US2194340A

US2194340A - Spraying device

Info

Publication number: US2194340A
Application number: US251923A
Authority: US
Inventors: Vogel William Martin
Original assignee: Individual
Current assignee: Individual
Priority date: 1938-07-19
Filing date: 1939-01-20
Publication date: 1940-03-19
Anticipated expiration: 1957-03-19

Description

Marchl 19, 1940. w. M. VCGEL SPRAYING DEVICE original Filed July 19. 195e ATTORNEY Patented Manie,

194ev y `

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yUNITED sTA'ir.s;'enf'ri-.Nr'orticav N j SPRAYING nevica william `win-ua vogel, yinconscia, N. J. original application lJuly 19, "1938. serial No. v 220,040. Divided and this application January 20.1939, serial No. 251,923 j l 1.0mm. (c1. 23o-,417m

This invention relates to an improvement in constituting anoperating handle by means of spraying devices of the character used for'the which the piston I onv the opposite end of rod distribution of liquid insecticide or other liquids, S maybe reciprocated in the cylinder or tube 4. and particularly to a type of sprayercombined The knob I is soshaped as to rit within the "5. with or built in aninsecticide can or similar revconical "receptacle as shown in Fig. 1, when ceptacle, an example of such structure being thel pistonhas reached the yend of its spraying disclosed in my co-pending application, Ser. No. stroke and is held'against reciprocation. When 182,156, filed December 28, 1937." the knob I0 is so' seated in receptacle 5 it is lo- This application is a division of my co-pending cated above the lower end I2 of the can so that application, Ser. No. 220,040, tiled/July l19, 1938. the can may be stood vupright in the conven- 10 y The present invention has for its object the tional way on its bottom without interference provision of a combined can and sprayer where?` by anyA projecting portions of knob I0. The upin means are provided for restraining the piston per end of thetube o r cyl'nder 4 is widened or of the sprayer against movement when the sprayenlarged toH form a chamber I3, the `formationl f5A ver is idle or when the can is handled,,displayedv of said 'chamber' producing an vannular seat I .1;5

or shipped. y on which the circumferential laterally extending Another object of the invention is to provide iiange Irof acup-shaped 'member I6 rests. Said a means of the character describedl wherein member .I6 is pressed or otherwise tightly tted leakage of the can contents into and out of'the in the upper end` oi cylinder 4 and it is formed 2"()y piston `chamber or cylinder of the sprayer-.is with ardownwar'dly extending central cup-shaped 20` prevented by means ofthe improved pistonportion' I1 of less diameter than the inside of v locking device. n n the piston, provided with threads I8. i Inthe accompanying drawing wherein an em- Secured or otherwise :formed on the piston bodiment of the invention is shown, Fig. `1 is af II is a cup I9 of less diameter than the piston` vertical sectional view through. a. combined can and which is internally threaded at 20, so that 25 and sprayer made in accordance with the init maybe received on the threads I8 of the vention; Fig. 2 is a plan view of y a top portion cup-shaped portion I1."That isto say, when the of the can-showing the spray nozzle; and Fig. 3 piston II is forced toward member I1 as far is a sectional view of the upper portion of the I as it will go by direct manual pressure imposed can with parts of the sprayer also in section, upon the knobI, the knob I0 is then manually 3o showing the piston in position, or ready for l-op-f rotated causing threads 20 in cupf I9 to engage f eration. i with 4the threads I9 on cup-shaped member I1. y

