Water filter abstract
Apparatus for supporting a water filter inlet in a body of water
at a level between the bottom and the surface thereof and in such
position as to enable water to enter a conduit via the filter inlet
and pass through a conduit to a site on land. The filter inlet support
has a frame which occupies an upright position and is provided with
stabilizers which prevent movement of the support due to currents
and the like.
Water filter claims
1. Apparatus for supporting a water filter intake in a body of
water at a level below its surface and above its bottom, said apparatus
comprising filter intake support means for supporting a filter inlet
at said level; a frame for supporting said support means; and stabilizing
means carried by said frame and slideably extendable beyond said
frame in a direction to be embedded in said bottom while said filter
intake is supported at said level.
2. The apparatus according to claim 1 wherein said filter intake
support means comprises a support member having an upwardly concave
surface for at least partially embracing said filter intake.
3. The apparatus according to claim 2 wherein said support member
4. The apparatus according to claim 2 wherein said support member
5. The apparatus according to claim 1 wherein said stabilizing
means comprises at least one post slideably supported by said frame
for movement relative to said frame in a direction toward the bottom
of said body of water a distance to embed one end of said post in
6. The apparatus according to claim 5 including guide means carried
by said frame for guiding said post during said movement.
7. The apparatus according to claim 6 wherein said frame in a direction
laterally of said frame.
8. The apparatus according to claim 5 wherein said guide means
comprises a cylindrical sleeve open at opposite ends thereof.
9. The apparatus according to claim 8 wherein said post extends
beyond said opposite ends of said sleeve and has an enlargement
at its upper end which precludes passage of said upper end through
10. Apparatus for supporting a water filter intake in a body of
water having a surface and a bottom and at a level below the surface
and above the bottom, said apparatus comprising a frame having at
each of two opposite ends a pair of supporting legs; connectors
joining one pair of said legs to the other pair of said legs, thereby
coupling said pairs of legs to one another; at least one filter
intake support carried by said frame in such position as to locate
said intake at said level when the pairs of supporting legs rest
upon said bottom; at least one stabilizer guide carried by said
frame; and at least one stabilizer post assembled with said guide
for vertical adjustment relative to said frame and embedment in
11. The apparatus according to claim 10 including one of said stabilizer
guides at each end of said frame and one of said stabilizer posts
in each of said guides.
12. The apparatus according to claim 10 wherein each pair of said
supporting legs is in inverted vee form.
13. The apparatus according to claim 10 including two of said filter
intake supports each of which comprises an arcuate, upwardly concave,
14. The apparatus according to claim 10 wherein said filter intake
support comprises a cylindrical tube.
Water filter description
This invention relates to apparatus for supporting a water intake
filter in a body of water and at a level between the bottom of the
body of water and the surface thereof.
BACKGROUND OF THE INVENTION
It is common practice to withdraw water from a lake or a stream
for irrigation or other purposes. The apparatus usually includes
a conduit extending from shore into the body of water. The conduit
conventionally is coupled at one end thereof to a pump and at the
other end to a filter which is immersed in the water so as to be
submerged at all times. The filter conventionally is designed to
prevent undesirable debris such as stones, twigs, marine life, and
the like from entering the inlet end of the water conduit, but it
is possible for sand and other sediment to pass through the filter
into the conduit. Particularly is this true in those instances in
which the filter occupies a position close to the bottom of the
body of water.
The undesirability of entraining sand and other sediment with the
water introduced to the conduit has been recognized heretofore.
Various kinds of equipment have been proposed in an effort to minimize
the entry of sand and the like into the conduit via the filter intake.
However, the equipment proposed heretofore has had certain shortcomings,
such as awkwardness of installation, an inability to stabilize the
inlet filter against undesirable movement due to currents and the
like, and, in some instances, inconvenient withdrawal of the conduit
in those instances in which removal is desirable for one reason
An object of the invention is to provide a support for an inlet
water filter which overcomes the disadvantages of known constructions
adapted for similar purposes.
SUMMARY OF THE INVENTION
A filter intake support according to one embodiment of the invention
has a frame provided at each end with a pair of downwardly diverging
legs and connectors extending between the pairs of legs for rigidifying
the frame. At the upper ends of the pairs of legs is at least one
support for a filter intake that is coupled to a conduit which also
may be supported by the frame. The lower ends of the legs may rest
upon the bottom of the body of water so that the filter intake is
supported at a level above the bottom, but well below the surface
of the water, thereby minimizing the intake of sand and other sediment
which normally lies at the bottom. The frame is provided with a
pair of vertically oriented guides in each of which is a stabilizer
post which can be moved vertically in a direction to embed the lower
ends of the posts deeply into the bottom, thereby providing a stable
placement of the supporting frame which resists movement in response
to currents and the like.
The stabilizer posts have enlargements at their upper ends which
facilitate vertical movements of the posts relative to the frame.
The enlargements also are of such size as to preclude downward movement
of the posts a distance sufficient to cause the posts to clear the
lower ends of the guides.
