US2557247A - Double-action sprayer - Google Patents

Description

June 19, 1951 F, ERL ,y 2,557,247

DOUBLE-ACTION SPRAYER Filed March 11, 1948` 5 sheets-sheet 1 'El A i:

211 an (28 I4 P134 25 IN V EN TOR.

BY FRANK ZIHERL A TTOHNEY June 19, 1951 F, ZIHERL 2,557,247

DOUBLE-ACTION SPRAYER Filed March 11, 1948 3 sheets-sheet 2 -4| INVENTOR.

IWF-RANK ZIHERL June 19, 1951 F, ZIHERL 2,557,247

DOUBLE -ACTI ON SPRAYER Filed March 11, 194e Y s sheets-sheet s FI ce. i8

IN V EN TOR.

FRANK ZvHERL A T T OHNEY Patented June 19, 1951 UNITEDsTATEs rATENT OFFICE 9 Claims.

This invention relates, as indicated, to sprayers, but has reference more particularly to sprayers of the double action type.

A primary object of the invention is to provide a sprayer of the character described, by means of which a novel form or type of spraying action is obtained.

Another object of the invention is to provide a sprayer of the character described, embodying a reciprocable tubular member, movement of which in either direction causes a spraying action.

A further object of the invention is to provide a sprayer of the character described, having embodied therein an annular fluid chamber for storing fluid to be sprayed.

A further object of the invention is-to provide a sprayer of the character described having an Voperating handle which constitutes an air compression chamber which is effective for spraying.

A further object of the invention is to provide a sprayer of the character described, which consists of a minimum number of parts which can be readily assembled and replaced, if necessary, and can be easily disassembled for cleaning Vpurposes.

A still further object of the invention is to pro- Vide a sprayer most of the parts of which are so designed as to permit of manufacture in comm mercially desirable quantities on standard screw machines, and at fairly low cost.

Other objects and advantages of the invention will be apparent during the course of the following description.

In the accompanying drawings, forming a part of this specification, and in which like numerals are employed to designate like parts throughout the same,

Fig. 1 is a View, partially in side elevation and partially in section, of a sprayer embodying the invention;

Fig. 2 is a side elevational view of an, extension or auxiliary attachment for the sprayer of Fig. l;

Fig. 3 is a fragmentary cross-sectional view, on an enlarged scale, taken on theline 3 3 of Fig. l;

Fig. 4 is a transverse cross-sectional view, taken on theline 6 4 of Fig. 3;

Fig. 5 is a fragmentary cross-sectional view, on an enlarged scale, taken on the line 5-5 of Fig. l;

Fig. 6 is a fragmentary cross-sectional view, on an enlarged scale, taken on the line 6-9 of Fig. 1;

Fig. '7 is a transverse cross-sectional View, taken on the line 7-1 of Fig. 6;

Fig. 8 is a transverse cross-sectional view, on an enlarged scale, taken on theline 8 8 of Fig. 1;

Fig. 9 is a fragmentary cross-sectional view, on an enlarged scale, taken on theline 9 9 of Fig. 1';

Fig. 10 is a fragmentary cross-sectional view, on an enlarged scale, taken on the line I-iil of Fig. 1;

Fig. 11 is a View taken in the direction indicated by the line II-II of Fig. 10;

Fig. 12 is a fragmentary cross-sectional view, on an enlarged scale, taken on the line iE--H of Fig. 2;

Fig. 13 is a fragmentary cross-sectional View, on an enlarged scale, taken on the line l3-l3 of Fig. 2;

Fig. 14 is a View similar to Fig. 1, but showing a modified form of sprayer;

Fig. 15 is a view similar to Fig. 2, but showing an extension attachment adapted for use with the sprayer shown in Fig. 14;

Fig. 16 is a fragmentary cross-sectional View,V

on an enlarged scale, taken on the line l-ii of Fig. 14;

Fig. 17 is a fragmentary cross-sectional view, on an enlarged scale, taken on the line Il-i 'i of Fig. 14;

Fig. 18 is a fragmentary cross-sectional view, on an enlarged scale, taken on the line lh-i3 of Fig. 15;

Fig. 19 is a View, partly in elevation, and partly in section, and on an enlarged scale, of a portion of Fig. 14, and

Fig. 20 is a view similar to Fig. 19, but showing another modication of the invention.

