US3228064A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Extruding or compounding machine for plastic materials
Assignee: Cyril Adams & Co Ltd
•
Filing: 1963-05-22
•
Granted: 1966-01-11
•
Expires: 1983-05-22
Abstract
No abstract record available.
Inventors
- 👤 Plummer Henry James
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:26
CPC Classifications
B; B29; B29C; B29C48/00; B29C48/25; B29C48/78; B29C48/80; B29C48/84; B29C48/36; B29C48/395; B29C48/50; B29C48/68; B29C48/793; B29C48/797; B29C48/83; B29C48/832; B29C48/85; B29C48/875; B29C48/03; B29C48/09
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
96 words
IN AN EXTRUDING MACHINE FOR CONTINUOUS EXTRUSION OF PLASTIC MATERIALS, THE COMBINATION OF A SUPPORTING STRUCTURE, AN EXTRUSION BARREL MOUNTED ON SAID SUPPORTING STRUCTURE AND HAVING A CONICAL INTERIOR, A CONICAL FEED SCREW ROTATABLE WITHIN SAID BARREL AND SUPPORTED BY SAID SUPPORTING STRUCTURE, PLASTIC MATERIAL FEED MEANS MOUNTED ON SAID SUPPORTING STRUCTURE AND OPENING INTO SAID EXTRUSION BARREL, AND MEANS OPERATIVELY ASSOCIATED WITH SAID BARREL FOR ENABLING SAID BARRELING TO BE SWUND CLEAR TO SAID FEED SCREW TO EXPOSE THE ENTIRE WORKING SURFACE OF SAID FEED SCREW WITHOUT COMPLETELY DETACHING SAID BARREL FROM SAID SUPPORTING STRUCTURE.
Claim 2
Dependent Claim
96 words
IN AN EXTRUDING MACHINE FOR CONTINUOUS EXTRUSION OF PLASTIC MATERIALS, THE COMBINATION OF A SUPPORTING STRUCTURE, AN EXTRUSION BARREL MOUNTED ON SAID SUPPORTING STRUCTURE AND HAVING A CONICAL INTERIOR, A CONICAL FEED SCREW ROTATABLE WITHIN SAID BARREL AND SUPPORTED BY SAID SUPPORTING STRUCTURE, PLASTIC MATERIAL FEED MEANS MOUNTED ON SAID SUPPORTING STRUCTURE AND OPENING INTO SAID EXTRUSION BARREL, AND MEANS OPERATIVELY ASSOCIATED WITH SAID BARREL FOR ENABLING SAID BARRELING TO BE SWUND CLEAR TO SAID FEED SCREW TO EXPOSE THE ENTIRE WORKING SURFACE OF SAID FEED SCREW WITHOUT COMPLETELY DETACHING SAID BARREL FROM SAID SUPPORTING STRUCTURE.
References Cited (Backward Citations)
US72393A
Cited
US148211A
Cited
US591520A
Cited
US1466509A
Cited
US1777294A
Cited
US2061407A
Cited
US2461630A
Cited
US2626133A
Cited
US2680880A
Cited
CH341307A
Cited
US3102717A
Cited
GB828144A
Cited
US2970817A
Cited
US3001233A
Cited
US3044391A
Cited
US3051990A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-01-10 | 1969-07-12 | 1970-01-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-01-10 | 1973-07-12 | 1974-01-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-01-10 | 1977-07-12 | 1978-01-11 | $7700.00 | Window Closed / Lapsed |