Another embodiment of the invention provides a rectangular frame
having an upper railed support for a filter intake which is of canister
configuration. The supporting frame has downwardly extending legs
which may engage the bottom and stabilizing posts of the kind described
The presently preferred embodiments of the invention are disclosed
in the following description and in the accompanying drawings, wherein:
FIG. 1 is a fragmentary, end elevational view of one embodiment
of the invention;
FIG. 2 is a fragmentary, side elevational view of the embodiment
shown in FIG. 1;
FIG. 3 is a fragmentary, end elevational view of a second embodiment;
FIG. 4 is a top plan view, with certain parts omitted, of the embodiment
shown in FIG. 3; and
FIG. 5 is an end elevational view, with certain parts omitted,
of the embodiment shown in FIG. 3.
THE PREFERRED EMBODIMENTS
Apparatus according to one embodiment of the invention for supporting
a water filter intake is illustrated in FIGS. 1 and 2 as comprising
a supporting frame 1 having two pairs of downwardly inclined legs
2 and 3 joined by a pair of horizontal, parallel connectors 4 and
crossbars 5. At their upper ends the legs 2 and 3 of each pair are
secured to a saddle-shaped, arcuate, upwardly concave support 6.
In end elevation the legs 2 and 3 of each pair present a substantially
inverted vee configuration. The lower end of each of the legs 2
and 3 is free so as to be capable of being thrust into the bottom
of a stream, lake, pond, or other body of water. Preferably, the
connectors 4 and the crossbars 5 are at such level relative to the
free ends of the legs 2 and 3 as to limit the extent to which the
legs may be embedded in the bottom.
Supported on one or other of the legs 2 of each pair is a vertical
guide 8 through which slideably extends a stabilizer post 9. The
lower end of each post 9 may be squared or pointed, as desired.
At the opposite end of each post is an enlargement 10 which facilitates,
vertical movements of the post and prevents such post from passing
completely through the guide 8 and separating from the remaining
The supporting frame 1 is adapted to accommodate in one of the
supports 6 a filter inlet 11 of known kind and to which is connected
one end of a conduit 12 which, although not shown, also is supported
in the other support 6 and extends therefrom to a pump (not shown)
In use, the frame 1 is located in a body of water with the lower
ends of the legs 2 and 3 firmly seated on or embedded in the bottom.
The filter inlet 11 and the conduit 12 then may be laid in the supports
6 which partially embrace them. The depth at which the frame 1 is
immersed in the water should be such that the inlet 11 is sufficiently
far above the bottom as to minimize the possibility that sand and
silt may enter the conduit 12 via the inlet. However, the inlet
also should be at a sufficient distance below the surface of the
body of water that the inlet will not be dislodged by a passing
boat or other craft.
Once the frame is positioned at a suitable site, the stabilizer
posts 9 may be pushed downwardly so as to imbed the lower ends of
the posts in the bottom. By embedding the posts in the bottom the
frame and the inlet will be maintained in a stable position so as
not to be affected by currents even when the speeds of such currents
To remove the filter inlet and the conduit from the frame it is
a simple matter to lift them from the supports 6 following which
the posts 9 may be raised from their embedded positions in the bottom.
The enlargements 10 facilitate such upward movement of the posts.
Following the adjustment of the posts the entire frame, the filter
inlet 11 and the conduit 12 may be removed from the water.
The embodiment shown in FIGS. 3-5 is similar in many respects to
the previously described embodiment. The second embodiment comprises
a frame 13 having spaced pairs of upright legs 14 and 15 joined
by upper and lower connectors 16 and 17. To the lower connectors
16 are secured additional connectors 18 and 19 which form a base
for a canister-type filter inlet 11a to which may be coupled a conduit
21 in known manner. In this embodiment the lower ends of the legs
14 and 15 extend below the lower connectors 16 18 and 19 so as
to be capable of being embedded to a limited extent in the bottom
of a body of water.
Secured to suitable ones of the frame members 14 and 15 are tubular
guides 22 through which stabilizing posts 23 slideably extend. The
lower ends of the posts may be squared or pointed and the upper
ends are provided with enlargements 24 in the same manner as has
been described in connection with the first embodiment.
The manner of placing the frame 13 on the bottom of the body of
water is the same as has been described earlier. The frame should
be placed in a generally upright position so as to minimize the
possibility that the filter inlet will be displaced. However, such
displacement positively can be prevented by the provision of additional
horizontal connectors 25 as shown. Once the frame has been positioned
in the manner previously described the stabilizing posts 23 may
be moved downwardly and embedded in the bottom so as to stabilize
the position of the frame and the filter inlet in the manner previously
In each of the disclosed embodiments the materials from which the
filter inlet supporting apparatus is formed are sufficiently rigid
and resistant to deterioration due to exposure to water as to ensure
a lengthy useful life. Suitable materials include aluminum, steel,
galvanized iron, and rigid plastics.
The disclosed embodiments are representative of presently preferred
embodiments of the invention, but are intended to be illustrative
rather than definitive thereof. The invention is defined in the