Patent US3123466A successfully refreshed from Google Patents.
US3123466A
Expired / Lapsed
US
⏱️ 0.0 years remaining
crampton
Assignee: —
•
Filing: —
•
Granted: 1964-03-03
•
Expires: 1981-03-03
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 18:18
CPC Classifications
C; C22; C22B; C22B7/00; C22B7/001; C22B7/003; Y; Y02; Y02P; Y02P10/00; Y02P10/20; Y10; Y10S; Y10S266/00; Y10S266/901
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
148 words
THE METHOD OF MELTING FINE BRASS CHIP SCRAP WHICH COMPRISES THE STEPS OF MAINTAINING A MELT OF BRASS IN THE CRUCIBLE OF A FURNACE, PROVIDING ACROSS THE SURFACE OF SAID MELT A CARBONACEOUS BLANKET CONSTITUTING A ZONE OF HIGHLY REDUCING CHARACTER, SAID BLANKET COMPRISING CARBONACEOUS PARTICLES SUFFICIENTLY FINELY DIVIDED TO IMPART AT THE OPERATING TEMPERATURE OF THE FURNACE A FLUID-LIKE CONSISTENCY TO SAID BLANKET, SAID BLANKET HAVING A THICKNESS OF AT LEAST ABOUT 4 INCHES ABOVE THE SURFACE OF SAID MELT, INTRODUCING THE BRASS CHIPS INTO THE FURNACE BY DISTRIBUTING THEM SUBSTANTIALLY UNIFORMLY ACROSS THE SURFACE OF SAID BLANKET WHILE THE CHIPS ARE AT A TEMPERATURE BELOW THAT AT WHICH SUBSTANTIAL SURFACE OXIDATION CAN OCCUR, PASSING THE CHIPS SO INTRODUCED THROUGH SAID BLANKET TO PROMOTE INTIMATE CONTACT THEREWITH, AND WITHDRAWING METAL FROM SAID CRUCIBLE AT A RATE SUFFICIENT TO MAINTAIN THE SURFACE LEVEL OF SAID MELT SUBSTANTIALLY CONSTANT.
Claim 2
Independent Claim
148 words
THE METHOD OF MELTING FINE BRASS CHIP SCRAP WHICH COMPRISES THE STEPS OF MAINTAINING A MELT OF BRASS IN THE CRUCIBLE OF A FURNACE, PROVIDING ACROSS THE SURFACE OF SAID MELT A CARBONACEOUS BLANKET CONSTITUTING A ZONE OF HIGHLY REDUCING CHARACTER, SAID BLANKET COMPRISING CARBONACEOUS PARTICLES SUFFICIENTLY FINELY DIVIDED TO IMPART AT THE OPERATING TEMPERATURE OF THE FURNACE A FLUID-LIKE CONSISTENCY TO SAID BLANKET, SAID BLANKET HAVING A THICKNESS OF AT LEAST ABOUT 4 INCHES ABOVE THE SURFACE OF SAID MELT, INTRODUCING THE BRASS CHIPS INTO THE FURNACE BY DISTRIBUTING THEM SUBSTANTIALLY UNIFORMLY ACROSS THE SURFACE OF SAID BLANKET WHILE THE CHIPS ARE AT A TEMPERATURE BELOW THAT AT WHICH SUBSTANTIAL SURFACE OXIDATION CAN OCCUR, PASSING THE CHIPS SO INTRODUCED THROUGH SAID BLANKET TO PROMOTE INTIMATE CONTACT THEREWITH, AND WITHDRAWING METAL FROM SAID CRUCIBLE AT A RATE SUFFICIENT TO MAINTAIN THE SURFACE LEVEL OF SAID MELT SUBSTANTIALLY CONSTANT.
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) | 1967-03-03 | 1967-09-02 | 1968-03-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-03-03 | 1971-09-02 | 1972-03-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-03-03 | 1975-09-02 | 1976-03-03 | $7700.00 | Window Closed / Lapsed |