US3248180A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polymer finisher apparatus
Assignee: EIDP Inc
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Filing: 1965-06-23
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Granted: 1966-04-26
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Expires: 1985-06-23
Abstract
No abstract record available.
Inventors
- 👤 Kilpatrick Lester Louis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 01:40
CPC Classifications
B; B01; B01D; B01D3/00; B01D3/14; B01D3/30; B01F; B01F27/00; B01F27/05; B01F27/09; B01F27/092; B01J; B01J19/00; B01J19/18; C; C08; C08G; C08G63/00; C08G63/78; C08G63/785; C08G69/00; C08G69/02; C08G69/04; B01J2219/00; B01J2219/00049; B01J2219/00051; B01J2219/00074; B01J2219/00087; B01J2219/00094; B01J2219/00164; B01J2219/18; B01J2219/182
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
185 words
IN A POLYMER FINISHING APPARATUS HAVING A GENERALLY CYLINDRICAL POLYMERIZATION VESSEL WITH THE LONGITUDINAL AXIS DISPOSED IN A SUBSTANTIALLY HORIZONTAL PLANE AND HAVING AN INLET FOR LIQUID NEAR ONE END, AN OUTLET FOR LIQUID NEAR THE OTHER END AND AN OUTLET FOR VAPOR NEAR ONE OF THE ENDS, THE IMPROVEMENT OF AN AGITATOR MOUNTED FOR ROTATION INSIDE THE VESSEL IN THE FORM OF A CYLINDRICAL CAGE HAVING AN OUTSIDE DIAMETER ONLY SLIGHTLY LESS THAN THE INSIDE DIAMETER OF THE VESSEL AND COMPRISING PERFORATED END WHEELS SUPPORTED ON ROTATABLE SHAFTS ALIGNED WITH THE LONGITUDINAL AXIS OF THE VESSEL, A PLURALITY OF PERIPHERAL BARS EXTENDING BETWEEN SAID WHEELS PARALLEL TO THE AXIS OF THE CAGE, GENERALLY HELICAL RODS ARRANGED AS CHORDS OF THE CAGE AND CONNECTING THE BARS TO FORM THE CYLINDRICAL SURFACE OF THE CAGE, AND A PLURALITY OF FILM-FORMATIVE WIRES MOUNTED WITHIN THE CAGE, EACH OF THE SAID WIRES EXTENDING FROM AN INTERSECTION OF A BAR WITH A ROD SUBSTANTIALLY IN A PLANE PERPENDICULAR TO THE LONGITUDINAL AXIS OF THE VESSEL AND HAVING BOTH ENDS OF THE WIRE SECURED IN POSITION WITHIN THE AGITATOR CAGE.
Claim 2
Dependent Claim
185 words
IN A POLYMER FINISHING APPARATUS HAVING A GENERALLY CYLINDRICAL POLYMERIZATION VESSEL WITH THE LONGITUDINAL AXIS DISPOSED IN A SUBSTANTIALLY HORIZONTAL PLANE AND HAVING AN INLET FOR LIQUID NEAR ONE END, AN OUTLET FOR LIQUID NEAR THE OTHER END AND AN OUTLET FOR VAPOR NEAR ONE OF THE ENDS, THE IMPROVEMENT OF AN AGITATOR MOUNTED FOR ROTATION INSIDE THE VESSEL IN THE FORM OF A CYLINDRICAL CAGE HAVING AN OUTSIDE DIAMETER ONLY SLIGHTLY LESS THAN THE INSIDE DIAMETER OF THE VESSEL AND COMPRISING PERFORATED END WHEELS SUPPORTED ON ROTATABLE SHAFTS ALIGNED WITH THE LONGITUDINAL AXIS OF THE VESSEL, A PLURALITY OF PERIPHERAL BARS EXTENDING BETWEEN SAID WHEELS PARALLEL TO THE AXIS OF THE CAGE, GENERALLY HELICAL RODS ARRANGED AS CHORDS OF THE CAGE AND CONNECTING THE BARS TO FORM THE CYLINDRICAL SURFACE OF THE CAGE, AND A PLURALITY OF FILM-FORMATIVE WIRES MOUNTED WITHIN THE CAGE, EACH OF THE SAID WIRES EXTENDING FROM AN INTERSECTION OF A BAR WITH A ROD SUBSTANTIALLY IN A PLANE PERPENDICULAR TO THE LONGITUDINAL AXIS OF THE VESSEL AND HAVING BOTH ENDS OF THE WIRE SECURED IN POSITION WITHIN THE AGITATOR CAGE.
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) | 1969-04-25 | 1969-10-25 | 1970-04-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-04-25 | 1973-10-25 | 1974-04-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-04-25 | 1977-10-25 | 1978-04-26 | $7700.00 | Window Closed / Lapsed |