US2771358A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Machine elements for crushers
Assignee: Huntington Alloys Corp
•
Filing: 1954-07-16
•
Granted: 1956-11-20
•
Expires: 1974-07-16
Abstract
No abstract record available.
Inventors
- 👤 Spear Warren Mclellan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 23:31
CPC Classifications
C; C22; C22C; C22C37/00; C22C37/06; C22C37/08; B; B02; B02C; B02C23/00; B02C4/00; B02C4/28; B02C4/30; B02C4/305
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
94 words
IN A MACHINE FOR CRUSHING SOLID MATERIALS, A CRUSHING ELEMENT MADE OF CHILLED MARTENISTIC CAST IRON OF THE DEFINITE CHILL TYPE HAVING A HARD, WEAR-RESISTANT OUTER PORTION AND A TOUGH, DUCTILE INNER PORTION CONTAINING SPHEROIDAL GRAPHITE, SAID CAST IRON CONTAINING ABOUT 3.5% TO 3.8% CARBON, ABOUT 0.9% TO 1.1% SILICON, ABOUT 4.5% TO 4.8% NICKEL, ABOUT 0.5% TO 0.7% CHRONIUM, ABOUT 0.2% TO 0.6% MAGNESIUM AND A SMALL AMOUNT UP TO ABOUT 0.09% MAGNESIUM EFFECTIVE TO CONTROL THE OCCURRENCE OF GRAPHITE IN SAID CRUSHING ELEMENT IN A SPHEROIDAL FORM, AND THE BALANCE ESSENTIALLY IRON.
Claim 2
Dependent Claim
94 words
IN A MACHINE FOR CRUSHING SOLID MATERIALS, A CRUSHING ELEMENT MADE OF CHILLED MARTENISTIC CAST IRON OF THE DEFINITE CHILL TYPE HAVING A HARD, WEAR-RESISTANT OUTER PORTION AND A TOUGH, DUCTILE INNER PORTION CONTAINING SPHEROIDAL GRAPHITE, SAID CAST IRON CONTAINING ABOUT 3.5% TO 3.8% CARBON, ABOUT 0.9% TO 1.1% SILICON, ABOUT 4.5% TO 4.8% NICKEL, ABOUT 0.5% TO 0.7% CHRONIUM, ABOUT 0.2% TO 0.6% MAGNESIUM AND A SMALL AMOUNT UP TO ABOUT 0.09% MAGNESIUM EFFECTIVE TO CONTROL THE OCCURRENCE OF GRAPHITE IN SAID CRUSHING ELEMENT IN A SPHEROIDAL FORM, AND THE BALANCE ESSENTIALLY IRON.
References Cited (Backward Citations)
US2485760A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-11-20 | 1960-05-21 | 1960-11-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-11-20 | 1964-05-21 | 1964-11-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-11-20 | 1968-05-21 | 1968-11-20 | $7700.00 | Window Closed / Lapsed |