US1825092A - Spraying device - Google Patents

Description

p 1931. J. a. ROSEFIELD 1,825,092

sPRAYING DEVICE Filed March 23. 1929 Patented Sept. 29, 1931 1 Application 3 The present invention relat'es Qto; liquid sprayers, particularlythe type 'employing an air pump of the common ty,pe, -with siphoning 9 means attachedthereto, permitting a ready connection of the pump and siphoning means to' ordinary conta ners oi the liquid to be sprayed, thereby doingaway with the usual tank that requires filling from another container of the liquid. By employingmyrde;

" vice the user of this classof goods is able,

therefore,'to" purchase a less expensive and moreefiective spray ng devicei a 'Another purpose of m'y invention-is toprovide a more positive means *of feeding the r liquid to the si hon systemYfor the'prevention of such waste as the present devices on the market entail. I am aware that there are spraying devices now in use which have a pump and siphoning means n combination for adaption to the. usual containers ofsuch length of the siphon tube,

liquids, but those devices provide a straight siphon tube of a set length; consequently, the operator can only use the sprayer when the depth of the container is greater than the and waste occurs when the container is of greater depth than the length of the siphon tube, due to the fact that the liquid is out of reach, so to speak, of the intake end of the tube.

With these and other purposes in view, my invention consists of parts and combinat ons which are hereinafter described, and the novel features thereof pointed out in the claims. I

The drawings consist of the follow ng features: p

Figure 1 is a longitudinal section through the pump and siphoning means, theparts being shown in elevation. v p

Figure 2 is an end view of the sprayer with the usual container attached.

There has ever been a demand foran efi'ective sprayer which could be sold separately from a supply tank and one which would be readily adaptable to containers common to o the trade,.provided with an opening of standard dimensions, threaded in the usual way,

to avoid the necessity of filling a supply tank,-

which has never been the most pleasant task.

-when;;the-'sprayer is inverted and put into breadth' of the appended claims v a standard size threaded-cap and a siphoning means'permanentlyjoined in proper fixed re lation', t is believed some of the diflicultie's of'sprayers now in use havebeen overcome. additional feature of my invention, and an'-"obv1ously' advantageous one, "is that by providing a U-shaped tube withits intake end POSltlOIlGd in near-relation to the'inner top surface ofthe cap, an operator is able'to turnthe-eontainer upside down, and thereby be'ass'ured of afree delivery of fluid with v each stroke of the pump. F'I havefalsoprovided means whereby the small amount of fluid thatjwouldnatu'rallybe siphoned, will be caught-ma drip cup, and siphoned oif by the firstone or two strokes of the pump.

One form of my invention is illustratedrin the accompanying drawings, in whichl' indica'te s'a s'ta ndard' hand operated air pump, equ pped with the usual piston 2, secured-to a'piston' rodBwhich extends through the cap of the pump and is connected ito the customary operatingjhandle' 4; The'exhaust end of the pump isclosed in by the w'all'5, which is I provided with a port 6, di-rectlyat the outlet end of thefsupply siphon tube 7, and the outlet end of the overflow siphon tube -8. The

siphon tube '1 is substantially-U-shaped and of'the top of the threaded container closure =cap' 9, ln the present disclosure of'my invent onI have shown the sprayer attached to a suitable container 10." Theoverflow siphon tube '8,'-it will be noted, communicates with the drip cuplhwhich is secured tO'thG exhaust endz-of' the air pump 1, and its intake end is angled: to permit siphoning i off of the overflow which mayj accumulate in the drip cup operation; This tube 8, may also have a substantiallyu horizontal intake end, disposed sli h ly above the bottom of; the drip, cup, andmay be ofotherconstructions' withthe The operation of my sprayer i carried out "substantially as follows: The sprayer is fattached to 'a' container' of the liquid desired to be sprayed by means ofthe threaded clos- Since my invention is providedwith a pumpf ur'ef cap t), andth e whole then inverted. The- 10 liquid automatically fills the top (now the bottom) of the closure cap 9, and with each stroke of the pump, is drawn into the intake end of the supply siphon tube 7, from which it is blown by the exhaust air through the port 6, assuring equality of supply until the contents of the container are substantiallytotally exhausted. Further, the U-shapedtube tends to prevent accidental escape of V the liquid from the container through the dis-- charge opening of the tube while lthede'vice is being handled. With the container partly filled with liquid, sudden movements of the container causes'the liquid to surge therein. This surging of the liquid tends to squirt the same through the-discharge opening. With a short, straight discharge tube, the tendency to squirt would be considerable; on the other hand, with the comparatively long U-shaped discharge tube, the tendency to squirt through surging would be lessened, as this tubewould trap the liquid. I, r p f When the sprayer and the filled canare inverted,,there will be a natural siphoning or flow of the liquid through the tube 7, without a stroke of the pump; which small quantity would ordinarily drip onto the ground or floor as the case might be, causing objectione able stains; I I have overcome this by; providing the drip cup 11 and the short siphon tube 8, by which' the overflow is automatically siphoned off. with the first one or two strokes ofthe pump. I

Modifications of my invention may be used spraying device comprising an air pump provided with a suitable discharge, a

cap secured to said pump for attachment to a suitable container, a drip cup secured to said pump opposite said cap,- and means for simultaneously siphoning fluid to the pump discharge from both the drip cup and a suitable container attached to said cap. 1 5.- A. spraying device comprising an air pump provided with a suitable discharge, a container secured to said pump,a drip cup secured to said pump opposite said container,

and means for simultaneously siphoning the fluid to the pump discharge from both the.

drip cup and the said container. 1 v

J OHN B. ROSEFIELD.

without departingfrom the principle of my invention as described in the appended claims, without the-loss of any: of thematerial benefits to be derived from its use.

Z What I claim as new and desire to secureby LettersPatent is as follows:

' 1 A spraying device comprising an air pump provided witha suitable discharge, a cap secured to said pump for attachment/to a suitable container, a substantially U -shaped siphon tube imperforatebetween its ends and having its discharge end extending through said cap. and adjacent saidpump discharge and its intake end in close relation to the in- 1 side or said cap,- adrip cup securedto said pump opposite said cap and also opposite the discharge end of the U-shaped siphon, and a second siphon tube with its intake end in communication with said drip cup and exhaust V I i I I end adjacent said pump discharge;

2. A spraying device comprisingan' air pump provided with a suitable discharge, a cap secured to said pump forattachmeht: to a dripcup secured to said pump opposite said capand also opposite the discharge, end of suitable container, a substantially U-shaped the U-shaped siphon, and asecond siphon; j

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