Referring more particularly to Figs. l and 3 to 11, inclusive, of the drawings, the sprayer will be seen to comprise an aluminum tube l having an angularly disposedportion 2 at the rear theren of, which terminates in an extension of reduced diameter.

Disposed within the tube i for reciprocating movement in the latter is a brass tube d of smaller diameter than the tube i, the tube fi being concentric with the tube I. The tube d is maintained in fluid tight relationship with the forward end of the tube l by means of a packing sleeve Ei of a soft material such as neoprene and laminated duck which is interposed and fills the space between the tube I andtube 4. Thesleeve 5 is mainn tained against axial movement relatively to the tube l by means of a bushing E and a packing nut l. The bushing is disposed within the for ward end of the tube l and has aflange 3 which bears against ashoulder 9 formed by counterboring the forward end of the tube I. The packn ing nut 'E' is threadedly secured to the tube i. Y

Secured in threaded engagement with the lrear end of thetube 4 is a hollow valve or check body l0, preferably formed of brass and having a uid passageway I I, which is normally closed by means of a ball I2. The body I is provided with a conical ball seat i3 for the ball I2. The body It is also provided with a radial :flange I4 against which a cup leather i5 is secured, as by means of anut I 6 which is threadedly secured to the rear portion of the body Iii. This cup leather is preierably impregnated to withstand water emulsions and oil insecticides, and forms a substantially fluid-tight seal between the body Iii and the inner wall of the tube i. A perforated metal screen Ia is secured between the body I9 and rear end of thetube 4 for the purpose of filtering out any solid particles or foreign matter which might otherwise pass into the tube lmmediately ahead of the valve body I9, the wall of thetube 4 is provided with a pair of diametrically opposed uid ports or openings i? and I8, which establish communication between the inside of thetube 4 and the annular chamber I between the outer surface of thetube 4 and the inner surface of the tube I.

Thetube 4 is counterbored at its forward end to provide a shoulder 2E, and is threaded for the connection thereto of adiffuser 2 I. A iiuid-tight seal between the diffuser 2l and the tube l is had through the use of arubber gasket 22, which is interposed between the rear end of the diffuser and abrass washer 23, which bears against the shoulder of the tube Il.

Thediffuser 2| is threaded as at 24 for the attachment thereto of a brass nozzle having a spray opening 2t. A fluid-tight seal between thenozzle 25 and the diffuser is effected by means of an 0ring 21, which is disposed in anannular recess 28 in the diuser and bears against the innercylindrical wall 29 of the nozzle. Thewall 29 terminates at the base of a conical forward wall 3i), the apex of which lies at the bottom of the nozzle or spray opening 26.

Thediiuser 2| has a fluid passageway 3i extending axially therethrough which communicates at its forward end with a pair of radiallyextending openings orports 32 and 33, which are diametrically opposite each other. fuser has ahead 34 at its forward end which is cylindrical for a portion of its length and has aconical end 35 which bears against the conical wall of the nozzle, the angle of the conical end being the same as that of the conical wall 3Q.

Thehead 34 has a series ofcircumferentiallyspaced grooves 36 cut therein, which extend tangentially with respect to the head, and which, as shown in Fig. 3, have inclined side walls. These grooves, moreover, extend generally in the direction of the incline of the conical wall 3F, so that iluid'directed through the grooves will be forced toward the nozzle opening 25.

Rigidly secured to thetube 4 at a point adjacent the forward end of the tube is ahandle 31, preferably formed of aluminum. A pair of cross-handles 33 and SS, also formed of aluminum, are threadedly secured to the handle 3l, and extend radially in opposite directions from the forward end of the handle 3l.

Theextension 3 of the tube I has threadedly secured thereto an aluminum valve or check body 4B having an externally knurled fiange 4I which bears against the lower end of theextension 3, the body 4G having afluid passageway 42 therethrough which is normally closed by means of aball 43. The valve body 4G has a conical seat 44, and theball 43 normally rests on this seat, due to gravity or its own weight. Theball 43 is adapted to be lifted from its seat during use of The dfthe sprayer, but is prevented from leaving the valve body by means of retaining ears orlugs 45, formed by slitting the upper end of the body at circumferentially-spaced points and bending inwardly the portions of the valve body formed by such slitting.

Thevalve body 45 is provided with anextension 46 of reduced diameter, provided with annular corrugations 4l, for the attachment thereto of ahose 48, preferably made of neoprene, and which is adapted to extend into a bucket or other container containing the fluid which is to be sprayed.

