Patent US2839601A successfully refreshed from Google Patents.
Patent US3211209A successfully refreshed from Google Patents.
US3211209A
Expired / Lapsed
US
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Apparatus for changing the volatile content of viscous materials
Assignee: Monsanto Co
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Filing: 1962-10-16
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Granted: 1965-10-12
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Expires: 1982-10-16
Abstract
No abstract record available.
Inventors
- 👤 George A Latinen
- 👤 Robert H M Simon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 13:48
CPC Classifications
B; B29; B29C; B29C48/00; B29C48/25; B29C48/36; B29C48/50; B29C48/76; B29C48/765; B29C48/766; B29C48/03; Y; Y10; Y10S; Y10S159/00; Y10S159/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
170 words
AN APPARATUS ADAPTED FOR CHANGING THE VOLTILE CONTENT OF VISCOUS FLUIDS COMPRISING IN COMBINATION, AN EXTERNALLY TEMPREATURE-CONTROLLED CASING DEFINING A CHAMBER, SAID CHAMBER BEING PROVIDED WITH AN ENTRY FOR CHARGING VISCOUS FLUIDS, AN EXIT FOR DISCHARGING VISCOUS FLUIDS AND A PASSAGEWAY FOR THE FLOW OF VOLATILES AND GASSES; A ROTATABLE MEMBER COMPRISING A CENTER SHAFT, ROTATABLY MOUNTED IN SAID CHAMBER, HAVING A PLURALITY OF RIBS HELICALLY EXTENDING AROUND THE LONGITUDINAL AXIS OF THE CENTER SHAFT, SAID RIBS HAVING A LEAD OF FROM 1 TO 10 TIMES THE DIAMETER OF THE ROTATABLE MEMBER AND BEING NOTCHED AT INTERVALS ALONG THEIR PERIPHERAL EDGES, THE NOTCHES OF SAID RIB HAVING A MAXIMUM DEPTH OF 1/4 TO 1/3 THE RADIUS OF THE CHAMBER; AND AN EXTRUDER HEAD, INTERGRATED TO THE EXIT OF SAID CHAMBER; COMPRISING AN ELONGATED CASING DEFINING A LENGTHWISE BORE, AN EXTRUDER SCREW WITHIN SAID BORE SECURED COAXIALLY TO THE CENTER SHAFT AT THE DISCHARGED END OF SAID ROTATABLE MEMBER AND AN EXCRUSION ORIFICE AT THE DISCHARGE END OF THE EXTRUDER HEAD.
Claim 2
Independent Claim
170 words
AN APPARATUS ADAPTED FOR CHANGING THE VOLTILE CONTENT OF VISCOUS FLUIDS COMPRISING IN COMBINATION, AN EXTERNALLY TEMPREATURE-CONTROLLED CASING DEFINING A CHAMBER, SAID CHAMBER BEING PROVIDED WITH AN ENTRY FOR CHARGING VISCOUS FLUIDS, AN EXIT FOR DISCHARGING VISCOUS FLUIDS AND A PASSAGEWAY FOR THE FLOW OF VOLATILES AND GASSES; A ROTATABLE MEMBER COMPRISING A CENTER SHAFT, ROTATABLY MOUNTED IN SAID CHAMBER, HAVING A PLURALITY OF RIBS HELICALLY EXTENDING AROUND THE LONGITUDINAL AXIS OF THE CENTER SHAFT, SAID RIBS HAVING A LEAD OF FROM 1 TO 10 TIMES THE DIAMETER OF THE ROTATABLE MEMBER AND BEING NOTCHED AT INTERVALS ALONG THEIR PERIPHERAL EDGES, THE NOTCHES OF SAID RIB HAVING A MAXIMUM DEPTH OF 1/4 TO 1/3 THE RADIUS OF THE CHAMBER; AND AN EXTRUDER HEAD, INTERGRATED TO THE EXIT OF SAID CHAMBER; COMPRISING AN ELONGATED CASING DEFINING A LENGTHWISE BORE, AN EXTRUDER SCREW WITHIN SAID BORE SECURED COAXIALLY TO THE CENTER SHAFT AT THE DISCHARGED END OF SAID ROTATABLE MEMBER AND AN EXCRUSION ORIFICE AT THE DISCHARGE END OF THE EXTRUDER HEAD.
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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) | 1968-10-11 | 1969-04-12 | 1969-10-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-10-11 | 1973-04-12 | 1973-10-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-10-11 | 1977-04-12 | 1977-10-12 | $7700.00 | Window Closed / Lapsed |