US3141193A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for molding granulated plastic material
Assignee: Aerojet Rocketdyne Holdings Inc
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Filing: 1962-03-16
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Granted: 1964-07-21
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Expires: 1982-03-16
Abstract
No abstract record available.
Inventors
- 👤 Charles O Slemmons
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 01:31
CPC Classifications
B; B29; B29C; B29C43/00; Y; Y10; Y10S; Y10S425/00; Y10S425/039; Y10S425/20; Y10S425/201
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
176 words
APPARATUS FOR FORMING A DENSE, CONSOLIDATED ANNULAR BODY FORM GRANULATED VINYL PLASTIC COMPRISING IN COMBINATION: (A) A FRAME ESTABLISHING LATERALLY DISPOSED LOADING, PRESSING AND UNLOADING STATIONS; (B) A HEATING OVEN MOUNTED ON SAID FRAME ABOVE SAID LOADING STATION TO HEAT GRANULATED PLASTIC THEREIN; (C) AT LEAST ONE CARRIAGE MOUNTED ON SAID FRAME FOR MOVEMENT BETWEEN SAID STATIONS; (D) A MOLD HAVING AN ANNULAR CAVITY THEREIN SUPPORTED ON SAID CARRIAGE; (E) MEANS AT SAID LOADING STATION FOR LOADING SAID MOLD WITH HEATED GRANULATED PLASTIC FROM SAID OVEN, SAID MEANS INCLUDING A PLURALITY OF TAMPERS DISPOSABLE IN THE CAVITY OF SAID MOLD FOR TAMPING THE GRANULATED PLASTIC AS IT IS LOADED INTO SAID MOLD; (F) MEANS FOR MOVING SAID CARRIAGE AND SAID MOLD BETWEEN SAID STATIONS; (G) AN ANNULAR PRESSING MEMBER MOUNTED ON SAID FRAME ABOVE SAID PRESSING STATION AND DISPOSABLE IN THE CAVITY OF SAID MOLD TO PRESS THE TAMPED GRANULATED PLASTIC TO FORM A DENSE, CONSOLIDATED BODY THEREIN; (H) AND MEANS AT SAID UNLOADING STATION FOR REMOVING THE FORMED BODY OF VINYL PLASTIC FROM SAID MOLD.
Claim 2
Dependent Claim
176 words
APPARATUS FOR FORMING A DENSE, CONSOLIDATED ANNULAR BODY FORM GRANULATED VINYL PLASTIC COMPRISING IN COMBINATION: (A) A FRAME ESTABLISHING LATERALLY DISPOSED LOADING, PRESSING AND UNLOADING STATIONS; (B) A HEATING OVEN MOUNTED ON SAID FRAME ABOVE SAID LOADING STATION TO HEAT GRANULATED PLASTIC THEREIN; (C) AT LEAST ONE CARRIAGE MOUNTED ON SAID FRAME FOR MOVEMENT BETWEEN SAID STATIONS; (D) A MOLD HAVING AN ANNULAR CAVITY THEREIN SUPPORTED ON SAID CARRIAGE; (E) MEANS AT SAID LOADING STATION FOR LOADING SAID MOLD WITH HEATED GRANULATED PLASTIC FROM SAID OVEN, SAID MEANS INCLUDING A PLURALITY OF TAMPERS DISPOSABLE IN THE CAVITY OF SAID MOLD FOR TAMPING THE GRANULATED PLASTIC AS IT IS LOADED INTO SAID MOLD; (F) MEANS FOR MOVING SAID CARRIAGE AND SAID MOLD BETWEEN SAID STATIONS; (G) AN ANNULAR PRESSING MEMBER MOUNTED ON SAID FRAME ABOVE SAID PRESSING STATION AND DISPOSABLE IN THE CAVITY OF SAID MOLD TO PRESS THE TAMPED GRANULATED PLASTIC TO FORM A DENSE, CONSOLIDATED BODY THEREIN; (H) AND MEANS AT SAID UNLOADING STATION FOR REMOVING THE FORMED BODY OF VINYL PLASTIC FROM SAID MOLD.
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) | 1967-07-21 | 1968-01-20 | 1968-07-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-07-21 | 1972-01-20 | 1972-07-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-07-21 | 1976-01-20 | 1976-07-21 | $7700.00 | Window Closed / Lapsed |