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US2732950A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Albert w
Assignee: —
•
Filing: —
•
Granted: 1956-01-31
•
Expires: 1973-01-31
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 17:12
CPC Classifications
D; D01; D01D; D01D1/00; D01D1/10; D01D1/106; B; B01; B01D; B01D29/00; B01D29/11; B01D29/13; B01D29/15; B01D35/00; B01D35/02; B01D35/18; B01D37/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
175 words
A CANDLE FILTER WHEREIN A SPINNING DOPE IS HEATED AND FILTERED BEFORE BEING PASSED TO A SPINNING JET, SAID CANDLE FILTER COMPRISING A CYLINDRICAL CASING, A CYLINDRICAL TUBE POSITIONED CONCENTRICALLY WITHIN SAID CYLINDRICAL CASING AND FORMING WITH SAID CASING AN ANNULAR JACKET THROUGH WHICH A HEATING MEDIUM IS PASSED, MEANS FOR LEADING A FLUID HEATING MEDIUM INTO AND OUT OF SAID JACKET AN ANNULAR PLUG OF SMALLER DIAMETER THAN THE INNER DIAMETER OF SAID CASING POSITIONED AT THE LOWER END OF SAID CANDLE FILTER AND HAVING A RIM PROJECTING FROM THE LOWER PORTION OF THE PERIPHERY THEREOF INTO CONTACT WITH THE INNER SURFACE OF SAID CASING, SAID ANNULAR PLUG FORMING WITH SAID CASING AN ANNULAR SPACE COMMUNICATING DIRECTLY WITH SAID ANNULAR JACKET WHEREBY THE HEATING MEDIUM WILL COME INTO CONTACT WITH THE PERIPHERY OF SAID ANNULAR PLUG TO HEAT THE SAME, MEANS FOR LEADING A SPINNING DOPE INTO AND OUT OF THE SPACE WITHIN SAID CYLINDRICAL TUBE AND THROUGH SAID PLUG, AND A FILTERING UNIT POSITIONED WITHIN SAID CYLINDRICAL TUBE TO FILTER THE SPINNING DOPE.
Claim 2
Dependent Claim
175 words
A CANDLE FILTER WHEREIN A SPINNING DOPE IS HEATED AND FILTERED BEFORE BEING PASSED TO A SPINNING JET, SAID CANDLE FILTER COMPRISING A CYLINDRICAL CASING, A CYLINDRICAL TUBE POSITIONED CONCENTRICALLY WITHIN SAID CYLINDRICAL CASING AND FORMING WITH SAID CASING AN ANNULAR JACKET THROUGH WHICH A HEATING MEDIUM IS PASSED, MEANS FOR LEADING A FLUID HEATING MEDIUM INTO AND OUT OF SAID JACKET AN ANNULAR PLUG OF SMALLER DIAMETER THAN THE INNER DIAMETER OF SAID CASING POSITIONED AT THE LOWER END OF SAID CANDLE FILTER AND HAVING A RIM PROJECTING FROM THE LOWER PORTION OF THE PERIPHERY THEREOF INTO CONTACT WITH THE INNER SURFACE OF SAID CASING, SAID ANNULAR PLUG FORMING WITH SAID CASING AN ANNULAR SPACE COMMUNICATING DIRECTLY WITH SAID ANNULAR JACKET WHEREBY THE HEATING MEDIUM WILL COME INTO CONTACT WITH THE PERIPHERY OF SAID ANNULAR PLUG TO HEAT THE SAME, MEANS FOR LEADING A SPINNING DOPE INTO AND OUT OF THE SPACE WITHIN SAID CYLINDRICAL TUBE AND THROUGH SAID PLUG, AND A FILTERING UNIT POSITIONED WITHIN SAID CYLINDRICAL TUBE TO FILTER THE SPINNING DOPE.
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) | 1959-01-30 | 1959-08-01 | 1960-01-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-01-30 | 1963-08-01 | 1964-01-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-01-30 | 1967-08-01 | 1968-01-31 | $7700.00 | Window Closed / Lapsed |