Patents by Inventor Hans List

Hans List has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20020169412
    Abstract: A needleless hypodermic injection system for injecting a liquid medication, which system comprises a disposable cartridge which contains a medication and which includes a propellant and an igniter, and a reusable application device which comprises a pressure chamber for receiving the medication cartridge, actuation means including an ignition system and means for ensuring reliability and safety of the system.
    Type: Application
    Filed: March 19, 2002
    Publication date: November 14, 2002
    Inventors: Hans-Peter Haar, George Bevan Kirby Meacham, Konrad Joseph Popp, Otto Bruntrup, Ulrich Josef Riemensperger, Guenter Franz Ihle, Bruno Robert Thos, Hans List, Dirk Bandau, Horst Engelhardt, Christian Gliewe
  • Publication number: 20020120216
    Abstract: TOe invention concerns a lancet system comprising a plurality of essentially needle-shaped lancets, a drive unit which has a drive element which is moved from a resting position into a lancing position in order to carry out a lancing process, a storage area to store the lancets, a withdrawal area to guide at least the tip of the lancet out of the system during the lancing process and a transport unit which can transport lancets from the storage area into the withdrawal area, wherein the drive element is arranged in such a manner that in the withdrawal area it can act on the lancet located there to carry out a lancing process and thus move the lancet from a resting position into a lancing position and wherein the system has a retraction device in the withdrawal area which can interact with the lancet located in the withdrawal area in order to move the lancet after completion of the lancing process from the lancing position into the resting position and it concerns a lancet magazine adapted to the system, a cor
    Type: Application
    Filed: September 26, 2001
    Publication date: August 29, 2002
    Inventors: Michael Fritz, Hans List, Thomas Weiss, Frank Deck, Herbert Argauer, Claudio Immekus
  • Patent number: 6440099
    Abstract: A hypodermic needleless injection system for injecting a liquid medication, which system comprises: a medication unit configured and dimensioned to store a volume of liquid to be injected, the medication unit having a first region and a second region that are in liquid communication with each other, the first region being deformable and the second region having at least one orifice, a hydrostatic chamber containing a hydrostatic pressure transfer medium, the hydrostatic chamber being so configured and dimensioned that the medication unit is located at least partially within the hydrostatic chamber and so that a pressure exerted on the transfer medium would cause the first region of the medication unit to deform so as to reduce the volume available for the liquid medication within the medication unit, and a first piston having a first end and a second end opposite to the first end, the first end having a surface which forms a closure of the hydrostatic chamber, and is adapted for applying a pressure on the tra
    Type: Grant
    Filed: February 12, 2001
    Date of Patent: August 27, 2002
    Assignee: Roche Diagnostics GmbH
    Inventors: Hans-Peter Haar, Hans List, George Bevan Kirby Meacham
  • Publication number: 20020052618
    Abstract: The invention describes an analytical device (1) which is suitable for collecting and examining body fluids and in particular blood. The analytical device (1) contains a test element (2) and a lancet (3) whereby the test element (2) contains the following components: 1.) a frame element (7), and 2.) at least one detection element (6) which can also be multilayered and can contain among others an erythrocyte separation layer, a spreading layer and an optical barrier layer which is directly or indirectly connected to the frame element (7) and the lancet (3) contains the following components: 1.) a needle (11) with a tip (23) and 2.) a lancet body (10) which at least partially surrounds the needle (11). The inventive device (1) is characterized in that the lancet body (10) is movably connected to the frame element (7) of the test element (2) i.e.
