U.S. patent number 3,797,708 [Application Number 05/299,396] was granted by the patent office on 1974-03-19 for dispenser for discharging a quantity of a substance into a conduit.
Invention is credited to Bobhumil Sypal.
United States Patent |
3,797,708 |
Sypal |
March 19, 1974 |
**Please see images for:
( Certificate of Correction ) ** |
DISPENSER FOR DISCHARGING A QUANTITY OF A SUBSTANCE INTO A
CONDUIT
Abstract
The invention pertains to a dispenser by means of which a given
quantity of a substance can be discharged into a conduit wherein
flows a fluid, said dispenser including a container having a
discharge outlet, a connection between said outlet and said
conduit, releasable closure means for said outlet and a neck within
said conduit close to said connection.
Inventors: |
Sypal; Bobhumil (Toronto 4,
CA) |
Family
ID: |
3858814 |
Appl.
No.: |
05/299,396 |
Filed: |
October 20, 1972 |
Foreign Application Priority Data
Current U.S.
Class: |
222/630; 239/310;
222/544; 406/127 |
Current CPC
Class: |
B01F
5/0496 (20130101); E03C 1/046 (20130101) |
Current International
Class: |
E03C
1/04 (20060101); E03C 1/046 (20060101); B01F
5/04 (20060101); B05b 007/28 () |
Field of
Search: |
;222/193,47,48,49,50,510,519,520,522,523,525,548,549
;239/310,315,316 ;137/268 ;23/267A,267E,272.7,272.8 |
References Cited
[Referenced By]
U.S. Patent Documents
Foreign Patent Documents
|
|
|
|
|
|
|
653,035 |
|
Oct 1937 |
|
DD |
|
492,943 |
|
May 1957 |
|
CA |
|
Primary Examiner: Tollberg; Stanley H.
Assistant Examiner: Martin; Larry
Attorney, Agent or Firm: Richards & Geier
Claims
What I claim is:
1. A dispenser for discharging a quantity of fluid into a fluid
conduit having a neck, said dispenser comprising a container having
a bottom and a discharge outlet in said bottom, a connection
between said outlet and said fluid conduit, displaceable closure
means for said discharge outlet, a sleeve surrounding the inner end
of said outlet and projecting from said bottom, said sleeve forming
a guide for said closure means, a cover for said container, said
closure means having a closure member axially displaceable within
said sleeve, a rod integral with said closure member, said rod
extending through said container and projecting outside of said
cover, and a spring urging said rod towards said bottom, said
sleeve extending to the vicinity of said cover, a wall of said
sleeve having a helical slit, said rod being hollow and having a
helical slit through its wall the slope of which is opposite to
that of the slit in said sleeve.
2. A dispenser according to claim 1, wherein at least one passage
is provided through said closing member, between the inner volume
of said hollow rod and the external surface of said closure
member.
3. A dispenser according to claim 1, wherein the upper end of said
hollow rod projecting outside of said cover is provided with an
operating means having one profiled surface in contact with a cam
means on said cover, whereby rotating said operating means causes
an axial displacement of said rod.
4. A dispenser according to claim 3, wherein the outer face of said
cover is provided with a scale indicating the volume of fluid
discharged from the dispenser for given angular positions of said
operating means the latter being provided with a reference means.
Description
The present invention relates to a dispenser device for discharging
a quantity of a substance into a conduit wherein flows a fluid. The
term "substance" as herein used encompasses liquids, creams,
powders, emulsions and solutions.
An object of this invention is to provide such a dispenser by means
of which a chosen or random quantity of a substance can be
discharged when desired into a conduit wherein flows a fluid,
without interrupting said flow.
Another object is to provide such a dispenser which is of economic
yet rugged construction.
These objects are attained, according to the invention, by a
dispenser comprising a container having a bottom and a discharge
outlet in, respectively at the level of, said bottom; a connection
between said outlet and said fluid conduit; a displaceable closure
means for said discharge outlet; connected to said closure means,
an operating means extending at least partially outside of said
container; and a neck within said fluid conduit, upstreams of said
connection with respect to the direction of flow of the fluid
within said conduit.
One particular field of application of such a dispenser is in
conjunction with sanitary appliances, in homes, hospitals and so
forth, i.e., to add pharmaceutical or cosmetical products to tub,
seat bath, bidet or pool water feeds.
