US2841442A - Spray devices - Google Patents

Spray devices Download PDF

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Publication number
US2841442A
US2841442A US56934756A US2841442A US 2841442 A US2841442 A US 2841442A US 56934756 A US56934756 A US 56934756A US 2841442 A US2841442 A US 2841442A
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Prior art keywords
nozzle
spray
deflector
plate
cover
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Jr Lee Skipwith
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Jr Lee Skipwith
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B05SPRAYING OR ATOMISING IN GENERAL; APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05BSPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B7/00Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
    • B05B7/02Spray pistols; Apparatus for discharge
    • B05B7/12Spray pistols; Apparatus for discharge designed to control volume of flow, e.g. with adjustable passages
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B05SPRAYING OR ATOMISING IN GENERAL; APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05BSPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B7/00Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
    • B05B7/24Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas with means, e.g. a container, for supplying liquid or other fluent material to a discharge device
    • B05B7/2402Apparatus to be carried on or by a person, e.g. by hand; Apparatus comprising containers fixed to the discharge device
    • B05B7/244Apparatus to be carried on or by a person, e.g. by hand; Apparatus comprising containers fixed to the discharge device using carrying liquid for feeding, e.g. by suction, pressure or dissolution, a carried liquid from the container to the nozzle
    • B05B7/2443Apparatus to be carried on or by a person, e.g. by hand; Apparatus comprising containers fixed to the discharge device using carrying liquid for feeding, e.g. by suction, pressure or dissolution, a carried liquid from the container to the nozzle the carried liquid and the main stream of carrying liquid being brought together downstream of the container before discharge

Description

y 9 3958 L. SKKPWITH, JR 2,841,442

SPRAY DEVICES Filed March 5, 195a Fiel- 10 EEC-5.2 7 1 ,12 9 12 Patented July 1, 1958 Petersburg,

The present invention relates to improvements in spray devices in which nozzles of difierent sizes may be selectively employed in conjunction with an adjustable deflector whereby it is possible to provide either a fan-like spray or a jet or full stream of desired range in a spraying operation. More particularly, the invention relates to improvements in hose Sprayers by which material to be applied is aspirated from a container, and improved means are provided on the cover of the container for altering at will the form of a projected stream of the material by interchange of nozzles and by manipulation of a separate highly eftective deflector.

in conventional spray devices of the aspirating type, a nozzle and deflector are generally rigidly combined in a unit. The deflector in such a unit is not adjustable, and the nozzle in itself is not readily replaceable, or at least replacement or interchange cannot be performed without detachment of the deflector. These and other deficiencies detract from the practicality of spray devices particularly of the types described hercinbelow.

An object of the present invention is to provide improvements in the arrangement of a nozzle and a deflector means in a spray device. A further object is to provide improved means for conveniently and effectively adjusting a spray formation depending upon type and relative position of the surface to be sprayed, and on the particular purpose of the spray application. Gther objects will be apparent from the following detailed description of the invention, and the accompanying drawings included for purposes of illustration.

In the drawings, Fig. l is an elevational view, partly in section, of the upper portion of a container such as a jar with a screw cap or cover on which is mounted, as shown, a preferred form of apparatus associated in the present invention; Fig. 2 is a vertical section of a portion of the apparatus shown; Fig. 3 is a top plan view of means on the cover for the container shown in Fig. 1; and Figs. 4, 5, and 6 are fragments of the top plan view illustrating a deflector means in several diflerent positions.

Referring more specifically, and by way of example, to the drawing, the reference character 1 designates a container, such as a Mason jar, for material to be sprayed, including for instance, liquid or soluble (powdered) insecticides, fungicides, plant foods, weed killers, cleaning compounds, or coating compositions, or others. While other types of containers may be used, a Mason jar has advantages in that it is a standard, inexpensive article, widely available, and readily replaceable if broken. A removable metal cap or cover 2 that is screwed onto the mouth portion 3 of the jar is also standard for Mason jars provided with screw threads at the mouth. This type of cover for the container is not essential, other forms being adaptable, though the spraying elements to be described are particularly suitable and preferred for use in the form shown. It is found that for effective spraying, the means provided can be conveniently attached to and spaced and arranged Within the area available on the outer flat surface 4 of the standard cover, as shown in Figs. 1 and 3.

