US3171069A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Diode heat sink structure
Assignee: Udylite Corp
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Filing: 1961-10-12
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Granted: 1965-02-23
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Expires: 1981-10-12
Abstract
No abstract record available.
Inventors
- 👤 Michael A Koltuniak
- 👤 Thomas N Urquhart
- 👤 Edward J Sopcak
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 10:10
CPC Classifications
H; H10; H10W; H10W90/00; H10W40/00; H10W40/20; H10W40/22
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
161 words
AN AIR-COOLED DIODE HEAT SINK FOR DISSIPATING HEAT EVOLVED DURING THE RECTIFICATION OF ALTERNATING ELECTRIC CURRENT BY A PLURALITY OF CRYSTAL DIODES, SAID HEAT SINK COMPRISING AN INTEGRALLY CAST METALLIC STRUCTURE OF HIGH ELECTRICAL AND HEAT CONDUCTION PROPERTIES INCLUDING AN ELONGATED LONGITUDINAL WEB HAVING A PLURALITY OF BORES THERETHROUGH DISPOSED IN SPACED INTERVALS ALONG SAID WEB, A PLURALITY OF CRYSTAL DIODES REMOVABLY MOUNTED IN SAID BORES AND DISPOSED IN INTIMATE ELECTRICAL AND HEAT-CONDUCTING CONTACT WITH SAID WEB, THE SURFACES OF SAID WEB ADJACENT TO SAID CORES AGAINST WHICH SAID DIODES ARE SEATED PROVIDED WITH A SURFACE FINISH OF LESS THAN ABOUT 125 MICROINCHES, A PLURALITY OF TRANSVERSE FINS INTEGRALLY ATTACHED TO THE LONGITUDINAL SIDE EDGES OF SAID WEB AND DISPOSED IN SPACED SUBSTANTIALLY PARALLEL RELATIONSHIP, MOUNTING MEANS ON ONE END OF SAID WEB FOR MOUNTING AND ELECTRICALLY CONNECTING SAID HEAT SINK TO A BUS BAR, AND MEANS AT THE OTHER END PORTION OF SAID WEB FOR ENGAGING AN INSULATED SUPPORTING MEMBER.
Claim 2
Dependent Claim
161 words
AN AIR-COOLED DIODE HEAT SINK FOR DISSIPATING HEAT EVOLVED DURING THE RECTIFICATION OF ALTERNATING ELECTRIC CURRENT BY A PLURALITY OF CRYSTAL DIODES, SAID HEAT SINK COMPRISING AN INTEGRALLY CAST METALLIC STRUCTURE OF HIGH ELECTRICAL AND HEAT CONDUCTION PROPERTIES INCLUDING AN ELONGATED LONGITUDINAL WEB HAVING A PLURALITY OF BORES THERETHROUGH DISPOSED IN SPACED INTERVALS ALONG SAID WEB, A PLURALITY OF CRYSTAL DIODES REMOVABLY MOUNTED IN SAID BORES AND DISPOSED IN INTIMATE ELECTRICAL AND HEAT-CONDUCTING CONTACT WITH SAID WEB, THE SURFACES OF SAID WEB ADJACENT TO SAID CORES AGAINST WHICH SAID DIODES ARE SEATED PROVIDED WITH A SURFACE FINISH OF LESS THAN ABOUT 125 MICROINCHES, A PLURALITY OF TRANSVERSE FINS INTEGRALLY ATTACHED TO THE LONGITUDINAL SIDE EDGES OF SAID WEB AND DISPOSED IN SPACED SUBSTANTIALLY PARALLEL RELATIONSHIP, MOUNTING MEANS ON ONE END OF SAID WEB FOR MOUNTING AND ELECTRICALLY CONNECTING SAID HEAT SINK TO A BUS BAR, AND MEANS AT THE OTHER END PORTION OF SAID WEB FOR ENGAGING AN INSULATED SUPPORTING MEMBER.
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) | 1968-02-23 | 1968-08-24 | 1969-02-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-02-23 | 1972-08-24 | 1973-02-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-02-23 | 1976-08-24 | 1977-02-23 | $7700.00 | Window Closed / Lapsed |