US3307223A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Injection molding machine
Assignee: Individual
•
Filing: 1964-03-25
•
Granted: 1967-03-07
•
Expires: 1984-03-25
Abstract
No abstract record available.
Inventors
- 👤 Arthur W Jacobs
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 19:22
CPC Classifications
B; B29; B29C; B29C45/00; B29C45/03
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
155 words
INJECTION MOLDING APPARATUS COMPRISING A CYLINDER HAVING A FEED OPENING FOR PLASTIC MATERIAL AT ONE END AND AN INJECTION NOZZLE AT THE OTHER END FOR FLOW OF SUCH MATERIAL THERETHROUGH INTO A MOLD ENGAGED THEREBY; A FIRST RESILIENT MOUNTING FOR SAID CYLINDER FOR MOVEMENT OF SAID CYLINDER TOWARD A MOLD FOR ENGAGEMENT OF THE NOZZLE THEREWITH; A SECOND RESILIENT MOUNTING FOR SAID NOZZLE URGING THE SAME TO A POSITION BLOCKING FLOW OF PLASTIC MATERIAL THERETHROUGH EXCEPT UPON CONTINUED MOVEMENT OF SAID CYLINDER FOLLOWING ENGAGEMENT OF SAID NOZZLE WITH A MOLD; DISPLACEMENT MEANS IN SAID CYLINDER EFFECTIVE TO APPLY PRESSURE ON PLASTIC MATERIAL IN SAID CYLINDER THUS TO SEQUENTIALLY MOVE SAID CYLINDER AND NOZZLE AGAINST SAID FIRST AND SECOND RESILIENT MOUNTING MEANS RESPECTIVELY; AND STOP MEANS TO ARREST MOVEMENT OF SAID CYLINDER AFTER SAID NOZZLE HAS BEEN OPENED AND WHILE THE NOZZLE IS ENGAGED WITH A MOLD SOLELY BY FORCE APPLIED THROUGH SAID SECOND RESILIENT MOUNTING.
References Cited (Backward Citations)
US2433654A
Cited
US3002229A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-03-06 | 1970-09-05 | 1971-03-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-03-06 | 1974-09-05 | 1975-03-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-03-06 | 1978-09-05 | 1979-03-07 | $7700.00 | Window Closed / Lapsed |