Patent US3693886A successfully refreshed from Google Patents.
US3693886A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Swirl air nozzle
Assignee: Delavan Manufacturing Co
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Filing: 1971-10-27
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Granted: 1972-09-26
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Expires: 1991-10-27
Abstract
Abstract A nozzle for discharging a swirling atomized fluid includes a vortex chamber defined in the nozzle body, a gas inlet tangentially communicating with the chamber and a liquid inlet axially communicating with the chamber wherein the liquid is mixed with the swirling gas in the chamber. An impingement member is positioned in the path of fluid flowing from the chamber having a primary impact surface in the chamber upon which the swirling mixture impinges and a secondary impact surface adjacent to, but spaced from, the nozzle discharge opening upon which the swirling mixture also impinges as it is being discharged from the nozzle.
Inventors
- 👤 Sherman E Conrad
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 10:19
CPC Classifications
B; B05; B05B; B05B1/00; B05B1/34; B05B1/26; B05B1/262; B05B1/265; B05B7/00; B05B7/02; B05B7/04; B05B7/0416; B05B7/10
Claims Analysis
Total Claims: 19
Claim 1
Independent Claim
186 words
A nozzle for discharging a swirling fluid comprising, a body member defining a fluid chamber therein including a passage a first portion of which has a first cross sectional dimension and a second portion of which has a second minimum cross sectional dimension which is smaller than said first cross sectional dimension, a discharge opening in said passage for discharging fluid from said passage, first fluid inlet means communicating eccentrically with said chamber for introducing a fluid into said chamber and inducing a swirling motion in said fluid in said chamber, second fluid inlet means communicating with said chamber for introducing and mixing a fluid into said swirling fluid in said chamber, and impingement means including first impact means in said chamber between said discharge opening and said first fluid inlet means upon which said mixed swirling fluid impinges enroute to said discharge opening and second impact means spaced downstream of said first impact means and said second portion of said passage and positioned adjacent said discharge opening upon which at least some of said mixed swirling fluid leaving said first impact means is also impinged.
Claim 2
Dependent Claim
186 words
A nozzle for discharging a swirling fluid comprising, a body member defining a fluid chamber therein including a passage a first portion of which has a first cross sectional dimension and a second portion of which has a second minimum cross sectional dimension which is smaller than said first cross sectional dimension, a discharge opening in said passage for discharging fluid from said passage, first fluid inlet means communicating eccentrically with said chamber for introducing a fluid into said chamber and inducing a swirling motion in said fluid in said chamber, second fluid inlet means communicating with said chamber for introducing and mixing a fluid into said swirling fluid in said chamber, and impingement means including first impact means in said chamber between said discharge opening and said first fluid inlet means upon which said mixed swirling fluid impinges enroute to said discharge opening and second impact means spaced downstream of said first impact means and said second portion of said passage and positioned adjacent said discharge opening upon which at least some of said mixed swirling fluid leaving said first impact means is also impinged.
Claim 3
Dependent Claim
31 words
The nozzle of claim 1 wherein the fluid introduced by said first fluid inlet means is a gas and the fluid introduced by said second fluid inlet means is a liquid.
Claim 4
Dependent Claim
17 words
The nozzle of claim 1 wherein said first fluid inlet means communicates substantially tangentially with said chamber.
Claim 5
Dependent Claim
39 words
The nozzle of claim 1 wherein the cross sectional dimension of said chamber between said first and second impact means is of substantially smaller diameter than the cross sectional dimension of said chamber upstream of said first impact means.
Claim 6
Dependent Claim
17 words
The nozzle of claim 1 wherein said second impact means is spaced downstream of said discharge opening.
Claim 7
Dependent Claim
62 words
The nozzle of claim 1 wherein said impingement means includes elongate pintle means extending axially of said chamber, said first impact means comprising a flat surface at the upstream end of said pintle means and a plurality of arms extending radially from said flat surface, and said second impact means comprising a disc positioned at the other end of said pintle means.
