Did You Know...
...that to encourage use of his new invention, the shopping cart, market owner Sylvan Goldman hired fake shoppers to push the carts around his store in Oklahoma City? Seems his customers were reluctant to give up their hand-carried baskets.
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| Number | Title | Issue Date |
| 7690053 | Vacuum toilet assembly Vacuum toilet assemblies are detailed. These assemblies are designed to reduce both operational noise and water usage of the toilets while continuing to promote effective disposal of waste. They also require less air for operation than do conventional vacuum toilets... | 04/06/2010 |
| 7331069 | Water-saving flush toilet A water-saving flush toilet is disclosed. A discharge seal valve is arranged at a sewage discharge port, a discharge seal valve together with a valve cover are arranged at a valve seat. A water tap handle at the lower of the bowl is provided with a lever, a cord is ... | 02/19/2008 |
| 7245561 | Water feature The invention provides a water feature comprising a vessel containing a volume of water and means for imparting rotational motion thereto, wherein means are also provided for varying the height of the volume of water in the vessel. The invention also provides a meth... | 07/17/2007 |
| 7118677 | Method and apparatus for processing and re-using of gray water for flushing toilets In order to use so-called gray water for the flushing of toilets, for example in a conveyance such as a passenger aircraft, the gray water is passed through at least one filter, preferably through a coarse filter followed by a fine filter, into a treatment tank wher... | 10/10/2006 |
| 7055183 | Method and apparatus for cleaning and disinfecting a toilet system in a transport vehicle such as a passenger aircraft Water, preferably fresh potable water, is electrochemically, e.g. electrolytically, treated to achieve disinfectant properties. The electrochemically treated water is sprayed onto the toilet seat and directed into the toilet bowl for each flush cycle of an aircraft ... | 06/06/2006 |
| 7005077 | Shipboard human waste treatment for removing solids A method and system for separating human waste solids from liquid for a shipboard toilet system that allows for the separation of solid waste, compaction of the solid waste and storage of solid waste. Wastes are deposited into a shipboard toilet system that uses vac... | 02/28/2006 |
| 6977005 | Waterless vacuum toilet system for aircraft A waterless vacuum toilet system for an aircraft includes a toilet bowl connected via a suction valve and a waste collection pipe to a waste collection tank. Waste-contacting surfaces that come into contact with urine and fecal waste are coated with an adhesion-inhi... | 12/20/2005 |
| 6732386 | Rinse fluid valve for a vacuum toilet A rinse fluid valve for use in a vacuum toilet system is disclosed. The vacuum toilet system includes a waste receptacle with a rinse fluid dispenser associated therewith and a source of rinse fluid. The rinse fluid valve has a housing with an inlet in fluid communi... | 05/11/2004 |
| 6704947 | Discharge valve for a vacuum toilet A discharge valve is disclosed for use in a vacuum toilet system having a waste receptacle defining an outlet and a sewer line placeable under partial vacuum. The discharge valve comprises a housing defining an inlet and an outlet, and a rotatable discharge valve me... | 03/16/2004 |
| 6536055 | Modular vacuum toilet with line replaceable units A modular vacuum toilet, and a method of servicing such a toilet, are disclosed. The toilet is used with a vacuum toilet system having a sewer line placeable under partial vacuum pressure and a source of rinse fluid. The modular vacuum toilet comprises a ... | 03/25/2003 |
| 6536054 | Vacuum toilet bowl assembly having removable bowl A vacuum bowl assembly for use in a vacuum toilet positioned on a support surface and having a discharge valve. The vacuum bowl assembly comprises a frame having a bottom member adapted to engage the support surface, and a top member defining a shoulder. ... | 03/25/2003 |
| 6470505 | Water efficient toilet A water efficient toilet includes a self pressurized tank connected to a water supply through conduits and includes a valve operatively connected to the conduits. The toilet assembly has a bowl with inner walls, the bowl having a lower reservoir connected... | 10/29/2002 |
