Did You Know...
...that two musicians were responsible for the invention of color print film? Fascinated by photography, Leopold Godowsky and Leopold Mannes worked together to produce an easy-to-use, practical color film. They worked full time as music teachers and gave concerts while experimenting during their off hours in Mannes' kitchen. Their success earned them full-time, well-paying jobs at Kodak and their efforts resulted in Kodachrome film, which was introduced in 1935.
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| Number | Title | Issue Date |
| 7300575 | Portable filter system A filter system for receiving an aqueous-based fluid contaminated with particles and emulsified contaminant oil, removing the particles, and separating the emulsified contaminant oil from the aqueous-based fluid includes a filter media for receiving the aqueous-base... | 11/27/2007 |
| 7211187 | Mobile or stationary modular self-contained dehydration toilet, dehydration engine, and gray water recovery system A compact dehydration engine and method for treating human waste and gray water residual electro-coagulants that includes a heated waste dehydration chamber that has low energy consumption and low water consumption in use. The system can be employed in stationary or... | 05/01/2007 |
| 7155750 | Filtering apparatus of circulating flush toilet A filtering apparatus of a circulating flush toilet recycling drain water having used for washing the inside a toilet bowl is disposed between a water-receiving tank and a water-pumping tank of the flush toilet so as to solve problems such as clogging of a pipe and ... | 01/02/2007 |
| 7111332 | Waterless urinals which can be flushed A waterless urinal that can be flushed with liquid consists of a urinal with a flushing liquid and urine separator and a flushing liquid recycling system; the flushing liquid and urine separator having three flow barriers which can guide urine to down-and-up type fl... | 09/26/2006 |
| 7014778 | Device and method for treating waste product A method and device are provided for treating a waste water waste-product mixture from a toilet by coupling the toilet to a waste product mixture to a waste product holding tank, connecting the tank with a vacuum container having a stirring member for breaking up th... | 03/21/2006 |
| 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 |
| 6959723 | Oil sealant-preserving drain odor trap Improvements in retention of the oily liquid sealant (20) in a oil-sealed odor trap (10B-10M), for drain applications such as a waterless urinal or anti-evaporation floor drain, are accomplished by minimizing turbulence in the oil sealant, such ... | 11/01/2005 |
| 6523186 | Toilet water recycling system A water treatment and recycling system is provided having an aeration chamber, a reaction chamber, a water tank, and a plurality of pumps. The water tank houses the treated water and is the supply source for supplying water to different water needs. The f... | 02/25/2003 |
| 6519787 | Toilet water recycling system A water treatment and recycling system is provided having an aeration chamber, a reaction chamber, a water tank, and a plurality of pumps. The water tank houses the treated water and is the supply source for supplying water to different water needs. The f... | 02/18/2003 |
| 6412121 | Thermo-evaporation type toilet system In fuller detail, the present invention relates to a thermo-evaporative type toilet system designed so that the excrement collected from the toilet is treated with effective microorganisms and heated for evaporation to generate vapors, with the stench bei... | 07/02/2002 |
| 6178566 | Transportable waste collection and treatment toilet system A toilet housing and waste collection and treatment system purify wastewater to a satisfactory level. When solid wastes are conveyed from individual toilets (31)-(33) into an active circulation chamber (16) in a toilet housing (10), the solid wastes are s... | 01/30/2001 |
| 5500960 | Flush system for outdoor portable toilets A flushing system is provided for an outdoor portable toilet of the type having a cabana containing a waste material storage tank upon which a toilet structure is positioned for the deposit of toilet waste material into the tank by gravity. A separate fre... | 03/26/1996 |
| 5080797 | Method of disposing of fecal matter from toilet systems in fast moving vehicles A method and apparatus for disposing of fecal matter from a toilet system in a fast moving vehicle during travel of the vehicle. The liquid components of the fecal matter are dehydrated to recover water. The water is disposed of by either discharging the ... | 01/14/1992 |
| 5068926 | Flush toilet A flush toilet of the present invention has a toilet stool and an incinerating pot, they are connected to each other by a vertical drain pipe. A shutter is provided which opens the drain pipe during discharge of waste material and closes after completion ... | 12/03/1991 |
| 5045188 | Recirculating toilet water system with self-purging valve operable by a restoring spring A recirculating toilet water system includes: a toilet, a main water tank for storing water and receiving waste matters from the toilet, a filtered water supply means for supplying filtered water as filtered through a screen from the main water tank for f... | 09/03/1991 |
| 4973402 | Flow restrictor and strainer assembly for a toilet tank fill valve and the like A fluid flow fill valve (10) has an elongated strainer member (40) with a plurality of axially extending flanges (44) each having alternating notches (48) and comb-like elements (46) which abut a complementarily tapered supply conduit wall (25) to provide... | 11/27/1990 |
| 4672690 | Vacuum tank construction for self-contained sewage handling apparatus A sewage treatment system includes a toilet, vacuum tank, and vacuum pump. The toilet has a discharge portion at its bottom, and a foot operated valve selectively allows, or blocks, passage of water and waste from the toilet bowl into the discharge. When ... | 06/16/1987 |
