US2149929A - Spraying device - Google Patents

Description

March 7, 1939. .1. c. PLASTARAS SPRAYING DEVICE Filed Aug. 23, 1934 3 Sheets-Sheet l ATTORNEYS March 7, 1939. J. c. PLASTARAS SPRAYING DEVICE 3 Sheets-Sheet 2 Filed Aug. 23, 1934 INVENTOR M W A TTORNE VS March 7, 1939. J} c PLASTARAS SPRAYING DEVICE Filed Aug. 23, 1934 5 Sheets-Sheet 3 A TTORNE Yd .Patented Mar. 7, 1939 SPRAYING DEVICE James C. Plastaras, Laurelton, N. Y., assignor to Wil-X-Mfg Corporation, a corporation of New York . Application August 23,

23 Claims.

This invention relates to spraying devices of the general organization, wherein liquid from a container is expelled through a nozzle under the influence of a fluid, such as gas, normally stored 5' under pressure in a sealed cartridge which, in use, is punctured to permit access of the gas to the container to-build up the pressure required to provide the expelling force.

The invention, as one of its features, contemplates the provision of ahigh pressure chamber wherein the cartridge containing the fluid under pressure is housed, and which is connected with the liquid container through a pressure regulating valve that permits the pressure in the container tobe maintained constant throughout the entire discharge of liquid, and at a value substantially less than that in the high pressure chamber, with the result that a lighter gage metal may be used in the construction of the liquid container than otherwise would be required. The control of the initial expansion of the gas, as it leaves the cartridge, also prevents the solidifying of the gas and the consequent stopping up of the discharge aperture, a disadvantage which has been prevalent in many spray-' ing devices of this character.

Another feature of the invention contemplates the provision of safety'mechanism for preventing the pressure in the container from exceeding a predetermined value in the event the pressure regulator fails properly to operate.

The invention further contemplates a discharge nozzle pivotally mounted upon the container and arranged to extend longitudinally of the container in its inoperative position and lat erally of the container in its operative position, and which automatically actuates the puncturing device as it moves to operative position; and also a safetydevice for the puncturing mechanism normally acting to hold the latter against operation when the nozzle is in inoperative position,

and the container, which normally remain in.

nozzle is moved to its operative position to permit the passage of liquid and gas through their 55 respective connections; and an adjustable nozzle 1934, Serial No. 741,028

for producing a round or a flat spray as desired.

Referring to the drawings:

Fig. I is a vertical section through a spraying device constructed in accordance with the invention;

Fig. 2 is a top plan view of the spraying device shown in Fig. 1;

Fig. 3 is a partial vertical section on line 3-3 I in the connections between the nozzle and container and between the cartridge and container, and the pressure regulator in partial section;

Fig. 4 is a partial vertical section on line 4-4 of Fig. 2, showing the pressure regulator in detail;

Fig. 5 is a horizontal section on line 5-5 of Fig. 4, showing certain details of construction 01. the pressure regulator;

Fig. 6 is a section on line 6--6 of Fig. 1, showing details of construction of the nozzle;

Fig. '7 is a vertical section on line 1--'| of Fig. 6; and

Fig. 8 is a horizontal section on line 8-4 of Fig. 6.

The liquid to be discharged is stored in a closed container A, of cylindrical form and provided with a bowl-shaped bottom A to which there is fastened a cylindrical base A for supporting the container in upright position, and which is tongued and grooved to the, cylindrical container adjacent the lower end thereof and formed at its lower edge with a head A to provide rigidity and strength.

The container A is closed at the top by a cast metal cover A on which the operating parts. 'of the spraying device are mounted, and which is formed (see Figs. 1 and 2) with a pair of spaced lugs a.- projecting beyond the Wall of the container and supporting a U-shaped--handle A which facilitates handling the spraying devicewhen in use. Also in the cover thereis provided a capped opening a to permit refilling the container when the charge has been used up.

