DE7405001U - Aquarium filter - Google Patents

Description

Gilbert Plate, 2870 Delmenhorst, Bremer Strasse 27/51 .

Aquarium filter

The invention relates to an aquarium filter with a cylindrical fiJter jacket made of soft foam plastic or the like, the one axially extending, unilaterally closed bore to the transducer surrounding a suction device.

In a known Aqvarienfilter of this type (DT-PS 935 820) a suction pipe is inserted into the bore, at which a negative pressure is applied, so that liquid from the aquarium container through the filter material sucked through and discharged through a drain port. DT-PS 1 070 875 shows a Aquarium filter of this type, in which the suction tube is on the side Has bores and the filter body or des-sn unilaterally closed axial bore completely permeated so that liquid can be sucked in through the filter material from the side.

The well-known aquarium filters mentioned at the beginning

Genus have the disadvantage that per unit of time j

only a relatively small amount of _c 3 liquid f

can be transported through the filter mass. |

because the one made of soft foam plastic

Filter body in the axial bore to seal ^l

System arrives at the suction or riser pipe, so that;

inside the filter body is not sufficient

large range of fluids for the suction device ^!

results. . ;

The invention is based on the object of creating an aquarium filter of the type mentioned at the outset,
transported at the inside of the filter body, that is in the \ axial bore for the suction device a big] reservoir of already by the filter ^{weight:-oriented} liquid is available. The aquarium filter should be inexpensive to manufacture and thereby
be particularly versatile that means
fewer, constant elements, such as the singing device and the like, filters of any size depending on the
the present application conditions
can be. In addition, the aquarium filter according to the invention is intended to be able to be expanded as a kit with various connection elements and inserts
as well as, apart from its actual purpose as an internal filter, as a pre- or post-filter
in a system that works with an external pump.

»· ■» et ·

• · O ·

According to the invention, the object defined above is achieved in that in the axial bore of the pilter jacket or filter body, a rigid-walled, sieve-like spacer tube is inserted, which is preferred in Further development of the invention made of a grid-like plastic material, preferably polyethylene, can exist.

This ensures that there is a clear water collector inside the filter jacket, in which there is Liquid, which has already passed through the filter material of the filter jacket, can accumulate.

Although DT-OS 1 611 085 has already made known an aquarium filter in which the filter body is made of consists of a ring jacket made of filter fibers, the inside and outside by a stiff-walled lattice tube each commercially available Design is limited, but with this filter a voluminous propellant charge is below the actual one Arranged filter, which is supplied with air from below, so that only a small part of the total surface area the device is available for filtering purposes. This is in contrast to the invention Proposal in which the entire surface area is used for effective filtration, only an unsatisfactory one Filter performance achievable because too little water is fed to the suction device per unit of time. The Venturi propellant is in relation to the filter area and to the volume of the inside space tube Collecting spaces designed too large, reducing the filter performance is still deteriorating.

According to the invention it is further proposed that the grid webs of the spacer tube extending in the axial direction essentially with axially smooth, opposite

the crossbars raised protruding outer surfaces formed are: This makes it easier to insert or move the inner spacer tube into the bore of the Filter jacket or within the bore as well as the possibly desired axial displacement of the suction device facilitated within the spacer tube.

Usually takes place in the aquarium filter according to the invention Use of an emergency sheath made of cohesive, soft foam plastic. However, it can also be provided be that the spacer tube is concentrically surrounded by an outer sieve tube of the same or similar structure is, where the filter mass is then filled into the space between the tubes: This makes it possible to use almost any filter material in the space between the two To fill sieve tubes, whereby there is a wide range of variation in the design of the invention Aquarium filter results, depending on the desired filtering conditions.

It is recommended that this be done vertically the lower end of the filter jacket with a spacer tube inserted into it through a water-impermeable one flat end cap is completed, which is on the Ϊ11 term jacket, encompassing this on its outer surface, can be attached. On the end cap is preferably a fastening device for attachment to an indoor aquarium wall or the like, for example a suction plate or the like.

In contrast to the known aquarium filters discussed at the beginning, in a preferred embodiment of the invention from the top end in the vertical installed state in the spacer tube sin venturi-like acting propellant with air supply and Water drainage used, with water drainage and air supply preferably one on top of the filter jacket

1!

