US3157735A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Metallic particle compositions for mechanically joined electrical conductors
Assignee: Alcoa Corp
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Filing: 1961-06-27
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Granted: 1964-11-17
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Expires: 1981-06-27
Abstract
No abstract record available.
Inventors
- 👤 Philip T Stroup
- 👤 Jay W Artman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 21:03
CPC Classifications
H; H01; H01R; H01R4/00; H01R4/26; H01R4/28; H01R4/30; H01R4/304; H01R4/34
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
138 words
METALLIC PARTICLES FOR DISPOSITION BETWEEN CONTACTING INTERFACES OF ELECTRICAL CONDUCTORS IN A PRESSURE-RETRAINED JOINT THEREBETWEEN, WHICH PARTICLES SERVE TO REDUCE INITIAL AND EXTENDED ELECTRICAL CONTACT RESISTANCE OF THE JOINT, SAID PARTICLES BEING FRANGIBLE AND IRREGULAR IN SHAPE AND CONSISTING OF AT LEAST 74 PERCENT BY WEIGHT OF AT LEAST ONE INTERMETALLIC PHASE, SAID INTERMETALLIC PHASE CONSISTING ESSENTIALLY OF ALUMINUM AND AT LEAST ONE METAL COMBINED THEREWITH BY AN ATOMIC BOND RANGING FROM METALLIC TO IONIC IN NATURE AND THE BALANCE OF SAID COMPOSITION OF SAID PARTICLES BEING COMPOSED OF UP TO 26 PERCENT BY WEIGHT OF AT LEAST ONE ELEMENT PRESENT IN THE INTERMETALLIC PHASE IN EXCESS OF THAT REQUIRED TO FORM THE PHASE, AND SAID PARTICLES EXHIBITING A TYLER STANDARD SCREEN SIEVE PARTICLE SIZE RANGE BETWEEN 28 TO 235 AND A MINIMUM VICKERS MICROHARDNESS NUMBER OF 240.
Claim 2
Dependent Claim
138 words
METALLIC PARTICLES FOR DISPOSITION BETWEEN CONTACTING INTERFACES OF ELECTRICAL CONDUCTORS IN A PRESSURE-RETRAINED JOINT THEREBETWEEN, WHICH PARTICLES SERVE TO REDUCE INITIAL AND EXTENDED ELECTRICAL CONTACT RESISTANCE OF THE JOINT, SAID PARTICLES BEING FRANGIBLE AND IRREGULAR IN SHAPE AND CONSISTING OF AT LEAST 74 PERCENT BY WEIGHT OF AT LEAST ONE INTERMETALLIC PHASE, SAID INTERMETALLIC PHASE CONSISTING ESSENTIALLY OF ALUMINUM AND AT LEAST ONE METAL COMBINED THEREWITH BY AN ATOMIC BOND RANGING FROM METALLIC TO IONIC IN NATURE AND THE BALANCE OF SAID COMPOSITION OF SAID PARTICLES BEING COMPOSED OF UP TO 26 PERCENT BY WEIGHT OF AT LEAST ONE ELEMENT PRESENT IN THE INTERMETALLIC PHASE IN EXCESS OF THAT REQUIRED TO FORM THE PHASE, AND SAID PARTICLES EXHIBITING A TYLER STANDARD SCREEN SIEVE PARTICLE SIZE RANGE BETWEEN 28 TO 235 AND A MINIMUM VICKERS MICROHARDNESS NUMBER OF 240.
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) | 1967-11-17 | 1968-05-18 | 1968-11-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-11-17 | 1972-05-18 | 1972-11-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-11-17 | 1976-05-18 | 1976-11-17 | $7700.00 | Window Closed / Lapsed |