Patent US3761067A successfully refreshed from Google Patents.
US3761067A
Expired / Lapsed
US
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Large-size metal-framed tower
Assignee: IPARI EPUELETTERVEZOE VALLALAT
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Filing: 1971-04-15
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Granted: 1973-09-25
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Expires: 1991-04-15
Abstract
Abstract A large size metal frame cooling tower of generally upright cylindrical configuration has an outer surface of metal frame work or panels. At least one stiffening ring is provided either on the inside or the outside of the cylindrical structure, or both. A crane may orbit the tower on one of the stiffening ring structures.
Inventors
- 👤 I Marosi
- 👤 F Volgyes
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 10:20
CPC Classifications
E; E04; E04H; E04H5/00; E04H5/10; E04H5/12; Y; Y10; Y10S; Y10S261/00; Y10S261/11
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
82 words
A large size metal frame cooling tower in the form of a hollow upright cylinder of metal framework, at least one stiffening ring concentric with the tower, and a plurality of structural elements extending from the stiffening ring diagonally downwardly and connected to the tower at a level lower than the stiffening ring, the space along the tower above and below at least one said ring being free said ring having a horizontal guide on its upper surface for an erecting crane.
Claim 2
Dependent Claim
82 words
A large size metal frame cooling tower in the form of a hollow upright cylinder of metal framework, at least one stiffening ring concentric with the tower, and a plurality of structural elements extending from the stiffening ring diagonally downwardly and connected to the tower at a level lower than the stiffening ring, the space along the tower above and below at least one said ring being free said ring having a horizontal guide on its upper surface for an erecting crane.
Claim 3
Dependent Claim
22 words
A tower as claimed in claim 1, and structural elements extending diagonally upwardly from the stiffening ring and secured to the tower.
Claim 4
Dependent Claim
24 words
A cooling tower as claimed in claim 1, there being a plurality of said rings vertically spaced apart along the height of the tower.
Claim 5
Dependent Claim
26 words
A tower as claimed in claim 3, one of said rings being disposed inside the tower and another of said rings being disposed outside the tower.
Claim 6
Dependent Claim
45 words
A tower as claimed in claim 4, said another ring being disposed lower than said one ring, and structural framework extending diagonally outwardly and downwardly from said another ring into supporting engagement with the ground at a distance outside the lower end of said tower.
References Cited (Backward Citations)
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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) | 1976-09-24 | 1977-03-26 | 1977-09-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-09-24 | 1981-03-26 | 1981-09-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-09-24 | 1985-03-26 | 1985-09-25 | $7700.00 | Window Closed / Lapsed |