Patent US3677525A successfully refreshed from Google Patents.
US3677525A
Expired / Lapsed
US
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Pressure wave atomizing apparatus
Assignee: Sonic Development Corporation of America
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Filing: 1969-12-31
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Granted: 1972-07-18
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Expires: 1989-12-31
Abstract
Abstract The liquid preferably is a body of liquid in a container. A liquid is forced through a converging-diverging nozzle towards a nearby resonator cavity, and the gas is introduced into the flowing liquid before it reaches the cavity. Preferably, the nozzle and resonator cavity both are immersed in the body of liquid. Intimate contact between the gas and liquid results from the tiny gas bubbles which are produced in the liquid body by this device and method.
Inventors
- 👤 Robert E Schurig
- 👤 Joseph Korn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 14:01
CPC Classifications
F; F23; F23D; F23D11/00; F23D11/34; B; B05; B05B; B05B17/00; B05B17/04; B05B17/06; B05B17/0692
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
166 words
Apparatus for intimately contacting a gas with a liquid in a liquid body, said apparatus comprising, in combination, a liquid body, a nozzle having a converging inlet portion and a diverging outlet portion with a substantially cylindrical central portion of substantially constant cross-sectional area joining said converging and diverging portions, a member having a substantially cylindrical resonator cavity closely adjacent and opposite the outlet of said nozzle, said cavity having a diameter approximately equal to the minimum internal diameter of said nozzle, the depth of said cavity being selected from the group of lengths consisting of lambda /2 and lambda /4, where lambda is defined hereinabove when a gas rather than a liquid is flowing through the nozzle, means for pumping a liquid through said nozzle towards said cavity, said nozzle having a lateral entrance hole, and conduit means for introducing said gas through said entrance hole and into the liquid flowing through said nozzle, said nozzle and said member being immersed in said liquid body.
Claim 2
Dependent Claim
166 words
Apparatus for intimately contacting a gas with a liquid in a liquid body, said apparatus comprising, in combination, a liquid body, a nozzle having a converging inlet portion and a diverging outlet portion with a substantially cylindrical central portion of substantially constant cross-sectional area joining said converging and diverging portions, a member having a substantially cylindrical resonator cavity closely adjacent and opposite the outlet of said nozzle, said cavity having a diameter approximately equal to the minimum internal diameter of said nozzle, the depth of said cavity being selected from the group of lengths consisting of lambda /2 and lambda /4, where lambda is defined hereinabove when a gas rather than a liquid is flowing through the nozzle, means for pumping a liquid through said nozzle towards said cavity, said nozzle having a lateral entrance hole, and conduit means for introducing said gas through said entrance hole and into the liquid flowing through said nozzle, said nozzle and said member being immersed in said liquid body.
Claim 3
Dependent Claim
37 words
Apparatus as in claim 1 in which said lateral entrance hole is annular and is formed by a baffle extending at an angle to the longitudinal axis of said nozzle adjacent said central portion of said nozzle.
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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) | 1975-07-18 | 1976-01-17 | 1976-07-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-07-18 | 1980-01-17 | 1980-07-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-07-18 | 1984-01-17 | 1984-07-18 | $7700.00 | Window Closed / Lapsed |