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...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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Inventor: Udo Hafner


Address: Lorch, DE
No. of patents: 34
Last patent issue date: 01/14/1992

NumberTitleIssue Date
5080070Hydraulic circuit of a fuel injection system
A hydraulic circuit for a fuel injection system having fuel injection valves, in which even under hot start conditions in an internal combustion engine, it is assured that the engine will start and continue to operate reliably. The hydraulic circuit is em...
01/14/1992
5012787Fuel injection system
A fuel injection system for internal combustion engines is proposed which serves the purpose of fuel injection into the air intake tube of the engine. The fuel injection system includes a fuel injection valve, which is supported upstream of a throttle val...
05/07/1991
4860710Fuel supply line
A fuel supply line, which serves to supply fuel to a fuel injection system for internal combustion engines. The fuel supply line includes receptacles, in each of which a stepped receiving bore is formed with the bores arranged to surround the injection va...
08/29/1989
4857003Apparatus for electrical connection of electromagnetically actuatable fuel injection valves
An apparatus for effecting electrical connection of fuel injection valves for fuel injection systems of internal combustion engines connected to an electronic control unit simultaneously onto each of the individual fuel injection valves. The individual pl...
08/15/1989
4830286Electromagnetically actuatable valve
In valves having flat armatures, in order to attain the shortest possible switching times, the goal is to to reduce the mass of the armature and the surface area of the stops. A particularly advantageous design is obtained by embodying the flat armature i...
05/16/1989
4826082Fuel injection valve
An electromagnetically actuatable fuel injection valve which has an internal scavenging system for cleaning dirt particles from a magnetic field air gap. A portion of the fuel flowing in via an inflow line and an inflow opening reaches the vicinity of an ...
05/02/1989
4817876Electromagnetically actuatable valve, in particular fuel injection valve
Contact pins of fuel injection valves are typically sealed off from the valve housing with sealing rings and provided with small plastic caps to protect them from an extruded plastic coating. The present invention simplifies this sealing. Accordingly, the...
04/04/1989
4813599Electromagnetically actuatable fuel injection valve
The invention relates to an electromagnetically actuatable fuel injection valve which is used to supply fuel to a mixture compressing internal combustion engine. The fuel injection valve comprises a valve housing provided with an extension in which a valv...
03/21/1989
4807846Electromagnetically actuatable fuel injection valve
An electromagnetically actuatable fuel injection valve which serves to supply fuel to a mixture-compressing internal combustion engine having externally supplied ignition. The fuel injection valve includes a valve housing with a mouth piece in which a val...
02/28/1989
4800912Electromagnetically operable valve and method for producing such a valve
An electromagnetic valve consists of two valve housing parts, connected by crimping and axially braced, and having a magnetic pipe care therein. A flat armature is positively connected with a spherically shaped valve closing part, which extends through a ...
01/31/1989
4795097Electromagnetically actuatable fuel injection valve
An electromagnetically actuatable fuel injection valve, which serves to supply fuel to a mixture-compressing internal combustion engine having externally supplied ignition. The fuel injection valve includes a valve housing with a mouth piece, in which a v...
01/03/1989
4786030Electromagnetically actuatable fuel injection valve
An electromagnetically actuatable fuel injection valve which serves to supply fuel to a mixture-compressing internal combustion engine having externally supplied ignition. The fuel injection valve includes a valve housing with a mouth piece, in which a va...
11/22/1988
4779331Method of manufacture of an electromagnetically actuatable fuel injection valve
An electromagnetically actuatable fuel injection valve, which serves to supply fuel to mixture-compressing internal combustion engines having externally supplied ignition. The fuel injection valve includes a base plate into which pole pieces having bent p...
10/25/1988
4779838Electromagnetically actuatable fuel injection valve
An electromagnetically actuatable fuel injection valve which serves to supply fuel to a mixture-compressing internal combustion engine having externally supplied ignition. The fuel injection valve includes a valve housing with a mouth piece, in which a va...
10/25/1988
4747384Fuel injection system
A fuel injection system for internal combustion systems is proposed, which serves to inject fuel into the intake tube of the engine. The fuel injection system includes at least one fuel injection valve which is disposed in the interior of a holder and com...
05/31/1988
4704591Electromagnetically actuable fuel injection valve and method for its manufacture
An electromagnetically actuable fuel injection valve, which serves to supply fuel to mixture-compressing internal combustion engines having externally supplied ignition. The fuel injection valve includes a base plate into which pole pieces having bent pol...
11/03/1987
4678124Electromagnetically actuatable valve in particular a fuel injection valve
An electromagnetically actuatable valve, in particular a fuel injection valve for fuel injection systems, which serves to supply fuel to internal combustion engines. The fuel injection valve comprises a valve chamber and a core upon which a magnet coil is...
