[특허]Vacuum tank assembly

Dometic Sanitation Corporation

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Vacuum tank assembly

특허상세정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	B67C-003/16 B67C-003/02
미국특허분류(USC)	137/205; 137/565.17; 137/590; 004/431; 417/044.2
출원번호	US-0255413 (2005-10-20)
등록번호	US-7373946 (2008-05-20)
발명자 / 주소	Sigler,James A. Edmondson,Lorna K. Miko,Steven L.
출원인 / 주소	Dometic Sanitation Corporation
대리인 / 주소	Pearne & Gordon LLP
인용정보	피인용 횟수 : 1 인용 특허 : 20

초록

A vacuum tank assembly is provided for use on an RV or a boat and includes a two-piece vacuum tank. The two-piece vacuum tank includes a body and a removable top with a gasket located between the body and removable top. A dip tube is integrated into the removable top, thus, forming an opening in the removable top and thereby reducing maintenance problems associated with mechanically attached dip tube assemblies. A vacuum pump is provided to pump the waste out of the vacuum tank into a holding tank.

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What is claimed is: 1. A vacuum tank assembly comprising: a body having a plurality of sides and a bottom; a removable top operatively attached to the body; a dip tube integrated into the removable top thereby forming a first opening in the removable top, the dip tube further including a bottom and an opening at the bottom and extending from the removable top in a downward direction toward the bottom of the body thereby forming a gap between the bottom of the dip tube and the bottom of the body; a housing having a pump inlet port and a pump outlet port, each of the pump inlet and pump outlet ports being formed with the housing, the housing being operatively attached to the removable top about the first opening, the housing being located generally above the first opening such that the position of the first opening is generally centered below the housing; an inlet adapter assembly having at least one check valve and an o-ring; and, a motor-driven vacuum pump mounted to the housing and operatively attached to the first opening with the inlet adapter assembly via the pump inlet port, wherein the pump inlet port extends a distance into the dip tube and has a generally tubular geometry with a central axis extending along its longitudinal length that is coaxial with a central axis of the first opening, wherein the pump inlet port is operatively and sealingly connected to the dip tube by the o-ring of the inlet adapter assembly; and wherein the pump outlet port extends in a direction substantially perpendicular to the pump inlet port. 2. The vacuum tank assembly of claim 1, wherein the pump inlet port extends in a downward direction from the housing and wherein rotation of the housing to position the pump outlet port is independent of the pump inlet port. 3. The vacuum tank assembly of claim 1, further comprising an outlet adapter assembly connecting the pump outlet port to a waste-holding tank, wherein the inlet adapter assembly and the outlet adapter assembly are interchangeable. 4. The vacuum tank assembly of claim 1, wherein the housing further comprises a mounting flange having slots to allow rotation of the housing. 5. The vacuum tanks assembly of claim 1, wherein the at least one check valve is a duck bill check valve having a diameter of approximately 50.8 millimeters (approximately 2 inches) to provide increased throughput. 6. The vacuum tank assembly of claim 1 further comprising: second and third openings located in the removable top; a vacuum switch operatively connected to the second opening; and, a waste inlet means operatively connected to the third opening. 7. The vacuum tank assembly of claim 1, wherein each side includes at least one surface manifestation to provide strength to the body and wherein the exterior of the vacuum tank assembly has a generally rectangular prism configuration and has no continuous flat surface greater than 516.13 square centimeters (80 square inches). 8. The vacuum tank assembly of claim 1, wherein the bottom of the body is contoured in a downward direction from each side toward the dip tube. 9. The vacuum tank assembly of claim 1, wherein the dip tube further includes at least one hole to allow waste to drain into the vacuum tank when replacing the check valve. 10. The vacuum tank assembly of claim 1 further comprising a gasket located between the removable top and the body. 11. A vacuum tank assembly comprising: a body having a plurality of sides and a bottom a removable top operatively attached to the body and having at least one opening having a central axis; a dip tube integrated into the removable top and forming the at least one opening, the dip tube having a generally tubular geometry with a central axis extending along its longitudinal length that is generally coaxial with the central axis of the at least one opening, and further including a bottom and an opening at the bottom; an inlet adapter assembly having at least one check valve and an o-ring; and, a vacuum pump operatively attached to the dip tube, the vacuum pump including a housing having a flange with a plurality of slots for rotatably attaching the housing to the removable top about the at least one opening, the housing being located generally above the at least one opening such that the position of the at least one opening is generally centered below the housing, the housing further including a pump inlet port and a pump outlet port, wherein the pump inlet port extends in a downward direction generally towards the at least one opening and is operatively and sealingly connected to the dip tube by the o-ring of the inlet adapter assembly, the pump inlet port extending a distance into the dip tube and having a generally tubular geometry with a central axis extending along its longitudinal length that is coaxial with the central axis of the at least one opening, and wherein the pump outlet port extends in a direction substantially perpendicular to the pump inlet port, the pump inlet port and the pump outlet port being independent of each other such that rotation of the housing causes a change of orientation of the pump outlet port relative to the dip tube while maintaining the central axis of the pump inlet port generally coaxial with the central axle axes of the dip tube and the at least one opening. 