A valve chamber 5 with an outlet nipple 6, and a hose coupling 7 with a pipe connection 8 between the coupling and the valve chamber, serve as means for directing and controlling a stream of liquid from a source of supply through a nozzle 9 detachably mounted on the nipple 6. The valve chamber is preferably rigidly attached to the top 4 of the cover 2 in a suitable manner and the combined elements are positioned diametrically thereon. The valve in the chamber 5 is of a well-known or suitable type and is controlled by a handle Ill in position for manipulation during spraying. It is not essential for the spraying operation that the chamber 5 shall contain a valve or that a valve be placed between the coupling '7 and the nipple 6. In a portable spray, a valve in this position serves as a convenience for the operator. Any passage means to which a nozzle may be connected can serve in directing liquid to the nozzle.

The nozzle 9 is of a type usable for aspirating sprayable material from a container. in the nozzle shown, which consists of a cylindrical piece of metal or other suitable substance, a socket ll is provided at one end for insertion of the nipple 6 for directing liquid from the valve chamber 5. When the nozzle 9 is in position the center of the outer end of this nipple is in alignment with the axis along which a passage 12 extends longitudinally from the socket ii to the opposite end 13. A suitable packing means, such as a rubber ring 14, is provided on the nipple 6 to prevent leakage.

Extending laterally from the passage 12 in the nozzle is a tubular connector 15 to which is connected a suction tube 16 that extends downwardly into the jar i when the nozzle is in place for spraying. The suction tube 1 may be made of metal, glass, or preferably plastic, such as polyethylene.

The upper end of the tube 16 fits tightly on the end 17 of the connector 15 and abuts against a flange 18 thereon. For purposes hereinafter indicated, a space 19 is provided between the flange l8 and the adjacent outer cylindrical surface of the nozzle 9. The connector 15 and the tube 16 can be separately disconnected, if desired, so that one or the other or both may be replaced. These parts can be made to fit together so that they are leakproof, or the junctures may be rendered leakproof in any approved manner.

An opening 2% is provided in the cover 2 through which the tube 16 is inserted. The opening 20 is of suificient size to permit mounting in place on the nipple \5 of the nozzle 9 with its attached tube 16, and to permit removal thereof.

A plate 21, having an extension 22 that provides a deflecting surface 23, here termed a deflector, is attached to the cover 2 by a fastening means 24 which serves as an axis about which the plate 21 is rotated, and the deflector 23 is swung in or out of the path of a stream from the nozzle 9. The plate 21 serves in adjusting the position of the deflector, and to lock in place as well as to release a separately replaceable nozzle.

In the particular means shown, the plate 2 lies flatly against the top -5 of the cover 2. The plate has a camlike or circular edge 25, and two straight edges 26 and 27 meeting at 28 at right angles to each other and intersecting the edge 25 at 29 and 39. The circular edge 25 is in the form of an arc of a circle with its center at the axis 24. The edges 26 and 27 are formed by secants of the circle, the point of the intersection lying beyond the axis 24.

The deflector 23, preferably in the form of a flat, rigid, narrow, finger-like strip, extends from the edge 26 in a plane at an angle to the plane of the plate 21. One side edge of the deflector is in line with the edge 27 of theplate 21. The outer free end of the deflector has a rounded edge 32. When the deflector 23 is in the position shown in Fig. 1, the longitudinal center line thereof, the axis 24, and the passage 12 in the nozzle 9 are in a plane perpendicular-to the topssurface 4 of the cover..?.. In such position, the deflector is in the path of the stream from the nozzle, andthe position of the edge 32 in'relation thereto, as well as the position of the area of impingement of the stream on the .deflector, and the angle 5 of incidence of. the stream from the'nozzle, are such that a preferred'spray effect is obtained,ras further explained hereinbelow. i V Thenozzle 9, when mounted on the nipple 6 in position for spraying, as seen in Fig. l, is held in spaced relation to: the cover 2 so that when the plate 21 is rotated about the axis 24 it can pass between the cover 2 and the nozzle 9, and the curved edge 25 of the plate can be moved into the space 19 between the flange 18 and the nozzle to. prevent removal of the nozzle while spraying. As shown in Figs. 3 to 6 inclusive, the plate 21' and the combined deflector 23 are freely rotatable about the axis 24 and are movable into and out of various positions. In preparingthe spray device for operation, the active substance to be sprayed is charged into the jar 1, and the cap or cover 2 is screwed on with the assembly thereon of the plate 21, deflector 23, valve chamber 5, nipple 6, and hose coupling 7, arranged as shown in Fig. 3. The nozzle 9 is mounted on one end of the tube 16 and is connected thereto by means'of the connector The plate 21 is turned to bring the straight edge 27 thereof into position next adjacent the opening 20, at right angles to the line of travel of liquid conducted to'the nozzle, thus uncovering the opening and permitting the insertion of the tube 16 into the jar 1. The socket end of thenozzle 9 is mounted on the nipple 6, thereby placing the nozzle in spraying position.

