DE964817C - Filter for aquariums with a water delivery activated by compressed air - Google Patents

Description

The invention relates to a filter for aquariums.

Devices are known that use the bottom sand of the basin as a filter layer. The fact, that sand or gravel filters water in an excellent way has been known from time immemorial (source, Groundwater etc.).

At your known devices immersed Riser pipe in the bottom sand of the pool. Another pipe for the compressed air is located inside the riser pipe. This device has the following disadvantages:

Only washed sand can be used as a substrate be used,. otherwise the impurities will be washed out by the water flow, but constantly open to the water through the discharge be fed back.

The impurities, suspended particles, feces of the Fish, dead parts of plants, not eaten Dry fodder, etc., is sucked into the ground sand, causing rot and decomposition Gen. Mud and sludge collect above the floor covering, the more the closer it gets is located near the riser pipe. The entire floor covering becomes muddy and encrusted as a result with time. When cleaning, the entire floor covering must be removed and washed, or he must be completely renewed). This particularly affects the plants, but also the fish

709 524ß3

and it also causes a great deal of work.

The whole of Idares · water is never pumped, as there are always sand particles and other small particles in suspension are flushed out of the soil immediately next to the riser pipe. To avoid this, devices are known that

within. of the riser pipe have a filter chamber ίο or one below the riser pipe Own sieve; also those

in which the riser pipe and air supply pipe are firmly fixed in a porous body. There are also devices in which the riser pipe and air pipe are in a special container, that is embedded in the floor covering, or those that

with the riser pipe and air pipe in a special Beao filled with a filter material open to a holder that can be embedded in sand or placed on the floor covering can.

These devices also have the above-mentioned. Mistake that she still has too much air need in order to convey a sufficiently large amount of water, furthermore that they contain mud and also suck in fry and young juveniles and these Collect immediately next to the filter container. Here they rot and cause thereby fish diseases of the most varied kinds. The new invention avoids all these disadvantages and also has the following advantages:

The filter can be filled with sand, gravel, peat, coal or any other filter material to fill.

It works both on the substrate, only up completely in the substrate. embedded to the entry slots, as well as. External filter outside the aquarium.
The air consumption is very minimal.

For cleaning, you only have to take the filter out of the basin, without affecting plants and animals be disturbed; outside of the basin it is easy to clean and fill with new filter material. • 45 A washing out of suspended particles or Grains of sand is impossible through the clarification chamber, as these parts are inside the clarification chamber collect and sink to the bottom.

Will the filter only up to the inlet openings built into the ground, so is a. Encrustation and silting up of the sand impossible, since this is not used as a filter layer and therefore no impurities in the substrate be sucked in; the sand always stays clean. Can because of the better plant growth. Even unwashed sand can be used as a substrate, which only has a thin layer washed sand is covered. Rinsing is impossible because the filter is perfect is separated from the ground.

So far, these advantages were only partially available in the external filter, in which the entire filter device outside the pool. the page was placed in a special container. The filtering took place in this container. This route was awkward and required one further pump device to pump the water from the basin into the container. The whole Impurities were caught and collected in this container and. went in very quickly Putrefaction and. Decomposition over and causing a very unpleasant; Odor.

In the drawing, the invention is described in an exemplary embodiment.

You can see the filter in a suggested aquarium corner, embedded _{in the floor covering, sand or gravel H 1.} At 1 you can see the, collecting pot in which the cleaned and filtered water collects and in which any grains of sand that may still have passed through the bottom sieve 3 of the filter chamber 2 settle. At 2 you can see the filter chamber, which is filled with the filter material 13, sand, gravel, coal, peat, etc. At 4 you can see the · standpipe, which with the bottom sieve. 3 of the filter chamber 2 is firmly connected. At 5 are the vertically arranged entry slots. Filter chamber 2 and; Collecting pot 1 are conical and can be joined together by gentle pressure and small rotation, thereby preventing the water from penetrating. The lid 6 is held by the tension of the material of the filter chamber 2; the standpipe 4 protrudes through the cover. As a result, it is impossible for it to slip or move. At 11 the supply line of the compressed air pump is attached. The compressed air flows through the compressed air pipe 8 into the riser pipe /. The air bubbles that arise and rise in the riser pipe exert a suction effect and convey the water from the outlet opening 10 back into the basin. This results in the collecting pot 1 is compensated for by the subsequent flow of water, a small negative pressure, which is sucked in through the inlet slots 6, passes then through the filter mass 13 and passes through the perforated tray ¹ 3 in the collecting pot. If the filter is completely built into the substrate, the water is first cleaned through it and then filtered again through the filter material. According to the law of communicating pipes, the water inside this riser pipe is just as high as in the basin. Because the compressed air pipe 8 opens into the outflow pipe 7 approximately in the middle, only a small overpressure is required to convey the water out through the outflow opening by means of the rising air bubbles above the confluence of the compressed air pipe. The same amount of water that is called out at 10 then flows through the inlet slots through ¹ ; Water pressure inside the basin and, due to the negative pressure inside the collecting pot, back into it. This creates a constant flow of water, i.e. a cycle of water, in which the soil. and the filter mass retains and retains all impurities.

The riser pipe 7 is firmly connected to the air pipe 8, and rotatable on the standpipe 4 and. extendable for every basin height. In order to reduce the air consumption even further, the Outflow opening 10 are also located below the water surface. This affects the way it works of the filter in, not in any way, and also has the advantage that the ascending, Air bubbles also serve to aerate the water inside the pool.

As it is completely embedded in the substrate, the filter becomes invisible and does not interfere in any way more the overall sight. This has not been the case so far. The known devices at. those a filter chamber in the spout was interfered with the overall impression of the Basin and was perceived as unattractive and therefore rejected.

Claims (1)

PATENT CLAIM: Filters for aquariums with buckets marked by compressed air operated, water pumping through one, containing the filter material !, provided with inflow openings for the water, and a container with a perforated bottom, penetrated by a riser pipe, which is thus in a bottom and laterally closed sedimentation vessel is inserted sealingly that between, the sieve bottom of the Filter container and the bottom of the sedimentation vessel a gap remains in which the Riser pipe protrudes. 1 sheet of drawings © 609 736/62 12.56 (709 524/33 5. 57)