Patent US4619400A successfully refreshed from Google Patents.
US4619400A
Expired / Lapsed
US
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Self cleaning variable width annular slit atomizer
Assignee: Shell USA Inc
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Filing: 1984-06-13
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Granted: 1986-10-28
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Expires: 2004-06-13
Abstract
Abstract A self-cleaning variable width annular slip atomizer is provided. The atomizer has a tubular body, a valve stem coaxially located in the tubular body and valve member that forms an annular slit type nozzle of a variable width with the tubular body. The valve member is continuously rotatable during operation for cleaning the slit nozzle. The valve stem may have a central opening therethrough for introducing gaseous matter into materials atomized.
Inventors
- 👤 Maarten J. VAN DER Burgt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 20:49
CPC Classifications
C; C09; C09C; C09C1/00; C09C1/44; C09C1/48; C09C1/50; B; B05; B05B; B05B15/00; B05B15/50; F; F23; F23D; F23D1/00; F23D1/005; F23D11/00; F23D11/24; F23D11/36; F23D11/38; F23D11/386; C10; C10J; C10J2200/00; C10J2200/15; C10J2200/152; F23D2900/00; F23D2900/00016
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
135 words
A self cleaning atomizer for liquids comprising: a tubular body, said body having an open end and an inlet for supplying liquids under pressure to the interior of the body, said open end having a conical surface; a valve stem extending through the tubular body, said valve stem being rotatably mounted coaxially within said tubular body; a valve member having a conical shape, said valve member being secured to one end of said valve stem adjacent the open end of said tubular body and forming with the open end of the tubular body a substantially diverging annular slit nozzle of preselectable width; means coupled to said valve stem to allow continuous rotation of the valve stem and valve member without changing a preselected width of the annular slit nozzle; and means for vibrating the atomizer.
Claim 2
Dependent Claim
135 words
A self cleaning atomizer for liquids comprising: a tubular body, said body having an open end and an inlet for supplying liquids under pressure to the interior of the body, said open end having a conical surface; a valve stem extending through the tubular body, said valve stem being rotatably mounted coaxially within said tubular body; a valve member having a conical shape, said valve member being secured to one end of said valve stem adjacent the open end of said tubular body and forming with the open end of the tubular body a substantially diverging annular slit nozzle of preselectable width; means coupled to said valve stem to allow continuous rotation of the valve stem and valve member without changing a preselected width of the annular slit nozzle; and means for vibrating the atomizer.
Claim 3
Dependent Claim
17 words
Atomizer as claimed in claim 1, wherein the means for vibrating are operable at an ultrasonic frequency.
Claim 4
Dependent Claim
16 words
Atomizer as claimed in claim 2, wherein the vibrating means are coupled to the valve stem.
Claim 5
Dependent Claim
17 words
Atomizer as claimed in claim 1, wherein the means for vibrating are coupled to the valve stem.
Claim 6
Dependent Claim
23 words
Atomizer as claimed in claim 1, wherein the valve member is provided with an internal channel for the passage of a gaseous medium.
Claim 7
Dependent Claim
17 words
Atomizer as claimed in claim 5, wherein the means for vibrating are coupled to the valve stem.
Claim 8
Dependent Claim
17 words
Atomizer as claimed in claim 5, wherein the means for vibrating are operable at an ultrasonic frequency.
Claim 9
Dependent Claim
16 words
Atomizer as claimed in claim 7, wherein the vibrating means are coupled to the valve stem.
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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) | 1989-10-27 | 1990-04-28 | 1990-10-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-10-27 | 1994-04-28 | 1994-10-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-10-27 | 1998-04-28 | 1998-10-28 | $7700.00 | Window Closed / Lapsed |