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Патент USA US2122639

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July 5, 1938.
Filed July 22, 1936
2 Sheets-Shee’c’l
July 5, 1938.
Filed'July 22, 1956
2 Sheets-Sheet 2
Patented July 5, 1938
Amiel L. Faiver, Buena Park, Calif., assigner to
Diffuser Corporation, Fullerton, Calif., a cor
poration of California
Application July 22, 1936, Serial No. 91,862
1 Claim. (Cl. 299-87)
This invention relates to diiiusers.
'I‘he general object of the invention is to pro
vide an improved dilfuser by means of which var
ious chemicals can be projected into a space to be
5f.: treated.
Another object of the invention is to provide
a novel nozzle for a diffuser.
An additional object of the invention is to pro
vide a novel blow-off valve for a diiîuser.
Another object of the invention is to provide a
diiîuser including a novel container having novel
vessel supporting members therein.
Another object of the invention is to provide a
novel mechanism for controlling the amount of
15 chemical discharged by a diffuser.
Other objects and the advantages of the in
vention will be apparent from the following de
scription taken in connection with the accom
» panying drawings, wherein:
Fig. 1 is a. top plan View of a diifuser embodying
the features of my invention;
Fig. 2 is a central, sectional view taken on line
2-2 of Fig. 1;
Fig. 3 is a fragmentary, sectional View taken on
25 line 3-3 of Fig. 2;
Fig. 4 is an enlarged, fragmentary, sectional
view showing the discharge nozzle and associated
Fig. 5 is a section taken on line 5-5 of Fig. 4;
Fig. 6 is an enlarged, fragmentary side eleva
tion showing the diffuser;
Fig. 7 is a central, sectional view showing the
blow-olf member; and
Fig. 8 is a side elevation of the sleeve.
Referring to the drawings by reference charac
ters I have shown my invention as embodied in a
diiiuser which is indicated generally at I0.
shown the diffuser includes an outer container
II which may be made of metal or other suitable
40 material and which may be provided with a side
seam I2 and with a bottom I3 secured thereto.
The bottom may be provided with bosses I4 upon
which the container is supported. The container
is shown as provided with a bail I4' and with a
45 closure I5 which has a sliding ñt with the con
tainer so that the closure is removable.
The container II is provided with a plurality
of viewing apertures I6 and with a lining I'I
which may be made of “Cellophane” or similar
50 material. Within the container I arrange a ñxed
shelf I8 which includes a ílange I9 and supporting
ears 20 which may be riveted as at 2I to the
container and above the shelf I8 I provide a sec
ond shelf 22 which includes a bottom 23 having
55 sides which are pivoted as at 24 so that the shelf
may swing to a position parallel to the shelf I8.
The shelves I8 and 22 areemployed to support
vessels which hold chemicals. The shelf I8 is in
tended to support a relatively long chemical hold
ing vessel while the shelf 22 when lowered to the
dotted line position in Fig. 2 serves to hold a
shorter vessel. As shown in the drawings the
shelf I8 is employed to hold the chemical holding
Vessel 25 which has a threaded cap 25 thereon.
'I'his cap is provided with a central aperture 21. 10
'I‘he upper end of the vessel 25 projects through
an aperture 28 in the closure I5.
Disposed within the container I I I show a steam
generating device indicated generally at 29. As
shown this device includes a receptacle 30 which 15
may be made of glass and which has a metallic
lid 3| mounted thereon. The lid is provided with
suitable apertures in which grommets 32 are
mounted. These grommets 32 are preferably
made of vulcanized liber, or similar insulating 20
material and through the grommets electrodes 33
extend. 'I'he electrodes 33 include terminal por
tions 34 adapted to be disposed below the normal
water level 35 in the receptacle 30.
Mounted on the receptacle I show a discharge l25
tube 36 which includes a lower iiange 31 which
serves to hold the tube in place on the lid 3 I. The
tube passes through a grommet 38 on the closure
I5 and is provided with a circumferentially ex
tending groove 39 which is intersected by aper 30
tures 40 which alford communication between the
interior of the tube and the groove. Mounted
within the tube 36 I provide a blow-off valve mem
ber 4I which threadedly engages the interior of
the tube and. which includes a lower aperture 35
42 and a hexagonal valve member 43 which slid
ably fits in a cylindrical aperture 44. The aper
ture 44 communicates with an outlet 45.
When the pressure within the container 29 be
comes excessive the valve member 43 is moved 40
from its seat to relieve this excessive pressure.
Mounted upon the tube 36 I show a sleeve 46.
This sleeve is held in place by a ñange 4l on the
valve member 4I and the sleeve has an aperture
in which a nozzle 48 is mounted. This nozzle 48 45
communicates With the groove 39 previously men
tioned. The construction is such that steam gen
erated in the container 29 passes out through the
nozzle 48 and through a discharge member-49
on the end of the nozzle. Mounted within the 50
nozzle I show an injector tube 50 which tube
passes through the aperture 2l previously men
tioned and extends to a location near the bottom
of the chemical holding vessel 25. The injector
tube 50 passes through the wall of the nozzle 48 as 55
at 5| Where a leak-tight joint is provided and ex
tends to a. location 52 at the end of the discharge
member 49. The length of the downwardly ex
tending portion of the injector tube Will be varied
to suit the conditions and when long vessels are
employed as shown in Fig. 2 the tube will 'be of
the length shown.
If shorter vessels are em`
ployed then the length of the.; lower portion of
the tube A50 will _be _correspondingly decreased.
'I'he nozzle 48 adjacent to the discharge mem
ber 49 is engaged by a plurality of screws 53 _
shown as three in number which are threaded in>
apertures in the nozzle and which engage the
end of the injector tube. By releasing two of the
15 screws and tightening the third -screw the posi
tion of the injector tube 50 relative 'to the outlet
of the end 52 may be shifted thus shifting the
eccentricity-of the tube 50 with respect 'to the noz- 1
zle so that the injection effect may be varied.
With my invention when the steam .generating
apparatus is operated the heat _generated therein
passes through they Walls of the :generating ccn
tainer thus heating the chemicalA holding vessel,
My device is adapted for use with various types
of chemicals and may be used for treating various
spaces in order to destroy flies, mosquitoes, etc.
My device may be employed with solutions con
taining pyrethrum or other materials as desired.
From the foregoing description it will be ap
parent that I have invented a novel diñuser which
canbeeconomically manufactured _and which is
highly eñicient linuse. f ." f ¿fr
l" '
yI-Iaving thus described my invention‘I claim:
‘generating device, said steam generating device
including a receptacle, a lid on said receptacle,
a discharge tube on` said lid, a sleeve removably
`mounted-on said tube, a closure member threaded 15
Within saidtube 'and having a flange thereon en~
gaging said sleeve to normally prevent removal of
'the sleeve, said tube having apertures there»
through, said sleeve having a nozzle therein corn
municating with said apertures, an injector tube 20
extending into , said vessel,l said injector tube
piercing said nozzle intermediate the .length of
the fnozzle,;said injector extending yinto andalong
also the steam passing through the nozzle warms
the interior of said nozzle,. said nozzle having an-
the latter thus -causing the material Adrawn into
outlet, the diameter of said outlet being .greater
than -theiexterior- diameter of said injector tube.
the injector to vbe heated. Thus vthe :high tem
perature is maintainedby thechemic'als being
employed so that a better distribution is secured.
.. In a diffuser, a chemical holding vessel, a steam
` , AMIELÍL; salvan.
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