US3255279A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flashless encapsulated sphere manufacture
Assignee: Airco Inc
•
Filing: 1964-10-13
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Granted: 1966-06-07
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Expires: 1984-10-13
Abstract
No abstract record available.
Inventors
- 👤 Mark J Smith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 16:32
CPC Classifications
B; B30; B30B; B30B11/00; B30B11/34; B30B11/02; B30B11/04; B30B11/06; G; G21; G21C; G21C21/00; G21C21/02; Y; Y02; Y02E; Y02E30/00; Y02E30/30
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
148 words
THE METHOD OF MAKING A SPHERE IN A DIE HAVING A RELATIVELY FIXED PORTION AND A PLUNGER MOVABLE TOWARD AND FROM THE RELATIVELY FIXED PORTION, WHICH METHOD COMPRISES CONFINING A MASS OF MATERIAL IN THE DIE WITH THE MATERIAL CONFINED TO A LOWER HEMISPHERE AND A PORTION OF AN UPPER HEMISPHERE ABOVE THE EQUATOR BY CONTACT WITH THE RELATIVELY FIXED PORTION OF THE DIE, COMPRESSING THE MASS TO A FINAL SHAPE BY PRESUSR OF THE MOVABLE PORTION OF THE DIE APPLIED OVER A SPERICAL AREA EQUAL TO THE REMAINING PORTION OF THE UPPER HEMISPHERE WHILE BRINGING THE MOVABLE PORTION OF THE DIE INTO POSITION TO REGISTER WITH THE PORTION OF THE UPPER HEMISPHERE THAT IS CONFINED BY THE RELATIVELY FIXED PORTION OF THE DIE, AND THEN SEPARATING PARTS OF THE DIE AT A LOCATION OF A FULL DIAMETER OF THE SPHERE AND REMOVING THE SPHERE FROM THE DIE.
Claim 2
Independent Claim
148 words
THE METHOD OF MAKING A SPHERE IN A DIE HAVING A RELATIVELY FIXED PORTION AND A PLUNGER MOVABLE TOWARD AND FROM THE RELATIVELY FIXED PORTION, WHICH METHOD COMPRISES CONFINING A MASS OF MATERIAL IN THE DIE WITH THE MATERIAL CONFINED TO A LOWER HEMISPHERE AND A PORTION OF AN UPPER HEMISPHERE ABOVE THE EQUATOR BY CONTACT WITH THE RELATIVELY FIXED PORTION OF THE DIE, COMPRESSING THE MASS TO A FINAL SHAPE BY PRESUSR OF THE MOVABLE PORTION OF THE DIE APPLIED OVER A SPERICAL AREA EQUAL TO THE REMAINING PORTION OF THE UPPER HEMISPHERE WHILE BRINGING THE MOVABLE PORTION OF THE DIE INTO POSITION TO REGISTER WITH THE PORTION OF THE UPPER HEMISPHERE THAT IS CONFINED BY THE RELATIVELY FIXED PORTION OF THE DIE, AND THEN SEPARATING PARTS OF THE DIE AT A LOCATION OF A FULL DIAMETER OF THE SPHERE AND REMOVING THE SPHERE FROM THE DIE.
References Cited (Backward Citations)
US2907705A
Cited
US2938791A
Cited
US3166614A
Cited
US3020589A
Cited
US3098261A
Cited
US3122595A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-06-06 | 1969-12-06 | 1970-06-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-06-06 | 1973-12-06 | 1974-06-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-06-06 | 1977-12-06 | 1978-06-07 | $7700.00 | Window Closed / Lapsed |