US3902601A
Expired / Lapsed
US
⏱️ 0.0 years remaining
One piece cyclone cone
Assignee: Townley Industrial Plastics Inc
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Filing: 1974-03-14
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Granted: 1975-09-02
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Expires: 1994-03-14
Abstract
Abstract A one piece cyclone cone is provided with a flange for securing its upper end to the separation chamber of a cyclone. The cone is made of molded polyurethane plastic which is thickened at the wear areas adjacent the lower end. An apex member is seated in the lower end of the cone and is secured therein by a ring detachably secured to the lower end of the cone. The apex may be replaced while the cyclone is in operation by removing the ring to permit the apex to drop out of the bottom end following which the new apex is inserted into the bottom end and the ring replaced. The one piece structure of the cone provides uninterpreted flow so as to increase the efficiency of the cyclone.
Inventors
- 👤 J O Townley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 23:26
CPC Classifications
B; B04; B04C; B04C5/00; B04C5/14; B04C5/08; B04C5/085
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
76 words
A ONE PIECE CONE ELEMENT FOR ACYCLONE COMPRISING AN ELONGATE GENERALLY CONICAL POLYURETHANE BODY HAVING AN ANNULAR FLANGE INTEGRALLY FORMED ON THE UPPER EDGE THEREOF, A GENERALLY CYLINDRICAL RECESS FORMED INTERNALLY OF THE LOWER END OF SAID CONE AND OPENING THROUGH THE BOTTOM THEREOF, AN APEX REMOVEABLE SEATED IN SAID RECESS AND REMOVEABLE THROUGH THE LOWER END OF SAID CONE, AND MEANS DETACHABLY SECURING SAID APEX IN SAID RECESS COMPRISING A FIRST RING MOLDED INTO SAID
Claim 2
Dependent Claim
76 words
A ONE PIECE CONE ELEMENT FOR ACYCLONE COMPRISING AN ELONGATE GENERALLY CONICAL POLYURETHANE BODY HAVING AN ANNULAR FLANGE INTEGRALLY FORMED ON THE UPPER EDGE THEREOF, A GENERALLY CYLINDRICAL RECESS FORMED INTERNALLY OF THE LOWER END OF SAID CONE AND OPENING THROUGH THE BOTTOM THEREOF, AN APEX REMOVEABLE SEATED IN SAID RECESS AND REMOVEABLE THROUGH THE LOWER END OF SAID CONE, AND MEANS DETACHABLY SECURING SAID APEX IN SAID RECESS COMPRISING A FIRST RING MOLDED INTO SAID
Claim 3
Dependent Claim
14 words
A device as claimed in claim 1 wherein said apex is formed of polyurethane.
Claim 4
Dependent Claim
15 words
A device as claimed in claim 1 wherein said apex is formed in silicon carbide.
Claim 5
Dependent Claim
19 words
A device as claimed in claim 1 wherein said body surrounding said recess is conical on its outer surface.
Claim 6
Dependent Claim
19 words
A device as claimed in claim 1 wherein said body surrounding said recess is cylindrical on its outer surface.
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) | 1978-09-01 | 1979-03-03 | 1979-09-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-09-01 | 1983-03-03 | 1983-09-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-09-01 | 1987-03-03 | 1987-09-02 | $7700.00 | Window Closed / Lapsed |