US2589020A

US2589020A - Spraying device

Info

Publication number: US2589020A
Application number: US44519A
Authority: US
Inventors: Jr Harold D North
Original assignee: Engine Parts Manuf Co
Current assignee: Engine Parts Manuf Co
Priority date: 1948-08-16
Filing date: 1948-08-16
Publication date: 1952-03-11
Anticipated expiration: 1969-03-11

Description

March 11, 11952 [1 NORTH, JR 2,5@9,@2@

SPRAYING DEVICE Filed Aug. 16, 1948 2 SHEETSSHEET 1 IN VEN TOR. ff/1 HOLD D. 1W9)? 771, Jr,

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March H, 1952 H. D. NORTH, JR 2,589,@2@

SPRAYING DEVICE Filed Aug. 16, 1948 2 SHEETSSHEET 2 IN V EN TOR. Mic/.0 .17. 11 022 77% (/78,

Patented Mar. 11, 1952 SPRAYING DEVICE Harold D. North, Jr., Shaker Heights, Ohio, as-

signor to The Engine Parts Manufacturing Company, Cleveland, Ohio, a corporation of Ohio Application August 16, 1948, Serial No. 44,519

4 Claims. (01. 299-111) This invention relates to a spraying device and the general object is to provide a light-weight manually portable spraying device which shall be simple in construction, effective in operation, and easily assembled and convenient to use. More specific objects include the provision of a spraying device of this character which is provided with a nozzle means arranged to form an elongated uniform pattern; and which device is provided with a hood designed to confine the spray and mist from the nozzle means; and which hood may be mounted upon a light collapsible frame designed to be readily attached to and detached from a liquid-carrying tubular frame to which the nozzle means is connectedi Specific objects include the provision of collapsible frame for supporting a tent-like hood extended from above the nozzle means and supporting the hood in an outwardly flared position. It is desirable to provide a hood of material suitable to resist any chemical action of the spray fluid and which of itself shall be light in weight while being resistant to tearing.

In using my invention I provide a light-weight tubular boom adaptable to be grasped midway of its length and which may be attached to a container carrying the spray-fluid under pressure. At the opposite or forward end a tubular member carries the nozzle means which means may comprise two, three or more spaced-apart nozzles, and the collapsible frame supporting the hood attached to this cross member. A preferred form of this arrangement, attaining the foregoing and other objects of my invention, is illustrated in the accompanying drawings, in which Fig. 1 is a perspective view of the hand boom showing the hood in operative position.

Fig. 2 is a vertical section taken longitudinally of the member carrying the spray nozzles.

Fig. 3 is a plan view of the hood frame 001- lapsed. 1

Fig. 41s a side elevation ofsame.

Fig. 5 is detail showing the connection between the frame and nozzle connections.

Fig. 6 is a transverse section showing the same connection taken at right angles to Fig. 5 and showing one of the supporting arms connected to the lower hoop of the frame.

Fig. 7 is a detail on the same scale as Fig. 6 showing the strut for holding the frame in its extended and operative position.

Fig. 8 is a view of the hood material before being applied to the frame.

Fig. 9 is a detail on a large scale showing the means of attaching hood to the lower frame hoop.

The following description refers first to a suitable hand boom and spraying device to which my collapsible frame for supporting the hood may be attached.

Referring to the drawings by the use of reference characters at the right of Fig. 1 is shown a flexiblehose l to which may be connected the portable. pressure tank for the spray fluid while the other end of this hose l is attached to a light, but'rigid, pipe section 2 shown as connected with a T 4 for mounting a gauge 5 as shown. The other side of the T 4 is connected through a valve 3 with the forward section 6 of a light weight tube. This tube has its forward end bent downwardly at a suitable angle, as shown at l, and a connection 8 in the nature of a coupling provides for attaching the intermediate extension 9 of the nozzle"tube Ill. The ends of this nozzle tube are bent downwardly as indicated at I I and I2 and carrying nozzles 13 and I4 while a branch below the member In is fitted with an intermediate nozzle I5.

At either side of gauge and its supporting connection I may provide suitable handgrips indicated at l6 and IT, Fig. 1. It will be noted that the forward section 6 of the boom is curved upwardly slightly, so that the nozzles may be pointed substantially vertically downwardly while the boom is held in a position most convenient to carry.

The parts thus far described comprise a port- .able spray boom which may spray a path or swath several feet wide using a suitable pumpup or knapsack garden spray can. In using such a spraying device, particularly if the spray is of the nature of 2,4-D, and by the low gallonage method andthus in a fine mist-like spray, it is desired to direct and confine this spray and mist for most effective use, and it is also desirable to confine the spray for the protection of surrounding shrubbery, and the like.

To this end, I provide the device of the present invention comprising a collapsible wire frame of very light weight and support the hood in tentlike fashion over the same.

The frame shown comprises essentially a lower and an upper closed oblong hoop, the lower hoop being designated 20 and having a length and width suitable to clear the spray from the nozzles, as will appear. The end of this frame hoop 20 may be rounded and it may have parallel sides, as shown, and it may be formed of suitable guage wire or light rod. The upper hoop 22 is somewhat shorter and narrower, and also has parallel sides and rounded ends. Connecting these two hoops are a series of spaced-apart legs or strut members 25, which are hinged to the upper and lower hoops.

The upper hoop is provided with attached devices in the nature of spring gripping members 30 adapted to embrace the tubular members supporting the nozzle.

The hinged arrangement for the legs 25 may comprise small washer-like eyelets 26 welded or similarly secured to the lower frame hoop 20, and each receiving a closed hook 21 formed at the lower end of each leg 25. At the upper ends the legs 25 are provided with eyelets or hooks 28 embracing the ends of supporting members 29 which extend inwardly and upwardly, and in turn are secured to the grippers 30.