Bare end cap se can penetrate rust-sealing. A ^ oh. on this top cap, which is offset to the central hole for the water drain and the side this arranged bore for the air supply can be constructed analogously to the lower end cap can .. Here, a fastening device, preferably a suction plate must be provided, so that it is then possible to use the entire aquarium filter of the two suction plates, one of which is located on the lower or upper end cap to attach to the inner wall of an aquarium tank.

In a preferred development of the invention it is proposed that the propellant charge a with the water drain having connected riser, the outer diameter of which is much smaller than that Inside diameter of the spacer tube and at its outer end a conical tube with the amount between the outside diameter of the riser pipe and the inside diameter of the spacer pipe horizontal diameter is attached, in the above as. Self-sealing air supply formed by an air hose joins. The air hose preferably opens into one inside the tube by means of a spacer inserted removable air stone, creating a finely beaded air distribution and thus an optimal The suction effect of the propellant, i.e. a discharge of liquid that passes through the filter jacket, which collects in the inner disiance pipe, which acts as a clear water collector, through the water drain is guaranteed.

The tube preferably has on the outside a

diameter of the spacer tube adapted spacer, it is further proposed that the propellant with the end cap self-sealing and longitudinally displaceable penetrating air supply and corresponding Vasseic'bfluss formed and as a whole within the Spacer tube 1 is arranged displaceably. If the spacer tube is the grid-like described Training, the spacer of the tube acts with the axial lattice bars of the inner Spacer tube together like a rail, making the propellant charge easy to move within of the spacer tube is guaranteed.

A connecting piece can be attached to the end of the riser pipe penetrating the upper end cap, thus for example a hose connection or also a protein separator of a type known per se or similar. The versatility of the aquarium filter proposed according to the invention is based precisely on it The fact that the plug-on option and the conversion option make it possible to combine various types of tzolenents is, this possibility of the length of the actual filter jacket completely independent is: In other words, filter jackets of different sizes can also be used within a modular system can be used without the need for different propellants or end caps to acquire. This not only results in a great versatility of the system, but also the aquarium

Freund also offers very affordable solutions. For example, on the riser a post-filter attachment can also be attached.

It is also proposed that the inner spacer tube can be shorter than the filter jacket, wöbe *, the spacer tube in the filter jacket essentially up to the flow with its upper face ring pulled up and in the lower end of the filter jacket a core made of elastic material, preferably Foam plastic or the like, i.e. the same material from which the filter jacket is made, clamped is. This allows an additional filter element, preferably from a flat filter bag filled with any filter material can be pinched.

For inexpensive production, it is also proposed that all components of the aquarium filter according to the invention, possibly with the exception of the air stone, from the hardness and elasticity of the Plastics adapted to the respective intended use exist.

In contrast to the well-known, commercially available indoor aquarium filters the filter designed according to the invention enables the construction of a complete filter system, which helps the aquarium enthusiast, to solve all problems that arise during the operation of an aquarium by building a kit similar to different

Filter media can be used. By simply changing the length or composition of the Filter jacket there is the possibility of filter media of various types, such as biological ones Filter, to use, to place the filter inconspicuously in the aquarium container as well as d6 .: Easy to change the Filtsrmassen. The individual parts of the system can be divided among each other replace, which results in multiple filter options with different combinations. In other words, it is possible to buy a basic model first and then to buy it You can improve the purchase of different types or different sizes of filter cartridges. Even with the transition to external filter systems, for example with centrifugal pump drive, the basic system according to the invention, once acquired, can again be used as Pre- or post-filter system, e.g. as a nitrate sieve or carbon sieve, can be used.

The possibility of using the riser pipe of the Put on post-filter cartridges proposed according to the invention aquarium filter, for example, can also be softened, acidified or denitrated. For this, for example, known anion and Use cation exchangers and various types of filter fibers, which are also used in the case of the described Embodiment with concentric inner and outer sieve tubes as the filter mass, the filter jacket can form.

