US3209414A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Press head for sand molds
Assignee: TACCONE CORP
•
Filing: 1962-07-02
•
Granted: 1965-10-05
•
Expires: 1982-07-02
Abstract
No abstract record available.
Inventors
- 👤 Russell W Taccone
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 15:07
CPC Classifications
B; B22; B22C; B22C15/00; B22C15/10; B22C15/12
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
118 words
A HEAD ADAPTED TO EXERT A PRESSURED ON MATERIAL, SAID HEAD HAVING A RIGID FRAME DEFINING THE RIM OF AN OPEN CAVITY THEREIN, A FIRST DIAPHRAGM MADE OF A SHEET OF FLEXIBLE MATERIAL HAVING ITS EDGES ATTACHED TO SAID FRAME, A PISTON RECIPROCABLY MOUNTED IN SAID HEAD, SAID PISTON HAVING MEANS COEXTENSIVE WITH SUBSTANTIALLLY OF THE AREA OF SAID FIRST DIAPHRAGM ENGAGING SAID FIRST DIAPHRAGM, A SECOND DIAPHRAGM ON THE OPPOSITE SIDE OF SAID HEAD FROM SAID FIRST DIAPHRAGM, SAID SECOND DIAPHRAGM HAVING ITS PERIPHERAL EDGES ATTACHED TO SAID HEAD, SAID SECOND DIAPHRAGM BEING SUBSTANTIALLY COEXTENSIVE WITH SAID PISTON, AND FLUID MEANS TO URGE SAID SECOND DIAPHRAGM DOWNWARD TO FORCE SAID HEAD INTO ENGAGEMENT WITH SAID FIRT DIAPHRAGM.
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) | 1968-10-04 | 1969-04-05 | 1969-10-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-10-04 | 1973-04-05 | 1973-10-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-10-04 | 1977-04-05 | 1977-10-05 | $7700.00 | Window Closed / Lapsed |