Pivotally mounted on the container is a discharge nozzle B arranged, when in its inoperative position, to extend longitudinally of the container, as shown in Fig. 1, and adapted to be moved laterally of the container to a substantially horizontal position wherein it is operative I porting member 3 (oflset to permit the tube B to. clear the container A) and formed with a passageway b communicating at one end with the tube B and at its other end (Fig. 3) with a pasinternal surfaces formed hexagonally to lit the shaft B and their outer surfaces.- formed cylindrically to permit rotation in the trunnions. The sleeve membersb are seated at their inner ends in recesses I) provided in the nozzle supporting member B and extend through the walls of the trunnion supports C, C and through a pair of bushings c threaded into the walls of said supports at the inner faces thereof. Suitable packing is provided at the'inner ends of the bushings 0 and at the bases of the recesses b in the tube supporting member 3* to make the pivotal mounting fluid-tight. 5

The hexagonal shaft B at its left end (Fig. 3)

- terminates in a chamber C which constitutes part of the liquid connection between the container A and the nozzle B, and which is formed partly by the bell-shaped trunnion support C and partly by a bell-shaped cap C threaded to the trunnion support and formed in its outer portion with an octagonal head to facilitate removal by a wrench. At its opposite end, the hexagonal shaft B terminates in a similar chamber 0* constituting part of the passageway between the cartridge and the container, and which is somewhat like the other chamber 0 being formed partly by the bell-shaped trunnion support C and partly by a bell-shaped cap C threaded thereto, but differing from the chamber C in that it is provided with a safety relief valve C for a purpose hereinafter set forth. Suitable packing is provided at the threaded joints between the trunnion members. and the caps to make the chambers C, C fluid-tight, and the caps are positioned at an angle with respect to the trunnion members (see Fig; 2) for the purpose of conserving space.

-Within the container A, there is provided a long shell D of heavy metal, closed at the bottom and threaded at the top into a tubular boss A formed integrally with the top member A of the container, and which provides a pressure chamber D for a cartridge D? containing fluid under 'pressure. which expels the liquid from the container A. The chamber D is closed at the top by a bushing D threaded into the boss A at its upper end and formed with a flanged engaging the boss A at the top, and a hole d centrally located to guide a piercing rod D arranged for limited up and down movement and acting when depressed to puncture the cartridge D The piercing rod D is further guided in its up and down movement by a small bushing (1 threaded into the larger bushing D at the top, and a washer (1 held in place by a hollow nut or thimble d threaded into the bushing D at the bottom and formed with a head that retains a pair of downwardly projecting spring clips d arranged 1 to engage a bead d provided on the neck of the cartridge D.

lhe chamber D is maintained fluid-tight by suitable packing material provided the bushing D and is formed at its lower end with a piercing point (1'', and immediately thereabove with a flange d which, in the uppermost position of the rod, banks against the washer d and in the lowermost position thereof, against an internal shoulder formed in the head of the thimble d Overlying the piercing rod B, there is provided a solid boss d, having a concave face to cooperate with the upper end of the rod D and formed at the underside of a cup-shaped member D hinged at its edge in a pair of spaced lugs 41, projecting upwardly from the top of the container near one side (see Fig. 2).

When the nozzle B is in its inoperative position, as shown in Fig. l, the cup-shaped member D is positively held against inadvertent movement in a downward direction to depress the piercing rod D by a stop finger b protruding from the nozzle supporting member B and arranged to engage beneath a lip d on-the cupshaped member D opposite its hinge connection (see Fig. 1). However, when the nozzle is moved into operative position, the cup-shaped member D is forced downwardly by a. cam-shaped extension b formed-at the top of the nozzle supporting member B to depress the rod D and pierce the cartridge D whereupon the fluid in the cartridge is allowed to escape into the chamber D through a longitudinal slot d provided in the reduced lower portion of the piercing rod D. In the normal position of the parts, the cup-shaped member D is held against the stop finger b by a leaf spring dlfsecured at the underside of the hinge portion of saidmember and engaging at its free end upon a bearing surface a between the lugs a".

In order to replace the cartridge whenever desired, it is necessary only to swing the cup-shaped member D to clear the bushing D whereuponclips (1 which hold the cartridge in position. In

order to facilitate its removal, the bushing D is formed in its upper portion with a hexagonal flange readily fitted by a wrench.

