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公开(公告)号：US4819279A
公开(公告)日：1989-04-11
申请号：US101788
申请日：1987-09-28
IPC分类号： B61D35/00 , B64D11/02 , E03D5/00 , E03D9/06 , E03D11/00 , E03D11/10 , E03D11/13 , E03F1/00 , F03D1/00
CPC分类号： E03F1/006
摘要： A vacuum toilet system for a vehicle (such as a boat) has numerous advantages. A single pump with valves on opposite sides of it may be used as both the vacuum source and for discharging sewage from a holding tank. Two sets of multiple heads may be selectively connected to two pumps for emergency purposes. The vacuum toilet includes a sealing element with an integral movable valve engaging element including polytetrylflouroethylene and synthetic rubber, and at the same durometer (55-65). The initial passageway provided by movement of the valve with respect to the seal is disposed directly above the center line of an orifice. An anti-siphon valve assembly has a simple construction of a housing with parallel legs and anti-siphon air passage in alignment with one of the legs. A spray nozzle extends from the other legs of the anti-siphon valve assembly. The toilet funnel/orifice is universally connected to conduits. The vacuum tank is blow molded of plastic, has universal ports including one continuous from the tank walls so that no accumulation takes place in the tank. Longitudinal ribs along the tank provide for easy connection to a support. A vacuum sensor is mounted to one of the vacuum tank ports with fasteners disposed exteriorly of the tank, and without the need for an O-ring. The pump comprises a rolling diaphragm pump in a housing with a sump, and the stem from the pump is plastic with pegs that are staked or ultrasonically welded to the movable pump element. A powdered metal crank arm connects the pump stem to a drive motor, the crank arm being the fail-safe part of the pump.
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公开(公告)号：US5345618A
公开(公告)日：1994-09-13
申请号：US762344
申请日：1991-09-19
CPC分类号： E03F1/006
摘要： A vacuum toilet system for a vehicle (such as a boat) has numerous advantages. A single pump with valves on opposite sides of it may be used as both the vacuum source and for discharging sewage from a holding tank. Two sets of multiple heads may be selectively connected to two pumps for emergency purposes. The vacuum toilet includes a sealing element with an integral movable valve engaging element including polytetrylflouroethylene and synthetic rubber, and at the same durometer (55-65). The initial passageway provided by movement of the valve with respect to the seal is disposed directly above the center line of an orifice. An an anti-siphon valve assembly has a simple construction of a housing with parallel legs and anti-siphon air passage in alignment with one of the legs. A spray nozzle extends from the other legs of the anti-siphon valve assembly. The toilet funnel/orifice is universally connected to conduits. The vacuum tank is blow molded of plastic, has universal ports including one continuous from the tank walls so that no accumulation takes place in the tank. Longitudinal ribs along the tank provide for easy connection to a support. A vacuum sensor is mounted to one of the vacuum tank ports with fasteners disposed exteriorly of the tank, and without the need for an O-ring.
摘要翻译： 用于车辆（例如船）的真空马桶系统具有许多优点。 在其相对侧上具有阀的单个泵可用作真空源并用于从储存罐排放污水。 两组多个头可以选择性地连接到两个泵用于紧急目的。 真空马桶包括具有包括聚四氟乙烯和合成橡胶的整体可动阀接合元件的密封元件，并且在相同的硬度计（55-65）处。 通过阀门相对于密封件的运动提供的初始通道设置在孔口的中心线的正上方。 一个防虹吸阀组件具有简单的结构，其具有平行腿部和与其中一个腿对准的防虹吸空气通道的壳体。 喷嘴从防虹吸阀组件的另一个支腿延伸出来。 马桶漏斗/孔口通常连接到管道。 真空罐由塑料吹塑成型，具有通孔，包括一个与罐壁连续的通孔，使得罐中不会积聚。 沿着坦克的纵向肋条可方便地连接到支架上。 真空传感器安装在一个真空罐端口上，紧固件设置在罐外部，无需O形环。
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公开(公告)号：US5079950A
公开(公告)日：1992-01-14
申请号：US517679
申请日：1990-05-03
CPC分类号： G01F23/00 , G01F23/30 , G01F23/74 , Y10S73/05 , Y10T29/49105
摘要： A level indicating assembly for use in a tank mounted in a vehicle, such as an RV or boat, includes a fitting body for mounting the assembly in the top of the tank, and probes extending through the body into the tank. At least one of the probes has a hollow probe shaft which is of a flexible material such as flexible pvc. One of the probes provides an "empty" indication for the tank, while the other probes provide a "full" indication, and a mid-level indication. A socket or like element with a knock-out plug optionally provides a vent in the fitting body. During installation the position of the probe shafts with respect to the fitting body are adjusted, and any unneeded portion of the probe shaft above the shaft fitting is cut off.
