Patent US3589438A successfully refreshed from Google Patents.
US3589438A
Expired / Lapsed
US
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Spacer grid for heat exchange elements with eddy diffusion promotion means
Assignee: United Kingdom Atomic Energy Authority
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Filing: 1969-04-18
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Granted: 1971-06-29
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Expires: 1989-04-18
Abstract
Abstract A spacer grid of cellular form for an assembly of elongate heat exchange elements has projections in each cell for locating the elements. The cell defining walls of the grid have irregular edges on one side of the grid for promoting eddy diffusion in coolant passing through the grid. The irregular edges may be formed by sections defined by slits or incisions in the edges and deformed out of the planes of the cell-defining grid walls.
Inventors
- 👤 Colin Boorman
- 👤 Colin Betts
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 21:45
CPC Classifications
G; G21; G21C; G21C3/00; G21C3/30; G21C3/32; G21C3/34; G21C3/356; G21C3/3563; F; F28; F28F; F28F9/00; F28F9/007; F28F9/013; F28F9/0135; F28F9/24; G21C3/322; Y; Y02; Y02E; Y02E30/00; Y02E30/30
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
109 words
A spacer grid for an assembly of elongate heat exchange elements clustered in spaced array with individual axes parallel, the grid having cells bounded by joined strips within a peripheral frame, each cell having projections which are adapted to engage, and thereby locate, an elongate heat exchange element extending through the cell, the grid having an irregular edge on one face side for promoting eddy diffusion in coolant passing through the grid, said irregular edge comprising side-by-side sections defined by slits extending from one edge of the joined strips and said sections being deformed out of the plane of said face side of the grid alternately in opposite directions.
Claim 2
Dependent Claim
109 words
A spacer grid for an assembly of elongate heat exchange elements clustered in spaced array with individual axes parallel, the grid having cells bounded by joined strips within a peripheral frame, each cell having projections which are adapted to engage, and thereby locate, an elongate heat exchange element extending through the cell, the grid having an irregular edge on one face side for promoting eddy diffusion in coolant passing through the grid, said irregular edge comprising side-by-side sections defined by slits extending from one edge of the joined strips and said sections being deformed out of the plane of said face side of the grid alternately in opposite directions.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-06-28 | 1974-12-28 | 1975-06-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-06-28 | 1978-12-28 | 1979-06-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-06-28 | 1982-12-28 | 1983-06-29 | $7700.00 | Window Closed / Lapsed |