Patent US3136723A successfully refreshed from Google Patents.
US3136723A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydrocyclones
Assignee: Bass Brothers Enterprises Inc
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Filing: 1959-02-27
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Granted: 1964-06-09
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Expires: 1979-02-27
Abstract
No abstract record available.
Inventors
- 👤 Ransome W Erwin
- 👤 Richard L O'shields
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 06:36
CPC Classifications
B; B04; B04C; B04C5/00; B04C5/14
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
127 words
IN A HYDROCYCLONE, THE COMBINATION OF A VERTICALLY ELONGATED HOUSING, LINER MEANS OF RUBBER-LIKE MATERIAL PROVIDED IN SAID HOUSING AND FORMING THEREIN A FRUSTOCONICAL CHAMBER HAVING ITS MINOR END AT THE BOTTOM OF THE HOUSING, AND AN UNDERFLOW NOZZLE INCLUDING A CERAMIC MEMBER PROVIDED AT THE BOTTOM OF SAID HOUSING, SAID CERAMIC MEMBER BEING FORMED WITH A FRUSTO-CONICAL CHAMBER PORTION CONSTITUTING A DOWNWARD CONTINUATION OF THE HOUSING LINER CHAMBER AND TERMINATING AT ITS LOWER END IN A DISCHARGE OPENING WHEREIN THE UPPER END OF SAID FRUSTO-CONICAL CHAMBER PORTION IN SAID CERAMIC MEMBER IS OF A LARGER DIAMETER THAN THE LOWER END OF SAID CHAMBER IN SAID RUBBER LINER MEANS, WHEREBY TO PROVIDE AN ANNULAR SHOULDER AT THE JUNCTION OF SAID CERAMIC MEMBER WITH SAID RUBBER LINER MEANS.
Claim 2
Dependent Claim
127 words
IN A HYDROCYCLONE, THE COMBINATION OF A VERTICALLY ELONGATED HOUSING, LINER MEANS OF RUBBER-LIKE MATERIAL PROVIDED IN SAID HOUSING AND FORMING THEREIN A FRUSTOCONICAL CHAMBER HAVING ITS MINOR END AT THE BOTTOM OF THE HOUSING, AND AN UNDERFLOW NOZZLE INCLUDING A CERAMIC MEMBER PROVIDED AT THE BOTTOM OF SAID HOUSING, SAID CERAMIC MEMBER BEING FORMED WITH A FRUSTO-CONICAL CHAMBER PORTION CONSTITUTING A DOWNWARD CONTINUATION OF THE HOUSING LINER CHAMBER AND TERMINATING AT ITS LOWER END IN A DISCHARGE OPENING WHEREIN THE UPPER END OF SAID FRUSTO-CONICAL CHAMBER PORTION IN SAID CERAMIC MEMBER IS OF A LARGER DIAMETER THAN THE LOWER END OF SAID CHAMBER IN SAID RUBBER LINER MEANS, WHEREBY TO PROVIDE AN ANNULAR SHOULDER AT THE JUNCTION OF SAID CERAMIC MEMBER WITH SAID RUBBER LINER MEANS.
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) | 1967-06-09 | 1967-12-09 | 1968-06-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-06-09 | 1971-12-09 | 1972-06-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-06-09 | 1975-12-09 | 1976-06-09 | $7700.00 | Window Closed / Lapsed |