US3147126A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Preparation of cement composition
Assignee: Ohio Brass Co
•
Filing: 1962-03-19
•
Granted: 1964-09-01
•
Expires: 1982-03-19
Abstract
No abstract record available.
Inventors
- 👤 William J Smothers
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 20:15
CPC Classifications
C; C04; C04B; C04B18/00; C04B18/02; C04B18/023
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
126 words
THE METHOD OF PRODUCING AND USING A CEMENT WHICH INCLUDES FIRING AT SUBSTANTIALLY 1100* TO 1150*C., A MIXTURE OF (1) SUBSTANTIALLY 2.5 TO 7.5 PARTS (BY WEIGHT) OF LIME WITH (2) 100 PARTS OF BALL CLAY OF THE CLASS CONSISTING OF HANOVER CLAY AND ENGLISH BALL CLAY AND (3) SUFFICIENT WATER TO AT LEAST DAMPEN THE MIXTURE, AND ON SUCH FIRING OBTAINING A DENSE, STRONG PRODUCT, COOLING THE FIRED PRODUCT AND THEN CRUSHING THE SAME AND SEPARATING AGGREGATE OF SUBSTANTIALLY -16 TO +60 MESH AND MIXING (A) 35 TO 50 PARTS (BY WEIGHT) OF SAID AGGREGATE WITH (B) 65 TO 50 PARTS OF PORTLAND CEMENT AND (C) WATER IN NO SUBSTANTIAL EXCESS OVER THE MINIMUM AMOUNT REQUIRED FOR WORKING THE CEMENT, AND THEREAFTER CURING THE CEMENT.
Claim 2
Independent Claim
126 words
THE METHOD OF PRODUCING AND USING A CEMENT WHICH INCLUDES FIRING AT SUBSTANTIALLY 1100* TO 1150*C., A MIXTURE OF (1) SUBSTANTIALLY 2.5 TO 7.5 PARTS (BY WEIGHT) OF LIME WITH (2) 100 PARTS OF BALL CLAY OF THE CLASS CONSISTING OF HANOVER CLAY AND ENGLISH BALL CLAY AND (3) SUFFICIENT WATER TO AT LEAST DAMPEN THE MIXTURE, AND ON SUCH FIRING OBTAINING A DENSE, STRONG PRODUCT, COOLING THE FIRED PRODUCT AND THEN CRUSHING THE SAME AND SEPARATING AGGREGATE OF SUBSTANTIALLY -16 TO +60 MESH AND MIXING (A) 35 TO 50 PARTS (BY WEIGHT) OF SAID AGGREGATE WITH (B) 65 TO 50 PARTS OF PORTLAND CEMENT AND (C) WATER IN NO SUBSTANTIAL EXCESS OVER THE MINIMUM AMOUNT REQUIRED FOR WORKING THE CEMENT, AND THEREAFTER CURING THE CEMENT.
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) | 1967-09-01 | 1968-03-02 | 1968-09-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-09-01 | 1972-03-02 | 1972-09-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-09-01 | 1976-03-02 | 1976-09-01 | $7700.00 | Window Closed / Lapsed |