| 6467101 | Toilet flushing and cleaning device A toilet flushing and cleaning device includes a reservoir with a cylinder and a mixing tube disposed therein. The cylinder communicates with a water source. A plunger is slidably disposed in the cylinder. A plurality of spray nozzles communicate with the... | 10/22/2002 |
| 6370709 | Discharge valve having a disk with a flushing aperture and an air intake aperture for a vacuum toilet A discharge valve is disclosed for use in a vacuum toilet system having a waste receptacle defining an outlet and a sewer line placeable under partial vacuum. The discharge valve comprises a housing defining an inlet and an outlet and a rotatable discharg... | 04/16/2002 |
| 6353942 | Modular vacuum toilet with line replaceable units A modular vacuum toilet, and a method of servicing such a toilet, are disclosed. The toilet is used with a vacuum toilet system having a sewer line placeable under partial vacuum pressure and a source of rinse fluid. The modular vacuum toilet comprises a ... | 03/12/2002 |
| 6349424 | Rinse fluid valve for a vacuum toilet A rinse fluid valve for use in a vacuum toilet system is disclosed. The vacuum toilet system includes a waste receptacle with a rinse fluid dispenser associated therewith and a source of rinse fluid. The rinse fluid valve has a housing with an inlet in fl... | 02/26/2002 |
| 6349425 | Valve set for a vacuum toilet An integrated valve set for use in a vacuum toilet system is disclosed. The vacuum toilet system includes a waste receptacle defining an outlet and having a rinse fluid nozzle, a source of rinse fluid, and a sewer line placeable under partial vacuum press... | 02/26/2002 |
| 6347416 | Vacuum toilet bowl assembly having a removable bowl A vacuum bowl assembly for use in a vacuum toilet positioned on a support surface and having a discharge valve. The vacuum bowl assembly comprises a frame having a bottom member adapted to engage the support surface, and a top member defining a shoulder. ... | 02/19/2002 |
| 6279176 | Low water toilet A low volume high-pressure toilet. When the user sits on the toilet seat, a hydraulic piston pressurizes the water tank, which optimally holds 1.7 liters of water. Water is released at high pressure through the toilet interior rim and a lower waterjet, fo... | 08/28/2001 |
| 6085366 | Apparatus for supplying pressurized rinse water to a toilet Apparatus for pressurizing rinse fluid to a toilet is provided comprising a reservoir for receiving gravity fed rinse fluid. The reservoir is connected to a source of pressurized air through an air inlet valve mechanically coupled to a controller. A rinse... | 07/11/2000 |
| 6006373 | System for collecting and disposing of aircraft galley waste A galley waste collection system for a passenger transport vehicle having a vacuum sewage collection system includes a basin for receiving galley waste and a normally-closed discharge valve connected between the outlet opening of the basin and the sewer p... | 12/28/1999 |
| 5983414 | Electrical control device A vacuum sewer toilet system comprises a toilet compartment, a toilet bowl installed in the toilet compartment, a vacuum sewer, at least one electrically operated device for initiating an emptying and rinsing operation of the toilet bowl, and electrical c... | 11/16/1999 |
| 5933882 | Lever-actuated flush toilet A flush toilet for a recreational vehicle has a flush mechanism including a lever that can be either depressed to cause a full flush of the toilet, or raised to rinse the bowl only. The lever operates a linkage that is designed so that, even after a parti... | 08/10/1999 |
| 5906011 | Dual foot pedal-operated flush toilet A flush toilet for a recreational vehicle has a flush mechanism including a pair of foot pedals, one for opening the bowl outlet closure of the toilet, and the other for opening the flush water valve. Depression of the first foot pedal also depresses the ... | 05/25/1999 |
| 5815852 | Toilet with internal rinse mechanism A flush toilet, for example, for use in a recreational vehicle comprises two main plastic mouldings, one of which includes the toilet bowl and the other of which forms a "shell" or outer housing in which the bowl is supported so that the bowl outlet is lo... | 10/06/1998 |
| 5657495 | trap-forming device and toilet bowl provided with such a device A trap-forming device that includes a hollow body having an upstream orifice situated in a bottom portion of the body for communicating with an upstream length of fluid evacuation pipework, and a downstream orifice situated in the bottom portion of the bo... | 08/19/1997 |
