Patent US3636620A successfully refreshed from Google Patents.
US3636620A
Expired / Lapsed
US
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Porous fluid-cooled electrical conductors and method for making same
Assignee: Union Carbide Corp
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Filing: 1969-11-10
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Granted: 1972-01-25
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Expires: 1989-11-10
Abstract
Abstract Disclosed are fluid-cooled, high-current capacity electrical conductors manufactured by spirally rolling or winding porous metal sheet into a desired shape.
Inventors
- 👤 Hugh M Long
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 17:00
CPC Classifications
H; H01; H01B; H01B12/00; H01B12/16; Y; Y02; Y02E; Y02E40/00; Y02E40/60; Y10; Y10S; Y10S505/00; Y10S505/825; Y10S505/917; Y10S505/927; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/49014; Y10T29/49117
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
96 words
A method for manufacturing a porous metal, fluid-cooled, electrical conductor which comprises: a. providing electrically conductive porous metal sheet; b. spirally winding said metal sheet about itself so that at least some portions of adjacent layers are contiguous; c. metal bonding together contiguous layers of the wound metal sheet; d. joining electrically conductive end connectors to each end of the wound porous metal sheet; e. attaching fluid conduit means to each end of said wound porous metal sheet; and f. covering the outer surface of said wound porous metal sheet with an electrically nonconductive, fluid-impermeable material.
Claim 2
Independent Claim
96 words
A method for manufacturing a porous metal, fluid-cooled, electrical conductor which comprises: a. providing electrically conductive porous metal sheet; b. spirally winding said metal sheet about itself so that at least some portions of adjacent layers are contiguous; c. metal bonding together contiguous layers of the wound metal sheet; d. joining electrically conductive end connectors to each end of the wound porous metal sheet; e. attaching fluid conduit means to each end of said wound porous metal sheet; and f. covering the outer surface of said wound porous metal sheet with an electrically nonconductive, fluid-impermeable material.
Claim 3
Dependent Claim
17 words
A method as described in claim 1 wherein said metal sheet is spirally wound around a mandrel.
Claim 4
Dependent Claim
26 words
A method as described in claim 2 wherein the mandrel is removed subsequent to winding said porous metal sheet and replaced with an electrically nonconductive material.
Claim 5
Dependent Claim
24 words
A method as described in claim 1 wherein the electrically conductive porous metal sheet is cut in a desired pattern prior to step (b).
Claim 6
Dependent Claim
28 words
A method as described in claim 1 wherein step (f) comprises additionally covering the inner surface of a spirally wound hollow conductor with an electrically nonconductive, fluid-impermeable material.
Claim 7
Dependent Claim
36 words
A method as described In claim 1 wherein solder patches are bonded to said porous metal sheet prior to spiral winding and the wound sheet is thereafter heated as the metal bonding contiguous layers step (c).
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) | 1975-01-24 | 1975-07-26 | 1976-01-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-01-24 | 1979-07-26 | 1980-01-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-01-24 | 1983-07-26 | 1984-01-25 | $7700.00 | Window Closed / Lapsed |