IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
UP-0599905
(2005-04-14)
|
등록번호 |
US-7814926
(2010-11-08)
|
우선권정보 |
DE-10 2004 018 504(2004-04-14); DE-20 2004 013 914 U(2004-09-03) |
국제출원번호 |
PCT/EP2005/003965
(2005-04-14)
|
§371/§102 date |
20070308
(20070308)
|
국제공개번호 |
WO05/099542
(2005-10-27)
|
발명자
/ 주소 |
- Hoffmeier, Dieter
- Wesselmeier, Reinhard
- Wagner, Utz
|
출원인 / 주소 |
|
대리인 / 주소 |
|
인용정보 |
피인용 횟수 :
5 인용 특허 :
3 |
초록
▼
A liquid aspirator, in particular for liquids containing solids such as sludge, has a receptacle into which liquid can be sucked in by an aspirator motor through a vacuum connector and from which the liquid can drain through a drainage. The receptacle has at least two separate receiving chambers and
A liquid aspirator, in particular for liquids containing solids such as sludge, has a receptacle into which liquid can be sucked in by an aspirator motor through a vacuum connector and from which the liquid can drain through a drainage. The receptacle has at least two separate receiving chambers and a control that controls that the receiving chambers are filled alternatingly with liquid while the receiving chambers that are not being filled are drained. The receiving chambers are sealable relative to the vacuum side of the aspirator motor by main valves that are preferably mechanically connected.
대표청구항
▼
What is claimed is: 1. A liquid aspirator, in particular for liquids containing solids, the liquid aspirator comprising: a housing comprising a receptacle and a lid; at least one aspirator motor arranged in the housing; the receptacle enclosing at least two receiving chambers for liquid, each of th
What is claimed is: 1. A liquid aspirator, in particular for liquids containing solids, the liquid aspirator comprising: a housing comprising a receptacle and a lid; at least one aspirator motor arranged in the housing; the receptacle enclosing at least two receiving chambers for liquid, each of the at least two receiving chambers having an air aspiration opening that is connected to a vacuum side of the at least one aspirator motor and is provided with a main valve; a vacuum connector connected to the receptacle, wherein liquid is sucked into the receptacle through the vacuum connector with the at least one aspirator motor, wherein a section of the vacuum connector arranged inside the receptacle has for each one of the at least two receiving chambers a separate closeable opening so that the vacuum connector communicates separately with each one of the at least two receiving chambers; a drainage connected to the receptacle through which drainage liquid contained in the receptacle drains from the receptacle; a control that acts on the main valves so as to alternatingly open and close the air aspiration openings so that the at least two receiving chambers are alternatingly filled with liquid through the closeable openings of the vacuum connector, respectively, and so that one of the at least two receiving chambers currently not being filled is drained. 2. The liquid aspirator according to claim 1, wherein the at least two receiving chambers each have one of the at least one aspirator motor alternatingly switched on and off by the control. 3. The liquid aspirator according to claim 1, wherein the at least one aspirator motor is actuated by the control for alternating aspiration of liquid into the at least two receiving chambers. 4. The liquid aspirator according to claim 1, wherein the control is a mechanical control. 5. The liquid aspirator according to claim 1, wherein the at least two receiving chambers each are sealed relative to the vacuum side of the at least one aspirator motor by a main valve. 6. The liquid aspirator according to claim 5, wherein the main valves are coupled to one another so as to open and close alternatingly. 7. The liquid aspirator according to claim 6, wherein the main valves are mechanically connected to one another. 8. The liquid aspirator according to claim 7, wherein the main valves are coupled by a linkage. 9. The liquid aspirator according to claim 7, comprising a switching flap that pivots for connecting the vacuum side of the at least one aspirator motor alternatingly to one of the at least two receiving chambers. 10. The liquid aspirator according to claim 9, wherein the switching flap is connected to a linkage comprising two switching levers and forms the main valves. 11. The liquid aspirator according to claim 5, wherein the at least two receiving chambers each have a float secured in a guide. 12. The liquid aspirator according to claim 11, wherein the float is arranged underneath the main valve, respectively, so that a rise of liquid in the at least two receiving chambers past a predetermined level forces the float against the main valve and closes the main valve, respectively. 13. The liquid aspirator according to claim 12, wherein the guide has a lower area with penetrations and an upper area that is closed circumferentially, wherein the guide surrounds in the upper area sealingly the float when lifted. 14. The liquid aspirator according to claim 11, wherein the at least two receiving chambers each are sealingly connected by an auxiliary valve to an exhaust side of the at least one aspirator motor. 15. The liquid aspirator according to claim 14, wherein a connection of the exhaust side of the at least one aspirator motor to the at least two receiving chambers is realized by the guide, respectively. 16. The liquid aspirator according to claim 15, wherein a connecting channel extends from a side of the auxiliary valve facing away from the exhaust side of the aspirator motor to the float neighboring the auxiliary valve, respectively. 17. The liquid aspirator according to claim 16, wherein the main valve and the auxiliary valve of each one of the at least two receiving chambers are coupled to open and close alternatingly. 18. The liquid aspirator according to claim 17, wherein the main valves and the auxiliary valves are coupled mechanically. 19. The liquid aspirator according to claim 18, wherein the main valves are coupled by a first rocker. 20. The liquid aspirator according to claim 19, wherein the auxiliary valves are coupled by a second rocker. 21. The liquid aspirator according to claim 20, wherein the first and second rockers are rigidly connected to one another. 22. The liquid aspirator according to claim 1, wherein the at least two receiving chambers have essentially a cylindrical shape. 23. The liquid aspirator according to claim 1, wherein the at least two receiving chambers have identical volume. 24. The liquid aspirator according to claim 1, wherein the at least two receiving chambers are arranged one inside the other. 25. The liquid aspirator according to claim 1, wherein the at least two receiving chambers have a bottom side that is closable by a common vacuum flap supported pivotably between two stops such that, when the vacuum flap rests against one of the two stops, the vacuum flap closes off a first one of the at least two receiving chambers and opens a second one of the at least two receiving chambers toward the drainage. 26. The liquid aspirator according to claim 1, wherein the receptacle is pivotably supported. 27. The liquid aspirator according to claim 26, wherein the receptacle is supported so as to swing about a substantially horizontal axle. 28. The liquid aspirator according to claim 27, wherein the at least two receiving chambers each have an air aspiration opening and the air aspiration openings are alternatingly connected to a vacuum side of the at least one aspirator motor by pivoting the receptacle. 29. The liquid aspirator according to claim 28, wherein the air aspiration openings are arranged in a wall area of the receptacle which wall area is curved with a substantially constant radius about a pivot axis of the receptacle. 30. The liquid aspirator according to claim 26, wherein the receptacle is divided into the at least two receiving chambers such that as liquid rises in a first one of the at least two receiving chambers, a center of gravity of the receptacle shifts, causing the receptacle to automatically pivot into a position that releases a second one of the at least two receiving chambers for filling with liquid. 31. The liquid aspirator according to claim 1, wherein the receptacle in cross-section has substantially a circular shape that is divided by a partition into two of the at least two receiving chambers and said two of the at least two receiving chambers each have a substantially semi-circular cross-section. 32. The liquid aspirator according to claim 31, wherein the two receiving chambers each have an air aspiration opening and the air aspiration openings are alternatingly connected to a vacuum side of the at least one aspirator motor, wherein the air aspiration openings are arranged adjacent one another on opposite sides of the partition and have closable drainage openings positioned opposite one another relative to the partition.
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