US3267524A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fixed screw plastic injection device
Assignee: Injection Molders Supply Co Inc
•
Filing: 1963-05-29
•
Granted: 1966-08-23
•
Expires: 1983-05-29
Abstract
No abstract record available.
Inventors
- 👤 Morse Albert Reynolds
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 15:01
CPC Classifications
B; B29; B29C; B29C45/00; B29C45/17; B29C45/46; B29C45/58; B29C45/581
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
116 words
A HEATING CYLINDER FOR PLASTIC INJECTION MOLDING WHICH INCLUDES A HOUSNG MEMBER HAVING A CHARGE OPENING AND A DISCHARGE OPENING WITH A FLOW PATH HAVING A HELICAL PORTION THEREBETWEEN. ALTERNATE FLOW PATH PORTIONS IN SAID FLOW PATH INTERMEDIATE SAID HELICAL PORTION AND SAID DISCHARGE OPENIN SUCH THAT A FIRST SUBSTANTIAL QUANTITY OF FLUIDIZED PLASTIC MATERIAL MOVES RADIALLY AND THEN TOWARD SAID DISCHARGE OPENING AXIALLY IN A PASSAGE FROM ADJACENT THE END OF THE LAST TURN OF SAID HELICAL PORTION AND A SECOND SUBSTANTIALLY LESSER QUANTITY OF MATERIAL SIMULTANEOUSLY MOVES INTO A CONVERGING PASSAGE AND WIPES THE OUTER SURFACE OF THE STRUCTURE DEFINING THE AXIAL PASSAGE BEFORE JOINING THE AXIAL FLOW OF MATERIAL TOWARD SAID DISCHARGE OPENING.
Claim 2
Dependent Claim
116 words
A HEATING CYLINDER FOR PLASTIC INJECTION MOLDING WHICH INCLUDES A HOUSNG MEMBER HAVING A CHARGE OPENING AND A DISCHARGE OPENING WITH A FLOW PATH HAVING A HELICAL PORTION THEREBETWEEN. ALTERNATE FLOW PATH PORTIONS IN SAID FLOW PATH INTERMEDIATE SAID HELICAL PORTION AND SAID DISCHARGE OPENIN SUCH THAT A FIRST SUBSTANTIAL QUANTITY OF FLUIDIZED PLASTIC MATERIAL MOVES RADIALLY AND THEN TOWARD SAID DISCHARGE OPENING AXIALLY IN A PASSAGE FROM ADJACENT THE END OF THE LAST TURN OF SAID HELICAL PORTION AND A SECOND SUBSTANTIALLY LESSER QUANTITY OF MATERIAL SIMULTANEOUSLY MOVES INTO A CONVERGING PASSAGE AND WIPES THE OUTER SURFACE OF THE STRUCTURE DEFINING THE AXIAL PASSAGE BEFORE JOINING THE AXIAL FLOW OF MATERIAL TOWARD SAID DISCHARGE OPENING.
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) | 1969-08-22 | 1970-02-21 | 1970-08-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-08-22 | 1974-02-21 | 1974-08-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-08-22 | 1978-02-21 | 1978-08-23 | $7700.00 | Window Closed / Lapsed |