US3570825A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Weir flow distributors of the pan type
Assignee: Saint Gobain Abrasives Inc
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Filing: 1968-06-10
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Granted: 1971-03-16
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Expires: 1988-06-10
Abstract
Abstract A distributor plate having a plurality of liquid passages therethrough, characterized by perforate liquid diffuser positioned beneath the plate and in correspondence with the passages, to subdivide liquid introduced into the passages, into a plurality of substreams. A plurality of openings in the plate and a cylindrical gas riser of smaller diameter than the openings are positioned in each opening. The gas risers coact with the openings as a core to define a plurality of annular passages through the plate. The liquid diffuser consists of discrete, perforate element in the form of a shallow, annular, open pan positioned below the plate and in correspondence with each of the plurality of passages. The pan has an inner periphery formed integral with the cylindrical gas riser, and an outer periphery of greater diameter than the outside diameter of its corresponding annular passage. Brackets secure a portion of the outer periphery of the annular pan to the plate. The annular passage and the annular pan coact to further divide the streams, each into a plurality of substreams.
Inventors
- 👤 John S Eckert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 14:08
CPC Classifications
B; B01; B01D; B01D3/00; B01D3/008; B01D2257/00; B01D2257/50; B01D2257/504
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
171 words
In a distributor comprising a plate adapted to confine a pool of liquid of predetermined head therein, a plurality of openings in said plate, a cylindrical gas riser of smaller diameter than said openings positioned in each opening and coacting therewith as a core to define a plurality of annular passages through said plate, said passages being operative to divide liquid exceeding said predetermined head into a plurality of streams, the improvement comprising a plurality of discrete, perforate, liquid-diffusing means each in the form of a shallow, annular, open pan positioned below said plate and in correspondence with each of said plurality of passages, said pan having an inner periphery formed integrally with said cylindrical gas riser, and an outer periphery of greater diameter than the outside diameter of its corresponding annular passage, and means including brackets securing a portion of the outer periphery of said annular pan to said plate, whereby said annular passage and said annular pan coact to further divide said streams, each into a plurality of substreams.
Claim 2
Dependent Claim
171 words
In a distributor comprising a plate adapted to confine a pool of liquid of predetermined head therein, a plurality of openings in said plate, a cylindrical gas riser of smaller diameter than said openings positioned in each opening and coacting therewith as a core to define a plurality of annular passages through said plate, said passages being operative to divide liquid exceeding said predetermined head into a plurality of streams, the improvement comprising a plurality of discrete, perforate, liquid-diffusing means each in the form of a shallow, annular, open pan positioned below said plate and in correspondence with each of said plurality of passages, said pan having an inner periphery formed integrally with said cylindrical gas riser, and an outer periphery of greater diameter than the outside diameter of its corresponding annular passage, and means including brackets securing a portion of the outer periphery of said annular pan to said plate, whereby said annular passage and said annular pan coact to further divide said streams, each into a plurality of substreams.
Claim 3
Dependent Claim
80 words
In a distributor comprising a plate, a plurality of gas risers extending through said plate, each circumscribed by a spaced, concentric weir, defining an annular passage for liquid therebetween, the improvement comprising liquids diffusing means, in the form of a shallow, annular, perforate, open pan, positioned beneath each said passage, said pan having an inner periphery formed integrally with said gas riser, said pan coacting with said passage to divide into a plurality of streams, liquid introduced into said passage.
Claim 4
Dependent Claim
80 words
In a distributor comprising a plate, a plurality of gas risers extending through said plate, each circumscribed by a spaced, concentric weir, defining an annular passage for liquid therebetween, the improvement comprising liquids diffusing means, in the form of a shallow, annular, perforate, open pan, positioned beneath each said passage, said pan having an inner periphery formed integrally with said gas riser, said pan coacting with said passage to divide into a plurality of streams, liquid introduced into said passage.
Claim 5
Dependent Claim
26 words
The distributor as defined in claim 2 wherein the outside diameter of said annular pan is greater than the outside diameter of its corresponding annular passage.
Claim 6
Dependent Claim
25 words
The distributor as defined in claim 2 including means securing at least a portion of the outer periphery of said annular pan to said plate.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-03-15 | 1974-09-14 | 1975-03-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-03-15 | 1978-09-14 | 1979-03-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-03-15 | 1982-09-14 | 1983-03-16 | $7700.00 | Window Closed / Lapsed |