US4893754A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Generation of flat liquid sheet and sprays by means of simple cylindrical orifices
Assignee: Individual
•
Filing: 1987-11-13
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Granted: 1990-01-16
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Expires: 2007-11-13
Abstract
Abstract Apparatus and method of generating flat liquid sheet sprays by means of simple cylindrical orifices. One form is a container having an interior closed end with the exception of an orifice disposed eccentrically of the closed end to enable generation of a fine spray through the orifice. The orifice is rounded on the outside of the closed end. The orifices may extend radially outwardly instead or may take other forms.
Inventors
- 👤 Francisco Ruiz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 08:01
CPC Classifications
B; B05; B05B; B05B1/00; B05B1/02; B05B1/04; B05B7/00; B05B7/02; B05B7/08; B05B7/0807; B05B7/0815
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
139 words
An atomizer for generating a flat liquid sheet spray comprising: a hollow cylindrical container having a central longitudinal axis, said container being devoid of any obstacle to fluid flow and devoid of any additional air supply, said hollow cylindrical container having a substantially flat closed end; and an orifice disposed in said flat closed end eccentrically offset from the axis of said container, said orifice being cylindrical and having a length substantially equal to its width and having an adjacent outwardly flared portion to provide a gradually opening outlet; and wherein the eccentricity of the orifice enables generation of a secondary flow of liquid consisting of a pair of counter-rotating vortices so that the flat liquid sheet spray emerges through said orifice, said flat liquid sheet spray being stabilized by the Coanda effect acting on said gradually opening outlet.
Claim 2
Dependent Claim
139 words
An atomizer for generating a flat liquid sheet spray comprising: a hollow cylindrical container having a central longitudinal axis, said container being devoid of any obstacle to fluid flow and devoid of any additional air supply, said hollow cylindrical container having a substantially flat closed end; and an orifice disposed in said flat closed end eccentrically offset from the axis of said container, said orifice being cylindrical and having a length substantially equal to its width and having an adjacent outwardly flared portion to provide a gradually opening outlet; and wherein the eccentricity of the orifice enables generation of a secondary flow of liquid consisting of a pair of counter-rotating vortices so that the flat liquid sheet spray emerges through said orifice, said flat liquid sheet spray being stabilized by the Coanda effect acting on said gradually opening outlet.
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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) | 1993-01-15 | 1993-07-17 | 1994-01-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-01-15 | 1997-07-17 | 1998-01-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-01-15 | 2001-07-17 | 2002-01-16 | $7700.00 | Window Closed / Lapsed |