Patent US3602434A successfully refreshed from Google Patents.
US3602434A
Expired / Lapsed
US
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Liquid discharge nozzle
Assignee: Rain Jet Corp
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Filing: 1970-05-01
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Granted: 1971-08-31
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Expires: 1990-05-01
Abstract
Abstract A liquid discharge nozzle having no moving parts, includes a hollow body defining a liquid inlet at one end and an outlet opening at the other end. The body has an internal chamber arranged in communication with both the inlet and outlet ends of the body. A plug, having substantial length between opposite end surfaces, is disposed across the chamber inwardly of the bodyoutlet end and grooves in the sidewalls of the plug define constricted liquid-outlet means from the body. An air duct extends through the plug from adjacent the body outlet to the exterior of the body between the plug and inlet end of the body.
Inventors
- 👤 John O Hruby Jr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 06:10
CPC Classifications
B; B05; B05B; B05B17/00; B05B17/08; B05B7/00; B05B7/02; B05B7/06; B05B7/062; B05B7/063; B05B7/065
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
249 words
An aerating liquid-discharge nozzle comprising an elongate body having opposite open ends defining a duct therethrough between a liquid inlet opening defined by one of said open ends of the body and the other of said open ends of the body; a plug having substantial length between opposite ends thereof relative to the diameter of the duct disposed across the duct adjacent the other open end of the body and secured from movement along the length of the body; the plug being engaged around its periphery with the inner walls of the duct; the plug having liquid flow passage means therethrough comprised by a plurality of grooves formed in the sidewalls of the plug and communicating between the opposite ends of the plug; the grooves and the inner walls of the body cooperating to define a corresponding plurality of liquid outlet passages; the liquid-flow passage means having an aggregate cross-sectional area, at least adjacent the other end of the body, substantially less than the cross-sectional area of the duct at the location of the plug in the duct; the surface of the plug adjacent the other end of the body being substantially normal to the elongate extent of the plug peripherally of the opening of each groove to said surface; and air duct means communicating through the plug from the exterior of the body to the end of the plug adjacent the other end of the body for mixture of air passed therethrough with liquid discharged from the nozzle.
Claim 2
Dependent Claim
249 words
An aerating liquid-discharge nozzle comprising an elongate body having opposite open ends defining a duct therethrough between a liquid inlet opening defined by one of said open ends of the body and the other of said open ends of the body; a plug having substantial length between opposite ends thereof relative to the diameter of the duct disposed across the duct adjacent the other open end of the body and secured from movement along the length of the body; the plug being engaged around its periphery with the inner walls of the duct; the plug having liquid flow passage means therethrough comprised by a plurality of grooves formed in the sidewalls of the plug and communicating between the opposite ends of the plug; the grooves and the inner walls of the body cooperating to define a corresponding plurality of liquid outlet passages; the liquid-flow passage means having an aggregate cross-sectional area, at least adjacent the other end of the body, substantially less than the cross-sectional area of the duct at the location of the plug in the duct; the surface of the plug adjacent the other end of the body being substantially normal to the elongate extent of the plug peripherally of the opening of each groove to said surface; and air duct means communicating through the plug from the exterior of the body to the end of the plug adjacent the other end of the body for mixture of air passed therethrough with liquid discharged from the nozzle.
Claim 3
Dependent Claim
28 words
A nozzle according to claim 1 wherein the plug is spaced along the duct toward the one end of the body from the other end of the body.
Claim 4
Dependent Claim
24 words
A nozzle according to claim 1 wherein the ends of the grooves at opposite ends of the plug are arranged in substantially identical patterns.
Claim 5
Dependent Claim
21 words
A nozzle according to claim 3 wherein the grooves are parallel to each other and to the length of the duct.
Claim 6
Dependent Claim
26 words
A nozzle according to claim 1 wherein the grooves have sidewalls which intersect the plug sidewalls and the walls of the duct at a substantial angle.
Claim 7
Dependent Claim
39 words
A nozzle according to claim 5 wherein the proximate walls of adjacent grooves at the periphery of the plug are spaced apart along said periphery a distance at least equal to substantially the width of one of the grooves.
Claim 8
Dependent Claim
18 words
A nozzle according to claim 1 wherein the grooves are spaced uniformly around the circumference of the plug.
Claim 9
Dependent Claim
27 words
A nozzle according to claim 1 wherein the grooves provide the only flow path of liquid from the liquid inlet opening to the exterior of the body.
Claim 10
Dependent Claim
63 words
A nozzle according to claim 1 wherein the air duct means comprises an air duct at one end thereof communicating with the exterior of the body at a location between the plug and the inlet end of the body and at the other end thereof opening axially of the body through the end of the plug adjacent the outlet end of the body.
Claim 11
Dependent Claim
46 words
A nozzle according to claim 9 wherein the air duct extends from said one end coaxially of the plug to a location between the plug and the inlet end of the body where the air duct branches laterally into communication with the exterior of the body.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-08-30 | 1975-03-01 | 1975-08-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-08-30 | 1979-03-01 | 1979-08-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-08-30 | 1983-03-01 | 1983-08-31 | $7700.00 | Window Closed / Lapsed |