US3830684A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Filling sheets for liquid-gas contact apparatus
Assignee: Hamon Sobelco SA
•
Filing: 1972-05-09
•
Granted: 1974-08-20
•
Expires: 1992-05-09
Abstract
Abstract Corrugated sheet type filling for liquid-gas contact apparatus is provided with a plurality of ramp-like deformations which reduce liquid channeling particularly in the trough portions of the corrugations.
Inventors
- 👤 M Hamon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 10:06
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; B01J2219/32206; B01J2219/3221; B01J2219/32224; B01J2219/32227; B01J2219/32248; B01J2219/32251; Y; Y10; Y10T; Y10T428/00; Y10T428/24; Y10T428/2419; Y10T428/24264; Y10T428/24273; Y10T428/24281; Y10T428/24628; Y10T428/24669; Y10T428/24694; Y10T428/24702
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
14 words
The invention defined in claim 1 wherein at least the corrugated sheet comprises plastic.
Claim 2
Dependent Claim
11 words
The invention defined in claim 2 wherein the plastic comprises polyvinylchloride.
Claim 3
Dependent Claim
44 words
A filling sheet as defined in claim 1 wherein each of said ramps is triangle-shaped and projects over one face of the corrugation and this ramp being limited laterally by a plane face enclosed in the plane tangent to the corrugation along the edge.
Claim 4
Dependent Claim
48 words
A filling sheet as defined in claim 1 wherein each of the protrusions is formed by moving laterally one point of a corrugation edge, to form two ramps, one on each side of the corrugation, and projecting respectively on the concave side and on the convex side thereof.
Claim 5
Dependent Claim
23 words
A filling sheet as defined in claim 1 wherein a ramp is formed on each face of the two sides of each corrugation.
Claim 6
Dependent Claim
45 words
A filling sheet as defined in claim 6 wherein the ramps located in the concave part of each of the corrugations have a common edge enclosed in the symmetry plane of the corrugation, which symmetry plane also forms a symmetry plane for the entire protrusion.
Claim 7
Dependent Claim
57 words
A filling sheet as defined in claim 6 wherein the ramps which project over the convex part of the corrugation are arranged symmetrically with respect to each other, on both sides of the symmetry plane of the corrugation and are limited by a common plane face enclosed in the plane tangent to the corrugation along the edge.
Claim 8
Dependent Claim
30 words
A filling device defined in claim 1 wherein the upper edges of the corrugated sheets are bent half on one side and half on the other side of the sheet.
Claim 9
Dependent Claim
44 words
The invention defined in claim 1 including plane filling sheets secured to the edges of the corrugated sheets; and wherein the upper edges of the corrugated and plane sheets are bent half on one side and half on the other side of the sheets.
References Cited (Backward Citations)
US1987798A
Cited
US2481046A
Cited
US3158527A
Cited
US3281307A
Cited
US3231490A
Cited
US3475012A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-08-19 | 1978-02-18 | 1978-08-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-08-19 | 1982-02-18 | 1982-08-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-08-19 | 1986-02-18 | 1986-08-20 | $7700.00 | Window Closed / Lapsed |