Patent US3669419A successfully refreshed from Google Patents.
US3669419A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Atomizing nozzle, particularly for oil-burners
Assignee: Danfoss AS
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Filing: 1971-01-13
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Granted: 1972-06-13
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Expires: 1991-01-13
Abstract
Abstract The invention relates to an atomizing nozzle having a tubularly shaped housing with an outlet orifice at one end thereof. An annularly shaped member having a frustoconically shaped backing surface is adjacent the orifice. A frustoconically shaped shell member is held in position against the backing surface with a screw member having a frustoconically shaped male surface. Grooves or slots are provided in the shell member and either or both of the frustoconically shaped surfaces are cooperable with the grooves or slots to provide fluid flow passages.
Inventors
- 👤 Jorgen Hartvig Petersen
- 👤 Leif Viggo Sturlason
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 01:18
CPC Classifications
F; F23; F23D; F23D11/00; F23D11/36; F23D11/38
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
94 words
An atomizing nozzle comprising a tubularly shaped housing having a bore and an outlet orifice at one end thereof, means forming a frustoconically shaped female backing surface, a frustoconically shaped shell engaging said backing surface, a member having a frustoconically shaped male surface, said male surface being in abutting engagement with said shell, radially extending passages between said surfaces formed by said shell and at least one of said surfaces, said member having a shank portion of lesser diameter than said bore to form an annular distributing chamber having fluid communication with said passages.
Claim 2
Dependent Claim
94 words
An atomizing nozzle comprising a tubularly shaped housing having a bore and an outlet orifice at one end thereof, means forming a frustoconically shaped female backing surface, a frustoconically shaped shell engaging said backing surface, a member having a frustoconically shaped male surface, said male surface being in abutting engagement with said shell, radially extending passages between said surfaces formed by said shell and at least one of said surfaces, said member having a shank portion of lesser diameter than said bore to form an annular distributing chamber having fluid communication with said passages.
Claim 3
Dependent Claim
30 words
A nozzle according to claim 1 wherein said passages have the form of slots in said shell and are formed in part by one of said male and female surfaces.
Claim 4
Dependent Claim
25 words
A nozzle according to claim 1 wherein said radially extending passages are partially defined by recessed grooves in said shell and one of said surfaces.
Claim 5
Dependent Claim
16 words
A nozzle according to claim 3 wherein said one of said surfaces is said male surface.
References Cited (Backward Citations)
US2484037A
Cited
US2746801A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-06-13 | 1975-12-13 | 1976-06-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-06-13 | 1979-12-13 | 1980-06-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-06-13 | 1983-12-13 | 1984-06-13 | $7700.00 | Window Closed / Lapsed |