be turned clockwise from the position shown 'in Fig. 3 to that shown in Fig. 4 to bring the circular edge thereof into the space 19, thus locking the nozzle 9 and the 'tube 16 in place and also bringing the deflector 23 into position for effectively modifying the spray projected from the nozzle. If desired, this can be done before screwing the cover on the jar 1. With the coupling 7 screwed onto the end of a hose or tube for feeding liquid to the spray, the device is ready for use in a spraying operation.

As indicated above, Fig. 4, inassociation'with Fig. 1, illustrates the arrangement of elements for providing a fan-shaped spray. Spray material having been charged into the jar 1, and water, for instance, having been admitted under pressure to the valve chamber 5, the rate of flow through the nozzle is regulated 'or adjusted by manipulating the valve handle 10. The water passing through the nozzle is mixed with the spray material, and

the mixture is projected'againstthe deflector 23.

The plate 21 may then In the use-of the means to direct the spray and to project spray material in various directions provided the op'en end 35 ofthe tube 16 is within the body of a mass of spray material in the jarl, the deflector 23 when. in the position shown in Figs. land 4 conveniently serves to direct the spray more easily toward downwardlyfacing surfaces. Deflection downwardly can also be provided for in projecting a spray onto upwardly facing surfaces.

Deflection may be omitted either'initially or in the course of a spraying operation'by moving the deflector 23 out of the pathof the stream from the nozzle 9. This is done'preferably by rotating the plate 21 and deflector 23 clockwise toward the position shown in Fig. 5

so that the plate 21 will still maintain the nozzle 23 and tube 16 locked in place; When deflection is omitted, the device is particularly useful in spraying distant surfaces, as for instancein the spraying of tall trees and ornainentals.

To substitute one nozzle for another, the plate 21 and deflector 23 are rotated toward the position shown in ing the combined locking means and deflector may be.

It is found possible to obtain the desired and preferred eifect on the stream from the nozzle 9 with the deflector 23 and other elements supported within the confines of the surface area on a cover of a Mason jar. The area of impingement on the inclined deflector surface is positioned at such a distance from the nozzleopening 34, and the deflector surface is at such an angle that the deflected stream moves in. a forward direction and is spread laterally chiefly in a plane in fanlike form. The angle is such that spattering in other directions is substantially or completely avoided and the farmed spray form is obtained with substantially no interference or interruption from the side edges or the tip' end 32 of the deflector strip 22. r v 7 V With increase or decrease of pressure and volume rate of flow in the stream from the nozzle, the range of the spray can be varied while its fan-shaped form: is maintained. The particles in the spray are dispersed and are spaced to a greater or lesser degree but within limits that enable an operator to direct the sprayed material within the area of surfaces being sprayed, thus preventing bypass and hence avoiding waste of the material.

i Fig. 6, thereby moving the plate out of the space 19 and uncovering the opening '20; The nozzle 9 is pulled off the nipple 6 and withdrawn with the attached tube 1 6. The substituted nozzle with tube is mounted and locked in place. Nozzles with a passage 12 of increased diameter deliver a coarser spray than a nozzle with a passage 12 of smaller diameter; A fine fan sprayv pro- :duced with a nozzle with a passage 12 of small diameter,

is preferred, for instance, in sprayingflowers andsmall' plants and shrubs. A coarse fan spray is recommended,- for instance, in applying spray material to lawns, or when using wettable powders on flowers and other plant growths, or when applying cleaning compounds, for instance, to cars, windows and walls. 5

In replenishing thesupply of :spray material in the jar 1, the aspirating liquidstream, water for instance, is cut ed at its source orby moving the handle 10 to close a valve in the chamber '5; and the jar 1 is unscrewed from the cover 2 while the assembly on the cover is kept intact. If the opening 20 in a cover is sufliciently large to pour spray material conveniently. into a container'Lthe' plate 21- is rotated to the position shown in Figs.r3 and 6 to unlock the nozzle, remove it with the tube 16,-and to uncover the opening 20. j V

The plate 21 and the extension 22 that serve in forms'tamped out of sheet metal in one piece. The metal may be flexible and bendable and yet sufliciently rigid to mainplified form that can be produced at a relatively low cost. Means are advantageously and conveniently arranged for providing highly efiective sprays that are readily changeable depending on the spray materials employed and on the surfaces to which they are applied.

