US3281898A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Preset nozzle retainer for an injection molding machine
Assignee: Farrel Corp
•
Filing: 1963-10-28
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Granted: 1966-11-01
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Expires: 1983-10-28
Abstract
No abstract record available.
Inventors
- 👤 Francis E Compton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 13:46
CPC Classifications
B; B29; B29C; B29C45/00; B29C45/17; B29C45/20; B29C45/26; B29C45/27; B29C45/30; B29K; B29K2021/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
72 words
IN AN INJECTION MOLDING MACHINE HAVING AN INJECTION CYLINDER PARTIALLY CLOSED AT ONE END BY A REMOVABLE INJECTION NOZZLE, AND MEANS FOR RETAINING SAID NOZZLE COMPRISING A THREADED CYLINDRICAL CHAMBER AT THE END OF THE INJECTION CYLINDER POSITIONED ABOUT THE INJECTION NOZZLE, A NOZZLE RETAINING ASSEMBLY THREADED INTO SAID CHAMBER AND ABOUT THE NOZZLE BEHIND A SHOULDER THEREON, SAID RETAINING ASSEMBLY HAVING HIGH PRESSURE MEANS FOR APPLYING THRUST AGAINST SAID NOZZLE SHOULDER.
Claim 2
Dependent Claim
72 words
IN AN INJECTION MOLDING MACHINE HAVING AN INJECTION CYLINDER PARTIALLY CLOSED AT ONE END BY A REMOVABLE INJECTION NOZZLE, AND MEANS FOR RETAINING SAID NOZZLE COMPRISING A THREADED CYLINDRICAL CHAMBER AT THE END OF THE INJECTION CYLINDER POSITIONED ABOUT THE INJECTION NOZZLE, A NOZZLE RETAINING ASSEMBLY THREADED INTO SAID CHAMBER AND ABOUT THE NOZZLE BEHIND A SHOULDER THEREON, SAID RETAINING ASSEMBLY HAVING HIGH PRESSURE MEANS FOR APPLYING THRUST AGAINST SAID NOZZLE SHOULDER.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-10-31 | 1970-05-02 | 1970-11-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-10-31 | 1974-05-02 | 1974-11-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-10-31 | 1978-05-02 | 1978-11-01 | $7700.00 | Window Closed / Lapsed |