    Type: Application
    Filed: October 31, 2001
    Publication date: May 2, 2002
    Inventors: Hans-Peter Haar, Hans List
  • Publication number: 20010031945
    Abstract: A hypodermic needleless injection system for injecting a liquid medication, which system comprises:
    Type: Application
    Filed: February 12, 2001
    Publication date: October 18, 2001
    Inventors: Hans-Peter Haar, Hans List, George Bevan Kirby Meacham
  • Patent number: 5143694
    Abstract: A test strip evaluating instrument is used for testing of multiple test strips, and has a transport and positioning device which transports the test strips at right angles to their longitudinal direction from a test strip feed area along a transport path to a disposal area. At least one measuring station with an optical measuring unit is arranged on the transport path. Rails, on which the test strips slide, run along the transport path. The test strips are transported in a step-wise manner by at least two rows of cam elements following one another in the transport direction, and these two rows of cam elements move synchronously with one another in a periodically recurring movement path.
    Type: Grant
    Filed: December 4, 1990
    Date of Patent: September 1, 1992
    Assignee: Boehringer Mannheim GmbH
    Inventors: Dieter Schafer, Stephan Sattler, Peter Scheunert, Franz Laufenberg, Hans List, Klaus Steeg, Eugen Serrallach
  • Patent number: 4892065
    Abstract: The delivery of fuel into the combustion chamber of a diesel engine is aided by blowing in an amount of compressed air which is small compared to the stroke volume of the diesel engine after the stream of fuel has been injected into the combustion chamber via the fuel nozzle. In this way fuel particles which would otherwise remain in the injection nozzle and considerably increase the hydrocarbon content of the exhaust are removed from the nozzle and burned, at the same time clearing the nozzle holes of any remaining fuel. The compressed air blown in after fuel injection will assist combustion of the red-hot particles of the fuel stream which have formed immediately beyond the nozzle.
    Type: Grant
    Filed: May 25, 1989
    Date of Patent: January 9, 1990
    Assignee: AVL Gesellschaft Fur Verbrennungskraftmaschinen und Messtechnik M.B.H. Prof. Dr.Dr.H.C. Hans List
    Inventor: Hans List
  • Patent number: 4846114
    Abstract: The delivery of fuel into the combustion chamber of a diesel engine is aided by blowing in an amount of compressed air which is small compared to the stroke volume of the diesel engine after the stream of fuel has been injected into the combustion chamber via the fuel nozzle. In this way fuel particles which would otherwise remain in the injection nozzle and considerably increase the hydrocarbon content of the exhaust are removed from the nozzle and burned, at the same time clearing the nozzle holes of any remaining fuel. The compressed air blown in after fuel injection will assist combustion of the red-hot particles of the fuel stream which have formed immediately beyond the nozzle.
    Type: Grant
    Filed: September 14, 1987
    Date of Patent: July 11, 1989
    Assignee: AVL Gesellschaft fur Verbrennungskraftmaschinen und Messtechnik m.b.H. Prof. Dr.Dr.h.c. Hans List
    Inventor: Hans List
  • Patent number: 4716372
    Abstract: A circuit arrangement for monitoring the current supply of an electric consumer has a voltage regulator connected to an operating voltage that is variable over time and has a voltage monitor for switching on a consumer exclusively during the constant phase of the supply voltage. The voltage monitor is defined by a comparator at one input of which a reference voltage proportional to the regulator output voltage is present and at the other input of which a difference voltage picked up at the regulator output and exceeding a threshold value is present. A switch-on and switch-off signal can be take off at the comparator output.
    Type: Grant
    Filed: August 18, 1986
    Date of Patent: December 29, 1987
    Assignee: Robert Bosch GmbH
    Inventors: Edwin Fauser, Hans List
  • Patent number: 4665399
    Abstract: A device for transmitting of binary data between a mobile data carrier (10) and a stationary station (11) is provided with a first resonance circuit (13) in the stationary station (11), whereby a switchable field effect transistor (25) is parallel switched to its condenser (17) by means of a switching pulse sequence, a second resonance circuit (12) in the data carrier (10) which is at least conductively coupled for a short time with the first resonance circuit (13). For the purpose of enlarging the inductively to be bridged distances between the resonance circuits (12,13) of data carrier (10) and stationary station (11) without impairing the operating safety during the data transmission the resonance circuit (13) in the stationary station (11) is designed in such a manner that its resonance frequency is about equal to the switching pulse sequence.
