FI101132B - Filter - Google Patents

Description

5 101132

FILTER

The invention relates to a filter according to the preamble of claim 1.

Today, water treatment and filtration takes place mainly in large municipal technical treatment plants. In sparsely populated areas, the water is treated with house-specific equipment that filters all domestic water. Also commonly used are pipeline-specific patio funnel filters to provide clean water to specific faucets, as well as small cartridges to be installed at the end of the downcomer and devices attached to the faucets to obtain clean water from a single faucet. Faucet-specific filters usually operate under pressure, as a result of which fast flows of the filter result from the filtration result. Some of this equipment also operates without pressure. However, there is a lack of an affordable filtration unit in the market, suitable for cutlery and, for example, hotel rooms, as well as for tourism and camping use, which can also be used as a beverage container. In addition, the small-20 filters on the market are too expensive to be used for water treatment in developing countries.

• \ ·.

The object of the invention is to provide a filter by means of which the disadvantages of the prior art are avoided and an advantageous and practical solution for water filtration is also achieved in developing countries.

♦ «. \ • · · • · ·% ·

The invention is characterized by what is stated in the characterizing parts of the claims.

1.30 The invention according to the application has a number of significant advantages.

• · φ *. Since the structure of the invention is based on mass-produced • ·: Vj: food containers, such as disposable beverage containers, its design is very well suited for use in connection with cutlery or • V: hotel rooms. For example, in the southern '*' 9 ...? S resorts, the solution according to the invention is very useful. . because hotel and domestic waters often contain intestinal 101132 2 bacteria that cause intestinal diseases. Up to 10,000 glasses of water can be purified with one filter according to the invention. Due to its low cost and practicality, the invention is also suitable for use in developing countries. The filtration result is consistently good because the water is forced through its own weight through the filtration section. The fact that the body can be used as a drinking glass also adds to the practicality.

The invention will now be described by way of a preferred embodiment 10 with reference to the accompanying drawing, in which Figure 1 shows a simplified side view of a filter according to the invention, in which the filter parts are partially separated for clarity 20 of the structure of the top edge of the filter, and *% '· t *: i ·, Fig. 4 shows a top detail of the edge of the filter.

♦ «« ♦%! ·. · Figure 1 shows a filter according to the invention placed on the body part;: '. Ϊ35 1. The body part 1 acts as a filter holder as both a protective and »··· * · *» ”beverage container into which the filtered liquid flows. Partially inside the body part '1, the filterable part 2 is preferably placed so that:: the shoulders of both parts 1, 2 are opposite at 4. a space for the filtered liquid is formed between the bottom of the part 2 to be filtered and the bottom of the body part, • · · * · '/ preferably with a volume of, for example, 0.25 1. The body part • · i ·' · In the case of the example, the volume is preferably 0.5 liters.

• · · i ',. I. . · /.35 At least one hole 9 is formed in the bottom of the filter section 2, the diameter of which 101132 3 is, for example, 6 mm. A dense sieve net 5 or the like is arranged on top of the hole to prevent the filtrate from escaping. The size of the mesh openings is of the order of 0.1 mm. A filtering material, for example silver-plated activated carbon 5, is arranged on the net 5. The substance to be filtered removes bacteria, heavy metals, humus, etc. From the water to be filtered is arranged, preferably by gluing, a pouring part 3. Several holes 10 are formed in the bottom of the pouring part 3 and a sieve mesh 6 is through the bottom holes 9, 10 in the beverage container 1. In a preferred case, the strainer nets 5, 6 are arranged against the end surfaces of the filter space 8, in front of the holes 9, 10, by means of a spring 11. The spring 11 is preferably a compression spring which compresses the strainer nets 5, 6 against the end surfaces.

15

At least one hole 12 is formed in the edge of the stacking shoulder of the pouring part 3, through which the vacuum preventing the flow can escape from the filtration space 8. At the same time, it ensures a uniform filtration speed in all conditions. The diameter d of the hole is preferably of the order of 1-2 mm, most preferably 1.5 mm. In this case, holes

• I I

is most preferably 3 pieces. The space between the vessels, i ^ '2 and 3, acts as a passageway for air (Fig. 3).

• i. '·'

• · · I

'. [, 1 For the hygiene of the filter and for the duration of storage, it is provided with a cover 13, which is preferably • · · ·

TfJ ’: equipped with a fastening member suitable for the edges of the pouring part 3.

: Y: The filter part 2 is thus preferably formed with an applicator on the bottom of a disposable beverage container and a 30 second second beverage container of a similar type is placed on the bottom of the first beverage container! · ♦ 9 · • m.i | inside the container, whereby the filter medium remains in the space between the bases * · '·' of the containers 2, 3 8. The conicity of the containers 2, 3 makes it possible to • »« * I i 1 ·! · place the containers nested, leaving the bases *: ** : * for different levels. Holes 9, 10 are formed in the bases and in addition • V35 they are provided with strainer nets 5, 6. The containers 2, 3 are preferably glued together at 7 in this case. on top of the third glass 1. Assembled in this way, the filter-beverage container combination is in working order. The liquid to be filtered 5 is poured into the pouring part 3 of the glass, from where it flows through the strainer base and the filter medium into the drinking glass 1 acting as a body part.

10

The most essential and important for the operation of the filter is a steady and sufficiently slow filtration speed. The ratio of the diameter of the filter liquid outlet to the diameter of the filter surface should be 1/10 and the ratio to the mass strength of the filter medium is 1/5.

The invention is not limited to the accompanying embodiments, but many modifications are possible within the scope of the inventive idea defined by the appended claims.

20 <• I t '.

• \ '| i, • f>

Mil1.

«· · • ··· • · · s1 • ·« · 0 0 · • · · • · · · • · · · · · «· · · · · · · · $ ·· · ♦. · • 1 «1 •« ♦ · ♦ · • i «. $ 1 · • f • · · · | ·

Claims (6)

101132 A filter, in particular for filtering domestic water, characterized in that the filter is formed by two, preferably conical, containers (2, 3) arranged one above the other so that there is a space (8) between the bottoms of the containers in which filterable material, that at least one hole (9, 10) is formed in the bottoms of the containers and the bottoms 10 are provided with a sieve net (5, 6) or the like. Filter according to Claim 1, characterized in that the containers (2, 3) are disposable containers known per se. 15 Filter according to Claim 1 or 2, characterized in that the strainers (5, 6) are arranged on the end faces of the filter space (8) and are pressed against the ends by a compression spring (11) arranged in the filter space. .V 20: i: Filter according to one of Claims 1 to 3, characterized in that n e t t u that a channel ·! is arranged in the filter space (8). to or near the top of the pitcher portion (3). * ·· $ 1: 1:.: 25 Filter according to Claim 4, characterized in that the channel of the side walls of the containers (2, 3) acts as a channel. . and that at least one hole (12) is formed in the pouring part (3), which extends into said channel. • · · • · · • · Filter according to one of Claims 1 to 5, characterized in that a lid (13) covering the pouring opening can be removably attached to the pouring part (3). • 1 • · · i · •. I 4 · · • 1 1G113 2