If a filter jacket made of foam plastic is used, the mechanical filtering in the filter jacket occurs in that the liquid passes through the filter ma ..tel is transported and then kept free in the axial bore through the spacer tube Κίε: collectors accumulates. Form in the foam jacket so-called rotifer cultures develop within a short period of time, so microscopic rotifers, which in addition to mechanical filtering for a ensure the biological degradation of the smelting particles held in the gauze cover. Here are protein products degraded to plant-compatible substances, which detoxifies the aquarium water is brought about.

Because in one of the above-described embodiments of the aquarium filter according to the invention a foam core can be clamped in the lower end of the filter jacket, it is possible to between the filter jacket and the foam core a filter bag with a nitrate or carbonate filter pin Clamping the substance, whereupon the lower end cap is of course put back on. Another possible application of the aquarium filter according to the invention is that, without Use of the actual filter body, from which the air stone is removed and from the tubes of the propellant instead, the same foam core is inserted into the tube that is otherwise used in the case of the above

/ IΨ

Application form described, can be inserted into the lower end of the filter jacket: As a result you get a mini filter. for spawning or Quarantine basin, with the foam core preferably is only pushed halfway into the tube. The mini filter is then passed through the The suction cup attached to the upper end cap is attached to the glass wall.

Of particular importance is \. it is that, in contrast to the commercially available aquarium filters, in which the filter jacket cannot be replaced alone, in the case of the aquarium filter according to the invention, the whole of the filter jacket and the spacer tube bztf. the spacer tubes existing filter cartridge can be exchanged, which is only used as an exchangeable insert between the upper and the lower end plate. The filter mass can of course, if it is not a closed filter jacket made of foam plastic, but rather the embodiment with concentric inner and outer sieve tubes, for example consist of filter media such as cation exchangers, anion exchangers, activated carbon, fibers or filter wadding. The essential idea of the invention, however, is, as should be emphasized again, that for the first time a filter with an inner cavity is provided as a clear water container in which the propellant charge is arranged to be longitudinally displaceable. This stands

among other things, an optimal use of the filter body over the entire length is available because
even when using perforated riser pipes, such as
they were known per se, no full utilization of the filter jacket surface was guaranteed.

If the aquarium filter according to the invention is only used as a pre- or post-filter in a centrifugal pump system Is used, the propellant is of course removed, whereupon then the top end cap is put back on with water drainage.

Further features / advantages of the invention emerge from the following description in which
two embodiments based on the drawing in
are explained individually. In doing so:

1 shows a first embodiment of the aquarium filter according to the invention, in an exploded view;

Fig. 2 shows the embodiment shown in Fig. 1 in the assembled state in axial longitudinal section; and

Fig. 3 ^e i ⁿ e Anwendungsmoglichkeit of the aquarium filter of the invention in a perspective view.

As Fig. 1 shows, the aquarium filter according to the invention has a filter jacket 10 made of soft foam art

Ii I '

«T I

- 12 -

fabric or the like into which an inner sieve-like formed spacer tube 12 is inserted. The spacer tube 12 preferably has a smaller one axial length than the filter jacket 10 and generally consists of a grid-like plastic, For example, polyethylene, the lattice bars a particularly good movability of both the (Spacer tube 12 within the filter jacket 10 as

also that still to be explained, within the spacer tube 12 arranged propellant allow in the axial direction.

A flat end cap can be attached to the bottom of the filter jacket 10, which in the attached state has one Clear water collector 16 - see FIG. 2 - forming the axial bore of the filter jacket 10 closes "laterally know !: the end cap has a suction device 18.

On the upper end of the filter jacket 10 is a

x ·. ·., upper end constructed analogously to the lower end cap 14

cap 20 placed, the central bore of which is surrounded by a connecting piece 22 a riser pipe 24 of the in Fig. 1 as a whole with 26 designated propellant, which causes the water circulation like a venturi, self-sealing interspersed. In the embodiment shown in FIG. 2, there is a bend on the upper end of the riser pipe 28 put on. The upper end cap 20 also has a suction device 30 so that the entire aquarium filter by means of the suction devices

18, JO ^{can be attached to} the inner wall of the aquarium tank.