The bodyof the can or similar receptacle is lThe engagement of cup I9 with member I1 serves` shown at I and the same maybe of any suitto hold the piston against longitudinal move? able form or size convenient to be' held in'one ment in cylinder 4 so thatv the possibilityof 35 hand while the piston of the built-in sprayer is ythe sprayer operating or the piston lshiftingin reciprocated `with the other hand. p the cylinder during handling of the canis pre- Seamed to the upper end of the can body I vented.' The cup I9 also, whenin engagement in the conventional manner is the top 2 and withporticn I1, extends over and seals an open` 40 similarly secured to the lower end Lof the .body ving 2B through which liquid might Aotherwise 40 i is the bottom 3. Extending throughA the body makeits way when the devioe'isin its inoperative of the can from top to bottom thereof is a tube position. V f i or cylinder 4 constitutinga piston-chamber. ,Se- Chamber I3 is packed with a soft absorbent cured to the lower end of the tube or cylinder material .2l which is adapted to become satd 4 and closing the same is a conical plug receplurated by the liquid contents oi Athe can,rv the 45 tacle or socket 5 which `has a' laterallyl extended upper'end of cylinder I3 beingf'closed'by plate ange' secured to the bottom 3 to close the bot- 22 which is :formed with an upwardly projecting tom around the lower end of the cylinder 4. The central lportion 23. formed with a central air- Y inner end 4of the conical plug receptacle 5 is opening v24. -Opening 24 communicates with the provided with an aperture or hole 1f through interior of the cylinder 4 `by means of an air 50y which piston rod 8 extends. Pressed into'vthe tubev25 extending vertically downward through* receptacle 5 isa gasketor washer 9 whichprechamber 13a-nd having its lower end Acommunivents leakage of any fluid which might make eating with opening` 26 formed in the lower end its way into the cylinderjlwAt onevend, the pisoi portion I1 and communicating with cylinder.

5s ton rod 8 is provided with a conicalknob` IBv "4. It will be obvious that as piston II is forced 55y toward air opening 26, it will direct a blast of air therethrough, through the tube k25 and out through the airopening 2'4. Fitted over the top of the plate 22 is a somewhat similarly shaped plate21, the two plates being spaced apart to form an annular chamber between them in which is located an annularsection of absorbent material 28. Plate 22 isformed with oneor more openingsl 29 and the yupper plate 21 is formed lwith one or more openings 30.

Plate 27 is formed with a head 3l which its over and encloses the portion 23 of plate 22 but is spaced therefrom Y which does not 'communicate with the chamber in which absorbent material 22 is located. fThe head 3| constitutes a spray nozzle and is formed with a central spray opening 33, slightly larger than that shown at 34 and preferably in alignment therewith. Projecting portion 23 of plate 22 is formed with oneor more holes 35 which communicate with chamber-Vl 32 andconnect chamber 32 with chamber I3 in which the absorbent material 2I is located.

Plate 2? is` attached to the top 2 of the can' at the points 36' between the 3l thereon, these spaced ribs serving to provide passages below them through which the liquid contents of the cany may reach the openings 30 and pass therethrough to saturate" the absorbent material. 2 i, 'and also pass through the openings 29 to saturate.- the absorbent material ZI. i

In operation, the can is held in the hand and tilted downward or held with the cylinder 4 horizontally dlsposed to permit the liquid contentsy of the can toV flow by gravity toward the spray.- ing end of thedeviceandenter through

openings

30 and 29. to saturate the absorbent material 28 and 2l,l the saturation of this material being aided also by the suction exerted by the piston Il as it is drawn., tion I7. l'1"0 operate the pistonfirst requires roto provide a chamber 32 it out through away from the cup-shaped por y tative movement of I9 from those shown at I8 so that the piston isi This action creates suctlon tendlng to draw the liquid now surrounding `chamber'` I3 in through ythe passages formed by. ribs 3l and through

openingsl

30 and 29 to satu- This creates a suction `tending to draw the liquid through the. openings 25 from absorbent material spray opening 33. Through the arrangement disclosed, a very effective sprayaction is secured and atthe samer time spurting or spilling of the contents of the can `is' avoided. When the ycan is not being used. for spraying, form is fitted 33. i

on the head 32. over spray opening What I claim is: x In a spraying device, a cylinder, a piston mounted for reciprocating movement therein, a rod upon which the piston is` mounted', Aan .internally threaded cup member securedion I the knob I0 to disengage'threads in Fig. 3 and then it is drawn 5 rate the absorbent material 28 andZI. vWhen the piston is forced toward air blast opening 26,

vit sends a blast of air therethrough and through tube 35 and air-blast opening 23.

2| and eject'.Vv

a. closure cap MI of conventional 20