Patent US3127637A successfully refreshed from Google Patents.
US3127637A
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Method of and apparatus for making plastic articles
Assignee: OI Glass Inc
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Filing: 1961-05-12
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Granted: 1964-04-07
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Expires: 1981-05-12
Abstract
No abstract record available.
Inventors
- 👤 Raymond H Rex
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 17:19
CPC Classifications
B; B29; B29C; B29C48/00; B29C48/25; B29C48/36; B29C48/375; B29C48/388; B29C48/395; B29C2949/00; B29C2949/30; B29C2949/3032; B29C2949/3041; B29C48/03
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
144 words
IN AN APPARATUS FOR INTERMITTENTLY ISSUING PLASTICIZED MATERIAL THROUGH AN ORIFICE, A PLASTICIZER-EXTRUDER SCREW, MEANS FOR ROTATABLY DRIVING SAID SCREW TO SUPPLY PLASTICIZED MATERIAL TO A SCREW-ORIFICE CONDUIT, A VALVE IN SAID CONDUIT FOR ALTERNATELY ESTABLISHING AND INTERRUPTING SCREW-TO-ORIFICE COMMUNICATION, MEANS DEFINING AN ACCUMULATION CHAMBER IN CONSTANT COMMUNICATION WITH SAID SCREW AND RECEIVING PLASTICIZED MATERIAL FROM SAID SCREW WHEN SCREW-TO-ORIFICE COMMUNICATION IS INTERRUPTED, A MATERIAL PURGING PISTON FOR DISPLACING MATERIAL FROM SAID ACCUMULATION CHAMBER THROUGH SAID CONDUIT, CONSTANT PRESSURE MEANS FOR DISPLACING SAID PISTON IN ONE DIRECTION AND OPPOSING MOVEMENT OF THE PISTON IN ITS OTHER DIRECTION, MEANS RESPONSIVE TO SUBSTANTIALLY COMPLETE DISPLACEMENT OF SAID PISTON IN SAID ONE DIRECTION BY SAID PRESSURE MEANS FOR STARTING ROTATION OF THE SCREW, AND MEANS RESPONSIVE TO DISPLACEMENT OF SAID PISTON IN SAID OTHER DIRECTION BY PRESSURED MATERIAL FROM THE SCREW FOR STOPPING ROTATION OF SAID SCREW.
Claim 2
Dependent Claim
144 words
IN AN APPARATUS FOR INTERMITTENTLY ISSUING PLASTICIZED MATERIAL THROUGH AN ORIFICE, A PLASTICIZER-EXTRUDER SCREW, MEANS FOR ROTATABLY DRIVING SAID SCREW TO SUPPLY PLASTICIZED MATERIAL TO A SCREW-ORIFICE CONDUIT, A VALVE IN SAID CONDUIT FOR ALTERNATELY ESTABLISHING AND INTERRUPTING SCREW-TO-ORIFICE COMMUNICATION, MEANS DEFINING AN ACCUMULATION CHAMBER IN CONSTANT COMMUNICATION WITH SAID SCREW AND RECEIVING PLASTICIZED MATERIAL FROM SAID SCREW WHEN SCREW-TO-ORIFICE COMMUNICATION IS INTERRUPTED, A MATERIAL PURGING PISTON FOR DISPLACING MATERIAL FROM SAID ACCUMULATION CHAMBER THROUGH SAID CONDUIT, CONSTANT PRESSURE MEANS FOR DISPLACING SAID PISTON IN ONE DIRECTION AND OPPOSING MOVEMENT OF THE PISTON IN ITS OTHER DIRECTION, MEANS RESPONSIVE TO SUBSTANTIALLY COMPLETE DISPLACEMENT OF SAID PISTON IN SAID ONE DIRECTION BY SAID PRESSURE MEANS FOR STARTING ROTATION OF THE SCREW, AND MEANS RESPONSIVE TO DISPLACEMENT OF SAID PISTON IN SAID OTHER DIRECTION BY PRESSURED MATERIAL FROM THE SCREW FOR STOPPING ROTATION OF SAID SCREW.
Claim 3
Dependent Claim
111 words
IN A METHOD OF MAKING A PLASTIC ARTICLE FROM MATERIAL EXPRESSED THROUGH AN ORIFICE EXPRESSED FROM A SCREW-TYPE PLASTICIZER-EXTRUDER, COMMUNICATION BETWEEN SAID PLASTICIZER-EXTRUDER AND THE ORIFICE BEING CONTROLLED BY A VALVE, THE STEPS OF ACCUMULATING A BODY OF MATERIAL DURING THOSE PERIODS WHEN COMMUNICATION IS INTERRUPTED BETWEEN THE PLASTICIZER-EXTRUDER AND THE ORIFICE, HALTING ROTATION OF THE SCREW-TYPE PLASTICIZER-EXTRUDER WHEN SAID BODY OF MATERIAL HAS ATTAINED A PREDETERMINED VOLUME, DISPENSING MATERIAL FROM SAID ACCUMULATED BODY ONLY THROUGH SAID ORIFICE, INITIATING ROTATION OF THE SCREW-TYPE PLASTICIZER-EXTRUDER WHEN THE BODY OF ACCUMULATED MATERIAL IS EXHAUSTED, AND DISPENSING MATERIAL FROM BOTH SAID PLASTICIZER AND SAID BODY DURING THE RE-ACCUMULATION OF THE PREDETERMINED VOLUME OF MATERIAL.
Claim 4
Dependent Claim
111 words
IN A METHOD OF MAKING A PLASTIC ARTICLE FROM MATERIAL EXPRESSED THROUGH AN ORIFICE EXPRESSED FROM A SCREW-TYPE PLASTICIZER-EXTRUDER, COMMUNICATION BETWEEN SAID PLASTICIZER-EXTRUDER AND THE ORIFICE BEING CONTROLLED BY A VALVE, THE STEPS OF ACCUMULATING A BODY OF MATERIAL DURING THOSE PERIODS WHEN COMMUNICATION IS INTERRUPTED BETWEEN THE PLASTICIZER-EXTRUDER AND THE ORIFICE, HALTING ROTATION OF THE SCREW-TYPE PLASTICIZER-EXTRUDER WHEN SAID BODY OF MATERIAL HAS ATTAINED A PREDETERMINED VOLUME, DISPENSING MATERIAL FROM SAID ACCUMULATED BODY ONLY THROUGH SAID ORIFICE, INITIATING ROTATION OF THE SCREW-TYPE PLASTICIZER-EXTRUDER WHEN THE BODY OF ACCUMULATED MATERIAL IS EXHAUSTED, AND DISPENSING MATERIAL FROM BOTH SAID PLASTICIZER AND SAID BODY DURING THE RE-ACCUMULATION OF THE PREDETERMINED VOLUME OF MATERIAL.
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) | 1967-04-07 | 1967-10-07 | 1968-04-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-04-07 | 1971-10-07 | 1972-04-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-04-07 | 1975-10-07 | 1976-04-07 | $7700.00 | Window Closed / Lapsed |