Claim 8
Dependent Claim
43 words
The nozzle of claim 1 wherein said first impact means is of a dimension substantially equal to the cross sectional dimension of said chamber and, said second impact means is of a dimension smaller than the cross sectional dimension of said discharge opening.
Claim 9
Dependent Claim
20 words
The nozzle of claim 1 wherein said second inlet means communicates with said chamber substantially axially of said swirling fluid.
Claim 10
Dependent Claim
64 words
The nozzle of claim 1 including metering means defining said discharge opening, said metering means having a fluid flow passage therethrough, said impingement means including pintle means extending axially through said passage, said first impact means being positioned at the end of said passage adjacent said chamber and said second impact means being positioned adjacent the other end of said passage but spaced therefrom.
Claim 11
Dependent Claim
11 words
The nozzle of claim 1 wherein said passage comprises a Venturi.
Claim 12
Dependent Claim
145 words
A nozzle for discharging a swirling fluid comprising, a body member defining a fluid chamber therein, a discharge opening in said member for discharging fluid from said chamber, first fluid inlet means communicating eccentrically with said chamber for introducing a fluid into said chamber and inducing a swirling motion in said fluid in said chamber, second fluid inlet means communicating with said chamber for introducing and mixing a fluid into said swirling fluid in said chamber, and impingement means including first impact means in said chamber between said discharge opening and said first fluid inlet means upon which said mixed swirling fluid impinges enroute to said discharge opening and second impact means spaced downstream of said first impact means and said discharge opening adjacent said discharge opening upon which at least some of said mixed swirling fluid leaving said first impact means is also impinged.
Claim 13
Dependent Claim
145 words
A nozzle for discharging a swirling fluid comprising, a body member defining a fluid chamber therein, a discharge opening in said member for discharging fluid from said chamber, first fluid inlet means communicating eccentrically with said chamber for introducing a fluid into said chamber and inducing a swirling motion in said fluid in said chamber, second fluid inlet means communicating with said chamber for introducing and mixing a fluid into said swirling fluid in said chamber, and impingement means including first impact means in said chamber between said discharge opening and said first fluid inlet means upon which said mixed swirling fluid impinges enroute to said discharge opening and second impact means spaced downstream of said first impact means and said discharge opening adjacent said discharge opening upon which at least some of said mixed swirling fluid leaving said first impact means is also impinged.
Claim 14
Dependent Claim
191 words
A nozzle for discharging a swirling fluid comprising, a body member defining a fluid chamber therein, a discharge opening in said member for discharging fluid from said chamber, first fluid inlet means communicating eccentrically with said chamber for introducing a fluid into said chamber and inducing a swirling motion in said fluid in said chamber, second fluid inlet means communicating with said chamber for introducing and mixing a fluid into said swirling fluid in said chamber, and impingement means including elongate pintle means extending axially of said chamber, first impact means in said chamber between said discharge opening and said first fluid inlet means upon which said mixed swirling fluid impinges enroute to said discharge opening, said first impact means comprising a flat surface at the upstream end of said pintle means and a plurality of arms extending radially from said flat surface, and second impact means comprising a disc positioned at the other end of said pintle means and spaced downstream of said first impact means and positioned adjacent said discharge opening upon which at least some of said mixed swirling fluid leaving said first impact means is also impinged.
Claim 15
Dependent Claim
191 words
A nozzle for discharging a swirling fluid comprising, a body member defining a fluid chamber therein, a discharge opening in said member for discharging fluid from said chamber, first fluid inlet means communicating eccentrically with said chamber for introducing a fluid into said chamber and inducing a swirling motion in said fluid in said chamber, second fluid inlet means communicating with said chamber for introducing and mixing a fluid into said swirling fluid in said chamber, and impingement means including elongate pintle means extending axially of said chamber, first impact means in said chamber between said discharge opening and said first fluid inlet means upon which said mixed swirling fluid impinges enroute to said discharge opening, said first impact means comprising a flat surface at the upstream end of said pintle means and a plurality of arms extending radially from said flat surface, and second impact means comprising a disc positioned at the other end of said pintle means and spaced downstream of said first impact means and positioned adjacent said discharge opening upon which at least some of said mixed swirling fluid leaving said first impact means is also impinged.
