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 |
| 7311115 | Collection valve for water reclamation system A collection valve for use in a water reclamation system includes a drain pipe and a collection port assembly. The drain pipe includes an inlet port connectable to a drain line from which gray water is supplied, a collection inlet, and an outlet port. The collection... | 12/25/2007 |
| 7305808 | Packaging machine A packaging machine moves its heater unit for longitudinal sealing of a tubularly formed film between a sealing position at which the heater unit contacts the film and a retracted position at which it is separated from the film. In addition to the mechanism for this... | 12/11/2007 |
| 7013920 | Valve, especially proportional solenoid valve A valve has a solenoid part and a valve part connected to the solenoid part. The valve part has a housing provided with connecting bores for a pressure medium, including a pressure connector and working connectors. The valve part has a piston and the solenoid part a... | 03/21/2006 |
| 6748965 | Double directional check valve and flow restrictor combination A double directional check valve and flow restrictor combination including a housing which contains a pair of axially-aligned check valves and a flow restrictor disposed between the check valves. Dry purge air flows into the housing through the flow restrictor, whic... | 06/15/2004 |
| 6474749 | Hydraulic system for actuating at least two operating systems of a motor vehicle A hydraulic system for actuating at least two operating systems of a motor vehicle has a first hydraulic medium reservoir for storing a hydraulic medium. A distribution valve is connected to the first hydraulic medium reservoir and to the operating system... | 11/05/2002 |
| 6276342 | Fuel supply system A fuel supply system for a motor vehicle has two feed units arranged in a fuel tank. The feed units in each case feed fuel out of baffles to an internal combustion engine of the motor vehicle and to suction jet pumps. This ensures a reliable supply of fue... | 08/21/2001 |
| 6223763 | Hydraulic system for actuating at least two operational areas in a vehicle A hydraulic system for a vehicle including a distributor, or switch, valve for actuating at least two operational areas and supplying the two areas with sufficient amounts of hydraulic medium is provided. The distributor, or switch, valve preferably compr... | 05/01/2001 |
| 6217760 | Waste water treatment system The waste water treatment system comprises a waste water treatment facility having an inlet for the entry of waste water and an outlet, and a re-circulation tank including an inlet and an outlet. The inlet of the waste water treatment facility is in fluid... | 04/17/2001 |
| 5472009 | Fluid regulator A fluid regulator has two valve bodies (24, 25) placed opposite and cooperating with two openings (22, 23) for controlling the fluid flow from an inlet chamber to two outlet chambers. A spindle (34) interconnects the valve bodies (24, 25) at a predetermin... | 12/05/1995 |
| 5234012 | Petroleum stream control system and method A petroleum stream control system includes a valve receiving a petroleum stream which divides the petroleum stream into at least two petroleum substreams in accordance with the control signal. A sample stream is withdrawn from each substream and irradiate... | 08/10/1993 |
| 5165450 | Means for separating a fluid stream into two separate streams Valve means includes a first pipe which receives a signal fluid stream. The stream is separated into two substreams in accordance with a control signal. A second and third pipe are connected to the separating apparatus provides the substreams external to ... | 11/24/1992 |
| 5052425 | Method and apparatus for continuous removal of a sub-quantity from a gas stream A method and apparatus for controlling the volume stream of a sub-quantity which is continuously removed from a gas stream and which is supplied and mixed with a gaseous dilutant stream, the sub-quantity is conducted from the main stream through a back-up... | 10/01/1991 |
| 4822485 | Recirculating sand filter valve A recirculating sand filter system for the treatment of waste water comprises a septic tank (10) for receiving waste water, a recirculating pump tank (18) connected to the septic tank for receiving effluent from the septic tank and one or more sand filter... | 04/18/1989 |
| 4818384 | Recirculating sand filter A recirculating sand filter system for the treatment of waste water comprises a septic tank (10) for receiving waste water, a recirculating pump tank (18) connected to the septic tank for receiving effluent from the septic tank, and one or more sand filte... | 04/04/1989 |
| 4717396 | Floating pressure control for a gas distribution system In a process in which a compressor feeds gas to a manifold which in turn supplies a controlled flow of gas to each of a plurality of users in parallel operation, method and apparatus are provided for controlling the back pressure acting against the compre... | 01/05/1988 |
| 4683802 | Divided flow self-leveling system A load self-leveling system for a vehicle utilizing hydraulic cylinders to operate a telescopic lifting boom and a material handling carriage. The system includes a pair of fluid flow dividers interposed between the source of hydraulic fluid under pressur... | 08/04/1987 |
| 4495961 | Flow divider The present invention relates to a flow divider for carrying out a load-ipendent division of a stream of hydraulic fluid, comprising a basic body including an internal bore, a central main connection and two outer consumer connections leading to said int... | 01/29/1985 |
| 4487220 | Fuel distribution valve with thermal buffer member A fuel distribution valve assembly is provided with a laminated thermal buffer member between the valve housing and inner valve means to prevent binding of the valve means from thermal effects.... | 12/11/1984 |
| 4294278 | Pressure modulating valve A pressure modulating valve 28 has a principal use for retrofitting into an original hydraulic system (10) to modulate the fluid pressure from a source (11) of hydraulic fluid to hydraulic clutches (50, 52) in a transmission (54). In prior art valves, the... | 10/13/1981 |
| 4269211 | Steam manifold distribution system for providing equal quality of steam in two lines A method for equalizing the steam quality in a plurality of branch lines of a high pressure steam pipeline, as a tee joint comprises dividing the flow of steam entering the tee joint into the two branch lines with a perforated baffle plate rotatable in re... | 05/26/1981 |
| 4226365 | Fuel distribution valve for a gas turbine engine A valve having a translatable annular slot communicates with discretely shaped and judiciously located elongated, variable width slots for metering fuel to individual fuel nozzles in a burner of a jet engine without changing the fuel scheduling characteri... | 10/07/1980 |
| 4193418 | Arrangement for preventing excess pressure in the housing of shut-off valves An arrangement for the prevention of excess pressure in housings of shut-off valves with varying pressure loads, in which an independent chamber is provided with two facing openings. These are connected by pressure lines to pipe sockets connected to the s... | 03/18/1980 |
| 4170279 | Fluid flow control devices A fluid flow control device suitable for controlling the flow of fluid between two chambers of a jack comprises a valve between each of the two chambers being controlled and a common chamber. The valves are controlled by pilot operated stops which, when r... | 10/09/1979 |
| 4108198 | Multirotary energy conversion valve A multirotary energy conversion valve comprising inlet and outlet passages interposed by meshing pairs of inlet and outlet rotors of unequal constant volume displacements with an enclosed channel in between for fluid energy conversion with additionally at... | 08/22/1978 |
| 4080979 | Combined summing and underspeed valve A combined summing and underspeed valve including a valve body having a bore, a spool within the bore, an outlet from the bore in the body intermediate the ends of the bore, a pair of spaced inlets in the bore for receiving fluid under pressure to apply f... | 03/28/1978 |
| 4036194 | Fuel injection system A fuel distribution system for an internal combustion engine with a plurality of fuel injection nozzles of the type including means for metering the total quantity of the fuel to be introduced into the engine, and means for dividing the fuel from said met... | 07/19/1977 |
| 3986540 | Fluid servicing unit for automatic fastener feeding and driving apparatus A fluid servicing unit for use in an automatic fastener feeding and driving apparatus of a type including a fastener container, a fastener driving tool and a mechanism for feeding fasteners successively and one by one from the container to the driving too... | 10/19/1976 |
