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7513991 |
Aquarium filter indicator
A clogging indicator for a fish tank or aquarium comprising a transparent vertical tube with a float positioned therein. The indicator is designed to sit on the outside of the tank and the filter...
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6132626 |
Liquid filter
A filtration unit is provided with a self-cleaning mechanism which backflushes a screening element therein when it becomes blinded by solid material. A reservoir enables a head of screened liquid...
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5942105 |
Float actuated water control valve
A float actuated water level control valve has a sliding valve tube depending from a float to meter the amount of water flow through the valve proportionally in response to the position of the...
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5389245 |
Vapor separating unit for a fuel system
A vapor separating unit for a fuel system and having particular application to a fuel system for a marine engine. The vapor separating unit includes a closed tank having a fuel inlet through which...
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5374352 |
Universal recycled wash water system
A universal recycled wash water plant having a collector tank through which collected wash water and rinse water is channeled to a grease/oil/water separation tank which separates oil and grease...
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5147556 |
Thickener
A thickener for liquids or pulps includes a tank in which flocculation takes place. A feedwell for feed liquid is disposed within the tank and has a restricted bottom opening in fluid communication...
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5112492 |
Automated bubble trap
An automated bubble trap for a liquid chromatography system includes a bubble trap or reservoir with level sensing devices at spaced elevations so that the liquid chromatography system can be...
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5055185 |
Anti-freeze separator assembly
This invention relates to an anti-freeze separator assembly connected to a piece of equipment in outdoor freezing conditions in order to take a fluid, such as water, and treat same for subsequent...
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4957624 |
Method of and arrangement for purifying contaminated water
Contaminated water is purified by introduction into a filter, filtering the water, accumulating the partially purified water delivered from the filter, heating the collected water to a temperature...
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4803054 |
Asymmetric heat-exchange reaction apparatus for effecting chemical reactions
In accordance with the present invention there is provided a reaction apparatus having an externalized heat exchange mechanism by which heat may be added to or withdrawn from a reactant mixture. In...
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4649579 |
Swimming pool skimming weir
A device is provided to control the level of water in the gutter of a swimming pool which is responsive to the level of water in the pool. Weirs are provided on the pool side of the gutter to which...
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4622134 |
Apparatus for treating sewage
An apparatus for treating sewage is disclosed wherein incoming sewage is in turn put into a balancing tank, an aeration tank and a precipitation tank, settled sludge in the precipitation tank being...
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4595497 |
Purified water reverse osmosis reservoir
A reverse osmosis system in which a pair of oppositely disposed, vertically aligned rigid cup shaped bodies that have outwardly extending first flanges are by a circumferentially adjustable band...
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4585554 |
Combined purified water dispensing device and reject water control device
A purified water dispensing and reject water control device that when operatively associated with a pressurized feed water supplied reverse osmosis cartridge that has purified water and reject...
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4348281 |
Skimmer assembly for swimming pools
A skimmer assembly for use in swimming pools in which a skimmer housing is provided with a skimming inlet and a drain inlet for receiving water from a pool. An outlet is also provided for...
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4199452 |
Jet aeration channel system
Activated sludge waste water treatment systems utilizing influent and/or sludge return flow as pressurized gas-liquid contactor motive stream source and having improved energy efficiency. Staged...
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4082668 |
Ultra filtration apparatus and method
An ultrafiltration cell utilizing two membranes with a magnetic stirring bar system in between. This permits stacking of stirred cells and doubles the efficiency of each cell. Automatic stop to...
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3655051 |
UNDERWATER STORAGE SYSTEM
An underwater storage system collects waste, measures the collection and stores the waste in underwater storage tanks from whence the material is pumped when inlet measurement indicates the...
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3067879 |
Skim tank
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2981525 |
Apparatus for handling overspray paint
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2928268 |
Cleaning system with automatic by-pass
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2907460 |
Filter system coordinated fluid level control
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2805773 |
Continuous rotary filtration
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4782789 |
Title is not available
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