Patent US3724825A successfully refreshed from Google Patents.
US3724825A
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Insert for treating fluids and gases
Assignee: Rigips Stempel GmbH
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Filing: 1970-09-24
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Granted: 1973-04-03
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Expires: 1990-09-24
Abstract
Abstract Insert body for contact tower for fluids and gases comprising honeycombed channels separated by walls formed with recesses for cross flow of fluid or gaseous streams.
Inventors
- 👤 F Streck
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 06:58
CPC Classifications
F; F28; F28F; F28F25/00; F28F25/02; F28F25/08; F28F25/085; B; B01; B01J; B01J19/00; B01J19/32; B01J2219/00; B01J2219/32; B01J2219/322; B01J2219/32296; B01J2219/324; B01J2219/32408; B01J2219/32458; B01J2219/32483; Y; Y10; Y10S; Y10S261/00; Y10S261/72
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
39 words
An insert for treating fluids with gases comprising an insert body formed of honeycombed cells and opposing spaced wall means extending longitudinally from and integral with the cells to define recesses therebetween to permit cross-current flow in the recesses.
Claim 2
Dependent Claim
39 words
An insert for treating fluids with gases comprising an insert body formed of honeycombed cells and opposing spaced wall means extending longitudinally from and integral with the cells to define recesses therebetween to permit cross-current flow in the recesses.
Claim 3
Dependent Claim
33 words
An insert as defined in claim 1 wherein the cells are formed with double walls integral with the wall means, with the wall means including a double wall portion defining a Y cross-section.
Claim 4
Dependent Claim
23 words
An insert as claimed in claim 1 in which at least two insert bodies are interconnected in side by side and/or superposed relation.
Claim 5
Dependent Claim
40 words
An insert as claimed in claim 1 in which the insertion bodies are formed of a material selected from the group consisting of cellulose, paper, metal foil, plastic film, laminate, and other sheet stock impregnated or coated with synthetic resin.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-04-02 | 1976-10-02 | 1977-04-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-04-02 | 1980-10-02 | 1981-04-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-04-02 | 1984-10-02 | 1985-04-03 | $7700.00 | Window Closed / Lapsed |