Patent US3747304A successfully refreshed from Google Patents.
US3747304A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Means for reducing foam accumulation in a separation drum
Assignee: Standard Oil Co
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Filing: 1972-07-28
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Granted: 1973-07-24
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Expires: 1992-07-28
Abstract
Abstract The means comprises a horizontal distributor tray having an outlet weir and at least one horizontal foam retaining tray having an outlet weir and a foam retaining baffle, the distributor tray and one or more foam retaining trays being positioned with the inlet to the separator drum and to one another in such a manner that the liquid containing some gas coming into the drum is collected on the horizontal distributor tray and directed in a descending stream from the distributor tray to fall upon and be collected by the foam retaining tray located directly below so that liquid collected on the foam retaining tray will flow under the foam retaining baffle and over the outlet weir of the foam retaining tray in a descending stream. Additional foam retaining trays would see the descending liquid in sequence.
Inventors
- 👤 G Elmer
- 👤 K Muller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 12:50
CPC Classifications
B; B01; B01D; B01D19/00; B01D19/02
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
201 words
Means for reducing foam accumulation in a separator drum, which means comprises a horizontal distributor tray having an outlet weir and at least one horizontal foam retaining tray having an outlet weir and a foam retaining baffle, said distributor tray being located below the inlet to said drum in such a manner as to receive and collect liquid containing some vapor that is introduced into said drum and to direct liquid smoothly in a descending stream from said distributor tray, said foam retaining tray being disposed in such a manner with respect to said distributor tray that all liquid descending from said distributor tray will fall upon and be collected by said foam retaining tray, said outlet weir of said foam retaining tray and said foam retaining baffle being disposed with one another in such a manner that liquid collected upon said foam retaining tray will flow under said foam retaining baffle and over said outlet weir of said foam retaining tray in a descending stream from said foam retaining tray, said outlet weir having a raised portion at one end so that no liquid will flow over that end of said outlet weir, thereby providing a passage for ascending vapor.
Claim 2
Dependent Claim
201 words
Means for reducing foam accumulation in a separator drum, which means comprises a horizontal distributor tray having an outlet weir and at least one horizontal foam retaining tray having an outlet weir and a foam retaining baffle, said distributor tray being located below the inlet to said drum in such a manner as to receive and collect liquid containing some vapor that is introduced into said drum and to direct liquid smoothly in a descending stream from said distributor tray, said foam retaining tray being disposed in such a manner with respect to said distributor tray that all liquid descending from said distributor tray will fall upon and be collected by said foam retaining tray, said outlet weir of said foam retaining tray and said foam retaining baffle being disposed with one another in such a manner that liquid collected upon said foam retaining tray will flow under said foam retaining baffle and over said outlet weir of said foam retaining tray in a descending stream from said foam retaining tray, said outlet weir having a raised portion at one end so that no liquid will flow over that end of said outlet weir, thereby providing a passage for ascending vapor.
Claim 3
Dependent Claim
28 words
The means of claim 1 wherein there is a plurality of horizontal foam retaining trays, each of said trays having an outlet weir and a foam retaining baffle.
Claim 4
Dependent Claim
21 words
The means of claim 1 wherein said foam retaining baffle is parallel to said outlet weir of said foam retaining tray.
Claim 5
Dependent Claim
71 words
The means of claim 2 wherein a plurality of drain holes are present on each of said foam retaining trays in such a manner that the drain holes on a particular tray are not directly below drain holes on the tray above or directly above drain holes on the tray below, said drain holes being employed to reduce the amount of liquid flowing over the outlet weir of said particular tray.
Claim 6
Dependent Claim
19 words
The means of claim 2 wherein said plurality of horizontal foam retaining trays comprises four horizontal foam retaining trays.
Claim 7
Dependent Claim
27 words
The means of claim 2 wherein the foam retaining baffle and the outlet weir associated with each of said foam retaining trays are parallel to each other.
Claim 8
Dependent Claim
120 words
The means of claim 2 wherein a plurality of drain holes are present on each of said foam retaining trays in such a manner that the drain holes on a particular foam retaining tray are located on said particular foam retaining tray on the side of said particular foam retaining tray that is opposite to the side containing drain holeS of any tray directly above and any tray directly below said particular foam retaining tray and are not directly below drain holes on the foam retaining tray above or directly above the drain holes on the foam retaining tray below, said drain holes being employed to reduce the amount of liquid flowing over the outlet weir of said particular tray.
Claim 9
Dependent Claim
79 words
The means of claim 2 wherein a plurality of drain holes are present on each of said foam retaining trays in such a manner that each of the drain holes on a particular foam retaining tray is not directly below a drain hole on the tray above or directly above a drain hole on the tray below, said drain holes being employed to reduce the amount of liquid flowing over the outlet weir of said particular foam retaining tray.
Claim 10
Dependent Claim
71 words
The means of claim 5 wherein a plurality of drain holes are present on each of said foam retaining trays in such a manner that the drain holes on a particular tray are not directly below drain holes on the tray above or directly above drain holes on the tray below, said drain holes being employed to reduce the amount of liquid flowing over the outlet weir of said particular tray.
Claim 11
Dependent Claim
126 words
The means of claim 5 wherein a plurality of drain holes are present on each of said foam retaining trays in such a manner that the drain holes on a particular foam retaining tray are located on said particular foam retaining tray on the side of said particular foam retaining tray that is opposite to the side containing drain holes of any foam retaining tray directly above and any foam retaining tray driectly below said particular foam retaining tray and are not directly below drain holes on the foam retaining tray above or directly above the drain holes on the foam retaining tray below, said drain holes being employed to reduce the amount of liquid flowing over the outlet weir of said particular foam retaining tray.
Claim 12
Dependent Claim
79 words
The means of claim 5 wherein a plurality of drain holes are present on each of said foam retaining trays in such a manner that each of the drain holes on a particular foam retaining tray is not directly below a drain hole on the tray above or directly above a drain hole on the tray below, said drain holes being employed to reduce the amount of liquid flowing over the outlet weir of said particular foam retaining tray.
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) | 1976-07-23 | 1977-01-22 | 1977-07-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-07-23 | 1981-01-22 | 1981-07-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-07-23 | 1985-01-22 | 1985-07-24 | $7700.00 | Window Closed / Lapsed |