US2041399A

US2041399A - Spray head

Info

Publication number: US2041399A
Application number: US713501A
Authority: US
Inventors: Graaf Martin De
Original assignee: Individual
Current assignee: Individual
Priority date: 1934-03-01
Filing date: 1934-03-01
Publication date: 1936-05-19
Anticipated expiration: 1953-05-19

Description

May H99 E936., M. DE GRAAF SPRAY HEAD Filed March l, 1934 2 Sheets-Shea*l l /Yarfl'n #De Qraa/ May 1199 N3@ M. DE GRAAF www SPRAY HEAD Filed March l, 1954 2 Sheets-Sheet 2 Mmm De (jm/f @M www Cil Patented May 1.9, 1936 l UNITED STATES PATENT oFFlCE Application March 1,

Claims.

The present invention relates to spray heads and more particularly to vaporizing units adapted for use in conjunction with Vegetable display stands or for use in air humidification.

The principal objects ofthe invention are to provide a spray head of the character above indicated having adjusting means for directionally controlling the vflow of the vaporized moisture; to provide such a device having adjusting means for controlling the amount of water it is desired to Vaporize; and, to provide such a device which is attractive in appearance, economical in manufacture and highly eflicient in use.

An illustrative embodiment of the invention is shown in the accompanying drawings, wherein:

Figure l is a perspective view of a vegetable display stand adapted for use in retail grocery stores and provided with the spray head of the instant invention;

Figure 2 is a transverse sectional view thereof;

Figure 3 is an enlarged View of the spray head 4 housing showing its water Vapor emitting open- 111g i i Figure 4 is an enlarged view of the spray head assembly, portions thereof being in longitudinal section and other portions being broken away to better show its structural and functional characteristics;

Figure 5 is a sectional view of the spray head housing on lines 5-5 of Figures 3 and 4;

Figure 6 is a sectional View on line 6 6 of Figure 4;

Figure 7 is a sectional View on line 'I--l of Figure 4; and

Figure 8 is an enlarged longitudinal sectional view on line 8--8 of Figure 4.

Referring then to the drawings in which like parts of the structure shown are designated by the same numerals in the several views, a display stand I9 is provided with an angularly disposed screened top II for supporting displayed vegetables. A supply conduit I2 connected with any suitable source of water supply under pressure is preferably disposed beneath the wire screening parallel thereto and running substantially the length of the display stand and medially of its width.

A plurality of spaced vertically disposed auxiliary water supply conduits I3 are connected with the main conduit I2 as by T-unions I4 and project above the wire screening. The upper end of each conduit I3 is preferably provided with a valve tting I5 for housing the valve I6 which may be adjustably controlled by the manually operable knurled head II. This valve fitting is pro- 1934, serial Na. 713,501 (C1. 29e-58) vided with a vertically projecting water emitting head I8 which is here shown as externally screw threaded for receiving the internally screw threaded nozzle retaining cap IS.`

Spacedly encircling each auxiliary conduit I3 5 is a drain conduit for draining waste water therethrough and through the drain ports 2I in the valve fitting I5 on opposite sides of the valve I5 and through the drain ports 22 on opposite sides of the T-unions I4 into the base of the display stand which may be provided with a drain pipe 23 here shown as at one end of the stand.

