Odorless drain assembly
An “odorless drain assembly” comprises an outer cylinder (23) with an open top wall, and an inner cylinder (21); said outer cylinder (23) is connected with the inner cylinder (21) by a common base (22); and a gap (D) is formed in between; said outer cylinder (23) is extended with an outer edge curled down and around as a lip portion (24); and a perforated sleeve (30) covers up said inner cylinder (21) with an open bottom wall extended with an outer edge curled up (U-shape) and around as a stopper ring (31). The diameter of said perforated sleeve (30) is larger than the inner cylinder (21) but smaller than the outer cylinder (23); thereby separate inner gap (D1) and outer gap (D2) are divided from the gap (D); further a plurality of pores (32) formed at the lower half portion of a side wall of the perforated sleeve (30).
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The present invention is related to a drain assembly; particularly to an “odorless water drain assembly” that prevents insects and bad odor from coming out of the septic tank or drainage pipe without using the conventional P-traps, found in conventional drainage system being used.
GROUND OF THE INVENTIONPrior known conventional water sewerage or drainage system are those drain assemblies used in kitchen sinks having P-traps to confine water and to trap odor from coming out of the septic tank or drainage pipe.
However, these P-traps can only be used for sewerage system that are installed above the floor with a big space and reserve clean-out rooms, but can not be installed in the flooring or bathroom floors.
Conventional drainage system used in bathroom floor or flooring were provided with strainer to filter the water that is flowing to the drainage pipe or septic tank, but it is not capable of filtering or blocking or sealing odor from coming out of the drainage system.
However, mounting of the “odorless drain assembly” of the present invention under the floor for flowing water to prevent a stagnant pool or backwater, the “odorless drain assembly” is provided with an outer cylinder which has an open top sealed by a cover. A plurality of filtration pores formed through the cover allow water to flow through, but debris are retained on the cover. An inner cylinder is extended upward from the bottom of the outer cylinder. A water reservoir is therefore defined between the inner and outer cylinders. While water flowing in the reservoir exceeds the top of inner cylinder, water will flow into said drainage system. A plurality of filtration pores formed through at the bottom end of perforated sleeve let the water filtered and flow to inner cylinder, but sediments are retained inside the inner cylinder.
However, although debris and sediments may be retained by the cover of outer cylinder, and the inner cylinder respectively; but insects and bad odors coming out from the drainage system could be blocked and trapped. Furthermore, debris and sediments can be regularly cleaned out just using simple tools.
Furthermore, the “odorless drain assembly” connected to the drain pipe by an adapter further wrapped around with water tight tape or seal to flow water without trickling water or leaking water therefrom.
SUMMARY OF THE INVENTIONIt is therefore the primary object of the present invention to provide an “odorless water drain assembly” to solve problems and drawbacks of the prior inventions.
Still another object of the present invention is to provide an “odorless water drain assembly” (also known as “odorless drain assembly”) composed of an outer cylinder (23) and an inner cylinder (21), said outer cylinder (23), being adapted to be fixed on the floorings leading to drain pipe or septic tank, has an open top wall and a bottom wall with a central hole bounded by a drain tube (26) defining a water reservoir thereon, while said inner cylinder (21) having a side wall, a top wall and a flanged open bottom portion adapted to enclosed the drain tube (26), as the inner cylinder (21) is held within the outer cylinder (23), defining a water seal and an odor and insect trap provided by the water reservoir held between the walls of the inner cylinder (21) and the outer cylinder (23).
In detail, said outer cylinder (23) is integrally connected with the inner cylinder (21) by a common base (22) in between; said water reservoir defining by a gap (D) among the common base (22) and the outer cylinder (23) and the inner cylinder (21); the open top wall of said outer cylinder (23) with an outer edge curled down and around to form a lip portion (24); and a perforated sleeve (30) has an open bottom wall is disposed inside the outer cylinder (23) to cover up said inner cylinder (21). Further, the open bottom wall of said perforated sleeve (30) with an outer edge curled up (U-shape) and around to form a stopper ring (31); a diameter of said perforated sleeve (30) is larger than the inner cylinder (21) but smaller than outer cylinder (23); thereby separate inner gap (D1) and outer gap (D2) are divided from the gap (D). Further a plurality of pores (32) distributed through preferably a lower half portion of a side wall of the perforated sleeve (30), where water flowing from the outer cylinder (23) into the inner cylinder (21) along protracted zigzag paths provided by the pores (32). A width of said inner gap (D1) is preferably smaller than the outer gap (D2). And, an open top wall of said inner cylinder (21) is preferably slanted at an angle Θ.