The gas, on escaping from the cartridge D flows from the chamber D through a passageway a formed in the wall of the boss A, (see Fig. 3) to a pressure regulator E housed in an enclosed portion A "of the boss A located at the side of the shell D, andlthence from the pressure regulator through another passageway a (see Fig. 4) into the chamber 0* formedin the right hand trunnion mounting (Fig. 3). From the chamber C the gas passes into the container A through a valve C housed in a boss C". formed at the bottom of the' trunnion support C and which opens at its iower end into the container. The pressure in the container A is controlled and held constant throughout the discharge of liquid by the pressure regulator E just mentioned. The pressure regulator includes in part (see Fig. 4) an annular chamber E from the cartridge chamber D is introduced through the passageway a) defined by the inner cylindrical wall of the boss A" and the outer wall (into which the gas of a hollow cylindrical member E formed at the 75 3*, threaded into the member E", suitable packing being provided at the flange and plug joints to maintain the chamber E fluid-tight.

The pressure regulator further includes an inner chamber E defined at the bottom by the plug member E at the sides by the inner wall of the cylindrical member E the inner wall of the bushing E and the inner walls of the boss A above the bushing, and at the top by a flexible circular diaphragm E seated at its periphery upon an annular shoulder e formed in the boss at the top and held in place by a bushing E having an enlarged lower portion, threaded into the container top and pressing. against the diaphragm E at its peripheral edge through an intermediate packing washer. The bushing E is further formed with a reduced upper portion closed by a cap e threaded into said bushing at the top.

The gas passes from the outer chamber E into the inner chamber E through a horizontal passageway e formed in a bridge member E connecting the walls of the cylindrical member E and terminating at its ends in the outer chamber E and through a vertical passageway e likewise formed in the bridge member E and opening at its upper end into the horizontal passageway e and at its lower end into the inner chamber E The flow of gas from one chamber to the other is controlled by a valve E movable under the influence of the flexible diaphragm E to open and close the/vertical passageway c at its lower end. The valvejlil is of a floating character, to insure closing of'thev'ertic'al passageway e, and .restsupon a tit e formed at the top of a plug e threaded in the bottom of .a member formed with two spaced supporting rods E and which depends from a second member E secured to the flexible diaphragm E at its center.

The two spaced supporting rods E are connected together at the bottom by wall portions e (see Fig. 3), terminating sufliciently short of the bridge piece Fl so as not to interfere with the flow of gas to the inner chamber E and they are triangular in cross-section (see Fig. 5) and machined on their inner faces to provide a sliding fit with the side walls of the bridge piece E The rods 1 4 ,the flexible diaphragm, where they proper spaced relation by a plug 6 Themember E supported by the diaphragm E is formed with a large lower portion, seating at its top against the under face of said diaphragm and at the top with'a stud e of reduced cross-section projecting through a hole centrally located in the diaphragm and upon which a nut e isthreaded to secure the two together, an intermediate washer e being provided to make the connection fluid-tight.

A constant force is maintained on the diaphragm E by a compression spring E resting at its lower end on the nut e and seated at its upper end in a recess formed in a bushing E threaded internally into the bushing E which holds the diaphragm in place. Apertures e and 9 eaded at the top into the member E e are provided in the bushing E and the closing cap e respectively, to provide atmospheric pressure above the diaphragm, so that the force exerted upon the diaphragm by the gas in the chamber E is counter-balanced solely by the force exerted on the diaphragm by the spring E which may be regulated as desired by adjusting'the bushing E The arrangement is such that, as the pressure in the chamber E (which, of course, will be substantially the same as that in the container A) builds up above normal, the diaphragm IE will bulge outwardlyagainst the pressure of the spring E causing the valve E to close the verticalpassageway a leading into the inner chamber, partly or entirely, (dependingzupon the force exerted) until the pressure on the diaphragm returns to normal. And conversely, if the pressure in the inner chamber E falls below normal so as to reduce the force exerted 'on the diaphragm, the latter will bulge inwardly under the influence of the spring E to open the valve E and permit the inflow of more gas until the pressure in the con tainer again reaches normal.

As previously stated, the gas upon leaving the pressure regulator passes into the chamber C formedin the trunnion member C and thereafter into the container A through the valve C which, in the normal position of the parts, is closed, but which is opened to permit the passage of gas when the nozzle B is moved to operative position.