Ari annular gasket 24, preferably of rubber or of some other resilient material, and whose upper surface is concave is'disposed within the cap I9 whose under surface is likewise concave. A nozzle comprising an elongated member 25 is provided with a longitudinal bo-re 26 and with a spherical portion 2l adapting the spherical portion to be seated in the socket formed by the oppostely disposed concave surf'aces of the gasket l24 and cap I9. A ball and socket joint is thus formed between the nozzle and its conduit and permits of a limited angular adjustment of the nozzle relative to its conduit for directionally controlling the emitted water spray. The upper end of the nozzle is externally screw threaded and a cap 28 therefor is internally screw threaded for retaining the resilient element 29 and the spray forming element'30 which is provided with a bore 3I of a Very small diameter, all as best shown in Figure 8. The spray forming element 35 is preferably of glass which is non-corrosive and the water emitting bore 3| is thus maintained open and free of corrosion. By providing a nozzle with the elongated member 25 which is tapered at the inlet end thereof, sediment and other relatively large foreign matter carried by the water through the conduit I 3 are less likely to be passed through the longitudinal bore ,26 of the nozzle to clog the bore 26. In other words, such foreign matter is more likely t0` pass beyond the intake opening or orice of the longitudinal bore in the portion 25 of the nozzle upwardly toward the inner surface of the cap I9.

Mounted at the upper end of each drain conduit 2l) is a spray head housing comprising the rigidly secured funnel portion 32 and the dome portion 33 which is supported by the vertically 50 disposed rods 34 secured to the annular ring 40 which is mounted in vertically adjustable screw threaded engagement with the drain conduit. By rotating the knurled head of the dome portion 33, the Width of the vapor emitting opening may 65 be varied for adjustably controlling the Vapor flow therethrough.

A vaporizing baiiie 3B against whose under surface the spray from the nozzle impinges is suspended from the dome portion 33 as by the ball and socket connection between the head 31 and the upper surface of the dome portion. A coiled expansion spring 38 surrounding the shank 39 and interposed between the battle plate and the under side of the dome portion of the spray head housing is provided so that the baiiie may be maintained in its angularly adjusted position to further directionally control the flow of the water vapor emitted through the opening 35.

In operation, Water under pressure owing through the Water supply conduit I2 is supplied to the auxiliary conduits I3 and the amount flowing therethrough may be controlled by the manually operable valve I6. As the Water is emitted through the nozzle orice 3l, a ne spray is formed which impinges upon the baffle 36 causing the spray to Vaporize and pass through the spray emitting opening 35 of the spray head housing. The Water vapor is thus adaptable for use either in maintaining vegetables supported on the display stand in a fresh condition or as a humidifier for humidication purposes. Water which is not thoroughly Vaporized is permitted to low back through the drain conduit into the base of the display stand and thence out through the drain pipe 23.

Either or both the nozzle and baffle may be manually angularly adjusted for directionally controlling the Water vapor emitted through the opening of the spray head housing as hereinbefore described and it will thus be seen that the device is not only attractive in appearance and economical in manufacture but is highly e'cient in use.

While but one specific embodiment of this invention has been herein shown and described, it

will be understood that numerous details of the construction shown may be altered or omitted without departing from the spirit of this invention as dened by the following claims.

I claim:

1. In a structure of the class described, a Water supply conduit having an angularly adjustable nozzle, a housing associated with respect to the conduit spacedly encircling the nozzle and provided with a vapor emitting opening, and a vaporizing baille secured to and depending within the housing.

2. In a structure of the class described, a water supply conduit having an angularly adjustable nozzle, a housing associated with respect to the conduit spacedly encircling the nozzle and provided with a vapor emitting opening, and an angularly adjustable vaporizing baffle secured to and depending Within the housing.

3. In a structure of the class described, a Water supply conduit having a nozzle, a housing associated with respect to the conduit spacedly encircling the nozzle and provided with a vapor emitting opening, and an angularly adjustable vaporizing bale secured to and depending Within the housing.

4. In a device of the class described, a spray head, an angularly adjustable vaporizing baille, and a housing for the spray head and vaporizing bale having a vapor emitting opening Which is adjustable as to its Width.

5. In a structure of the class described, a Watei` supply conduit provided with a nozzle, a housing associated with respect to the conduit spacedly encircling the nozzle, a dome spacedly associated With the housing axially adjustable relative thereto to form a vapor emitting opening adjustable as to its Width, and an angularly adjustable vaporizing bafe Within the housing.

MARTIN DE GRAAF.