In accordance with a first exemplary embodiment of the present invention as shown in
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The bottom of said cylinder assembly (20) is extended downward with a drain tube (26) for connection to a drainage system or a septic tank. The open top wall of said outer cylinder (23) has inner threads (27) formed on an inner surface thereof to screw to the bottom perimeter of said tapered tap (10). Further, a bottom end of the inner threads (27) is formed with an annular groove (28), a sealing O-ring (90) (refer to
An inner wall of said perforated sleeve (30) is protruded inward with platelets (34); each of the platelets (34) is protruded inward from the rim of each pore (32) likely four-pronged display hook elastically against the inner cylinder (21) by a planar surface. Thus the perforated sleeve (30) is held within the cylinder assembly (20) without any horizontal/oblique movements. The top wall of said perforated sleeve (30) is further extended with an outer edge curled down and around to form a clasp portion (33), whereby the, perforated sleeve (30) held within the cylinder assembly (20) in position by the platelets (34) can be easily taken out from the cylinder assembly (20) by the clasp portion (33) manually.
Said lip portion (24) curled down and around has a hollowed inside for fitting in the bottom perimeter of said tapered tap (10). The hollowed inside substantially has a width (W) larger than an outer diameter of said drainage pipe, when the cylinder assembly (20) fit in the drainage pipe, although a gap (61) (refer to
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Next, the pores (32) will filter out hairs, scraps of paper and foliage are retained within the filtration reservoir (25a) as sediments (70) filtered out to avoid from clogging up the drainage pipe (60). Further, water flowing reduces, and stops overflowing into the inner cylinder (21), a significant amount of still water retained in the reservoir (25) prevents insects, or bad odor (T) (refer to
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Said lower adapter (80b) (refer to
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Advantages and benefits can be achieved by embodiments of the present invention as following:
1. The “odorless drain assembly” (1) is provided with features such as a gap (E) between top perimeters of said inner cylinder (21) and said sleeve (30) at a slant angle Θ, a width of said inner gap (D1) is narrower than a width of said outer gap (D2). A significant amount of water flowing into the “odorless drain assembly” and overflowing into the drainage pipe by an overall open top wall of said inner cylinder. When water flowing is reduced, overflowing into the drain pipe only by a lower portion of said slanted open top wall. Since the reservoir is retained and filled with water, even small drops of water will not leak out from the open top wall of said inner cylinder, it can prevent insects and bad odor from coming out from the drainage system.
2. Said cylinder assembly (20) connected to said upper adapter and said lower adapter by a threaded portion and a drain tube respectively, to facilitate users connected to water bathtub, washing sink and drainage pipe of dimensions. Even the lower adapter can be adjusted to adapt to drainage pipes eccentrically or centrally.
3. Said tapered tap is suitable for receiving covers of dimensions. Further, with dual water filtration capacity, water retained inside the reservoir could prevent air or sewer gas from flowing out of the “odorless drain assembly”, and prevent insects, bad odor and worm from coming out the drainage system. Further, the cover replaced by a pull plug, the tapered tap can be used as a reservoir filled with water.
4. The conventional traps, while they are rendered rapid or aspirated drain will create a gap for the water seal and will cause sewer gas to return and permeate the building. The “odorless drain assembly” will be a double protection for the conventional traps.
5. The “odorless drain assembly” can be filled up by little cooking oil or light motor oil (No. 10-No. 30 motor oil), to take place of water reservoir. This will prevent oil from evaporation and opens traps to regorged sewer gas for quite a long period. In doing so, the house or building will not be permeated with foul smell even if the building is not inhabited for a long time.