For the purpose of maintaining thehose 48 in a bucket, aweight 49 is provided for the lower end of the hose. This weight has an extension 5l) of reduced diameter, which extends into the lower end of the hose and is provided with annular corrugations 5l, which frictionally grip the inner wall of the hose. Awire clip 52 is used to clamp the hose to the extension 5t. Aperforated metal screen 53 is secured within theweight 49 and is used to prevent foreign matter or solid particles from entering thehose 48. In order to admit uid into theweight 49 when the weight rests on the bottom of a bucket, a pair of diametrically-opposite openings orports 54 are provided in the wall of the weight.

Agrip 55, preferably formed of neoprene tubing, is cemented or otherwise secured to theportions 2 and 3 of the tube I.

A sheet metal clip C (Figs. l and 8), may be used for securing to the upper edge of a bucket containing the uid to be sprayed ahose 48. This clip has anges C and C? for supporting thehose 48 in an upright position.

In using the sprayer, the operator will grasp thehandles 37, 38 and 39 with one hand, and will grasp thegrip 55 with the other hand in approximately the manner in which a pistol is gripped, and will reciprocate thetube 4 by means of thehandles 3l, 38 and 39, thereby producing a spray from thenozzle 25. The spraying action is accomplished in the following manner:

As thetube 4 is moved to the right, as viewed in Fig, 1, a suction is created in the tube I behind the ball I2, causing theball 43 to be lifted from its seat, permitting a small quantity of fluid from the bucket to be drawn up into this space or portion of the tube. During this movement, the ball l2 remains seated due to compression of the air in the annular chamber I9 between the tubes I and 4, which pressure is suiiicient to retain the ball I2 in closed position. Thetube 4 is then moved to the left or to its original position, as shown in Fig. l, causing the valve body II] to exert pressure on the fluid behind the valve body, thereby causing theball 43 to be reseated, and the ball I2 to be unseated. At the same time, the fluid in said space is forced through the valve body III andtube 4, and through thenozzle 25. An excess of such uid will now through the ports or openings II and I8, and lill the annular chamber I9 between the tubes I and 4.

Then, as thetube 4 is again moved to the right, the ball i2 will be seated and pressure on the uid within the chamber I9 will cause such fluid to flow through the ports I'i and it into thetube 4 and out through 'thenozzle 25. At the same time,` theball 43 will be unseated and a fresh supply of uid will enter the space behind the body iii.

In this way, a spraying action is obtained on both strokes of the tube d, so that a double action is, in effect, secured.

With theconical end 35 Of the diffuser bearing tightly against thewall 30 of thenozzle 25, the uid is forced only through thegrooves 36 and through thenozzle opening 25. The spray thus produced is of conical shape and is diused in the form of a mist or ne spray. The tangential arrangement of thegrooves 3 imparts a whirling or twirling movement or action to the spray, which is highly effective for such diffusion purposes. The shape of the spray cone can be varied to some extent by rotating thenozzle 25 so as to adjust or change the pressure of thesurface 35 on thewall 30 of the nozzle.

When the surface 3i! of the nozzle is moved out of contact with the surface 33 of the diffuser, the fluid will flow over the entire cylindrical portion of thehead 34 of the diffuser, and emerge in the form of a long thin stream or spray, which is not of conical form. The passage of some of the fluid through the grooves 3E will nevertheless impart to such stream some of the twirling movement already referred to.

The length of the spray or stream can be accurately controlled by the intensity or speed of the reciprocating action.

For certain applications or uses, particularly where it is desired to reach places to which access is otherwise difficult, an extension attachment, as show n in Figs. 2, 12 and 13, is provided.

' This attachment comprises along tube 55 of slightly smaller diameter than thetube 4, and having an angularly disposedportion 51. One end of this tube has an extension 5S of reduced diameter to which anut 59 is swaged or otherwise secured, this nut having a knurled head el) and threads Eil adapted for threaded engagement with the threads on the forward end ofthetube 4. One end of the portion 5'! of theattachment 56 is threaded for the attachment thereto of acoupling 62 havingthreads 53 adapted for engage- Y ment with the threads at the rear portion of thediffuser 2|.

