Patent US3191870A successfully refreshed from Google Patents.
US3191870A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Spray nozzle
Assignee: Chemical Construction Corp
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Filing: 1963-07-25
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Granted: 1965-06-29
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Expires: 1983-07-25
Abstract
No abstract record available.
Inventors
- 👤 Howard P Willett
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 15:10
CPC Classifications
B; B05; B05B; B05B7/00; B05B7/02; B05B7/10; B05B7/04; B05B7/0416; B05B7/0441; B05B7/0475
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
144 words
A SPRAY NOZZLE FOR DISPERSAL OF A SLURRY CONTAINING SOLID PARTICULATE MATTER INTO A GAS STREAM WHICH COMPRISES AN INNER CONDUIT, A CLOSURE BAFFLE AT ONE END OF SAID INNER CONDUIT, SAID INNER CONDUIT BEING OF PROGRESSIVELY INCREASING DIAMETER FROM THE CLOSED END TO THE OPEN END, A SLURRY INLET PIPE EXTENDING TANGENTIALLY INTO SAID INNER CONDUIT AND ADJACENT TO SAID CLOSURE BAFFLE, WHEREBY SLURRY IS TANGENTIALLY PASSED INTO SAID INNER CONDUIT AND IS DISCHARGED FROM THE OPEN END WITH AN OUTWARD WHIRLING MOTION, A COAXIAL OUTER CONDUIT EXTERNAL TO SAID INNER CONDUIT, AT LEAST ONE SUPPORT BRACKET BETWEEN SAID INNER CONDUIT AND SAID OUTER CONDUIT, AND MEANS TO PASS A GAS STREAM INTO THE ANNULAR SPACE BETWEEN SAID INNER CONDUIT AND SAID OUTER CONDUIT, WHEREBY SAID GAS STREAM FLOWS PARALLEL TO SAID SLURRY AND CONTACTS SAID SLURRY UPON DISCHARGE FROM SAID INNER CONDUIT.
Claim 2
Dependent Claim
144 words
A SPRAY NOZZLE FOR DISPERSAL OF A SLURRY CONTAINING SOLID PARTICULATE MATTER INTO A GAS STREAM WHICH COMPRISES AN INNER CONDUIT, A CLOSURE BAFFLE AT ONE END OF SAID INNER CONDUIT, SAID INNER CONDUIT BEING OF PROGRESSIVELY INCREASING DIAMETER FROM THE CLOSED END TO THE OPEN END, A SLURRY INLET PIPE EXTENDING TANGENTIALLY INTO SAID INNER CONDUIT AND ADJACENT TO SAID CLOSURE BAFFLE, WHEREBY SLURRY IS TANGENTIALLY PASSED INTO SAID INNER CONDUIT AND IS DISCHARGED FROM THE OPEN END WITH AN OUTWARD WHIRLING MOTION, A COAXIAL OUTER CONDUIT EXTERNAL TO SAID INNER CONDUIT, AT LEAST ONE SUPPORT BRACKET BETWEEN SAID INNER CONDUIT AND SAID OUTER CONDUIT, AND MEANS TO PASS A GAS STREAM INTO THE ANNULAR SPACE BETWEEN SAID INNER CONDUIT AND SAID OUTER CONDUIT, WHEREBY SAID GAS STREAM FLOWS PARALLEL TO SAID SLURRY AND CONTACTS SAID SLURRY UPON DISCHARGE FROM SAID INNER CONDUIT.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-06-28 | 1968-12-28 | 1969-06-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-06-28 | 1972-12-28 | 1973-06-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-06-28 | 1976-12-28 | 1977-06-29 | $7700.00 | Window Closed / Lapsed |