Claims
1. An odorless drain assembly comprises: a cylinder assembly (20) consists of an outer cylinder (23) with an open top wall, and an inner cylinder (21) with an open slanted wall at an angle e disposed inside the outer cylinder (23); said outer cylinder (23) is integrally connected with the inner cylinder (21) by a common base (22); a gap (D) is formed among the outer cylinder (23) and the inner cylinder (21) and said common base (22); said outer cylinder (23) is extended with an outer edge curled down and around to form a lip portion (24); and a perforated sleeve (30) disposed inside the outer cylinder (23) with a open bottom wall, said perforated sleeve (30) covered up said inner cylinder (21); said open bottom wall of said perforated sleeve (30) is extended with an outer edge curled up (U-shape) and around to form a stopper ring (3 1); a diameter of said perforated sleeve (3.0) is larger than the inner cylinder (21) but smaller than the outer cylinder (23); thereby separate inner gap (D1) and outer gap (D2) are divided from the gap (D); further a plurality of pores (32) formed at a lower half portion of a side wall of the perforated sleeve (30), where water may flow from the outer cylinder (23) into the inner cylinder (21) along protracted zigzag paths provided by the pores, and filter debris at the same time.
2. The odorless drain assembly of claim 1 wherein a tapered tap (10) is mounted on said open top wall of the cylinder assembly (20); a bottom perimeter of said tap (10) is extended with an inner edge zigzag bent and around to form a round hoop portion (11a) interlocked with the lip portion (24); a top perimeter of said tap (10) is extended with an outer edge curled down and around to form a clasp portion (11b).
3. The odorless drain assembly of claim 2 wherein an annular groove (24a) formed in a concaved portion of the lip portion (24) is adapted to led in the round hoop portion (11a); the round hoop portion (11a) is bifurcated with a bifurcated tongs portion (11c) to resist against the cylinder assembly (20) in position.
4. The odorless drain assembly of claim 2 wherein said tapered tap (10) received with a filtration cover (40) with side arches (41).
5. The odorless drain assembly of claim 2 wherein said tapered tap (10) received with a pull plug.
6. The odorless drain assembly of claim 1 wherein an inner wall of said perforated sleeve (30) is protruded inward with platelets (34); each of the platelets (34) is protruded inward from a rim of each pore (32) as four-pronged display hook elastically against the inner cylinder (21) by a planar surface.
7. The odorless drain assembly of claim 1 wherein an open top wall of said perforated sleeve (30) is extended with an outer edge curled down and around to form a clasp portion (33).
8. The odorless drain assembly of claim 1 wherein inner threads (27) formed on said inner surface of said open top wall of said outer cylinder (23) screwed to an upper-adapter (80a); said base (22) of said cylinder assembly (20) is extended downward with said drain tube (26) connected to a lower adapter (80b) in connection with said drainage pipe (60) for draining out water; inner and outer surfaces of said upper and lower adapters (80a, 80b) are provided and formed with different numbers of threads (81a, 81b).
9. The odorless drain assembly of claim 8 wherein said upper and lower adapters (80a, 80b) are extended horizontally with a rigid outer edge shaped in hexagonal shape and circular shape respectively to form clasp portions (82) to facilitate rotations of said upper and lower adapters (80a, 80b) manually.
10. The odorless drain assembly of claim 8 wherein said lower adapter (80b) consists of an outer cylinder (83) with an open bottom wall, and an inner cylinder (84); said inner cylinder (84) is connected with said outer cylinder (83) integrally by a common top (85); inner and outer surfaces of said inner and outer cylinders (83, 84) are provided and formed with different numbers of threads (81a, 81b).
11. The odorless drain assembly of claim 8 wherein a bottom end of the inner threads (27) is formed with an annular groove (28), a sealing ring (90) is * led into the annular groove (28) to prevent flowing water from leaking out.
Type: Application
Filed: Jun 11, 2008
Publication Date: Dec 17, 2009
Applicants: , ,
Inventor: Paul Gan (Anaheim, CA)
Application Number: 12/155,849
International Classification: E03C 1/12 (20060101);