Claim 16
Dependent Claim
178 words
A nozzle for discharging a swirling fluid comprising, a body member defining a fluid chamber therein, a discharge opening in said member for discharging fluid from said chamber, first fluid inlet means communicating eccentrically with said chamber for introducing a fluid into said chamber and inducing a swirling motion in said fluid in said chamber, second fluid inlet means communicating with said chamber for introducing and mixing a fluid into said swirling fluid in said chamber, and impingement means including first impact means in said chamber between said discharge opening and said first fluid inlet means upon which said mixed swirling fluid impinges enroute to said discharge opening and second impact means spaced downstream of said first impact means and positioned adjacent said discharge opening upon which at least some of said mixed swirling fluid leaving said first impact means is also impinged, said first impact means having a dimension substantially equal to the cross sectional dimension of said chamber and, said second impact means having a dimension smaller than the cross sectional dimension of said discharge opening.
Claim 17
Dependent Claim
178 words
A nozzle for discharging a swirling fluid comprising, a body member defining a fluid chamber therein, a discharge opening in said member for discharging fluid from said chamber, first fluid inlet means communicating eccentrically with said chamber for introducing a fluid into said chamber and inducing a swirling motion in said fluid in said chamber, second fluid inlet means communicating with said chamber for introducing and mixing a fluid into said swirling fluid in said chamber, and impingement means including first impact means in said chamber between said discharge opening and said first fluid inlet means upon which said mixed swirling fluid impinges enroute to said discharge opening and second impact means spaced downstream of said first impact means and positioned adjacent said discharge opening upon which at least some of said mixed swirling fluid leaving said first impact means is also impinged, said first impact means having a dimension substantially equal to the cross sectional dimension of said chamber and, said second impact means having a dimension smaller than the cross sectional dimension of said discharge opening.
Claim 18
Dependent Claim
201 words
A nozzle for discharging a swirling fluid comprising, a body member defining a fluid chamber therein, a discharge opening in said member for discharging fluid from said chamber, first fluid inlet means communicating eccentrically with said chamber for introducing a fluid into said chamber and inducing a swirling motion in said fluid in said chamber, second fluid inlet means communicating with said chamber for introducing and mixing a fluid into said swirling fluid in said chamber, impingement means including first impact means in said chamber between said discharge opening and said first fluid inlet means upon which said mixed swirling fluid impinges enroute to said discharge opening and second impact means spaced downstream of said first impact means and positioned adjacent said discharge opening upon which at least some of said mixed swirling fluid leaving said first impact means is also impinged, and metering means defining said discharge opening, said metering means having a fluid flow passage therethrough, said impingement means including pintle means extending axially through said passage, said first impact means being positioned at the end of said passage adjacent said chamber and said second impact means being positioned adjacent the other end of said passage but spaced therefrom.
Claim 19
Dependent Claim
201 words
A nozzle for discharging a swirling fluid comprising, a body member defining a fluid chamber therein, a discharge opening in said member for discharging fluid from said chamber, first fluid inlet means communicating eccentrically with said chamber for introducing a fluid into said chamber and inducing a swirling motion in said fluid in said chamber, second fluid inlet means communicating with said chamber for introducing and mixing a fluid into said swirling fluid in said chamber, impingement means including first impact means in said chamber between said discharge opening and said first fluid inlet means upon which said mixed swirling fluid impinges enroute to said discharge opening and second impact means spaced downstream of said first impact means and positioned adjacent said discharge opening upon which at least some of said mixed swirling fluid leaving said first impact means is also impinged, and metering means defining said discharge opening, said metering means having a fluid flow passage therethrough, said impingement means including pintle means extending axially through said passage, said first impact means being positioned at the end of said passage adjacent said chamber and said second impact means being positioned adjacent the other end of said passage but spaced therefrom.
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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) | 1975-09-26 | 1976-03-27 | 1976-09-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-09-26 | 1980-03-27 | 1980-09-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-09-26 | 1984-03-27 | 1984-09-26 | $7700.00 | Window Closed / Lapsed |