Pond filter with filter bag

• US 20040060854A1
• Filed: 10/01/2002
• Published: 04/01/2004
• Est. Priority Date: 10/01/2002
• Status: Active Grant

• Current Assignee: United Pet Group Incorporated (Spectrum Brands Holdings, Inc.)
• Original Assignee: Tetra Holding US Incorporated (Spectrum Brands Holdings, Inc.)
• Inventors: Moore, Paul Anthony, Dover, Donald L.
• Granted Patent: US 6,896,798 B2
• Time in Patent Office: Days
• US Class Current: 210/169
• CPC Class Codes: A01K 63/045 Filters for aquaria

Abstract

A pump and filtration system for a pond or pool. The filtration mechanism has a collapsible bag in which dirty water is forced through it from one direction in order to clean the water while cleaning water is forced through the bag in the opposite direction in order to clean the filter bag. The filter bag is positioned in a housing and separated from the walls of the housing by a mesh or screen-type member. A tapered nozzle (water jet member) is used to increase the flow of the water entering the flotation unit. A tubular member is lowered through the housing in order to clean contaminants from the collapsible filter bag. The dirty water is directed to a flower bed or the like.

Claims

1. A water filtration apparatus comprising:

a housing;

a collapsible filter bag member positioned in said housing; and

a water jet member positioned in said housing;

wherein a flow of water supplied to said housing is directed toward said filter bag member by said water jet member for filtering out contaminants from the water.

2. The apparatus as set forth in claim 1 wherein said housing has a first section and a second section, and wherein said filter member is positioned substantially between said first and second sections.

3. The apparatus as set forth in claim 1 wherein said filter member comprises at least one foam filter member.

4. The apparatus as set forth in claim 1 wherein said water jet member has at least one nozzle member for increasing the velocity of a flow of water.

5. The apparatus as set forth in claim 1 wherein said water jet member has at least two nozzle members for increasing the velocity of a flow of water.

6. The apparatus as set forth in claim 1 wherein said housing has a first inlet for entry of water and a first outlet for egress of water.

7. The apparatus as set forth in claim 2 further comprising a fixation member for releasably securing together said first and second sections.

8. The apparatus as set forth in claim 2 wherein said filter member is positioned between said first and second sections.

9. The apparatus as set forth in claim 1 wherein said housing further comprises a second inlet for use during backflush procedures, and a second outlet for removal of contaminants flushed from said housing.

10. The apparatus as set forth in claim 9 further comprising a backflush member positioned in said second inlet.

11. The apparatus as set forth in claim 10 wherein said backflush member comprises a hollow tubular member and a spray nozzle.

12. An apparatus as set forth in claim 11 wherein said backflush member is longitudinally movable in said second inlet.

13. The apparatus as set forth in claim 1 further comprising an air inlet in said housing, said air inlet being operated by a valve member.

14. A pond filtration system comprising:

a filtration device for filtering out contaminants from pond water;

conduit means for transporting water from said pumping device to said filtration device and for returning filtered water to a pond;

said filtration device comprising a housing, a collapsible filter bag member, and a water jet member;

wherein water entering said filtration device is passed through said water jet member and directed to and through said filter bag member, said water jet member increasing the velocity of water passing through it.

15. The apparatus as set forth in claim 14 wherein said housing has a first section and a second section, and wherein said filter member is positioned substantially between said first and second sections.

16. The apparatus as set forth in claim 14 wherein said filter member comprises at least one foam filter member.

17. The apparatus as set forth in claim 14 wherein said water jet member has at least one nozzle member for increasing the velocity of a flow of water.

18. The apparatus as set forth in claim 14 wherein said water jet member has at least two nozzle members for increasing the velocity of a flow of water.

19. The apparatus as set forth in claim 14 wherein said housing has a first inlet for entry of water and a first outlet for egress of water.

20. The apparatus as set forth in claim 14 wherein said housing further comprises a second inlet for use during backflush procedures, and a second outlet for removal of contaminants flushed from said housing.

21. The apparatus as set forth in claim 20 further 2 comprising a backflush member positioned in said second inlet.

22. The apparatus as set forth in claim 21 wherein said 2 backflush member comprises a tubular member and a spray nozzle.

23. A water filtration system comprising:

a filtration device for filtering out contaminants from water;

conduit means for transporting water from said pumping device to said filtration device and for returning filtered water;

said filtration device comprising a housing, a collapsible filter bag member, and a water jet member;

wherein water entering said filtration device is passed through said water jet member and directed to and through said collapsible filter bag member, said water jet member increasing the velocity of water passing through it.

24. The apparatus as set forth in claim 23 further comprising a backflush member for cleaning said collapsible filter bag member.

25. The apparatus as set forth in claim 24 wherein said backflush member comprises a longitudinally movable tubular member with a spray nozzle.

26. A method for filtering contaminants from pond water with a filter member in a filtration device and subsequently cleaning said filter member in a backflush procedure, said method comprising the steps of:

pumping water from a pond with a pumping device to a filtration device, said filtration device having a housing, a collapsible filter bag member, a water jet member, a first water inlet member, a second water inlet member, an air inlet member, a first water outlet member, a second water outlet member, and a backflush member;

said pond water being pumped into said filtration device through said first water inlet member;

directing said pond water through said water jet member to increase the velocity of the water;

directing said pond water from said water jet member to and through said collapsible filter bag member and out said first water outlet member;

returning said filtered water from said first outlet member to said pond;

allowing air to enter said housing through said air inlet member wherein said filter bag member is collapsed;

directing cleaning water through said second water inlet member to and through said collapsed filter bag member to clean contaminants thereon; and

removing the cleaning water and contaminants from the housing through said second water outlet member.