Patent US3750947A successfully refreshed from Google Patents.
US3750947A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Atomizing nozzle assembly
Assignee: Energy Sciences Inc
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Filing: 1971-09-02
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Granted: 1973-08-07
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Expires: 1991-09-02
Abstract
Abstract Liquid (e.g., paint) is sprayed with a nozzle having an axial flow passage and coaxial radial holes into the passage spaced 180* apart intermediate the nozzle inlet and outlet.
Inventors
- 👤 N Hughes
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 17:24
CPC Classifications
B; B05; B05B; B05B7/00; B05B7/02; B05B7/04; B05B7/0416
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
123 words
The method of spraying paint, comprising providing an atomizing nozzle having a body with inlet and outlet ends and an axial flow passage extending therebetween, and at least one pair of coaxial radial holes into said passage spaced 180* apart intermediate said ends, and supplying compressed air and paint to said nozzle at said inlet end and said radial holes to produce a spray of atomized paint at said oulet end, wherein said air and paint are introduced through one pair of said radial holes at a rate greater than through any other pair of said radial holes, whereby said spray is fan-shaped, the long dimension of the fan being perpendicular to the common axis of said radial holes of said one pair.
Claim 2
Independent Claim
123 words
The method of spraying paint, comprising providing an atomizing nozzle having a body with inlet and outlet ends and an axial flow passage extending therebetween, and at least one pair of coaxial radial holes into said passage spaced 180* apart intermediate said ends, and supplying compressed air and paint to said nozzle at said inlet end and said radial holes to produce a spray of atomized paint at said oulet end, wherein said air and paint are introduced through one pair of said radial holes at a rate greater than through any other pair of said radial holes, whereby said spray is fan-shaped, the long dimension of the fan being perpendicular to the common axis of said radial holes of said one pair.
Claim 3
Dependent Claim
21 words
The method of claim 1 wherein air and paint are introduced through a single coaxial pair only of said radial holes.
Claim 4
Dependent Claim
44 words
The method of claim 1 wherein air and paint are introduced through a pair of openings into said axial passage at said inlet end arranged symmetrically at opposite sides of the nozzle axis and respectively angularly aligned with said one pair of radial holes.
Claim 5
Dependent Claim
25 words
The method of claim 3 wherein said inlet end openings each have an area larger than that of a said radial hole of said pair.
Claim 6
Dependent Claim
41 words
The method of claim 3 wherein air and paint are additionally introduced through an axial inlet hole to said axial passage of area less than that of either said inlet end opening and either said radial hole of said one pair.
Claim 7
Dependent Claim
27 words
The method of claim 1 further comprising the steps of providing openings in said reflector adjacent said axial opening to partially relieve the hydraulic pressure drop thereacross.
Claim 8
Dependent Claim
20 words
The method of claim 3 wherein each said inlet end opening has the shape of a segment of a circle.
Claim 9
Independent Claim
109 words
The method of producing a fan-shaped spray of atomized liquid, comprising, providing a nozzle having a body defining an axial flow passage having inlet and outlet ends, and at least one pair of coaxial radial holes into said passage spaced 180* apart intermediate said ends, supplying said liquid to said passage, and supplying a compressible fluid to said radial holes at a rate through one pair of said holes greater than any corresponding rate for any other pair of radial holes, whereby said spray is produced at said outlet end with the long dimension of said fan being perpendicular to the common axis of said one pair of holes.
Claim 10
Independent Claim
109 words
The method of producing a fan-shaped spray of atomized liquid, comprising, providing a nozzle having a body defining an axial flow passage having inlet and outlet ends, and at least one pair of coaxial radial holes into said passage spaced 180* apart intermediate said ends, supplying said liquid to said passage, and supplying a compressible fluid to said radial holes at a rate through one pair of said holes greater than any corresponding rate for any other pair of radial holes, whereby said spray is produced at said outlet end with the long dimension of said fan being perpendicular to the common axis of said one pair of holes.
Claim 11
Independent Claim
119 words
The method of spraying paint, comprising providing an atomizing nozzle having a body with inlet and outlet ends and an axial flow passage extending therebetween, and at least one pair of coaxial radial holes into said passage spaced 180* apart intermediate said ends, supplying compressed air and paint to said nozzle at said inlet end and said radial holes to produce a spray of atomized paint at said outlet end, providing upstream of said nozzle a perforated reflector, supplying said air and paint to said nozzle through said reflector, and arranging said reflector so that at least the major volume of said air is supplied through zones out of angular alignment with said radial holes of said one pair.
Claim 12
Independent Claim
119 words
The method of spraying paint, comprising providing an atomizing nozzle having a body with inlet and outlet ends and an axial flow passage extending therebetween, and at least one pair of coaxial radial holes into said passage spaced 180* apart intermediate said ends, supplying compressed air and paint to said nozzle at said inlet end and said radial holes to produce a spray of atomized paint at said outlet end, providing upstream of said nozzle a perforated reflector, supplying said air and paint to said nozzle through said reflector, and arranging said reflector so that at least the major volume of said air is supplied through zones out of angular alignment with said radial holes of said one pair.
Claim 13
Independent Claim
145 words
The method of spraying paint, comprising providing an atomizing nozzle having a body with inlet and outlet ends and an axial flow passage extending therebetween, and at least one pair of coaxial radial holes into said passage spaced 180* apart intermediate said ends, supplying compressed air and paint to said nozzle at said inlet end and said radial holes to produce a spray of atomized paint at said outlet end, providing upstream of said nozzle a reflector having an axial opening and two additional openings arranged symmetrically at opposite sides of said axial opening, the centers of said three openings being in a single plane, Arranging said reflector so that said single plane is perpendicular to said common axis of said radial holes, and supplying said paint to said nozzle through said axial opening and air to said nozzle through each of said additional openings.
Claim 14
Independent Claim
145 words
The method of spraying paint, comprising providing an atomizing nozzle having a body with inlet and outlet ends and an axial flow passage extending therebetween, and at least one pair of coaxial radial holes into said passage spaced 180* apart intermediate said ends, supplying compressed air and paint to said nozzle at said inlet end and said radial holes to produce a spray of atomized paint at said outlet end, providing upstream of said nozzle a reflector having an axial opening and two additional openings arranged symmetrically at opposite sides of said axial opening, the centers of said three openings being in a single plane, Arranging said reflector so that said single plane is perpendicular to said common axis of said radial holes, and supplying said paint to said nozzle through said axial opening and air to said nozzle through each of said additional openings.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-08-06 | 1977-02-05 | 1977-08-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-08-06 | 1981-02-05 | 1981-08-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-08-06 | 1985-02-05 | 1985-08-07 | $7700.00 | Window Closed / Lapsed |