The valve C includes in part a body portion 0 arranged to rest against a seat 0 of suitable packing material formed'as part of -a washer c resting upon a shoulder 0 provided in the base of the trunnion member C and held in place by a hollow bushing c threaded into said member above'the washer c The valve furtherincludes upper and lower stem portionsri', c1, .and gnor mally' is heldclosed by a spring c encircling the lower. stem portion 0'' and engaging between the body portion 0 of the valve. and aninternal shoulder c formed at the bottom-of the boss-.0

As the expelling gas gains access to the container A, it immediately starts to force the liquid out of the container through a tube 0 communieating at its lower end with the interior of the container adjacent the bottom and connected at its upper end to a hollow boss C extending through the top of the container and formed at the bottom of the left hand trunnion member C (see Fig. 3). From the hollow boss C the liquid passes through a valve C into the chamber C formed in the left hand trunnion and thence through the passageway b in the hexagonal shaft B to the nozzle B, in the manner hereinbefore described, from whence it is discharged.

The valve C in the liquid passageway is, in all substantial respects, similar to the valve C previously described in connection with the fluid passageway and is operated in a similar manner, that the valve normally is closed when the nozzle is material than otherwise .would be required, thus rendering the device economical to manufacture without in any wise impairing its efllciency.

If a portion 'only of the liquid in the container is used, it'is not necessaryto replenish it at once or supplg g new cartridge, since thedevicemay be stored fo'f 'later use, even though the cartridge is punctured, providedthe nozzle is in its inoperative position, since under the circumstances the pressure regulator E will effectively close oiithe high pressure chamber D from the container A.

In the event the pressure regulator E failed for any reason completely to close the passageway between the high pressurechamber D and the "container A, "it would'be possible for-the fluid to escape from the high pressure chamber, pass through the pressure regulator into the chamber C force open the valveC, and build up an abnormal pressure in the container A, were it notfor the presence of the relief valve mentioned heretofore and which. is provided in the bellshaped cap C forming part of the chamber C.

The relief valve .C" includes a cup shaped body portion 0 9- formed at one end witha flange e normally seated against a packing ring c" which is held in place by an annular ring c threaded into the cap member C (see Fig. 3) The valve is a maintained in its normal or closed position by a to spring c encircling a stud 0" formed centrally on the inner face of the cap member 0 and arranged to press at its opposite ends against the inner face of said member and. the base of the cup-shaped body portion c of the valve. If the pressure regulator E should leak, the escaping fluid will build up a pressure in the chamber Cf "wand, before it attains a value suiflcient to open the valve C guarding the entrance to the container A, it will unseat thevalve member o and allow the fluid to escape to'the atmosphere through a pair of apertures 0" provided for the purpose in the cap member C. 1

As a result of this arrangement, it is possible to construct a container of a light gage metal while still maintaining the factorof safety required in devices of this character.

In Figs. 1, 6, 7 and 8, there is shown an arrangement by which the character of spray discharged from the nozzle B can be varied from its normal or round character to onesubstantially flat in form. The nozzle'B includes generally a body 1 portion b threaded to thedischarge tube B and having a large inlet opening 12 tapering to a small circular outlet opening b and a cupshaped cap member b slidably mounted on the 'body portion and comprising inner and outer elements held together by a screw b projecting, to a "slight degree, into a wide annular recess b" formed in the body portion and which holds the cap member to the latter while permitting longitudinal as well as rotational movement with re-' YT 'spect thereto. The cap member b ha's a flaring outlet opening b through which the liquidis discharged, located in alinement with the outlet opening b nt the body portion, while the inner uid (usually carbon tetra-chi element of the cap member b" is further provided witha mouthpiece b" extending toward the body portion and formed with outwardly flaring walls for a purposesubsequently to be described. The

body portion b" at its base is formed with a large transverse slot b and opposed shoulder portions '1)" to receive apair of T-shaped slidable jaws b adapted to move transversely of the round outlet aperture 12 in the body portion b and formed.

in their inner opposed faces withcorresponding recesses adapted toproduce an elongated slot 17 when the jaws are in theinnermost positions,

I Whenthe jaws b" are in theiroutermost posi tions, the liquid passes through the outlet b" of the nozzle without interference from the jaws,

and the stream is circularin cross-section, but,

when the jaws are moved to their innermost positions, the elongated slot resulting changes-the shape of the stream from a round to a flat form.