12. The vacuum tank assembly of claim 11 further comprising second and third openings located in the removable top, wherein the dip tube extends in a downward direction from the removable top toward the bottom of the body thereby forming a gap between the bottom of the dip tube and the bottom of the body. 13. The vacuum tank assembly of claim 11, wherein the bottom of the body is contoured in a downward direction from each side toward the dip tube. 14. The vacuum tank assembly of claim 11, wherein each side includes at least one surface manifestation to provide strength to the body and wherein the exterior of the vacuum tank assembly has a generally rectangular prism configuration. 15. The vacuum tank assembly of claim 11, wherein the dip tube further includes at least one hole to allow waste to drain into the vacuum tank when replacing the check valve. 16. The vacuum tank assembly of claim 11, wherein the inlet adapter assembly further includes at least two check valves and an inlet adapter tube, at least one of the check valves being located vertically above the inlet adapter tube and at least one of the check valves being located vertically below the inlet adapter tube. 17. The vacuum tank assembly of claim 11, wherein vacuum pump is a motor-driven vacuum pump. 18. The vacuum tank assembly of claim 12 further comprising: a vacuum switch including a cover and operatively connected to the second opening, wherein the cover has a snap type connection; and, a waste inlet conduit rotatably connected to the third opening. 19. The vacuum tank assembly of claim 18, wherein the waste inlet conduit is in the form of an elbow and extends over the pump outlet port. 20. A vacuum tank assembly comprising: a body having a plurality of sides and a bottom a removable top operatively attached to the body and having at least a first opening and a second opening; a dip tube integrated into the removable top and forming the first opening, the dip tube further including a bottom and an opening at the bottom; a waste inlet means operatively connected to the second opening; a vacuum pump operatively attached to the dip tube, the vacuum pump including a housing having a flange with a plurality of slots for rotatably attaching the housing to the removable top about the first opening, the housing further including a pump inlet port and a pump outlet port, each of the pump inlet and pump outlet ports being formed with the housing, and wherein the housing is located generally above the first opening such that the position of the first opening is generally centered below the housing; an inlet adapter assembly having at least one check valve and an o-ring sealingly attaching the pump inlet port to the dip tube via the first opening; and an outlet adapter assembly having at least one check valve and an o-ring adapted to sealingly attach the pump outlet port to a holding tank; wherein the pump inlet port extends in a downward direction generally towards the first opening and a distance into the dip tube, and is operatively and sealingly connected to the dip tube by the o-ring of the inlet adapter assembly, the pump outlet port extending in a direction at an angle to the pump inlet port, the pump inlet port and the pump outlet port being independent of each other such that rotation of the housing causes a change of orientation of the pump outlet port relative to the dip tube without changing a spatial position of the pump inlet port relative to the dip tube. 21. The vacuum tank assembly of claim 20, wherein the dip tube has a generally tubular geometry with a central axis extending along its longitudinal length and the pump inlet port has a generally tubular geometry with a central axis extending along its longitudinal length, rotation of the housing causing a change of orientation of the pump outlet port relative to the dip tube while maintaining the central axis of the of the pump inlet port generally coaxial with the central axis of the dip tube. 22. The vacuum tank assembly of claim 20, wherein the dip tube further includes at least one hole extending therethrough to allow waste to drain into the vacuum tank when replacing the at least one check valve. 23. The vacuum tank assembly of claim 20, wherein the pump outlet port extends in a direction substantially perpendicular to the pump inlet port.

이 특허에 인용된 특허 (20)

이 특허를 인용한 특허 피인용횟수: 1

Villagomez, Manuel; Meza, Humberto V.; Phillips, David L.. Diaphragm pump using duckbill and other types of valves. USP2014048690554.

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Vacuum tank assembly

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Vacuum tank assembly

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이 특허에 인용된 특허 (20)

이 특허를 인용한 특허 피인용횟수: 1

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