2219/32483; Y; Y02; Y02W; Y02W10/00; Y02W10/10; Y10; Y10S; Y10S261/00; Y10S261/72; Y10T; Y10T428/00; Y10T428/24; Y10T428/24628; Y10T428/24669; Y10T428/24694; Y10T428/24702; Y10T428/24711; Y10T428/24727; Y10T428/24744
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
103 words
Packing device for an installation for the biological treatment of waste waters, of the type comprising an assembly of sheets (1) having corrugations and separated by flat sheets (2), said corrugated sheets (1) defining, in conjunction with the flat sheets (2), channels (7; 8) which extend from top to bottom and in which the waste water trickles countercurrently to an oxygen-containing gas, in which device crests of the corrugations have crenellations (9) which in conjunction with the adjacent flat sheet (2) bound passages establishing communication between two channels (7, 7 or 8, 8) lying on the same side of a corrugated sheet (1).
Claim 2
Dependent Claim
103 words
Packing device for an installation for the biological treatment of waste waters, of the type comprising an assembly of sheets (1) having corrugations and separated by flat sheets (2), said corrugated sheets (1) defining, in conjunction with the flat sheets (2), channels (7; 8) which extend from top to bottom and in which the waste water trickles countercurrently to an oxygen-containing gas, in which device crests of the corrugations have crenellations (9) which in conjunction with the adjacent flat sheet (2) bound passages establishing communication between two channels (7, 7 or 8, 8) lying on the same side of a corrugated sheet (1).
Claim 3
Dependent Claim
31 words
Device as claimed in claim 1, wherein the crenellations (9) on the crests of two adjacent corrugations are offset, in the vertical direction of the corrugations, in relation to one another.
Claim 4
Dependent Claim
18 words
Device as claimed in claim 2, wherein the offsetting is such that the crenellations form a staggered pattern.
Claim 5
Dependent Claim
13 words
Device as claimed in claim 1, wherein the channels (7, 8) are rectilinear.
Claim 6
Dependent Claim
14 words
Device as claimed in claim 1, wherein the profile of the corrugations is trapezoidal.
Claim 7
Dependent Claim
15 words
Device as claimed in claim 5, wherein the profile of the crenellations (9) is trapezoidal.
Claim 8
Dependent Claim
21 words
Device as claimed in claim 1, wherein the flat separating sheets (2) are omitted in the bottom part of the device.
Claim 9
Dependent Claim
15 words
Device as claimed in claim 1, wherein the sheets (1, 2) are of thermoplastic material.
Claim 10
Dependent Claim
13 words
Device as claimed in claim 1, wherein the sheets (1, 2) are welded.
Claim 11
Dependent Claim
14 words
Device as claimed in claim 1, wherein the sheets (1, 2) are adhesive bonded.
Claim 12
Dependent Claim
25 words
Device as claimed in claim 1, wherein the corrugated sheets (1) and flat sheets (2) are provided with additional corrugations or embossing of slight dimensions.
References Cited (Backward Citations)
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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) | 1990-05-18 | 1990-11-17 | 1991-05-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-05-18 | 1994-11-17 | 1995-05-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-05-18 | 1998-11-17 | 1999-05-19 | $7700.00 | Window Closed / Lapsed |