The invention hereinabove set forth is embodied in particular form and manner but may be variably embodied within thescope of the claims hereinafter made.

What is claimed is: f V

1. In a spray device comprising a container for spray material and a removable cover for the container, the said cover having attached to the normally exposed surface thereof a valve chamber connected to a coupling means on the inlet side of said chamber, a removable nozzle mounted on the outlet of said chamber, an aspirating tube connected to said nozzle and passing through' said illustrated, though it is feasible chamber and nozzle, a rotatable plate attached to said cover for locking the nozzle and tube in place in a spraying operation and for releasing the said nozzle and tube for separate removal thereof by rotation of said plate, and a deflector attached to said plate movable in and out of the line of the stream from the nozzle by rotation of said plate to selectively provide a fan-shaped spray and a jet spray respectively while maintaining said nozzle and tube locked in position.

2. In a spray device, means for conducting and directing a stream of liquid, a removable spray nozzle, mounted on said means, for spraying said liquid, a removable tube connected to said nozzle for conducting spray material from a supply thereof to said nozzle by aspiration effected by said liquid stream, said tube having connecting means for connecting it to said nozzle, said connecting means having a groove adjacent said nozzle, a plate having an edge movable in said groove to lock said nozzle in place relative to said supply of spray material during a spraying operation and movable out of said groove to release said nozzle for removal thereof, and a deflector integral with and movable with said plate and movable into and out of the path of the stream projected from the nozzle to vary selectively the shape of the spray.

3. In a spray device including a container for fluid material to be projected onto a surface, a removable cover for said container, said cover having associated therewith a nozzle and connecting means for directing a stream through said nozzle, a suction tube connected to said nozzle and extending from the nozzle into the container for withdrawing said material from said container for projection in said stream, the said nozzle being separable from said connecting means for selectively substituting therefor another nozzle; the said device having a plate attached to the said cover for said container and movable thereon about an axis, and a deflector extending from said plate and movable thereby in and out of the path of said stream from said nozzle to cause particles of said material which impinges on the deflector to fan out from the line of said stream in suspension, the said plate having a cam-like edge for locking the said nozzle and said suction tube in place.

References Cited in the file of this patent UNITED STATES PATENTS 2,761,734 Farmer Sept. 4, 1956

US2841442A 1956-03-05 1956-03-05 Spray devices Expired - Lifetime US2841442A (en)

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3050261A (en) * 1961-04-24 1962-08-21 Robert Clayton Littlefield Spray pattern control mechanism for insecticide sprayer
US3063725A (en) * 1959-02-26 1962-11-13 Atkinson Guy F Co Shaft seal
US3088679A (en) * 1960-10-14 1963-05-07 Sprayers & Nozzles Inc Sprayers
US4566632A (en) * 1983-05-05 1986-01-28 Nelson Irrigation Corporation Step-by-step rotary sprinkler head with improved stream diffusing assembly
US5007588A (en) * 1988-12-08 1991-04-16 Hunter-Melnor, Inc. Aspiration-type sprayer

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2761734A (en) * 1955-06-03 1956-09-04 Farmer Alfred Spray device

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2761734A (en) * 1955-06-03 1956-09-04 Farmer Alfred Spray device

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3063725A (en) * 1959-02-26 1962-11-13 Atkinson Guy F Co Shaft seal
US3088679A (en) * 1960-10-14 1963-05-07 Sprayers & Nozzles Inc Sprayers
US3050261A (en) * 1961-04-24 1962-08-21 Robert Clayton Littlefield Spray pattern control mechanism for insecticide sprayer
US4566632A (en) * 1983-05-05 1986-01-28 Nelson Irrigation Corporation Step-by-step rotary sprinkler head with improved stream diffusing assembly
US5007588A (en) * 1988-12-08 1991-04-16 Hunter-Melnor, Inc. Aspiration-type sprayer

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