07/07/1987
4597558Electromagnetically actuatable valve
An electromagnetically actuatable valve is proposed, which serves in particular to inject fuel into the intake tube of internal combustion engines having fuel injection systems. The fuel injection valve includes a valve housing, a core having a magnetic c...
07/01/1986
4582085Electromagnetically actuatable valve
An electromagnetically actuatable valve which serves to control a flow of fluid. The valve includes a valve housing and a core of ferromagnetic material as well as an armature, which actuates a valve element cooperating with a fixed valve seat. When a mag...
04/15/1986
4555060Electromagnetically actuated valve, in particular a fuel injection valve for fuel injection systems
An electromagnetically actuatable valve which serves in particular to inject fuel into the intake tube of internal combustion engines operating with fuel injection systems. The fuel injection valve includes a valve housing, a shell core having a magnetic ...
11/26/1985
4527744Electromagnetically actuatable valve
An electromagnetically actuatable valve which serves to control a flow of fluid. The valve includes a valve housing and a core of ferromagnetic material, as well as an armature which actuates a valve element cooperating with a fixed valve seat. When the m...
07/09/1985
4502632Electromagnetically actuatable valve, in particular a fuel injection valve for fuel injection systems
An electromagnetically actuatable valve is proposed which serves in particular to inject fuel into the intake tube of internal combustion engine operating with fuel injection systems. The fuel injection valve includes a valve housing, a shell core having ...
03/05/1985
4483484Electromagnetically actuatable valve
An electromagnetically actuatable fuel injection valve for fuel injection systems comprises a valve casing and a first connecting pipe which serves as a magnetic core over which a solenoid winding is disposed. A second connecting pipe is disposed interior...
11/20/1984
4477027Electromagnetically actuatable valve, in particular a fuel injection valve for fuel injection systems
An electromagnetically actuatable valve which serves in particular to inject fuel into the intake tube of internal combustion engines operating with fuel injection. The fuel injection valve includes a valve housing, a shell core with a magnetic winding, a...
10/16/1984
4471914Electromagnetically actuatable valve
An electromagnetically actuatable valve, in particular a fuel injection valve for fuel injection systems. The valve includes a valve housing of ferromagnetic material and a core on which a magnetic coil is placed. An intermediate disk of ferromagnetic mat...
09/18/1984
4455982Electromagnetically actuatable valve
An electromagnetically actuatable fuel injection valve for delivering fuel in internal combustion engines comprises a valve casing and an electromagnet core on which a coil carrier carrying a solenoid winding is mounted. The fuel inflow via the feed pipe ...
06/26/1984
4453671Fuel injection system
A fuel injection system for internal combustion engines which serves to inject fuel into the air intake tube of the engine. The fuel injection system includes at least one fuel injection valve, which is disposed in a holder body and communicates with a fu...
06/12/1984
4436071Electromagnetically actuatable valve, in particular a fuel injection valve
An electromagnetically actuatable valve, especially an injection valve for fuel injection systems which supply internal combustion engines with fuel, is proposed in which the fuel injection valve encompasses a valve chamber and a core upon which a magneti...
03/13/1984
4416238Fuel injection system
A fuel injection system for injecting fuel into the air intake tube of an internal combustion engine, including at least one fuel injection valve, which is disposed in a holder body and communicates with a fuel supply line and a fuel outflow line. The fue...
11/22/1983
4416423Electromagnetically actuatable valve, in particular a fuel injection valve for fuel injection systems
An electromagnetically actuatable valve is proposed, which serves in particular to inject fuel into the intake tube of internal combustion engines operating with fuel injection systems. The fuel injection valve includes a valve housing, a shell-type core ...
11/22/1983
4413244Electromagnet
An electromagnet is proposed which serves in particular for actuating a fuel injection valve for fuel injection systems of internal combustion engines. The electromagnet includes a housing and a magnetic coil mounted on a core. The supply of electric curr...
11/01/1983
4325253Apparatus for measuring the mass of a flowing medium
A temperature-dependent resistor is embodied as a hot wire and secured by support elements in a probe ring. At least one of the support elements has a contact area having the smallest possible cross section on which a hot wire securing portion is defined....
04/20/1982
4304128Apparatus for measuring the mass of a flowing medium
An apparatus is proposed for measuring the mass of a flowing medium, and in particular for measuring the air mass of internal combustion engines. The apparatus includes a resistor arranged in the stream of the flowing medium, the temperature and/or resist...
12/08/1981
4299125Air quantity metering apparatus
An apparatus is proposed for metering air quantity, particularly for metering induction air quantity in internal combustion engines, which has a temperature-dependent resistor disposed within an air stream, the temperature and/or resistance value of which...
11/10/1981
 
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