US3191233A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flow control apparatus
Assignee: Continental Can Co Inc
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Filing: 1962-11-30
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Granted: 1965-06-29
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Expires: 1982-11-30
Abstract
No abstract record available.
Inventors
- 👤 Jr Lambert S Linderoth
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 23:33
CPC Classifications
B; B29; B29C; B29C45/00; B29C45/17; B29C45/46; B29C45/53; B29C45/54; B29C2045/547
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
145 words
A FLOW CONTROL APPARATUS IN COMBINATION WITH AN INJECTION MOLDING APPARATUS OF THE TYPE INCLUDING AN EXTRUDER HAVING A DRIVEN FEED MEMBER, AN INJECTOR CYLINDER AND AN INJECTION NOZZLE, SAID FLOW CONTROL APPARATUS COMPRISING AN ELECTRICALLY CONTROLLED VARIABLE SPEED DRIVE UNIT CONNECTED TO SAID FEED MEMBER, A CONDUIT MEANS INCLUDING A MULTIPLE POSITION VALVE DISPOSED BETWEEN SAID EXTRUDER, SAID INJECTION CYLINDER AND SAID INJECTION NOZZLE FOR SELECTIVELY COMMUNICATING SAID EXTRUDER WITH SAID INJECTION CYLINDER TO SUPPLY PLASTIC THERETO AND SAID INJECTION CYLINDER TO SAID INJECTION NOZZLE TO DELIVER PLASTICFROM SAID INJECTOR CYLINDER THROUGH SAID INJECTION NOZZLE, AND AN ELECTRICAL SYSTEM CONNECTED TO SAID ELECTRICALLY CONTROLLED VARIABLE SPEED DRIVE UNIT FOR CONTROLLING THE OPERATION OF THE SAME AND VARYING THE SPEED THEREOF, SAID ELECTRICAL SYSTEM INCLUDING A DRIVE UNIT CONTROL SWITCH OPERATIVELY CONNECTED TO SAID VALVE AND ACTUATED IN ACCORDANCE WITH THE POSITION OF SAID VALVE.
Claim 2
Dependent Claim
145 words
A FLOW CONTROL APPARATUS IN COMBINATION WITH AN INJECTION MOLDING APPARATUS OF THE TYPE INCLUDING AN EXTRUDER HAVING A DRIVEN FEED MEMBER, AN INJECTOR CYLINDER AND AN INJECTION NOZZLE, SAID FLOW CONTROL APPARATUS COMPRISING AN ELECTRICALLY CONTROLLED VARIABLE SPEED DRIVE UNIT CONNECTED TO SAID FEED MEMBER, A CONDUIT MEANS INCLUDING A MULTIPLE POSITION VALVE DISPOSED BETWEEN SAID EXTRUDER, SAID INJECTION CYLINDER AND SAID INJECTION NOZZLE FOR SELECTIVELY COMMUNICATING SAID EXTRUDER WITH SAID INJECTION CYLINDER TO SUPPLY PLASTIC THERETO AND SAID INJECTION CYLINDER TO SAID INJECTION NOZZLE TO DELIVER PLASTICFROM SAID INJECTOR CYLINDER THROUGH SAID INJECTION NOZZLE, AND AN ELECTRICAL SYSTEM CONNECTED TO SAID ELECTRICALLY CONTROLLED VARIABLE SPEED DRIVE UNIT FOR CONTROLLING THE OPERATION OF THE SAME AND VARYING THE SPEED THEREOF, SAID ELECTRICAL SYSTEM INCLUDING A DRIVE UNIT CONTROL SWITCH OPERATIVELY CONNECTED TO SAID VALVE AND ACTUATED IN ACCORDANCE WITH THE POSITION OF SAID VALVE.
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) | 1968-06-28 | 1968-12-28 | 1969-06-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-06-28 | 1972-12-28 | 1973-06-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-06-28 | 1976-12-28 | 1977-06-29 | $7700.00 | Window Closed / Lapsed |