To illustrate the features and advantages of the dispenser
according to the invention, two embodiments thereof are described
hereafter in detail, reference being made to the appended drawings,
wherein:
FIG. 1 is a side elevation of a dispenser according to this
invention, one half of which being shown in radial section;
FIG. 2 is a radial section through another dispenser according to
the invention;
FIG. 3 is a partial top view according to arrow F.sub.3 of FIG. 2;
and
FIGS. 4 and 5 are cross-sections, respectively according to lines
IV--IV and V--V of FIG. 2.
The dispenser 1, according to FIG. 1, allows to discharge a
measured quantity of fluid contained therein to a conduit 2 wherein
flows another fluid, in the direction as shown by arrows. The
dispenser comprises a container 3, for instance cylindrical in
shape, having a bottom 4 and a removable cover 5. A discharge
outlet 6 is provided in bottom 4 and communicates with the inside
of conduit 2 through a tapered connection 7 ending into a passage
8.
A guide-sleeve 9 projects from the bottom 4 within said container
3, around the entrance to said discharge outlet 6. A series of
parts 10 is provided in sleeve 9, close to bottom 4.
An axially displaceable closure member 11 is slidably fitted into
sleeve 9, said member having a cylindrical body 12 extended by a
tapered part 13 terminated by a pin 14.
The closure member 11 is fitted at one end of an operating rod 15,
the other end 16 of which projecting outside of the container,
through said cover 5. A spring 17, acting on a projection 18 of the
rod 15 normally maintains the closure member 11 in its closure
position, wherein said tapered connection 7 forms a seat for said
tapered part 13 and said pin 14 extends through passage 8.
A neck or venturi 18 is provided in conduit 2, close to passage 8
and upstreams thereof with respect of the direction of flow of the
fluid therein.
Assuming that one fluid is placed into container 3 and that another
fluid flows through conduit 2, it will be sufficient to pull on end
16 of rod 15 so as to lift the body 12 of closure member 11 at
least above the lowermost part of passages 10 to obtain a discharge
of fluid from the container 3 into conduit 2, due to the suction
effect created therein by fluid leaving neck 19. An air passage 20
is of course provided such as in cover 5. The quantity of fluid
thus discharged into conduit 2 may readily be measured if at least
part of the wall of container 3 is made of a transparent or
translucent material provided with scale markings 21.
In the embodiment illustrated in FIG. 2, wherein like parts are
indicated by the same reference numerals as in FIG. 1, the sleeve 9
extends up to near the cover 5, whilst rod 15 is hollow and
slidably fits into sleeve 9.
A helical slit 22 (shown in dotted lines) is provided in the wall
of said sleeve 9, extending from near the bottom 4 to near the top
of the sleeve and around not more than 120.degree. of its
periphery. A slit 23 is similarly provided in the wall of hollow
rod 15, said slit 23 having however an opposite slope to that of
slit 22. Where these two slits cross each other, they define a
passage 24 through which fluid can flow from container 3 into
hollow rod 15 and hence, through passages 25 provided to that
effect in closure member 11, into outlet 6 if rod 15 is raised as
explained hereinafter.
It is clear that the distance between passage 24 and bottom 4
depends on the angular position of rod 15 with respect to sleeve 9
so that the amount of fluid discharged into conduit 2 may be
adjusted by rotating rod 15. To this effect, the outer end 16 is
provided with a knob 25 having a pointer 26, scale markings 27
being provided on cover 5. To raise rod 15 whilst rotating knob 25,
the underside of the latter is provided with a ramp 28 resting on a
similar ramp 29 constituted by the profiled edge of a collar 30
projecting from cover 5. The ramps 28 and 29 are so disposed that
passage 24 is in its upermost position when rod 15 is in its
lowermost position.
Although the two slits 22 and 23 have both been described as being
helical in shape, it will easily be understood that either one of
them could be straight and the other helical, with the same
effect.
The function of pin 14 is to prevent any risk of passage 8 becoming
clogged, when for instance viscous or sticky fluids are to be
dispensed but it is evident that such a pin could be omitted. It is
also clear that closure member 11 may be given any suitable shape
such as hemispherical or conical.
It is also obvious that, if the container 3 is to be mounted
underneath conduit 2, the bottom 4 with its associated parts as
described with respect to the embodiments shown in FIGS. 1 and 2,
would be made as a removable cover and be provided with an air
passage 20 whilst a suitable water tight packing should be provided
between rod 15 and the bottom of the container.
In some instances, it might be advisable to provide the end 16 of
rod 15 with an operating means such as i.e., an electro-magnet, and
to provide time measuring means to control the duration of the
discharge of fluid, emulsion, powder or solution, respectively the
discharged quantity thereof.
Various other modifications can be brought to the embodiments
described hereabove, within the scope of the claims hereafter.
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