US3283909A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Centrifugal separator
Assignee: Ametek Inc
•
Filing: 1963-12-20
•
Granted: 1966-11-08
•
Expires: 1983-12-20
Abstract
No abstract record available.
Inventors
- 👤 Edward A Daubman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 17:07
CPC Classifications
B; B04; B04B; B04B7/00; B04B7/08; B04B7/12; B04B7/16; Y; Y10; Y10T; Y10T403/00; Y10T403/29
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
109 words
IN A CENTRIFUGAL SEPARATOR, A HOUSING; A SPINDLE MOUNTED IN SAID HOUSING; A BASKET MADE FROM A PERFORATED SHEET MATERIAL CONNECTED TO SAID SPINDLE; A LINING WITHIN SAID BASKET AND INCLUDING A CYLINDRICAL SCREEN HAVING ITS INNER SURFACE COVERED WITH A FABRIC LINING; A PROTECTIVE SHEET OF PERFORATED METAL ON THE INNER SURFACE OF SAID FABRIC LINING; EXPANSIBLE AND RETRACTABLE HOOP RETAINING MEANS WITHIN SAID ADJACENT AT LEAST ONE END OF SAID BASKET; SAID RETAINING MEANS INCLUDING TWO SUBSTANTIALLY SEMICIRCULAR ELEMENTS, EACH END OF ONE ELEMENT AND EACH END OF THE OTHER ELEMENT BEING ARRANGED IN AN ALIGNED PAIR, EACH ALIGNED PAIR OF ENDS BEING BENT INWARDLY AND EXTENDING
Claim 2
Dependent Claim
109 words
IN A CENTRIFUGAL SEPARATOR, A HOUSING; A SPINDLE MOUNTED IN SAID HOUSING; A BASKET MADE FROM A PERFORATED SHEET MATERIAL CONNECTED TO SAID SPINDLE; A LINING WITHIN SAID BASKET AND INCLUDING A CYLINDRICAL SCREEN HAVING ITS INNER SURFACE COVERED WITH A FABRIC LINING; A PROTECTIVE SHEET OF PERFORATED METAL ON THE INNER SURFACE OF SAID FABRIC LINING; EXPANSIBLE AND RETRACTABLE HOOP RETAINING MEANS WITHIN SAID ADJACENT AT LEAST ONE END OF SAID BASKET; SAID RETAINING MEANS INCLUDING TWO SUBSTANTIALLY SEMICIRCULAR ELEMENTS, EACH END OF ONE ELEMENT AND EACH END OF THE OTHER ELEMENT BEING ARRANGED IN AN ALIGNED PAIR, EACH ALIGNED PAIR OF ENDS BEING BENT INWARDLY AND EXTENDING
References Cited (Backward Citations)
US630365A
Cited
US815874A
Cited
US830230A
Cited
US1364599A
Cited
US1553525A
Cited
US1770854A
Cited
US2306091A
Cited
US2639811A
Cited
US2635249A
Cited
US2634776A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-11-07 | 1970-05-09 | 1970-11-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-11-07 | 1974-05-09 | 1974-11-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-11-07 | 1978-05-09 | 1978-11-08 | $7700.00 | Window Closed / Lapsed |