US3632046A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Spray nozzle
Assignee: Individual
•
Filing: 1968-04-23
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Granted: 1972-01-04
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Expires: 1988-04-23
Abstract
Abstract This disclosure is directed to a spray nozzle device of the general type in which liquid or air, or a combination thereof, from a source under superatmospheric pressure, are supplied to the nozzle and discharged therefrom to an area of application under the direction and control of an operator. The nozzle of the device has an internal duct arrangement by which liquid agents, such as paint, liquid detergent, insecticide, and the like, which are to be applied to an area, are drawn from a container by the Venturi effect produced by the liquid or air from the source during its passing through the nozzle. A manually operable valve is connected between the nozzle and container and is adjustable by progressive uninterrupted minute increments of change in the effective size of the valve opening for controlling the education of the liquid agent from the container. The sizes and relative positions, and nature of the ducts are such as to greatly increase the efficiency of eduction of the agent, and the mixture and application of the liquid and agent, and to control more precisely the rate of eduction of the agent for a given selected supply of liquid, over a much wider range than heretofore obtained. A flaring discharge passage in the nozzle and a perforated shield are arranged for causing the mixture of liquid and agent to discharge as divergent individual small jet streams and as a single concentrated stream, selectively.
Inventors
- 👤 Robert W Hengesbach
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 08:19
CPC Classifications
B; B05; B05B; B05B7/00; B05B7/24; B05B7/2402; B05B7/244; B05B7/2443; B05B7/2405; B05B7/2424
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
386 words
A spray nozzle device comprising a body having an inlet duct, a discharge duct, and an eduction duct; said ducts being of circular cross section and the inlet duct and discharge duct being in coaxial end to end communication with each other; said eduction duct extending transversely of the discharge duct and having an outlet opening wholly into the discharge duct at the juncture of the inlet and discharge ducts; said inlet duct being of less diAmeter than the discharge duct and the eduction duct being of less diameter than the inlet duct; the portion of the periphery of the eduction duct outlet closest to said juncture being close to said juncture; said body being arranged to exclude induction of fluid thereinto other than through said eduction duct; liquid control means for connecting the inlet duct of the body to a source of fluid under superatmospheric pressure and including a manually settable liquid flow adjusting valve operable to adjust the flow of liquid to the inlet duct in progressive uninterrupted minute increments and decrements, selectively; gaseous media control means for connecting the inlet duct of the body to a source of pressurized gaseous media and including a manually settable gaseous flow adjusting valve operable to adjust the flow of pressurized gaseous media to the inlet duct in progressive uninterrupted minute increments and decrements, selectively; eduction control means for connecting the inlet of the eduction duct to a container for liquid agent which is to be educted from the container, and including a manually settable eduction adjusting valve in advance of the outlet of the eduction duct and operable to adjust the flow agent from the container into the discharge duct in progressive uninterrupted minute increments and decrements, selectively; and said valves being operable independently of each other; characterized in that: said gaseous media control means include an intermediate body having a through duct for conducting liquid from the liquid control means to the inlet duct, and having a gaseous media duct to receive gaseous media under pressure from a source and discharge the gaseous media into the liquid in the through duct in advance of the discharge duct; and said ducts in the intermediate body converge with each other at a small angle in the direction of flow through the intermediate body toward the outlet duct.
Claim 2
Dependent Claim
386 words
A spray nozzle device comprising a body having an inlet duct, a discharge duct, and an eduction duct; said ducts being of circular cross section and the inlet duct and discharge duct being in coaxial end to end communication with each other; said eduction duct extending transversely of the discharge duct and having an outlet opening wholly into the discharge duct at the juncture of the inlet and discharge ducts; said inlet duct being of less diAmeter than the discharge duct and the eduction duct being of less diameter than the inlet duct; the portion of the periphery of the eduction duct outlet closest to said juncture being close to said juncture; said body being arranged to exclude induction of fluid thereinto other than through said eduction duct; liquid control means for connecting the inlet duct of the body to a source of fluid under superatmospheric pressure and including a manually settable liquid flow adjusting valve operable to adjust the flow of liquid to the inlet duct in progressive uninterrupted minute increments and decrements, selectively; gaseous media control means for connecting the inlet duct of the body to a source of pressurized gaseous media and including a manually settable gaseous flow adjusting valve operable to adjust the flow of pressurized gaseous media to the inlet duct in progressive uninterrupted minute increments and decrements, selectively; eduction control means for connecting the inlet of the eduction duct to a container for liquid agent which is to be educted from the container, and including a manually settable eduction adjusting valve in advance of the outlet of the eduction duct and operable to adjust the flow agent from the container into the discharge duct in progressive uninterrupted minute increments and decrements, selectively; and said valves being operable independently of each other; characterized in that: said gaseous media control means include an intermediate body having a through duct for conducting liquid from the liquid control means to the inlet duct, and having a gaseous media duct to receive gaseous media under pressure from a source and discharge the gaseous media into the liquid in the through duct in advance of the discharge duct; and said ducts in the intermediate body converge with each other at a small angle in the direction of flow through the intermediate body toward the outlet duct.
