US2908568A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Methods of making nickel phosphorous alloys
Assignee: General American Transportation Corp
•
Filing: 1955-06-10
•
Granted: 1959-10-13
•
Expires: 1975-06-10
Abstract
No abstract record available.
Inventors
- 👤 William J Crehan
- 👤 Walter F Klouse
- 👤 Talmey Paul
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 21:15
CPC Classifications
C; C23; C23C; C23C28/00; B; B22; B22F; B22F9/00; B22F9/16; B22F9/18; B22F9/24; C22; C22C; C22C19/00; C23C28/02; C23C28/021; C23C28/026; C23C28/027; C25; C25B; C25B11/00; C25B11/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
134 words
THE METHOD OF MAKING A NICKEL-PHOSPHORUS ALLOY FROM A "SPENT" CHEMICAL PLATING BATH CONTAINING NICKEL CATIONS AND HYPOPHOSPHITE ANIONS AND PHOSPHITE ANIONS; WHICH METHOD COMPRISES TRAEATING SAID "SPENT" PLATING BATH TO INDUCE "RANDOM DECOMPOSITION" THEREOF, WHEREBY THE RESIDUE OF SAID PLATING BATH COMPRISES A LIQUID HAVING SUSPENDED THEREIN A METALLIC PRECIPITATE CONTAINING ABOUT 88 TO 94% NICKEL AND 6 TO 12% PHOSPHORUS BY WEIGHT, SEPARATING SAID METALLIC PRECIPITATE FROM SAID LIQUID, AND HEATING SAID SEPARAARED METALLIC PRECIPITATE TO A TEMPERATURE SUFFICIENTLY HIGH TO MELT THE SAME, WHEREBY THE NICKEL AND PHOSPHORUS CONSTITUENTS OF SAID MELT ARE ALLOYED UPON SUBSEQUENT COOLING AND SOLIDIFYING THEREOF, SAID ALLOY BEING CHARACTERIZED BY AN EUTECTIC COMPOSITION COMPRISING NICKEL AND PHOSPHORUS CONSTITUENTS CONTAINING ABOUT 89% NICKEL AND 11% PHOSPHORUS BY WEIGHT AND HAVING AN EUTECTIC TEMPERATURE OF ABOUT 880* C.
Claim 2
Independent Claim
134 words
THE METHOD OF MAKING A NICKEL-PHOSPHORUS ALLOY FROM A "SPENT" CHEMICAL PLATING BATH CONTAINING NICKEL CATIONS AND HYPOPHOSPHITE ANIONS AND PHOSPHITE ANIONS; WHICH METHOD COMPRISES TRAEATING SAID "SPENT" PLATING BATH TO INDUCE "RANDOM DECOMPOSITION" THEREOF, WHEREBY THE RESIDUE OF SAID PLATING BATH COMPRISES A LIQUID HAVING SUSPENDED THEREIN A METALLIC PRECIPITATE CONTAINING ABOUT 88 TO 94% NICKEL AND 6 TO 12% PHOSPHORUS BY WEIGHT, SEPARATING SAID METALLIC PRECIPITATE FROM SAID LIQUID, AND HEATING SAID SEPARAARED METALLIC PRECIPITATE TO A TEMPERATURE SUFFICIENTLY HIGH TO MELT THE SAME, WHEREBY THE NICKEL AND PHOSPHORUS CONSTITUENTS OF SAID MELT ARE ALLOYED UPON SUBSEQUENT COOLING AND SOLIDIFYING THEREOF, SAID ALLOY BEING CHARACTERIZED BY AN EUTECTIC COMPOSITION COMPRISING NICKEL AND PHOSPHORUS CONSTITUENTS CONTAINING ABOUT 89% NICKEL AND 11% PHOSPHORUS BY WEIGHT AND HAVING AN EUTECTIC TEMPERATURE OF ABOUT 880* C.
References Cited (Backward Citations)
US225977A
Cited
US2147407A
Cited
US2082225A
Cited
US2074848A
Cited
US2156306A
Cited
US2072576A
Cited
US2160559A
Cited
US2159805A
Cited
US2288656A
Cited
US2255978A
Cited
US2200742A
Cited
US2658842A
Cited
US2663651A
Cited
US2717218A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-10-12 | 1963-04-13 | 1963-10-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-10-12 | 1967-04-13 | 1967-10-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-10-12 | 1971-04-13 | 1971-10-13 | $7700.00 | Window Closed / Lapsed |