    Type: Grant
    Filed: September 19, 1985
    Date of Patent: May 12, 1987
    Assignee: Robert Bosch GmbH
    Inventors: Edwin Fauser, Hans List, Gunter Schirmer
  • Patent number: 4475514
    Abstract: A fuel injection pump for internal combustion engines, in which a solenoid valve controlled by at least one of the state variables essential for operation of the engine, such as load, engine speed, pressure and temperature of combustion air, etc., controls the injection process by means of a shut-off device loaded by a spring on one end, the shut-off device being in one end position during the time of injection, but is subject to the feed pressure on both ends and is resting in the other end position while the pump is being filled. The chamber guiding the end of the slide-type shut-off device opposite the spring, is directly linked with the pump chamber of the high-pressure pump by a duct. In this manner the reversal of the slide takes place abruptly, which will permit a much better adaptation of the injection process to the different state variables of the combustion engine than before.
    Type: Grant
    Filed: December 22, 1982
    Date of Patent: October 9, 1984
    Inventor: Hans List
  • Patent number: 4377993
    Abstract: In an internal combustion engine an engine unit support is attached to an engine housing which is extended in upward direction. The two-part crankshaft bearings are attached to the engine unit support such that their upper part is fastened to the upper part of the engine unit support by mounting screws which can be handled from above and outside of the engine housing. The assembly unit which consists of crankshaft and crankshaft main bearings is supported in the engine housing by means of sound insulating elements. The whole design thus facilitates assembly and disassembly of the engine.
    Type: Grant
    Filed: May 15, 1981
    Date of Patent: March 29, 1983
    Inventor: Hans List
  • Patent number: 4313405
    Abstract: In an internal combustion engine comprising a crankshaft (7) and crankshaft main bearings (6), an engine unit support (1) which supports the crankshaft main bearings, and a cylinderhead (3) mounted on the engine unit support (1), which are engine parts directly affected by body resonance and sound vibration, at least one vibration absorbing and power transmitting element (15) located between the engine parts directly affected by sound vibration and the crankcase (8), a sealing element (21) located in a joint between a engine unit support (1) and the crankcase (8) which seals an encapsulated upper dry engine region oil-tightly against a lower oil-wetted engine region (22), an elastic filling element (19) bridging at least a part of the joint being inserted into the joint before the mounting of the sealing element (21) and supporting the latter, whereby the sealing element (21) comprises a viscous material forming an adhesive compound with metal which is resilient after curing.
    Type: Grant
    Filed: December 13, 1979
    Date of Patent: February 2, 1982
    Assignee: Hans List
    Inventors: Othmar Skatsche, Heinz Fachbach, Gerhard Thien, Karl Kirchweger, Josef Greier, Hans List
  • Patent number: 4281629
    Abstract: A compression ignition, direct injection internal combustion engine which includes at least each one cylinder, with an associated piston and injection nozzle, the piston having a combustion chamber in its head in the form of a body of rotation. The combustion chamber includes below the crown of the piston a constriction which divides the chamber in an upper part and a lower part. The connecting passage formed by the constriction between the upper part and the lower part of the chamber includes a number of additionally connecting canals in the region of the circumference of the chamber, which are groovelike and open to the chamber.Based on the specific forms and arrangements of the connecting canals, a marked micro turbulence of the cylinder charge, a better mixture formation and an improved combustion process, with lower amounts of unburnt hydrocarbons and soot in the exhaust, is achieved.
    Type: Grant
    Filed: November 14, 1979
    Date of Patent: August 4, 1981
    Inventor: Hans List
  • Patent number: 4280453
    Abstract: A multicylinder internal combustion engine with a crankcase secured to a connection flange of the cylinder block and a flywheel at the output end of the crankshaft, the distance between the connection flange and the crankshaft axis corresponding approximately to half the diameter of the flywheel.