The transverse movement of the jaws b is e1 fected by a pair of slots on formed therein and slidably fitted on the flaring walls ofthe mouthpiece b and, as the cap member b ismoved' outwardly from the body portion 12 the slot connection b will actuate the jaws b" to their ber b is moved inwardly toward'the body portion b said jaws b" willbe actuated toward eachother to their innermost position.

The longitudinal movement of the cap member b" with respect to the body portion b"? is effected, by a set-screw l7 tapped intothe body portion. b and engaging at its outer end in a. bayonet outermost position, whereas, when the cap .mem-

slot b formed in the inner element of the cap member b9. The form of the bayonet slot is such. that, as the cap member I)" is rotated in a clockwise direction, itv will have a component of motion inwardly toward the body portion b" to efiect closing of the jaws b .,'whereas, when it is rotated in a counterclockwise direction, it'

will have a component of motion outwardly from the body portion, resulting in the separation of the jaw members b". I

. From the foregoing description, it' is obvious that a substantially fool-proof spraying device is provided by virtue of the safety device which prevents puncturing of the [cartridge when the nozzle is in its inoperative position(where it is held by a spring clip F when the device is not in use), but which is automatically conditioned for-operation to permit the'puncturing. device to be operated when the nozzle is swung to operative position, and wherein all the passageways leading to the working. parts of the device. are maintafned in closed position when the nozzle is in its inoperative position, so as to prevent access to the working parts of the fumes give venting corrosion and maintai condition for immediate use. 7 I n In the accompanying drawings the invention has been shown merely by way of, example and in preferred form, but'obviously many variations and modifications may be made therein which will still be comprised within its spirit. Itis to be understood, therefore, that the invention is not limited to any specific form orembodiment,

except insofar as such limitations are specified in the appended claims.

Havingthus described my invention, what I claim is: I. A spraying device including, in combination,

pivotally mounted on the container, and arranged to extend longitudinally thereof when inoperalrthe liqus predevice in t a closed. container for liquid, a discharge nozzle nection between the interior of the container and the nozzle, a cartridge containing fluid under pressure and mounted independently of the nozzle so as to facilitate its renewal after use without removing the nozzle from the container, means for puncturing the cartridge, a connection between the cartridge and the interior of the container to permit fluid from the cartridge 3 when punctured to build up a pressure in the container and thereby elfect the discharge of fluid therefrom, and means controlled by the nozzle for preventing operation of the puncturing means when the nozzle is in inoperative position and for operating said puncturing means when the nozzle is moved to operative position.

2. A spraying device including, in combination,

a closed container for liquid, a discharge nozzle pivotally mounted thereon and arranged to extend longitudinally of the container when in inoperative position and laterally thereof when in operative position, a connection between the discharge nozzle and the container, a normally closed valve in said connection, a cartridge containing fluid under pressure and mounted independently 'of the nozzle so as to facilitate its re newal after use without removing the nozzle from the container, a connection between the cartridge and the interior of the container through which the fluid from the cartridge when punctured is adapted to pass to build up the pressure in the container to efiect the discharge of liquid therefrom, puncturing means for the cartridge positively held against operation when the nozzle is in inoperative position, and means for opening the valve in the connection between the container and nozzle, and for actuating the puncturing means when the nozzle is moved to operative position. 1 a

3. A spraying device including, in combination,

a closed container for liquid, a discharge nozzle pivotally mounted thereon and arranged to extend longitudinally of the container when in inoperative position and laterally thereof when in operative position, a connection between the discharge nozzle and the container, a cartridge containing fluid under pressure and mounted independently of. the nozzle so as to facilitate its removal after use without removing the nozzle from the container, a connection between the cartridge and container through which the fluid from the cartridge when punctured is adapted to pass to build up the pressure in the container to effect the discharge of liquid therefrom, a normally closed valve in the latter connection, puncturing means for the cartridge, and means for opening said valve and for actuating the puncturing means when the nozzle is movedto perative position.

