US3573557A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Printed circuit provided with cooling means
Assignee: United States Department of the Army
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Filing: 1970-02-06
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Granted: 1971-04-06
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Expires: 1990-02-06
Abstract
Abstract A printed circuit having a board disposed for the support of disposed components and provided with channels extending from a central point to outlet holes in the board at positions of the components. A plate is secured to the board to enclose the channels and provide conduit communication between the outlet holes and a coolant storage bottle. The size of the ports and the width of the channels control the amount of coolant flowing from the bottle to the components for augmenting their current carrying capacity.
Inventors
- 👤 Daniel W Riggs
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 06:36
CPC Classifications
H; H10; H10W; H10W40/00; H10W40/40; H10W40/47
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
88 words
In combination a printed circuit board with components secured to a surface thereon; said board having channels in the opposite surface from a point to said components and provided with outlet ports adjacent said components; a plate secured to said board to provide conduits through said channels; a coolant supply device secured to said board in communication with said channels for supplying a coolant to components to augment the current carrying capacity thereof; and a valve in said device to control the flow of coolant to the channels.
Claim 2
Dependent Claim
88 words
In combination a printed circuit board with components secured to a surface thereon; said board having channels in the opposite surface from a point to said components and provided with outlet ports adjacent said components; a plate secured to said board to provide conduits through said channels; a coolant supply device secured to said board in communication with said channels for supplying a coolant to components to augment the current carrying capacity thereof; and a valve in said device to control the flow of coolant to the channels.
Claim 3
Dependent Claim
19 words
A printed circuit as in claim 1 in which said coolant supply device comprises a bottle containing the coolant.
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) | 1974-04-05 | 1974-10-05 | 1975-04-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-04-05 | 1978-10-05 | 1979-04-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-04-05 | 1982-10-05 | 1983-04-06 | $7700.00 | Window Closed / Lapsed |