Patent US4267978A successfully refreshed from Google Patents.
US4267978A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Liquid distribution device in liquid-vapor contact apparatus
Assignee: Individual
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Filing: 1979-08-21
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Granted: 1981-05-19
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Expires: 1999-08-21
Abstract
Abstract The present invention provides a device for the even distribution of liquids onto column areas which comprises distributor troughs with overflow slits and liquid guide elements, hairpin shaped guide elements having a pair of arms arranged at a distance from each other disposed in each overflow slit which is wider at the bottom and adjacent to the outside face of the trough or on lugs attached thereto, the free ends of the guide elements being led to the outside, to a level below that of the bottom of the trough.
Inventors
- 👤 Rolf P. C. Manteufel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 08:53
CPC Classifications
B; B01; B01D; B01D53/00; B01D53/14; B01D53/18; B01D53/185; B01D3/00; B01D3/008; F; F28; F28F; F28F25/00; F28F25/02; F28F25/04; Y; Y10; Y10T; Y10T137/00; Y10T137/8593; Y10T137/85938
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
102 words
A device for the even distribution of liquids onto an area, said device comprising a distributor trough having vertically extending walls, overflow slits distributed along said walls and liquid guide means extending from each said slit, said liquid guide means comprising a pin-shaped pair of arms spaced from each other, each said overflow slit being wider at the top and narrower at the bottom with said liquid guide means extending from the outside face of the bottom of each said overflow slit, each said liquid guide means having a free end being disposed below the level of the bottom of the trough.
Claim 2
Independent Claim
102 words
A device for the even distribution of liquids onto an area, said device comprising a distributor trough having vertically extending walls, overflow slits distributed along said walls and liquid guide means extending from each said slit, said liquid guide means comprising a pin-shaped pair of arms spaced from each other, each said overflow slit being wider at the top and narrower at the bottom with said liquid guide means extending from the outside face of the bottom of each said overflow slit, each said liquid guide means having a free end being disposed below the level of the bottom of the trough.
Claim 3
Dependent Claim
28 words
A device according to claim 1, in which the distance between the two arms of the liquid guide means is smaller than the width of the overflow slit.
Claim 4
Dependent Claim
41 words
The device as claimed in claim 1 in which feed channels are provided in each distributor trough, each said channel having a feed aperture therein for admitting liquid to the trough at a level below the level of said overflow slits.
Claim 5
Independent Claim
55 words
The device as claimed in claims 1, 2 or 3, in which a common pre-distributor is provided for feeding liquid to the individual distributor troughs, said common pre-distributor having overflow slits disposed at the same level and each having a width which is proportional to the number of overflow slits of an associated distributor trough.
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) | 1984-05-18 | 1984-11-17 | 1985-05-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-05-18 | 1988-11-17 | 1989-05-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-05-18 | 1992-11-17 | 1993-05-19 | $7700.00 | Window Closed / Lapsed |