US4225540A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Packing for heat and material exchange, particularly for cooling towers
Assignee: Carl Munters Euroform GmbH and Co KG
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Filing: 1979-04-10
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Granted: 1980-09-30
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Expires: 1999-04-10
Abstract
Abstract The invention relates to packing for heat and material exchange, particularly for cooling towers, composed of several layers of a corrugated or folded foil, whereby the corrugations or folds of adjacent layers cross and support one another, and a process for producing said packing.
Inventors
- 👤 Michael Kauschke
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 08:37
CPC Classifications
B; B01; B01J; B01J19/00; B01J19/32; F; F28; F28F; F28F25/00; F28F25/02; F28F25/08; F28F25/087; B01J2219/00; B01J2219/32; B01J2219/322; B01J2219/32203; B01J2219/3221; B01J2219/32213; B01J2219/32224; B01J2219/32227; B01J2219/32255; B01J2219/32258; B01J2219/324; B01J2219/32483; Y; Y10; Y10S; Y10S261/00; Y10S261/11
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
78 words
A packing for heat and material exchange in cooling towers, comprising a plurality of layers of a corrugated foil, said layers being positioned with the corrugations of adjacent layers crossing and supporting one another, said layers each having upper and lower longitudinally extending edges at least one of which is formed as a continuous straight longitudinal edge, said corrugations of each layer having a transition area wherein they taper from their maximum height into said straight longitudinal edge.
Claim 2
Dependent Claim
78 words
A packing for heat and material exchange in cooling towers, comprising a plurality of layers of a corrugated foil, said layers being positioned with the corrugations of adjacent layers crossing and supporting one another, said layers each having upper and lower longitudinally extending edges at least one of which is formed as a continuous straight longitudinal edge, said corrugations of each layer having a transition area wherein they taper from their maximum height into said straight longitudinal edge.
Claim 3
Dependent Claim
20 words
A packing as defined in claim 1 wherein said at least one edge is the lower edge of the layers.
Claim 4
Dependent Claim
15 words
A packing as defined in claim 1 wherein said transition area has an acute-angled cross-section.
Claim 5
Dependent Claim
28 words
A packing as defined in any of claims 1, 2, or 3 wherein said continuously straight longitudinal edge is reinforced in relation to the remainder of the layer.
Claim 6
Dependent Claim
20 words
A packing as defined in claim 4 wherein said straight longitudinal edge is thicker than the remainder of said layer.
Claim 7
Dependent Claim
20 words
A packing as defined in claim 4 wherein said straight longitudinal flat edge is folded over to reinforce that edge.
Claim 8
Dependent Claim
15 words
A packing as defined in claim 6 including a reinforcing inserted in said folded edge.
References Cited (Backward Citations)
US3265550A
Cited
US3281307A
Cited
US3574032A
Cited
US3500615A
Cited
US3526393A
Cited
US3599943A
Cited
US3618778A
Cited
US3785620A
Cited
US3801419A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1983-09-30 | 1984-03-31 | 1984-09-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-09-30 | 1988-03-31 | 1988-09-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-09-30 | 1992-03-31 | 1992-09-30 | $7700.00 | Window Closed / Lapsed |