    Type: Grant
    Filed: January 23, 1979
    Date of Patent: July 28, 1981
    Assignee: Hans List
    Inventors: Hans List, Othmar Skatsche, Josef Greier
  • Patent number: 4278055
    Abstract: Low-noise-level internal combustion Vee-engine with a skeletal engine unit support and the cylinder head mounted thereon, auxiliary units rigidly connected to the skeletal engine unit support and the cylinder head, an engine case surrounding the engine unit support and connected to same by at least one sound-absorbing member.
    Type: Grant
    Filed: July 9, 1979
    Date of Patent: July 14, 1981
    Assignee: Hans List
    Inventors: Hans List, Othmar Skatsche, Gerhard Thien, Heinz Fachbach, Josef Greier, Johann Wagner
  • Patent number: 4213439
    Abstract: An internal combustion engine comprises an engine unit support which contains the engine parts directly affected by body resonance (cylinderhead, cylinder, piston, connecting rod, crankshaft main bearing, and crankshaft) and a crankcase connected to the engine unit support by flanges located above the crankshaft. The crankshaft main bearings consist of bearing blocks and bearing caps which are connectable to main bearing units independently from the main bearing bolts. The bearing units are detachably secured to the engine unit support. The crankcase is provided with at least one aperture closed by at least one cover part below the crankshaft, said apertures providing access to the main bearing bolts. Dismounting of the engine unit support is enabled with the crankshaft and the main bearing units mounted thereon remaining in the crankcase and the crankcase remaining mounted on its place, for instance in a vehicle.
    Type: Grant
    Filed: November 16, 1978
    Date of Patent: July 22, 1980
    Assignee: Hans List
    Inventors: Gerhard Feichtinger, Othmar Skatsche, Hans List
  • Patent number: 4207843
    Abstract: A compression ignition direct injection internal combustion engine comprising at least each one cylinder, a piston and an injection nozzle, the cylinder having an inlet port for inducing rotation of the incoming air about the axis of the cylinder and a combustion chamber or cavity in the form of a body of rotation disposed in the piston, said chamber having, below the crown of the piston, a constriction which divides the chamber into an upper and a lower part.
    Type: Grant
    Filed: April 21, 1978
    Date of Patent: June 17, 1980
    Assignee: Hans List
    Inventors: Hans List, Siegfried Pachernegg, Bruno Schukoff
  • Patent number: 4188924
    Abstract: A ventilation system for an encapsulated internal combustion engine providing a reduction in short-circuit air flow from the pressure side to the suction side of the ventilation radial fan.
    Type: Grant
    Filed: August 18, 1977
    Date of Patent: February 19, 1980
    Assignee: Hans List
    Inventors: Karl Kirchweger, Bernd Pfeifer, Hans List, Josef Greier
  • Patent number: 4164262
    Abstract: A motor vehicle has an engine equipped with an oil sump which is secured in a body-sound-insulated manner to the engine block, and a fan-cooled water radiator, a frame-mounted elastic membrane being provided between the oil sump and the vehicle body components so that the membrane completely encircles the oil sump at its upper edge and provides an acoustic separation between the spaces respectively situated above and below the oil sump, the upper space comprising a sound suppressing encapsulation which is closed relative to the vehicle interior by appropriate wall panels, partitions and sealing sections provided in the vehicle body. The outflow of hot cooling air from the radiator completely by-passes the encapsulation, the sealed upper space of the encapsulation being cooled by the forced draught of a further fan, and sound absorbing silencers being provided at inlet and outlet openings for the cooling air in the encapsulation.
    Type: Grant
    Filed: September 23, 1977
    Date of Patent: August 14, 1979
    Assignee: Hans List
    Inventors: Othmar Skatsche, Heinz Fachbach, Gerhard Thien, Hans List, Josef Greier