| 5495626 | Electrical control device A vacuum sewer toilet system comprises a toilet compartment, a toilet bowl installed in the toilet compartment, a vacuum sewer, at least one electrically operated device for initiating an emptying and rinsing operation of the toilet bowl, and electrical c... | 03/05/1996 |
| 5421040 | Vacuum toilet system A vacuum toilet system comprises a toilet bowl having a cover mounted for movement relative to the toilet bowl between an open position and a closed position, the cover being in at least partially sealing relation with the rim when in the closed position.... | 06/06/1995 |
| 5317763 | Apparatus for low noise flushing a vacuum toilet, especially in an aircraft The noise developed in a suction toilet system, for example in an aircraft, by the activation of a suction valve is substantially reduced by generating the required suction with the aid of two valves, one of which is a by-pass flow valve that can be arran... | 06/07/1994 |
| 5245711 | Vacuum toilet system A vacuum toilet system comprises a toilet bowl having a cover mounted for movement relative to the toilet bowl between an open position and a closed position, the cover being in at least partially sealing relation with the rim when in the closed position.... | 09/21/1993 |
| 5245710 | Flush toilet and method A toilet bowl has a discharge opening for flowing waste material into a gas-tight hopper. A waste valve is disposed between the discharge opening and the hopper for controlling the flow of waste material into the hopper. A first air valve selectively allo... | 09/21/1993 |
| 5036554 | Water saving toilet construction A water saving toilet construction includes a toilet unit which is adapted for flushing with less than approximately one gallon of water, a holding tank which is located beneath the toilet unit and a macerator discharge pump assembly which is operative fo... | 08/06/1991 |
| 5007117 | Vacuum toilet system with simultaneous rinse and discharge A vacuum toilet system comprises a waste-receiving bowl defining an interior space for receiving waste material. A sewer pipe defines an interior space that can be placed at a pressure that is lower than that in the interior space of the waste-receiving b... | 04/16/1991 |
| 4947492 | Swivel nozzle flush toilet system A lavatory system suitable for use on a commercial passenger aircraft includes a toilet bowl for receiving waste and a waste-holding tank in fluid communication with the toilet bowl for receiving waste from the toilet bowl. A flapper valve is provided in ... | 08/14/1990 |
| 4918764 | Electrically operated toilet An electrically operated toilet wherein a toilet bowl is coupled to an electrically operated water valve which selectively flows water into the toilet bowl. An electrically operated waste valve is coupled to the discharge opening of the toilet bowl for se... | 04/24/1990 |
| 4637079 | Backflow preventing attachment for toilets A toilet backflow preventing valve and toilet bowl support for mounting between a standard soil pipe mounting flange and drain horn of a standard toilet bowl supports the toilet bowl closely adjacent the floor level, receives standard toilet bolts clampin... | 01/20/1987 |
| 4595346 | Waterless urinal pumps Two flanged sleeves, closed and valved at one end, and a bonnet with two gudgeons act as a cylinder-piston mechanism for pumping. The upper sleeve is movable and spring-loaded, accepts and is filled with liquid. When the bonnet is depressed, through its g... | 06/17/1986 |
| 4376314 | Vehicular toilet A vehicular toilet comprising a toilet bowl having an upper rim defining a bowl opening and a lower outlet, a flush valve for selectively controlling the application of a vacuum to the bowl outlet for flushing the toilet, a flush ring proximate the toilet... | 03/15/1983 |
| 4306321 | Boat and caravan closet The present invention refers to a closet combined with a sewage tank (7). The closet comprises a stand enclosing the sewage tank (7) and supporting a chair (1) composed of closet bowl (3), closet seat (4) and closet cover (5). A flushing water tank (18) i... | 12/22/1981 |
| 4297751 | Sewer system A sewer system in which partial vacuum is used for transporting sewage through a sewer pipe to a collecting chamber or the like. The system comprises only a few sewage producing units, preferably only one at a time usable unit. The length of the sewer pip... | 11/03/1981 |