Claim 3
Dependent Claim
538 words
A spray nozzle device comprising a body having an inlet duct, a discharge duct, and an eduction duct; said ducts being of circular cross section and the inlet duct and discharge duct being in coaxial end to end communication with each other; said eduction duct extending transversely of the discharge duct and having an outlet opening wholly into the discharge duct at the juncture of the inlet and discharge ducts; said inlet duct being of less diameter than the discharge duct and the eduction duct being of less diameter than the inlet duct; the portion of the periphery of the eduction duct outlet closest to said junction being close to said juncture; said body being arranged to exclude induction of fluid thereinto other than through said eduction duct; liquid control means for connecting the inlet duct of the body to a source of fluid under superatmospheric pressure and including a manually settable liquid flow adjusting valve operable to adjust the flow of liquid to the inlet duct in progressive uninterrupted minute increments and decrements, selectively; gaseous media control means for connecting the inlet duct of the body to a source of pressurized gaseous media and including a manually settable gaseous flow adjusting valve operable to adjust the flow of pressurized gaseous media to the inlet duct in progressive uninterrupted minute increments and decrements, selectively; eduction control means for connecting the inlet of the eduction duct to a container for liquid agent which is to be educted from the container, and including a manually settable eduction adjusting valve in advance of the outlet of the eduction duct and operable to adjust the flow agent from the container into the discharge duct in progressive uninterrupted minute increments and decrements, selectively; and said valves being operable independent of each other; characterized in that: said body comprises three separate and distinct body units; one unit comprises a liquid supply body unit having a Liquid supply duct portion, and said liquid flow adjusting valve is connected to and carried by the liquid supply body unit; a second unit comprises a gaseous media supply body unit having a liquid supply duct portion, and a gaseous media supply duct having its outlet opening into the liquid supply duct portion; said gaseous media flow-adjusting valve is connected to and carried by the gaseous media supply body unit; a third unit comprises an eduction supply body unit in which said inlet and discharge units and eduction duct are located; said eduction adjusting valve is connected to and carried by the eduction supply body unit; connecting means are provided on said units, respectively, which detachably connect them together with the liquid supply duct portion of said one unit connected at its outlet end with the inlet of the liquid supply duct portion of the second unit, and with the liquid supply duct portion of the second unit connected at its outlet end with said inlet passage; and said connecting means on the one unit and third unit are operable to detachably connect said one and third units directly together in the absence of the second unit with the liquid supply duct portion of said one unit connected at its outlet to said inlet duct of the third unit.
Claim 4
Dependent Claim
538 words
A spray nozzle device comprising a body having an inlet duct, a discharge duct, and an eduction duct; said ducts being of circular cross section and the inlet duct and discharge duct being in coaxial end to end communication with each other; said eduction duct extending transversely of the discharge duct and having an outlet opening wholly into the discharge duct at the juncture of the inlet and discharge ducts; said inlet duct being of less diameter than the discharge duct and the eduction duct being of less diameter than the inlet duct; the portion of the periphery of the eduction duct outlet closest to said junction being close to said juncture; said body being arranged to exclude induction of fluid thereinto other than through said eduction duct; liquid control means for connecting the inlet duct of the body to a source of fluid under superatmospheric pressure and including a manually settable liquid flow adjusting valve operable to adjust the flow of liquid to the inlet duct in progressive uninterrupted minute increments and decrements, selectively; gaseous media control means for connecting the inlet duct of the body to a source of pressurized gaseous media and including a manually settable gaseous flow adjusting valve operable to adjust the flow of pressurized gaseous media to the inlet duct in progressive uninterrupted minute increments and decrements, selectively; eduction control means for connecting the inlet of the eduction duct to a container for liquid agent which is to be educted from the container, and including a manually settable eduction adjusting valve in advance of the outlet of the eduction duct and operable to adjust the flow agent from the container into the discharge duct in progressive uninterrupted minute increments and decrements, selectively; and said valves being operable independent of each other; characterized in that: said body comprises three separate and distinct body units; one unit comprises a liquid supply body unit having a Liquid supply duct portion, and said liquid flow adjusting valve is connected to and carried by the liquid supply body unit; a second unit comprises a gaseous media supply body unit having a liquid supply duct portion, and a gaseous media supply duct having its outlet opening into the liquid supply duct portion; said gaseous media flow-adjusting valve is connected to and carried by the gaseous media supply body unit; a third unit comprises an eduction supply body unit in which said inlet and discharge units and eduction duct are located; said eduction adjusting valve is connected to and carried by the eduction supply body unit; connecting means are provided on said units, respectively, which detachably connect them together with the liquid supply duct portion of said one unit connected at its outlet end with the inlet of the liquid supply duct portion of the second unit, and with the liquid supply duct portion of the second unit connected at its outlet end with said inlet passage; and said connecting means on the one unit and third unit are operable to detachably connect said one and third units directly together in the absence of the second unit with the liquid supply duct portion of said one unit connected at its outlet to said inlet duct of the third unit.
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) | 1975-01-03 | 1975-07-05 | 1976-01-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-01-03 | 1979-07-05 | 1980-01-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-01-03 | 1983-07-05 | 1984-01-04 | $7700.00 | Window Closed / Lapsed |