US4052491A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Modular gas and liquid contact means
Assignee: Research Cottrell Inc
•
Filing: 1976-06-25
•
Granted: 1977-10-04
•
Expires: 1996-06-25
Abstract
Abstract A modular gas and liquid contact member is formed of a plurality of extended surface sheet members with means associated with at least the peripheral margins thereof warping the sheets and maintaining the sheets in an undulated array. In a preferred form of the invention, the means for warping and maintaining the sheet members in the undulated array comprises a plurality of through bolts and spacers of varying lengths threaded on the through bolts and contacting opposed surfaces of adjacent sheet members.
Inventors
- 👤 Marcel Robert Lefevre
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 20:52
CPC Classifications
F; F28; F28F; F28F25/00; F28F25/02; F28F25/08; F28F25/087; Y; Y10; Y10S; Y10S261/00; Y10S261/11
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
120 words
In a cooling tower having an air inlet at its lower end, an air outlet at its upper end and an air passage extending between the air inlet and the air outlet, gas and liquid contact means in the air passage and liquid distribution means positioned in the air passage above the gas and liquid contact means wherein the gas and liquid contact means comprise a plurality of sheet members, a plurality of sets of spacer members at least at the peripheral margins of the sheet members maintaining the sheet members in side-by-side spaced relationship, at least two sets of the plurality of sets of spacer members having different lengths whereby the sheet members are spaced in an undulated array.
Claim 2
Dependent Claim
120 words
In a cooling tower having an air inlet at its lower end, an air outlet at its upper end and an air passage extending between the air inlet and the air outlet, gas and liquid contact means in the air passage and liquid distribution means positioned in the air passage above the gas and liquid contact means wherein the gas and liquid contact means comprise a plurality of sheet members, a plurality of sets of spacer members at least at the peripheral margins of the sheet members maintaining the sheet members in side-by-side spaced relationship, at least two sets of the plurality of sets of spacer members having different lengths whereby the sheet members are spaced in an undulated array.
Claim 3
Dependent Claim
140 words
In a cooling tower having an air inlet at its lower end, an air outlet at its upper end and an air passage extending between the air inlet and the air outlet, gas and liquid contact means in the air passage and liquid distribution means positioned in the air passage above the gas and liquid contact means wherein the gas and liquid contact means comprise a plurality of rectangular sheet members, each of said sheet members having a plurality of cooperating openings therethrough at least adjacent the peripheral margins thereof, an elongate rod through each of said sheet openings of a series of said sheets and spacer members of differing lengths received on said rods to maintain said plurality of sheets in a modular of spaced sheets and warping and maintaining the sheets of the modular in an undulated array.
Claim 4
Dependent Claim
140 words
In a cooling tower having an air inlet at its lower end, an air outlet at its upper end and an air passage extending between the air inlet and the air outlet, gas and liquid contact means in the air passage and liquid distribution means positioned in the air passage above the gas and liquid contact means wherein the gas and liquid contact means comprise a plurality of rectangular sheet members, each of said sheet members having a plurality of cooperating openings therethrough at least adjacent the peripheral margins thereof, an elongate rod through each of said sheet openings of a series of said sheets and spacer members of differing lengths received on said rods to maintain said plurality of sheets in a modular of spaced sheets and warping and maintaining the sheets of the modular in an undulated array.
Claim 5
Dependent Claim
43 words
The invention defined in claim 2 wherein each of said arrays have lengths in the order of about 10 feet, height in the order of about 4 feet, and a number of sheets to provide a modular of about 3 feet in width.
Claim 6
Dependent Claim
16 words
The invention defined in claim 3 wherein the sheets comprise a combination of cement and asbestos.
Claim 7
Dependent Claim
11 words
The invention defined in claim 3 wherein the sheets comprise plastic.
References Cited (Backward Citations)
US1674764A
Cited
US1928912A
Cited
GB571510A
Cited
GB708310A
Cited
US2759719A
Cited
US2977103A
Cited
US3116989A
Cited
US3235234A
Cited
US3272484A
Cited
US3430694A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-10-03 | 1981-04-04 | 1981-10-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-10-03 | 1985-04-04 | 1985-10-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-10-03 | 1989-04-04 | 1989-10-04 | $7700.00 | Window Closed / Lapsed |