| 4585562 | Self-contained sewage waste disposal system A self-contained sewage waste disposal system including a housing structure and a toilet bowl adapted to receive human waste and fluid for diluting the waste, transporting the waste and rinsing the bowl. A removable filter cassette is in the housing in co... | 04/29/1986 |
| 4547917 | Water closet system having a liquid separator A water closet system comprising a lavatory which is connected to a collection tank or mouldering chamber (2) over a discharge piping (3), and a liquid separator (4) interconnected in said discharge piping (3) adjacent and above the tank or chamber (2). T... | 10/22/1985 |
| 4519103 | Self-contained sewage waste disposal system A self-contained sewage waste disposal system including a housing structure and a toilet bowl adapted to receive human waste and fluid for diluting the waste, transporting the waste and rinsing the bowl. A removable filter cassette is in the housing in co... | 05/28/1985 |
| 4433443 | Self-contained flow through sewage waste disposal system A self-contained sewage waste disposal system including a housing structure and a toilet bowl adapted to receive human waste and fluid for diluting the waste, transporting the waste and rinsing the bowl. A removable filter cassette is in the housing in co... | 02/28/1984 |
| 4393524 | Self-contained sewage waste disposal system A self-contained sewage waste disposal system is provided including a housing structure and a toilet bowl adapted to receive human waste and fluid for diluting the waste, transporting the waste and rinsing the bowl is provided in the housing structure. A ... | 07/19/1983 |
| 4359789 | Sewerless disposal system A waste disposal system is disclosed which includes apparatus for treating water which has been used for cleaning, washing and for flushing toilets and for disposing of waste products by incineration. The total output of the system to the environment is t... | 11/23/1982 |
| 4313233 | Waterless flush toilet system A waterless flush toilet system comprising a toilet and a gravity fed waste holding tank. The system utilizes a recirculating nonaqueous flushing fluid which is stored within the holding tank. The fluid, which is lighter than the waste material and insolu... | 02/02/1982 |
| 4271539 | Quick-change toilet system A quick-change toilet system capable of being readily converted between a non-flushing toilet and a recirculating flushing toilet is disclosed. The system includes a waste holding tank with an open frame member mounted on the top thereof. The system utili... | 06/09/1981 |
| 4246665 | Non-polluting toilet system Apparatus for disposing of human waste comprising in combination a bowl, a treating chamber connected to the bowl for receiving the contents of the bowl together with a predetermined quantity of flush water, a macerator in the treating chamber for effecti... | 01/27/1981 |
| 4222130 | Waterless flush toilet system A waterless flush toilet system comprising at least one toilet and a gravity fed waste holding tank. The system utilizes a recirculating nonaqueous flushing fluid which is stored within the holding tank. The fluid, which is lighter than the waste material... | 09/16/1980 |
| 4213864 | Combination of a biological dry toilet and a biological waste water purifying plant A combination of a biological dry toilet and a biological waste water purifying plant. The combination comprises a tank for composting waste, a means for change of air in the tank, and a sludge sedimentation tank. A biofilter is provided through which the... | 07/22/1980 |
| 4197597 | Water recycling with solids and foam removal A water economizing system for new or existing buildings where the waste lines of lavatory sinks, showers and clothes washing machines are connected to a storage reservoir for accumulation of water therein. This accumulated water is filtered and treated a... | 04/15/1980 |
| 4162549 | Filtering elements A back-washable filtering element, especially for use with pumps, and more particularly for use with pumps that handle liquids with solid material entrained therein, consists of a helical coil spring disposed in a flow path for the liquid to be filtered. ... | 07/31/1979 |
| 4115879 | Water recirculation system A system to be incorporated in new or in existing buildings where the waste lines of lavatory sinks, showers and clothes washing machines are connected to a storage reservoir for accumulation of water therein. This accumulated water is filtered and treate... | 09/26/1978 |
| 4070714 | Sewerless recirculating toilet and human waste storage system A sewerless recirculating toilet and human waste storage system wherein human waste products and a flushing fluid of a specific gravity less than water are received from a commode, the waste products are separated from the flushing fluid, the separated wa... | 01/31/1978 |
| 4040956 | Synthetic flush fluids A process for disposing of sewage in a synthetic flush fluid recycle toilet facility. Sewage is deposited in a recirculating sanitary system charged with a synthetic flush fluid and is periodically separated and transferred for disposition. The flush flui... | 08/09/1977 |
| 4014767 | Self-contained waste disposal system including self-cleaning filter A self-contained toilet and waste treatment system comprises a toilet, a water flushing means, a waste treatment chamber including a comminuted redwood filter bed and digestion medium and a final filter, which treats the liquid effluent from the redwood f... | 03/29/1977 |
| 3950249 | Sanitary waste treatment plant A self-contained toilet and sanitary waste treatment plant that has a delivery system, a biological treatment system and a water recovery system. The delivery system includes a vacuum-type flush toilet adapted to receive flush water from the water recover... | 04/13/1976 |