The propellant charge 26 has, as Fig.- 1 shows, in addition to already mentioned climb. Ear 24 an elastic air tube 32, the upper end cap 20 self-sealing interspersed and ir. A conical tube 34 at the top opens in a self-sealing manner and into its Inside a star-shaped spacer 36 ar. an air stone 38 is connected. Outside the tube 34 has a spacer 40, so that in the installed state, as shown in Fig. 2, not irir the air stone 38 centrally in the tube 34-, butv In addition, the tube 34 itself is also centric is held in the inner, sieve-like spacer tube 12.

If nitrate or carbonate filters in the form of filter bags are also to be used in the embodiment shown in FIG lower end of the Fil ^ ermantels 10 to 42 djr designated point, a foam core inserted, is placed around the outside thereof, such a filter bag which can be clamped thereby ic plastic foam existing Filtormantel. Then the end cap is put back on. Instead of the filter jacket 1C shown in the drawing and consisting of solid foam plastic, an embodiment

740S0Q1-6.6.74

form can be used in addition to the inner spacer tube 12 an outer spacer tube arranged concentrically thereto is also provided, wherein the filter material, for example filter floss, between the two sieve-like spacer tubes is inserted .. The two spacer tubes consist of commercially available, for this purpose laid out mesh tubes.

The entire propellant charge 26 can be used as a mini filter in that the air stone 38 is removed and instead the foam plastic core, which can otherwise be introduced at 42 in the manner described, is partially inserted into the tube JA. In this embodiment, the aquarium filter according to the invention is then particularly suitable for spawning or quarantine tanks.

■ "" ig. 3 shows another possible application of the Aquarium filter according to the invention, in which on the A protein separator designated as a whole by 44 is attached to the upper end of the riser pipe 24 instead of the bend is. This consists of a tubular body 46 with an inner transverse wall 48 and a lower end cap and a top end cap 52. These end caps are correct in the structure again with the end caps 20, 14 of the embodiment shown in Fig. 1 and in Fig. 2 in essential match. A pipe socket 5 ^ protrudes from below, penetrating the lower end cap 50 of the protein separator 5 ^, into the chamber 56 of the protein separator 44 formed below the transverse wall 48, wherein Laterally out of the chamber 56 an outlet 58 leads out, the

a

- 15 -

must be placed slightly below the level of the water surface in the aquarium. Operational Now, rising liquid flows out of the riser pipe 24 into the lower protein separator chamber ί> 6 and is there by the air bubbles contained therein foamed, the protein-containing constituents being present in the see. While the liquid is through is recirculated through outlet 58, the foam rises through an ir> the transverse wall 48 attached nozzle 60 into an upper formed above the transverse wall 48 Protein separator chamber 62 and can be removed from this by removing the end cap 52 and tipping it out. The end cap 5.2 also has, like the lower end cap 50 of the protein separator 44, a further suction device 64 - below: 66 - on.

It is of particular importance that all individual parts of the aquarium filter according to the invention are exclusive are held together by plug connections. All parts, with the exception of the air stone, if applicable 38, are made of plastic, although plastics of different hardness or elasticity are of course different Find use, depending on the place of use.

j those in the description above, in the drawing

as well as in the following claims disclosed features of the invention can both individually and in any combination for the realization of the

^{ , Invention in its various embodiments we

be essential.

BOEHMERT & BOEHMERT

Actο: ρ

REFERENCE CHARACTERISTICS (LIST OF REFERENCE NUMERALS)

1 1 2 P. *> 4th 4th 5 5 6th 6th 7th 7th 8th 8th 9 Q 10 filter jacket 10 11th 11th 12 spacer tube 1? 15th 1 ⁵ y 14 end cap 14th 15th 15th 13 clear water collector 16 17th 17th 18 Inriehtunsr sauce 18th 19th 19th 20 end cap 20th 21 <r: i 22 nozzles 22nd 23 25th 24 riser pipe 24 25th 25th Pfi Trejhqntz 26th 27 27 to Κ ^ ΐίτηπι θ τ * 28 29 29 50 sow set-up; 30th

