Patents
US 8070142 B2: Downcomer distributor
- Granted
- 2011-12-06
- Filed
- 2008-01-24 application 12018882
- Type
- Utility · 22 claims
- Elsewhere
- Google Patents ↗ · USPTO patent document ↗ · USPTO Patent Center record ↗
Abstract
A tray assembly is provided for improved gas/liquid contact when used in a large chemical process tower. Each tray has a downcomer wall of which the lower portion is a distributor. The distributor has discharge ports sized to control the rate of liquid flow at different positions across the distributor and flanges aligned individually to direct liquid flow from different discharge ports across different areas of the tray deck immediately below the downcomer. In combination, discharge ports and liquid flow directing flanges effect even liquid flow across the surface of the tray immediately below. Benefits of this invention are trays with better mass transfer efficiency and enhanced capacity compared with prior art trays.
Source: PVGPATDIS, file of 2026-04-10 (ipg111206.xml).
Assignees
| Assignee | Type | Place | Also on furp.org | Source |
|---|---|---|---|---|
| AMT International Inc. 26 patents | US company or organization | Plano, TX | AMT INTERNATIONAL, INC. State business registration EXACT high confidence: identical full name and state | PVGPATDIS, file of 2026-04-10 |
| PETROLIAM NASIONAL BERHAD 17 patents | Foreign company or organization | Kuala Lumpur, MY | PVGPATDIS, file of 2026-04-10 |
Inventors
| Inventor | Place | Patents | Person page | Source |
|---|---|---|---|---|
| Adam T. Lee | Dallas, TX | 11 | PVGPATDIS, file of 2026-04-10 | |
| Larry W. Burton | Waxahachie, TX | 5 | PVGPATDIS, file of 2026-04-10 | |
| Zainab Kayat | Kapar, MY | 3 | PVGPATDIS, file of 2026-04-10 | |
| Pau Kiew Huai | Petaling Jaya, MY | 1 | PVGPATDIS, file of 2026-04-10 |
CPC categories
| Subclass | Category | First group | Source |
|---|---|---|---|
| B01D | Separation | B01D3/324 | PVGPATDIS, file of 2026-04-10 |
Cooperative Patent Classification, as currently assigned (one row per subclass).
Assignments and security interests
| Recorded | What | From | To | Reel/frame | Source |
|---|---|---|---|---|---|
| 2009-06-05 | Correction Corrective assignment to correct the assignees name from petrolium nasional berhad previously recorded on reel 022624 frame 0974. assignor(s) hereby confirms the assignees name should be petroliam nasional berhad. | AMT INTERNATIONAL INC. signed 2009-04-13 | AMT INTERNATIONAL INC. PLANO, TX PETROLIAM NASIONAL BERHAD KUALA LUMPUR | 22786/629 | ECORSEXC, file of 2026-09-25 |
| 2009-05-01 | Assignment Assignment of assignor's interest | AMT INTERNATIONAL INC. signed 2009-04-13 | AMT INTERNATIONAL INC. PLANO, TX PETROLIUM NASIONAL BERHAD KUALA LUMPUR | 22624/974 | ECORSEXC, file of 2026-09-25 |
| 2008-01-29 | Assignment Assignment of assignor's interest | HUAI, PAU KIEW signed 2008-01-04 KAYAT, ZAINAB signed 2008-01-04 BURTON, LARRY W. signed 2008-01-10 LEE, ADAM T. signed 2008-01-10 | AMT INTERNATIONAL, INC. PLANO, TX | 20429/754 | ECORSEXC, file of 2026-09-25 |
Documents recorded with the USPTO Assignment Recordation Branch that list this patent. A security interest is a lender’s claim on the patent as collateral; a release ends it.
USPTO bulk data: PatentsView granted patents, disambiguated (PVGPATDIS) for patents, assignees, inventors, places and CPC categories; the USPTO Patent Assignment Dataset (ECORSEXC) for assignments and security interests. Patents filed in the last 20 years. No claims or full text. Links to other records are by name (and state): EXACT means the identical full name and state; FUZZY means a looser name match, with the confidence shown.