4. A spraying device including, in combination, a closed container for liquid, a discharge nozzle pivotally mounted thereon'and arranged to extend longitudinally of the container when in inoperative position and laterally thereof when in operative position, a connection between the discharge nozzle and the container, a cartridge containing fluid under pressure and mounted independently of the .nozzle so asto facilitate its removal after use without .removing the nozzle from the container, a connection between the cartridge and container through which the fluid from the cartridge when punctured is adapted to pass tobuild up the pressure in the container to effect the discharge of liquid therefrom, a normally closed valve in the latter connection, puncturing means for the cartridge positively held against operation when the nozzle is in inoperative position, and means for opening said valve and for operating the puncturing means when the nozzle is moved to operative position.

5. A spraying device including, in combination, a closed container for liquid, a discharge nozzle pivotally mounted thereon and arranged to extend longitudinally of the container when in inoperative position and laterally thereof when in operative position, a connection between the discharge nozzle and the container, a normally closed valve in said connection, a cartridge containing fluid under pressure, a connection between the cartridge and the interior of the container through which the fluid from the cartridge when punctured is adapted to pass to build up the pressure in the container to effect the discharge of liquid therefrom, a normally closed valve in said latter connection, puncturing means for the cartridge, and means for opening the aforementioned ..valves and for actuating the puncturing means when the nozzle is moved to operative position.

6. A spraying device including, in combination,

, a closedcontainer for liquid, a discharge nozzle pivotally mounted thereon and arranged to extend longitudinally of the container when in inoperative position and laterally thereof when in operative position, a connection between the discharge nozzle and the container, a normally closed valve in said connection, a. cartridge containing fluid under pressure, a connection between the cartridge and the interior of the container through which the fluid from the cartridge when punctured is adapted to pass to build-up the pressure in the vcontainer to effect the discharge of liquid therefrom, a normally closed valve in said latter connection, puncturing means for the cartridge positively held against operation whenthe nozzle is in inoperative position, and-means for opening the aforementioned valves and for actuating the puncturing means when 'thenozzle is moved to operative position.

'7. A combination in accordancewith claim 2, wherein there is provided pressure regulating means in the connection between the cartridge and container. I

8. A spraying device including, in combination, a closed container for liquid, a discharge nozzle pivotally mounted on trunnion supports positioned on the container and arranged to extend longitudinally of the container when inoperative and laterally thereof when operative, a high pressure chamber within the container, a cartridge containing fluid under pressure housed in said chamber, a liquid connection between the container and the discharge nozzle passing through one trunnion'support, a fluid connection between the high pressure chamber and the container passing through the other trunnion support,

.valves in said connection arranged to be opened in there is provided pressure regulating means in;

cartridge containing fluid under pressure arranged in said chamber, means for establishing a connection between the liquid container and the chamber, and a pressure regulator mounted in the container head and included in said connection.

12. A portable spraying device including, in combination, a container for liquid, a head closing the container, a discharge nozzle, means for connecting the discharge nozzle with the interior of the container, means secured to the container head and providing a chamber within the container but isolated therefrom, a replaceable cartridge containing fluid under pressure arranged in said chamber, means for puncturing the cartridge to permit the escape of fluid therefrom, a connection between the chamber and the container to permit the fluid from the cartridge to build up a pressure in the container and thereby effect the discharge of liquid therefrom, and a pressure regulator mounted in the container head and included in the connection between the container and chamber.

13. A spraying device including, in combination, a closed container for liquid, a discharge nozzle pivotally mounted on trunnion supports positioned on the container and arranged to extend longitudinally of the container when inoperative and laterally thereof when operative, a high pressure chamber within the container, a cartridge containing fluid under pressure housed in said chamber, a liquid connectionbetween the container and the discharge nozzle passing through onetrunnion support, a fluid connection between the high pressure chamber and the con; tainer passing through the other trunnion support, a valve in the liquid connection arranged to be opened as the nozzle is moved to operative position, means'for puncturing the cartridge as the nozzle is moved to operative position to permit the fluid from the cartridge to build up a pressure in the container and thereby effect the discharge of liquid therefrom, and means in the fluid connection for regulating the flow of fluid to the container.

