Patents by Inventor Hans A. Haerle

Hans A. Haerle 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: 20080096451
    Abstract: The invention relates to a device for acoustically and thermally shielding comprising a plate-shaped element. Said plate-shaped element comprises at least one layer of a woven metallic or plastic fabric having warp threads and weft threads, and said metallic or plastic tissue comprises pores. The warp threads and weft threads are not interlinked at their contact points by sintering.
    Type: Application
    Filed: August 13, 2005
    Publication date: April 24, 2008
    Inventor: Hans A. Haerle
  • Patent number: 6789386
    Abstract: An exhaust gas manifold for mounting on a cylinder head of an internal combustion engine, composed of at least one cylinder support having bores for evacuating the exhaust gas. The exhaust gas manifold comprises an exhaust gas manifold collector housing (9) for collecting exhaust gas from the cylinder head, and a sealing device (10) placed between the exhaust gas collector housing (9) and the cylinder head (2). The exhaust gas manifold collector housing (9) is provided with recesses (12) so that it can be directly connected to the cylinder head (2) via a fixation mechanism (18), whereby the effect of heat enables movements between the exhaust gas manifold collector housing (9) and the cylinder head (2).
    Type: Grant
    Filed: January 28, 2002
    Date of Patent: September 14, 2004
    Inventor: Hans A. Haerle
  • Patent number: 6604358
    Abstract: In an exhaust manifold to be mounted on a cylinder head of an internal combustion engine which cylinder head includes a plurality of exhaust passages, the exhaust manifold includes a gas collector housing with a mounting flange, a gas conducting duct arranged in spaced relationship within the gas collector housing and having a mounting collar, and a hold-down element mounted together with the flange onto the cylinder head and including a recess receiving the collar of the gas conducting duct for retaining the gas conducting duct in engagement with the cylinder head but permitting relative movement thereto.
    Type: Grant
    Filed: May 21, 2002
    Date of Patent: August 12, 2003
    Assignee: DaimlerChrysler, AG
    Inventors: Gerd Dürr, Georg Georgs, Gerd Tiefenbacher, Hans A. Härle
  • Patent number: 6254142
    Abstract: An exhaust manifold flange for an internal combustion engine, for sealably connecting at least one stub pipe of an exhaust manifold to a wall of the engine, the flange has a basic part made of sheet steel provided with a bead which extends substantially around the entire outer contour of the basic part, at least one receiving hole with another bead therearound for securely receiving the at least one stub pipe in the manifold which has holes which are arranged for attaching the exhaust manifold flange to the wall of the internal combustion engine.
    Type: Grant
    Filed: February 27, 1998
    Date of Patent: July 3, 2001
    Assignee: Daimler-Benz Aktiengesellschaft
    Inventors: Hans-Joerg Kaifel, Hans A. Haerle
  • Patent number: 5456069
    Abstract: An exhaust gas filter employed to remove harmful components from exhaust gases, more particularly from exhaust gases expelled by combustion engines, includes flow channels or chambers having gas-permeable walls. The walls are formed by a band having compression-moulded material and spacers with the band wound into a spiral. The spacers serve to form flow channels by maintaining a space between the individual windings of the band. The band and, if required, further parts of the proposed filter are then sintered together to form a unit.
    Type: Grant
    Filed: October 10, 1991
    Date of Patent: October 10, 1995
    Assignee: Schwaebische Huettenwerke GmbH
    Inventor: Hans A. Haerle
  • Patent number: 5425236
    Abstract: A catalyzer arrangement for the exhaust gases of an internal combustion engine in which the catalyzer body (6, 7) is formed from a weave, knit or fabric of metal fibers, metal chips, metal wires, metal powder or a mixture of them which is pressed together in several layers (11) to form a pack in the outlet region (4) of the cylinder of the internal combustion engine in front of the exhaust gas manifold (5) and/or in the inlet region of the exhaust gas manifold (5). In addition, or as an alternative, the cylinder crown (8) in the cylinder (2) of the internal combustion engine can also be provided with a catalyzer body (9).