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公开(公告)号：US4430251A
公开(公告)日：1984-02-07
申请号：US307319
申请日：1981-09-29
CPC分类号： F02M25/0228 , B01F3/0807 , B01F5/0416 , B01F5/06 , B01J13/0073 , C06B21/00 , C10L1/328 , F02M25/0225 , F23K5/12 , B01F2215/0006 , B01F2215/0088 , B01F2215/0431 , B01F2215/045 , B01F2215/0468 , B01F5/0413 , Y02T10/121 , Y10S261/56
摘要： An apparatus and method for the emulsification of fluids. Mixing of the fluids may occur before the fluids enter the apparatus, or in the apparatus. Extremely low pressure is created and maintained in an apparatus chamber by accelerating the flow velocity of at least one fluid as flow occurs from a larger to a smaller diameter passageway. Vapors of the fluids to be emulsified mix in said low pressure passageway, which may be a venturi tube. When the mixed vapors flow from the smaller diameter passageway to a second larger diameter outlet passageway, deceleration results in a pressure increase which causes the mixed vapors to collapse into the emulsified products. A single emulsification in the apparatus produces emulsified particles with diameters in the range of 0.01 to 2 microns. The apparatus is capable of homogenizing milk, emulsifying fuel and water, emulsifying solutions with immiscible fluids, and producing other regular or thixotropic emulsions.
摘要翻译： 用于乳化乳液的装置和方法。 流体的混合可以在流体进入设备之前或在设备中进行。 通过从较大直径的较小直径的通道流出，加速至少一种流体的流速，从而产生并维持极低的压力。 要乳化的流体的蒸气混合在所述低压通道中，其可以是文丘里管。 当混合蒸汽从较小直径的通道流向第二较大直径的出口通道时，减速会导致压力增加，这导致混合的蒸气塌陷成乳化产物。 设备中的单一乳化产生直径在0.01至2微米范围内的乳化颗粒。 该设备能够均化牛奶，乳化燃料和水，乳化溶液与不混溶的流体，并产生其他规则或触变性乳剂。
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公开(公告)号：US5947146A
公开(公告)日：1999-09-07
申请号：US380796
申请日：1995-01-30
CPC分类号： E03D5/00 , B60R15/04 , B63B29/14 , B63B29/16 , E03F1/006 , Y10T137/3109 , Y10T137/788 , Y10T137/7882 , Y10T137/7885 , Y10T137/7888
摘要： A vacuum tank assembly has a low volume configuration so that it can be used in boats and recreational vehicles where space is at a premium. A stack of components, with a waste tank at the bottom, then a vacuum tank with directly connected vacuum pump, and one or more fresh water tanks, is located remote from a vacuum toilet, with a discharge from the toilet (below a vacuum-tight ball valve) connected to the vacuum tank, which is in turn connected to the vacuum pump, in turn connected to the waste tank. A submersible centrifugal pump may be provided mounted to a cap of the water tank, with an anti-siphon device associated with it. The vacuum tank is of high density polypropylene having flat walls, with no continuous flat surface more than 80 square inches. Lipless duckbill check valves are provided on opposite sides of the vacuum pump, the valves of elastomeric material having a ratio of the wall thickness to thickness of the sealing edges of about 1:1. The waste tank may have a dip tube with a dog leg portion having a large cross-sectional are oval bottom opening to minimize the possibility of clogging.
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公开(公告)号：US5408704A
公开(公告)日：1995-04-25
申请号：US123846
申请日：1993-09-09
CPC分类号： E03D5/00 , B60R15/04 , B63B29/14 , B63B29/16 , E03F1/006 , Y10T137/3109 , Y10T137/788 , Y10T137/7882 , Y10T137/7885 , Y10T137/7888
摘要： A vacuum tank assembly has a low volume configuration so that it can be used in boats and recreational vehicles where space is at a premium. A stack of components, with a waste tank at the bottom, then a vacuum tank with directly connected vacuum pump, and one or more fresh water tanks, is located remote from a vacuum toilet, with a discharge from the toilet (below a vacuum-tight ball valve) connected to the vacuum tank, which is in turn connected to the vacuum pump, in turn connected to the waste tank. A submersible centrifugal pump may be provided mounted to a cap of the water tank, with an anti-siphon device associated with it. The vacuum tank is of high density polypropylene having flat walls, with no continuous flat surface more than 80 square inches. Lipless duckbill check valves are provided on opposite sides of the vacuum pump, the valves of elastomeric material having a ratio of the wall thickness to thickness of the sealing edges of about 1:1. The waste tank may have a dip tube with a dog leg portion having a large cross-sectional are oval bottom opening to minimize the possibility of clogging.
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