US3319299A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Injection molding nozzle
Assignee: Van Dorn Co
•
Filing: 1965-04-19
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Granted: 1967-05-16
•
Expires: 1985-04-19
Abstract
No abstract record available.
Inventors
- 👤 Philip Z Kiraly
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 18:24
CPC Classifications
B; B29; B29C; B29C45/00; B29C45/17; B29C45/46; B29C45/47; B29C45/50; B29C45/52
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
68 words
AN INJECTION MOLDING NOZZLE FOR INJECTING A PLUG OF HEATED PLASTIC INTO A MOLD CAVITY COMPRISING A FEEDING PASSAGE OPENING AT OPPOSITE ENDS OF THE NOZZLE THROUGH WHICH PLASTIC IS FED AND DEPOSITED TO FORM SAID PLUG, A VALVE SEAT WITHIN SAID PASSAGE, AND A MOVABLE ELEMENT GUIDED STRICTLY FOR RECTILINEAR MOVEMENT RELATIVE TO THE VALVE SEAT TO OPEN AND CLOSE SAID PASSAGE, THE PASSAGE BEING AUTOMATICALLY CLOSED
Claim 2
Dependent Claim
68 words
AN INJECTION MOLDING NOZZLE FOR INJECTING A PLUG OF HEATED PLASTIC INTO A MOLD CAVITY COMPRISING A FEEDING PASSAGE OPENING AT OPPOSITE ENDS OF THE NOZZLE THROUGH WHICH PLASTIC IS FED AND DEPOSITED TO FORM SAID PLUG, A VALVE SEAT WITHIN SAID PASSAGE, AND A MOVABLE ELEMENT GUIDED STRICTLY FOR RECTILINEAR MOVEMENT RELATIVE TO THE VALVE SEAT TO OPEN AND CLOSE SAID PASSAGE, THE PASSAGE BEING AUTOMATICALLY CLOSED
References Cited (Backward Citations)
CA615178A
Cited
US3001234A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-05-15 | 1970-11-14 | 1971-05-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-05-15 | 1974-11-14 | 1975-05-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-05-15 | 1978-11-14 | 1979-05-16 | $7700.00 | Window Closed / Lapsed |