When it is desired to use the aforesaid extention attachment, the diifuser 2i is unscrewed from thetube 4, and thenut 59 screwed to the tube fl, after which the diffuser, with its attached nozzle, is secured to thethreads 63 of thecoupling 62. Figs. 14, 16, 17 and 19 show a modification of the sprayer, which, in many respects is of a construction similar to that of the sprayer which has been described, with the following exceptions:

The handle 3l is provided with a pair ofcrosshandles 38 and 39', which are threadedly secured to the handle 3l and extend radially in opposite directions from the forward end of the latter. Thehandle 39 is made hollow for a purpose to be presently described, being provided with a closure or cap lo, which is threadedly secured thereto.

rIhe forward end of the tube is externally threaded as at 'H for the attachment thereto of a nozzle body i2, a rubber gasket 'E3 being interposed between the end of thetube 4 and the shoulder 'M formed by counter-boring the fluid passageway 'i5 of the nozzle body. The passageway l5 has a conical seat 'i6 for a ball Tl. The forward end of the nozzle body 'l2 is threaded as at 78 for the attachment thereto of anozzle 19 having a spray opening Sii at its forward end. The ball 'H is normally urged against the seat 1B by a compression coil spring 8l, which is disposed within the nozzle le. One end of this spring bears against the ball Ti, while the other end thereof bears against anozzle insert 82.

insert 82 bears against theconical surface 83 of the nozzle, and has spiral grooves 8d and 8d in its outer surface. The construction and operation of thisinsert 32 is similar to that of theinsert 25 described in my copending application, Serial No. 14,335. A fluid impinging on the nozzle insert passes through these spiral grooves, imparting to the fluid a whirling action, which causes it to emerge from the opening 8) in. the form of a conical spray, covering a relatively large area.

The ball 'VF becomes unseated during the spraying action, and its main function is to prevent a siphoning action in cases Where the nozzle end of the sprayer happens to be at a lower level than the level of the fluid in the bucket or container lfrom which the spray fluid is derived.

This 'type of sprayer is designed for use with an extra nozzle (not shown) having a liner spray opening than that shown. This extra nozzle may be stored in the hollow handle 3Q' when not in use. v This type of sprayer is also designed for attachment to a bottle or jar containing the fluid to be sprayed. For this purpose, a union or `coupling 85 is secured to one end of the hose 48', and is used for the connection to the hose 4t `of a second hose d8. A bottle orjar cap 86 is clamped between thehoses 48 and 48, as shown in Fig. 17.

For certain applications or uses, particularly where it is desired to reach places to which access is otherwise difficult, an extension attachment, as shown in Figs. l5 and 18, is provided.

This attachment comprises a long tube 81 of substantially the same diameter as the tube 4', and having an angularly disposed portion B8. One end of this tube has an extension 89 of reduced diameter to which anut 9o is swaged or Y otherwise secured, this nut having aknurled head 9|, andthreads 92 adapted for the attachment thereto of acoupling 93,

The coupling @3 has threads SM adapted for engagement with the threads on the forward end of the tube d'. One end of theportion 88 of the attachment 8l is threaded for the `attachment thereto of either the nozzle unit "lL-,79, or the extra nozzle unit which is stored in the handle 39'.

When it is desired to use the aforesaid extension attachment, the nozzle unit l2- 79 is unscrewed from the tube Li', and thenut 93 screwed to the tube d', after which the nozzle unit 12-19 or the other (stored) nozzle unit is secured to the threads at the end of theportion 88 of the attachment 3l.

Referring to Fig. 20, the sprayer, in this case, is similar to that shown in Fig. 14, and comprises a tube having anaperture 95 in the wall thereof. Secured to thetube 6", is a handle 3'1", which is similar to the handle 3l. Secured to the handle 3l, at a point adjacent theaperture 95, is ahollow handle 38, provided with a closure or cap S6, having an aperture Sl therein, which is in axial alignment with the aperture S5. Mounted for sliding movement in the hollow chamber orcompartment 98 of the handle 3S, is aguide nut 99, to which a cup leather lili) is clamped, as by means of ascrew lill, which is threadedly secured to thenut 59. A compression coil spring EQ2 is interposedV betweenthe screw itil and the cap 9E. The handle 33" also has a passageway it, which is in axial alignment with the aperture S5 and establishes communication between the latter and thecompartment 98 The of the handle.