BOEHMERT & BOEHMERT

31 31 32 air hose 32 33 34 I ¹ UbUs 34 35 35 36 Di & ianzstück 36 37 37 38 air stone 38 39 39 40 spacers 40 41 41 / f2 position 42 43 43 44 protein absorbers 44 45 45 46 tubular body 4fc 47 47 43 bulkhead 48 49 49 50 end cap 50 51 51 ^ 2 end cap 52 53 33 J> 4 pipe socket 54 $ 6 Chamber S6 57 57 58 Let it go 58 59 59 60 nozzles 60 61 61 62 chamber 62 63 63 64 suction device 64 65 65 66 suction device 66

Claims (18)

Expectations 1. Aquarium filter with a cylindrical filter jacket made of soft foam plastic or the like, the one axially extending, closed on one side 'Has a bore for receiving a suction device, characterized in that in the axial bore (16) of the filter jacket (.10) a stiff-walled, sieve-like formed spacer tube (12) is inserted. 2. Aquarium filter. According to claim 1, characterized in that that the disiance tube (12) made of a grid-like, rigid-elastic plastic Γ \ material, preferably polyethylene. 3 <- aquarium filter according to claim 2, characterized in that that the axially extending lattice webs of the spacer tube (12) essentially formed with an axially smooth, protruding outer surface with respect to the transverse webs are. 4-11 4. Aquarium filter according to one of the preceding claims., characterized in that the end of the filter jacket is at the bottom when installed vertically (10) with inserted sieve spacer tube (12) through a flat, waterproof one End cap (14) is complete. 5. Aquarium filter according to claim 4, characterized in that that the end cap (14) on the filter jacket (10), encompassing this on its outer surface, is attached. ^. Aqua: ienfilter according to claim 4 or 5, characterized b-indicates that a fastening device on the end cap (14) (18) is intended for attachment to an aquarium. 7. aquarium filter according to one of the preceding claims, gekennseichnet characterized in that from the vertically installed end at the top in the spacer tube (12) a venturi-like propellant charge (26) with air supply (32) and water outlet (24) is used is, 8. aquarium filter according to claim 7, characterized in that the water drain (24) and air supply (32) push through an end cap (20) that can be slipped onto the filter jacket (10). 9. aquarium filter according to claim 8, characterized shows that the end cap (14) has a fastening device (18) for attachment to an aquarium wall is provided. 10. Aquarium filter according to one of claims 7 to 9 » characterized in that the propellant charge (26) has a riser pipe connected to the water drain (24), whose outside diameter is much smaller than the inside diameter of the spacer tube (12) and at its lower end a tube (34) conical at the top with the amount between the outer diameter of the riser pipe and the inside diameter of the spacer pipe is attached, into which the air supply, designed as an air hose (32), opens up. 11. Aquarium filter according to claim 1O _1, characterized in that the air hose (32) opens into a removable air stone (38) inserted within the tube (3 ^) by means of a spacer (36); and that the air hose made of elastic material penetrates the upper wall of the tube (34) in a self-sealing manner, 12. Aquarium filter according to claim 10 or 11, characterized characterized in that the tube (34) is externally adapted to the inner diameter of the spacer tube (12) Has spacers (40). 13 aquarium filter according to one of claims 8 to 12, characterized in that the propellant charge (26) with the end cap (20) can be moved slowly and is self-sealing penetrating air supply (32) and corresponding water drain (24) formed and as a whole is arranged slowly displaceably within the spacer tube (12). 14. Aq ', aria filter according to claim 13, characterized in that that a protein separator (44) of a known type can be plugged onto the riser pipe (24). 15. Aquarium filter according to claim 13 »characterized in that that a post-filter can be attached to the riser pipe (24). 16. Aquarium filter according to one of claims 4 to 15 » characterized in that the inner spacer tube (12) is shorter than the filter jacket (10); that this Spacer tube (12) in the filter jacket (10) essentially up to the alignment with its upper end ring surface is pulled up; and that in the lower end of the filter jacket (10) a core made of elastic Material, preferably foam plastic or the like, is inserted. 17 · Aquarium filter according to claim 16, characterized in that an additional filter element, preferably in the manner of a flat filter bag _{v, is} clamped between the foam core and the filter casing (10). 7 * 05001-11- 7-i- 18. Aquarium filter according to one of the preceding claims, characterized in that all components, with the exception of the air, if applicable; one, in terms of their strength or elasticity of the respective place of application adapted plastics and are all detachably connected to one another by means of plug connections.