Odor trap device

Patent metadata

Field	Value
Publication number	US-9951503-B2
Application number	US-201414912660-A
Country	US
Kind code	B2
Filing date	Aug 20, 2014
Priority date	Aug 21, 2013
Publication date	Apr 24, 2018
Grant date	Apr 24, 2018

Abstract

An odor-trap device ( 1 ) for in particular flushing-water-free sanitary devices, for example urinals, comprises an outflow element ( 2 ) with a sealing wall ( 3 ), and also comprises a sealing membrane ( 4 ), which is in sealing contact with the sealing wall ( 3 ) in a closure position and, in the presence of a liquid, such as urine, is pushed away from the sealing wall ( 3 ) from the closure position into an open position, as a result of which a gap ( 19 ) is formed between the sealing membrane ( 4 ) and sealing wall ( 3 ), it being possible for the liquid to be led away through said gap, and further comprises a mounting element ( 5 ) for mounting the sealing membrane ( 4 ) in relation to the sealing wall ( 3 ). The odor-trap device ( 1 ) is characterized in that the seating membrane ( 4 ) has a seating surface ( 6 ) which runs substantially parallel to the sealing wall ( 3 ), wherein the sealing surface ( 6 ) butts against the sealing wall ( 3 ) substantially with surface-area contact, or wherein the sealing surface ( 6 ) is spaced apart from the sealing wall ( 3 ) such that the liquid film which is present, at least in part, between the sealing wall ( 3 ) and the sealing surface ( 6 ) provides a force of adhesion between the sealing wall ( 3 ) and seating surface ( 6 ).

First claim

The invention claimed is:

1. An odor-trap device for sanitary devices, such as for example urinals, comprising
a discharge element having a sealing wall,
a sealing membrane which is in sealed contact with the sealing wall in a closed position and, in the presence of a liquid such as urine, is forced away from the sealing wall from the closed position into an open position, whereby a gap is formed between the sealing membrane and the sealing wall, the liquid being able to be discharged through said gap,
and a bearing element for bearing the sealing membrane relative to the sealing wall, wherein the sealing membrane has a sealing surface which extends substantially parallel to the sealing wall,
wherein the sealing surface bears substantially flush against the sealing wall or wherein the sealing surface is spaced apart from the sealing wall such that the film of liquid which is at least partially present between the sealing wall and the sealing surface provides an adhesive force between the sealing wall and the sealing surface;
wherein the sealing membrane, viewed in the discharge direction, has an retention portion extending in a conical or barrel-shaped manner upstream of the sealing surface, wherein the diameter of the retention portion reduces as the distance from the sealing surface increases;
wherein the bearing element has a substantially flat bearing plate and bearing webs extending from the bearing plate, which bearing plate being centrally mounted in the discharge element by said bearing webs;
wherein the retention portion of the sealing membrane is supported on the bearing webs, and
wherein the sealing membrane comprises a drainage portion which adjoins the sealing surface which drainage portion comprises a plurality of drainage tips which extend away from the sealing surface in a direction of a central axis around which the sealing membrane extends.

2. The odor-trap device as claimed in claim 1 , wherein the sealing wall and the sealing surface are configured to be cylindrical and/or the sealing surface and the sealing wall are configured to be complementary to one another.

3. The odor-trap device as claimed in claim 1 , wherein the sealing membrane is configured as a hollow cylinder, the lateral surface thereof providing the sealing surface, wherein on a front face the hollow cylinder is configured with a terminal portion which closes the hollow cylinder on the front face, wherein the terminal portion is provided entirely by the sealing membrane or by further elements, such as for example by the bearing element.

4. The odor-trap device as claimed in claim 1 , wherein the sealing surface is configured with a diameter circulating around a central axis and, viewed in the direction of the central axis, has a length which is greater than 10% of said diameter or greater than 20% of said diameter.

5. The odor-trap device as claimed in claim 1 , wherein the surface of the sealing surface and/or the sealing wall is configured to be flush and/or the surface of the sealing surface and/or the sealing wall are provided at least partially with a surface structure, such as grooves, pimples, ribs or a roughened surface.

6. The odor-trap device as claimed in claim 1 , wherein the sealing membrane comprises a bearing portion, the sealing membrane being connected thereby to the bearing element, wherein the bearing portion is located upstream of the sealing surface, viewed in the discharge direction.

7. The odor-trap device as claimed in claim 1 , wherein the discharge element, viewed in the discharge direction, has an inlet region upstream of the sealing wall, wherein the inlet region has a larger diameter than the sealing wall.

8. The odor-trap device as claimed in claim 1 , wherein the retention portion is located in the inlet region.

9. The odor-trap device as claimed in claim 1 , wherein the bearing plate on the lower face has a receiving portion for receiving the sealing membrane, wherein the sealing membrane is connected via its bearing portion to the receiving portion.

10. The odor-trap device as claimed in claim 1 , wherein the retention portion of the sealing membrane is supported on the bearing webs.

11. The odor-trap device as claimed in claim 1 , wherein the discharge element is a tubular piece, wherein the tubular piece, or the tubular piece together with the sealing membrane and the bearing element, is able to be inserted into a discharge device.

12. The odor-trap device as claimed in claim 1 , wherein the sealing membrane is made of silicone and/or wherein the sealing membrane has a wall thickness of 0.1 to 0.4 mm.

13. The odor-trap device as claimed in claim 1 , wherein the sealing wall and the sealing surface are configured to be cylindrical and/or the sealing surface and the sealing wall are configured to be complementary to one another and to have substantially the same diameter.

14. A discharge device comprising a discharge pipe and an odor-trap device as claimed in claim 1 , wherein the discharge pipe comprises the discharge element or wherein the discharge element is configured to be able to be inserted into the discharge pipe.

15. The discharge device as claimed in claim 14 , wherein the discharge pipe is configured to be tapered and/or curved downstream of the odor-trap device, viewed in the direction of flow.

16. A sanitary device or a urinal, comprising a discharge device as claimed in claim 14 .

Assignees

• Geberit Int Ag

Inventors

• Kosarnig Rolf

Classifications

• Y10T137/784

  Integral resilient member forms plural valves · CPC title

• E03C1/288

  having non-return valves against return of waste water (E03C1/286 takes precedence) · CPC title

• E03C1/28

  Odour seals · CPC title

• E03F5/042

  Arrangements of means against overflow of water, backing-up from the drain · CPC title

• E03F5/0405

  with an odour seal · CPC title