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Патент USA US2134967

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Nov.‘ 1, 1938.
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L. DURGEN
' 2,134,967
FILTER
Filed May 10, 1937
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BY
INVENTOR
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ATTORNEY!
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Patented Nov. 1,1938
2,134,967
* UNITED STATES PATENT OFFICE
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2,134,967"
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FILTER.‘
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Le'o' Din-gen, San Francisco, Calif.
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Application May 10, 1937, Serial No. 141,695
4 Claims. (Cl.- 210-171)
water. In the present instance, this is’ prevented
by providing a series of ?lter tubes such as indi
dium‘ ?ner materials.
The object of the present invention is to gen
erally improve and simplifythe construction and
. foreign‘ matter to‘ be ?ltered out when‘ the'water l0l
or‘the like. It is accordingly essential that the
20' medium,
tubes be rembved from time to time for cleaning,
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permit
such re-
20
25 hose or duct, which permits the ?lter tubes and
i .‘ cohstriuctedof rubber. or like material, 25
30 the top of the tank, thereby facilitating clean
The ?lter is shown by way of illustration in the
accompanying drawing, in which
Fig. 1 is an enlarged sectional detail view show
35 ing a plurality of ?lter tubes and the ?exible con
nections formed between them; and
r
Fig. 2 is a central vertical section of a ?lter
tank showing the sand bed and the ?lter tubes
disposed above the same.
40 Referring to the drawing in detail, and par
ticularly to Fig. 1, A indicates a tank of suitable
I5 to permit it to be connected with the dis
charge pipe 6. Connected with the hose 1 are a
plurality of ?ttings such as indicated
.
These are cast metal ?ttings, and each ?tting is 30
nected as clearly shown in Fig. 1. Between each
a rubber hose connection such as
?lter tubes carried thereby, an 35
elongated ?exible unit is formed, such as shown
in Fig.» 2. The construction is exceedingly sim
ple. The hose members ll connecting the ?lter
ing tubes or ?ttings H] are secured to the ?ttings
by ordinary hose clamps l2, and'as such, each 40
upper end of the tank, which is normally closed 45
connect the coupling I5, and then pull the entire
unit out of the handhole opening.
hose coupling l5 may be connected with, a‘faucet
to exert internal pressure in the filter ‘tubes,
thereby reversing the ?ow and cleaning themof 55
2,134,967
2
sediment or other foreign matter which may
have settled on the internal surfaces of the
tubes. After the ?lter tubes have been cleaned
or sterilized, or both, they are again reinserted
through the hand-hole opening l4 and are then
connected by means of the coupling l5 with the
discharge pipe 6, the whole operation being com
pleted by merely screwing the cover [6 in place.
A gasket or other suitable means may obviously
ll),
be employed to make a tight connection. '
let, a plurality of ?exible conduits, one between
each ?lter unit, said ?exible conduits forming a
common discharge conduit for all of the ?lter
units; and means for connecting said conduit
with the discharge outlet of the tank.
,
2. In a ?lter of the character described, a tank,
a plurality of individual ?lter units disposed in
the tank to which liquid to be ?ltered is delivered
under pressure, said tank having a discharge out 10
let, a plurality of ?exible conduits, one between
each ?lter unit, said ?exible conduits forming a
While the ?lter tubes B may be made of any
common discharge conduit for all of the ?lter
suitable material, I have found that balsa wood
units; means for connecting said conduit with the
Filter units or _ discharge outlet of the tank, said tank having a
forms an ideal ?ltering medium.
15
tubes are formed from balsa wood by takingv ‘ hand-hole-opening formed therein, through which
round or square blocks of the same and boring at , the connected ?lter units are removable, and a
central passage b’ to receive the extension 9 of . closure for the hand-hole opening.
the ?tting l0, then by applying an ordinary hose
3. In a ?lter of the character described, a tank,
a plurality of individual ?lter units disposed in
clamp a’, as shown, the balsa wood tube‘is secure
ly fastened to the arm 9, and a similar hose} the tank to which liquid to be ?ltered is delivered
clamp 0' may be applied to the opposite closed end underpressure, said tank having a discharge out
20
if desired, this being the best practice, as I have let ; each unit comprising a T-shaped pipe ?tting,
‘ found that balsa wood is more porous to a longi
a ?lter tube connected to the leg or" each T-?t
the
tudinal flow, that is, it offers more resistance to ting; a plurality of ?exible tubes connecting
together ' 25
lateral ?ow, as indicated by the arrows d, than it arms of the T-?ttings and forming,
does to endwise flow as indicated by arrow e. with said arms, a common discharge conduit for
25 Tubes made of balsa wood can be sterilized by all of the ?lter tubes; and means for connecting
dropping or submerging them in boiling water, the conduit with the discharge outlet of the tank.
4. In a ?lter of the character described, a tank, 30
and; they will also stand considerable pressure
both external and internal before disrupting. Be a plurality of individual ?lter units disposed in
the tank to which liquid to be ?ltered is delivered
30 that as it may, while balsa wood forms an ideal
?ltering medium, other materials may obviously under pressure, said tank having a discharge out
let; each unit comprising a T-shaped pipe ?tting,
be employed.
>
While this and other features of the invention va ?lter tube connected to the leg of each T-?tting; 35
have been more or less speci?cally described and a plurality of ?exible tubes connecting the arms
35 illustrated I nevertheless wish it understood that
changes may be resorted to, within the scope of
of the ‘Ii-?ttings and forming, together with said
the appended claims, and that the materials and
?nish of the several parts employed may be such
as the experience and judgment of the manufac
?lter tubes; a detachable connection between said
common conduit and the discharge outlet of the
tank, said tank having a hand-hole openingr
40
turer may dictate.
I claim:
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arms, a common discharge conduit for all of the‘
formed therein through which the connected ?lt
er units are removable, and a closure for the‘
.
1. In a ?lter of the character described, a tank,
a plurality of individual ?lter units disposed in
the tank to which liquid to be ?ltered is delivered
under pressure, said tank having a discharge out
hand-hole opening.
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LEO DURGEN;
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