US2585254A - Spraying device - Google Patents

Description

Feb. 12, 1952 w B KOCHNER 2,585,254

SPRAYING DEVICE Filed Feb. 2l, 1949 QUY Patented Feb. 12, 1:952

UNITED STATES PATENT l OFFICE f l I 2,585,254@ s-PRAYING DEVICE'. t William B. Kochner, St. Louis,'M0.', a'ssignorto Knapp-Monarch Company, St.. Louis, Mo.,1a corporation of Delaware i; y Application February 21,1949, serialNo.i7,52c 'l This invention relates to a spraying device particularly adapted for screw-on attachment to a bulb containing both an insecticide or other liquid to be sprayed and a charge of compressed gas for effecting the spraying operation. `5` I4 having threads I6 to coact'with thethread's One object of the invention is to provide a I2, a gasket I8 being-provided for sealingr the relatively simple spraying device in the form of joint between the neck lof thebulb I0 and the a bOdy member tovbescrewed onto or otherwise body member I4 as shown in Figure 2. A sleeve- Sutably CODnected with the neck of a bulb conlike insert serves,` asa valve seat element taining liquid under pressure. 10 through which a stem 22 extends with clearance Anthel Object iS t0 provide puntulirlg and between the stem and the valve seat as shown in control valve mechanism in the body which in- Figure 3, volves comparatively few and Simple parts and The stem has an enlarged part 24 terminating which permits apuncturing operation by pressing in a, gang@ 23 against Which-a valve disk 28 of 0n a knOb after Which the knob @an be released 15 synthetic rubber or the like is positioned. The 101 Closing the @011mm Valve @d Subsequently valve disk 28 is frictionally held in a cup-like eledeDl'eSSed Wlen lslld for Opinng tr@ Valve as ment 30 and against the flange 26 by the cup much as an for e me Peo esire element. The cu element has an annular crim Stm anqther obl-ef* is t0 Provide aqbody mem' at 32 into a grooI/e 34 of the stem 22 for hold? bei' in Whlch l? Sprmg close@ Valve-1s mounted 20 ing the parts assembled. The lower end of the the Valve havmg a Punctufmg P011 to Coat stem has a point indicated at 3a. The vaivesisk with a closed en@ .of the bulb and puncture 1t 28 is normally held against the seat element 20 when the Valve is operated beyond 1it normal by al Spring 38 as in Figure 2 The body I4 has control limit, the valve operation no eing interfered with by the puncturing operation where- 25 a' discharge Opemng 40 of Capillary size termmat' by the mechanism of the combined puncturing and control valve device is reduced to a minimum of parts and results in a spraying device that can be manufactured very inexpensively.

With these and other objects in view, my ing .out in my claim and illustrated in the accomy panying drawings wherein:

Figure 1 is an enlarged vertical sectional view through a spraying device embodying my present invention, it being mounted on a liquid and gas containing bulb and the parts being shown in the puncturing position;

Figure 2 is a similar sectional view through the spraying device showing the initial position of the parts when the device is screwed onto the bulb; and

Fig. 3 is a similar view showing the spraying device in operation.

On the accompanying drawing, I have used the reference numeral IIl to indicate a bulb adapted to contain both a quantity of liquid under pressure such as insecticide and a charge of gas or the like such as compressed CO2 to dispense the liquid. This bulb is the usual construction of Spark1et" bulb except that the neck is preferably threaded as indicated at I2 to simplify con- 1 Claim. (Cl. 293-95) nection of my'spraying device therewith and a liquid'i's contained in the bulb in addition tothe usual gas charge only. My :spraying 'device comprises ya body member ing in a counter-sunk portion 42 to improve the action of the spray 4I issuing from the port 40.

The body I4 is adapted to be screwed onto the bulb I0 as in Figure 2 and the upper end 44 of the bulb is then adapted to be punctured as indicated at 46 by pressing a knob 48 on the upper end of the stem 22 .downwardly from the position of Figure 2 to the position of Figure l. This opens the valve at the elements 20 and 28, but the point 36 in the perforation 46 of the bulb keeps the gas from escaping. The knob 48 may then be released so that the spring 38 quickly closes the valve to minimize the escape of gas and the spraying device is then in the closed position of Figure 2 and ready for operation.

When it is desirable to dispense all or any portion of the liquid from the bulb, the bulb and the spraying device as a unit are inverted as in Figure 3 whereby partial depression of the knob 48 to the position shown will open the valve by reason of the valve disk 28 being spaced from the element 20 as illustrated. Accordingly, the liquid under pressure will flow out of the bulb past the cup 30 and through the element 20, and also past the enlargement 24 of the stem 22 to issue from the discharge port 40 -as indicated -by arrows and by the spray illustrated at 4I. The valve of course can be opened as little as desired or as much as desired Within its open limit and may be closed at any time desired if it is unde- 3 sirable to dispense at one time the entire contents of the bulb.

When the liquid is all used up then the gas will commence to issue from the bulb and it will soon be exhausted whereupon the valve mechanism of the spraying device can be permitted to reclose and the device removed from the bulb by an unscrewingy action. Another lled bulb can be read'- ily substituted in the sprayer with a minimum V'of time and effort.

A spraying device of the character disclosedl is primarily designed for household use in the spraying of small quantities of insecticide, mothieide, deodorant, sterilizing liquid or the like or even in the spraying of perfume or similar liq-y uids in small quantities. It can also be used of course for any other liquids Aunder pressure for which its use is found suitable.

Some changes may be made in the construe.- tion and arrangement of the parts of my device without departing. from the real spirit and purpose of myv invention, and it is my intention to cover by my claim any modified forms` of structure or use of mechanical equivalents which may be. reasonably included within its scope.

I claim as my invention:

In a. spraying deviceof the character disclosed, a. cylindrical body member having. an enlarged end provided with internal screw threads, a punc- 4 turable bulb having external screw threads for cooperation with said internal screw threads for connecting said body member to said bulb, a valve in said body member, a spring between said valve and said bulb to normally close said valve, a push knob, a stem connected therewith for operating said valve, said stem extending slidably through the outer end of said body member, and a piercing element carried by said stem for puncturing said bulb when said valve is moved beyond its openvalve position, said piercing element being exposed when said body member is disconnected from said bulb for puncturing action cn another bulb subsequently screw connected with said spraying device, said body member having a. discharge port beyond the valve mechanism therein and inward of said outer end of said body member.

WILLIAM B. KOCHNER.

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

UNITED sTATEs PATENTS Number Name Date 1,742,605v Lemoine Jan. 7, 1930 1,892,750 Rotheim Jan. 3, 1933 2,167,866 Bennett Aug. 1, 1939

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