These supports or grippers 30 may comprise U-shaped fiat spring members embracing the downspouts or a nipple supporting the nozzles; for example, the member l2 shown in Figs. and 6 carrying the nozzle l4. Theymay spring over and support the load of the hood and frame, or may be tightened in position, as by a screwbolt indicated at 32. The upward extensions of the members 29 are suitably secured as by welding to the outside of the pipe members 30, while at their outer ends members 30 are provided with heads 33. The loop forming the eyelet 28 of each leg 25 may fit between the upper frame hoop 22 and one of these heads 33 thus locating them in the position shown while permitting pivotal action.

When the legs 25 are swung upwardly carrying the top frame member 22 upwardly into the position shown in Fig. 2, the frame may be held in this operative position by bracing members, shown as comprising

struts

35 and 36, each provided with a loop or hook as, at 31, loosely engaging an eyelet member 38 similar to the member 36 and welded, in the position shown in Fig. '7, to the end of the upper hoop 22. These end struts or hinged legs may be thrust into sleeves 40 and 4| in turn welded to the ends of the lower hoop 20. The parts of the frame are capable of bending sufficiently to allow them to be inserted as indicated in Fig. '7, in which position they support the frame firmly in its extended position.

From the foregoing description it will be seen that I have provided a small, collapsible hood frame that may be easily extended into the hood receiving operative position.

A preferred form of hood to be carried on the collapsible frame may be made from a single piece of material shaped so that when folded once, flat, it may take the position indicated in Fig. 8, and when unfolded it may be pulled down tightly over the frame, taking the position indicated in Fig. 1. This hood, designated H, is preferably transparent or translucent material, reinforced with a screen weave or cross threads 50. The lower edge of the hood is provided with a binding strip 52 which carries eyelets 53 and through which a lacing cord 55 may be passed, and then around the lower frame hoop 20, affording a convenient method of securing it to the frame.

Through the middle portion of the hood material are openings as shown at 51 which pass over the nozzles when the hood is in the position indicated in Figs. 1 and 2. The hood rests upon the frame as indicated in dot-and-dash lines in Fig. 6 at the upper part of the frame with these openings 51 closely surrounding the nozzles. The hood is tightly drawn around the frame when in use.

The frame when collapsed may be packed with its hood and other parts of my spraying apparatus in a flat package. As will be seen, the assembly of the entire apparatus is very simple. The collapsible frame is first opened upwardly or set-up and secured by inserting the ends of the hinged leg 35 into their respective sleeves on the ends of the lower hoop. The hood is then placed over the wire framework pulled down tightly and laced in position, as described. Assuming now that the nozzles are assembled with the boom frame, the support clips or collars 32 are fitted over the nozzle pipes and the screws 32 may be tightened. The pressure tank of spray-fluid may thus be connected to the flexible tube 2| and after opening the usual valve of the supply container, the spray may be started and controlled by the carrying hand of the operator at the valve 3, it being understood that the supply tank is carried in the other hand or by a strap over the shoulder.

Having thus described my invention, I claim:

1. A spray confining hood and supporting frame therefor for use with a hand boom spraying device having a plurality of nozzles rigidly connected and arranged for creating an elongated pattern of flaring fine mist spray, said hood comprising a one-piece sheet and a frame for supporting the hood in an outwardly flared position, the sheet having openings through whidh the nozzles project and the frame having an oval-shaped lower hoop, means attaching the perimeter of the sheet to the lower hoop, a rigid elongated upper hoop extending along the nozzles and over which the sheet is stretched, struts pivoted to the sides of the lower hoop and to said boom to permit movement bringing the hoops toward the same plane for collapsing, a strut pivoted to the upper hoop and a detachable connection for holding said strut to the lower hoop to support the frame in extended operative position.

2. A manually portable spraying device comprising a rigid tubular hand boom adapted to be connected to portable supply container for spray fluid and provided with nozzle means for creating a fine mist spray in an elongated pattern, a one-piece transparent spray confining hood, and a collapsible frame for supporting the hood comprising an elongated hoop at the open lower side of the hood, strut members supporting the hoop and extending upwardly and inwardly inside of the hood, and pivotal connections at the upper and lower ends of the strut members with the hand boom and with said hoop respectively.

3. The structure defined in claim 2 in which the collapsible frame for supporting the hood includes an upper rigid elongated hoop secured to the boom and over which the hood is adapted to be stretched.

4. The combination of a portable boom spraying device having nozzles forming an elongated flaring spray pattern, a hood and collapsible supporting frame for holding the hood in position to conform to the outside of the spray pattern, said collapsible frame comprising a lower 5 oval-shaped hoop attached to the perimeter 0! REFERENCES CITED the hood an upper Oral-Shaped hoop shorter The following references are of record in the and narrower than sa1d lower hoop, means sefile of this patent: curing the upper hoop to the boom above the nozzles, struts pivotally connected to each of the 5 UNITED STATES PATENTS hoops and extending inside of the hood, and Number Name Date latching means comprising struts at the ends of 415,638 Hawks Nov. 19, 1889 the hoops for holding the frame in hood-sup- 499,203 Bricker June 13, 1893 porting position, said latching struts each being 503,455 Dugan Aug. 15, 1893 adapted to be disconnected from one of the hoops 10 1,164,940 Jackson Dec. 21, 1915 and being pivoted to the other hoop. 2,085,055 Taylor July 6, 1937 HAROLD D. NORTH, JR. 2,367,594 Madison Jan. 16, 1945