The hollow chamber orcompartment 98 forms a storage reservoir or container in which air is compressed'during the reciprocating action of the tube d, this compression of the air being resisted or built up by the pressure of the spring i132 on the piston formed by the cup leather lii. The air thus stored or compressed within this chamber is effective to continue the spraying action for a brief interval at the end of each stroke of thetube 4, so that the periods of non-spraying between strokes are reduced. In this manner, a substantially continuous spraying action is obtained.

Sprayers, as thus described, are of general utility, being adapted for numerous uses, particularly outdoor uses. They consist of a minimum number of parts which can be readily assembled and replaced, if necessary, and can be easily disassembled for cleaning purposes. Each part is so designed as to permit of manufacture in commercially desirable quantities on standard screw inachines, and at fairly low cost. Moreover, the sprayers are adapted for attachment to jars, botties or other contains oi conventional form.

It is to be understood that the forms of my invention, herewith shown and described, are to be taken as preferred examples of the same, and that various changes in the shape, size and arrangement of parts may be resorted to, without departing from the spirit of my invention or the scope of the subjoined claims.

Eaving thus described nfention, l claim: l. In a sprayer or" the character described, a tucuiar member, a second tubular member telescopically movable in said first tubular member, means operable upon relative niovenent of said second member to said rst inemb r for ejecting iiuid through said second member, an operating ile removably secned to and haring its airis eoitendinfT radially from said eeond tubular member, said handle being hollow and in ccmniunication with the interior of said second tubular member, and constituting an air chamber for storing air which is eiective to discharge iiuid from econd tubular member.

2. A sprayer, as dened in claim l, which said hollow handle has piston means disposed therein for resisting the storing of said air in the handle, said piston iff-.cans being under pressure of a compression coil spring.

3. In a sprayer of the Character described, a tubular member havinga straight portion and a portion formed integrally with the straight porn tion and extending at an obtuse angle to the latter, said last-named portion constituting a hand grip for holding the sprayer during the sprayig operation, a second tubular member telescopically movabie in the straight portion of said irst tubular member and projecting from the latter, normally closed valve means at the lower end ci said hand grip portion of said first tubular member, normally closed valve means at the inner end of said second tubular member, said nist-named valve means adapted to be opened upon movement of the second tubular member away from said first tubular member, said second-named valve means adapted to be opened upon movement or" the second tubular member toward said first tubular member, said second tubular member being provided with a tubular handgrip for reciprocating the same, and a pair of cross-handles threadedly and removably secured to said tubular hand grip and extending radially in opposite directions therefrom.

4. A sprayer, as deiined inclaim 3, in which a flexible tube is attached to the valve means at the lower end of the hand grip portion oi the first-named tubular member, and a weight is appende-d to said flexible tube, said weight adapted to sustain the Flexible tube in a vertical position, said weight being hollow and having inlet openings in the wall thereof adjacent its lower end.

5. In a sprayer of the character described, a tubular member, a second tubular member telesccpically movable in said iirst tubular member, valve means operable upon relative movement of said second member to said iirs'., member for permitting huid to iiow through said second member, a hollow handle in communication with the interior of said second tubular member, and constituting an air chamber ior storing air which is eiiective to discharge duid from said second tubular member, and means in said hollow handie for resisting the storing of said air in the handle.

t. A sprayer, as dened inclaim 5, in which said last-named means includes a piston.

7. A sprayer, as dened inclaim 6, in which spring means are provided for resisting movement ci said piston in said handle.

8. In a sprayer of the character described, a tubular member, a second tubular member movable telescopically in said first tubular member, valve means operable upon reiative movement of said second member relatively to said iirst inember for permitting fluid to ilow through said second member, and a handle having its axis extending radially to said second tubular member, said handle being hollow and in communication with the interior of said second tubular member, and constituting an air chamber for storing air which is eiecti to discharge fluid from said second tubular member, said hollow handle having piston means for resisting the storing o air in the handle, and said piston means being under pressure of a compression coil spring.

9. A sprayer, as defined inclaim 8, in which said handle has a removable cap, and said spring is interposed between said cap and said piston means.

FRANK ZIHERL.

REFERENCES CITED The following references are of record in the le of this patent:

UNITED STATES PATENTS Number Name Date 751,238 Yost Feb. Z, 1904 2,348,190 Bullock May 9, 1944 FOREIGN PATENTS Number Country Date 15,770 Australia Jan. 2, i935 165,736 Switzerland Feb. 16, 1934 280,003 Great Britain Nov. 10, 192'? 751,429 France June i9, 1933

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