14. A spraying device including, in combination, a closed container for liquid, a discharge nozzle pivotally mounted on trunnion supports positioned on the container and arranged to extend longitudinally of the container when inoperative and laterally thereof when. operative, a high pressure chamberwithin the container, a cartridge containing fluid under pressure housed in said chamber, a liquid connection between the container and the discharge nozzle passing through one trunnion support, a fluid connection between the high pressure chamber and the container passing through the other trunnion support, a valve in the fluid connection arranged to be opened as the nozzle is moved to operative position, means for puncturing the cartridge as the nozzle is moved to operative position to pera high pressure chamber within the container housing a replaceable cartridge containing fluid under pressure, removable means in the container head giving accessto the high pressure chamber for the removal and replacement of the cartridge, a puncturing device mounted in said rem vable means, a pivotally mounted cap adapted to cooperate with the puncturing device when the nozzle is moved to operative position for operating the same, means for preventing the operation of said cap when the nozzle is in inoperative position, and connections between the high pressure chamber and the container and between the container and the discharge nozzle.

16. A "combination according to claim 15, wherein there is-provided pressure regulating means in the connection between the high pressure chamber and the container.

17. A spraying device including in combination, a closed container for liquid, a discharge nozzle pivotally mounted on the container, and arranged to extend longitudinally thereof when inoperative and laterally thereof when operative,

a connection between the interior of the conup a pressure in the container and thereby effect the discharge of the fluid therefrom, and means for operating said puncturing means when the nozzle is moved to operative position.

18. A spraying device including, in combination, a closed container for liquid, a discharge nozzle pivotally mounted thereon and arranged to extend longitudinally of the container when in inoperative positionand laterally thereof when in operative position, a connection between the discharge nozzle and the container, a normally closed valve in said connection, a cartridge containing fluid under pressure and mounted independently of the nozzle so as to facilitate its renewal after use without removing the nozzle from the container, a connection between the cartridge and the interior of the container through which the fluid from the cartridge, when punctured, passes to build up pressure in the container to effect the discharge of liquid therefrom, puncturing means for the cartridge, and means for opening the valve in the connection between the container and the nozzle and for actuating the puncturing means when the nozzle to the container. v

high pressure chamber within the container, a

. cartridge containing fluid under pressure housed tion to permit the fluid from the cartridge to build up a pressure in the container and thereby efiect I a discharge of liquid therefrom, and means in the fluid connection for regulating the flow of fluid 20. A spraying device including, in combination, a closed ,container' ior liquid, a discharge nozzle piVotaIIy mounted on trunnion supports positioned on the containerand arranged to extend longitudinally of the container when inoperative and laterallythereof when operative, a

high pressure chamber within-the container, a

cartridge containing fluid under pressure housed in said chamber, a liquid connection between the container and the discharge nozzle passing through one trunnion support, a fluid connection between the high pressure chamber and the container passing through the other trunnion I support, a normally closed valve in the fluid. connection' arrangedto be opened as the nozzle is moved to operative position, means for puncturing the cartridge as the nozzle is moved to operative position to permit the fluid from the car- .tridge to build up a pressure in the container and thereby effect the discharge of liquid therefrom, and a relief valve in the fluid connection between the valve therein and the high pressure chamber.

21. A spraying device including, in combination, a container for liquid, at head closing the container at the top, a dischargenozzle pivotally mounted on the container head and arranged to extend longitudinally of the container when inoperative and laterally thereof when operative,

a high pressure chamber within the container.

housing a replaceable cartridge containing fluid under pressure, means in the container head giving access to the high pressure chamber and removable independently of the nozzle to facilitate the removal and replacement of the cartridge, a' puncturing device for the cartridge, connections between the high pressure chamber and the container and between the container and, the discharge nozzle, and means for auto matically operating the puncturing device when the nozzle is moved to operative position.

22. A combination according to claim 21, wherein there is provided pressure regulating means in the connection between the high pressure chamber and the container.

--23. A combination according to claim 21,

wherein the puncturing device is located in the removable means which gives access to the high pressure chamber.

' JAMES C. PLAS'I'ARAS.

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