Did You Know...
...that several people are credited with the invention of the flush toilet? Most people have heard of Thomas Crapper (1837-1910), the sanitary engineer who invented the valve-and-siphon arrangement that made the modern toilet possible. Another claimant to "the throne" was British inventor Alexander Cumming who patented a toilet in 1775. Then there's a nameless Minoan (a native of ancient Crete) who lived 4,000 years ago who supposedly was ahead of his time and created the first flush toilet!
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| Number | Title | Issue Date |
| 6796772 | Ejector and negative-pressure supply apparatus using the same An ejector can obtain a sufficiently large suction air quantity without reducing the ultimate vacuum. A diffuser is disposed downstream of a nozzle to form a single Laval nozzle. A suction port is provided between the nozzle and the diffuser. The inlet of the diffus... | 09/28/2004 |
| 6537036 | Flow amplifying pump apparatus A flow amplifying pump apparatus includes a body member that defines a flow passageway and a compressed air inlet. The body member includes a main segment and an insert segment which extends into a container and rotates relative to the main segment. A cov... | 03/25/2003 |
| 6416295 | Vacuum-generating unit A first passage communicating with a compressed air supply port, a sixth passage communicating with a vacuum port, and an eighth passage communicating with an air discharge port for a solenoid-operated valve are arranged in parallel respectively. Further,... | 07/09/2002 |
| 6086333 | Process and device for quickly reducing pressure in an installation, in particular a hydrogen-cooled generator A method and device for quick pressure relief in a hydrogen-cooled generator system. The hydrogen-cooled generator system at least includes a first and second housing part and a hydrogen seal that separates the first housing part from the interior of the ... | 07/11/2000 |
| 6017195 | Fluid jet ejector and ejection method An improved vacuum apparatus and method is provided which includes a vacuum body, pump or ejector which produces a plurality of high velocity liquid jet streams of a primary fluid (liquid) such as water discharged into a convergent diffuser to draw a seco... | 01/25/2000 |
| 5667364 | Downhole hydraulic pump apparatus having a "free" jet pump and safety valve assembly and method A downhole hydraulic pump apparatus for a well assembly including a rigid, elongated production tubing extending into a formation producing production fluid. The hydraulic pump apparatus includes an elongated tube and a bottom-hole assembly mounted to a l... | 09/16/1997 |
| 5613245 | Method and apparatus for injecting wastes into a molten bath with an ejector The present invention relates to a method and an apparatus for injecting a particulate solid into a molten bath. The method includes forming a liquid stream and directing a first portion of the stream through an ejector for subsequent injection into a mol... | 03/18/1997 |
| 5593284 | Ejector pump having turbulence reducing flow directing profiles An ejector pump for the transport of materials or mixtures of materials capable of flowing with the aid of a fluid driving medium is provided. The ejector pump includes at least one flow management profile which is placed in the flow channel of the ejecto... | 01/14/1997 |
| 5058807 | High volume, low pressure spraying system A high volume, low pressure air system for atomizing a fluid, such as paint, includes, among other things, a variable jet venturi induction pump which generates low pressure air for powering one or more atomizing devices, such as spray guns, with the inta... | 10/22/1991 |
| 5044557 | High volume, low pressure spraying system A high volume, low pressure air system for atomizing a fluid, such as paint, includes, among other things, a variable jet venturi induction pump located within a sealed low pressure air tank for holding a relatively large volume of low pressure air genera... | 09/03/1991 |
| 4991776 | High volume, low pressure spraying system A high volume, low pressure air system for atomizing a fluid, such as paint, includes, among other things, a variable jet venturi induction pump located within a sealed low pressure air tank for holding a relatively large volume of low pressure air genera... | 02/12/1991 |
| 4909436 | Wet atmosphere generation apparatus The invention described herein relates to an apparatus for providing a selectively humidified gas to a camera canister (12) containing cameras and film used in space. A source of pressurized gas (leak test gas 26 or motive gas 21) is selected by a valve (... | 03/20/1990 |
| 4850809 | Air operated low pressure spraying system Apparatus for converting high pressure, low volume air to low pressure, high volume filtered air in order to successfully atomize fluids, such as paint, of various viscosities. The invention makes it possible to utilize safe, economical compressor air to ... | 07/25/1989 |
| 4781537 | Variable flow rate system for hydrokinetic amplifier A hydrokinetic amplifier 10 having a primary liquid input formed into a primary liquid jet surrounded by a motivating vapor that transfers vapor momentum to the primary liquid jet and accelerates the primary liquid jet through a minimum cross-sectional ar... | 11/01/1988 |
| 4775241 | Integrated liquid distribution apparatus A liquid distributing apparatus, particularly for incorporation in lids or covers of 3 to 5 gallon containers, has a four-way input valve for delivering water under pressure to wash hands, clean materials, etc., fill the tank on which the lid is placed an... | 10/04/1988 |
| 4541780 | Water jet aerator for ganged operation There is disclosed herein a spa water jet aerator which proportionately controls the flow of water and air with a single control movement of a valve mechanism. The air and water apertures in the valve body are so shaped and located such that the air flow ... | 09/17/1985 |
| 4134470 | Cruise control system using positive pressure to boost vacuum An aspirator using pressure from a suitable source boosts the vacuum available when intake vacuum drops. The pressure source may be the A.I.R. pump, for example. At low throttle settings engine vacuum is high and pump pressure is low. At 25% throttle engi... | 01/16/1979 |