    Type: Grant
    Filed: October 23, 1992
    Date of Patent: June 20, 1995
    Assignee: Schwaebische Huettenwerke GmbH
    Inventor: Hans A. Haerle
  • Patent number: 5405423
    Abstract: A filter for the separation of impurities from waste gases, in particular from the exhaust gases of an internal combustion engine, possesses a filter body, which consists of a plurality of compression moulded and high temperature resistant filter plates (10), in particular made of sintered metal powder, metal filings, metal fibres or a mixture thereof, which are disposed above or next to one another and between them form a plurality of flow ducts. To form inlet ducts (3) and outlet ducts (4) the flow ducts are open at one side and are closed on the other side. Walls of the filter plates (1) lying between the inlet and outlet ducts (3, 4) represent filter surfaces. Heat conducting sheets (5) are inserted into the inlet ducts (3).
    Type: Grant
    Filed: October 15, 1993
    Date of Patent: April 11, 1995
    Assignee: Schwaebische Huettenwerke GmbH
    Inventor: Hans A. Haerle
  • Patent number: 5266279
    Abstract: A filter or catalyst body for removing harmful constituents from the waste gases of an internal combustion engine, especially a diesel engine, is provided with at least one fabric layer of metal wires or metal fibers. Sintering material in the form of powder, granules, fiber fragments or chips is introduced into the meshes and is sintered on to the wires or fibers. The woven fabric is in the form of a twilled wire fabric (1), sintering material (4) being introduced into the meshes (5) thereof and being sintered together with the wires or fibers (2, 3).
    Type: Grant
    Filed: March 19, 1992
    Date of Patent: November 30, 1993
    Assignee: Schwaebische Huettenwerke GmbH
    Inventor: Hans A. Haerle
  • Patent number: 5240485
    Abstract: An exhaust gas filter, such as a soot filter for a diesel engine, is provided with a filter body disposed in a housing. The exhaust gases flow through the filter body to be cleaned. The filter also has an inlet duct and an outlet duct. Between the inlet duct and the outlet duct, there is disposed one or several lateral lines for passing gases along the outside of the filter body. Both ends of the lateral lines are connected via apertures to the inlet duct and the outlet duct, respectively. The cross sections of the inlet duct, outlet duct and the lateral lines are selected so that in the unloaded condition of the filter body a return flow in the lateral lines is produced, while a bypass flow is produced when a preselected loading condition of the filter body is reached.
    Type: Grant
    Filed: July 2, 1991
    Date of Patent: August 31, 1993
    Inventors: Hans A. Haerle, Hans J. Langer
  • Patent number: 5229078
    Abstract: A filter for the separation of impurities or contaminants from a fluid or gaseous medium, especially of harmful components from the exhaust fumes of an internal combustion engine, with a filter body having a plurality of inlet and outlet channels, whereby the inlet channels are separated from the outlet channels by filter walls forming reaction spaces. The filter bodies consist of a plurality of compression molded, high-temperature-resistant filter plates which, arranged one above the other, form a plurality of flow channels between themselves. For the formation of inlet and outlet openings, the channels are each open on one filter body end face and closed on the opposite end face. The channel closure and the connection of adjacent filter plates takes place alternately on each end face by two adjacent filter plates being pushed into and tightly surrounded by stirrup parts which extend over and grip the entire width of the filter plate adjacent end edges.
    Type: Grant
    Filed: November 14, 1990
    Date of Patent: July 20, 1993
    Assignee: Schwaebische Huettenwerke GmbH
    Inventor: Hans A. Haerle
  • Patent number: 5215724
    Abstract: A filter for removing impurities from waste gases, and especially from the waste gases of an internal combustion engine, includes a filter body consisting of a plurality of compression moulded, high temperature resistant, sintered filter plates consisting of metal powder, metal chips, metallic fibres or a mixture of these materials, which are arranged on top of or behind one another and kept at a distance from one another by spacers, to form between them a plurality of flow channels. The flow channels are open at one end and closed at the other end in order to form inlet and outlet channels. The walls of the filter plate situated between the inlet and outlet channels constitute filter surfaces. The filter plates are formed by filter discs lying on top of one another, arranged in a filter housing and having a free or open central interior space, so that the waste gases flow radially through the filter discs from the outside towards the interior space or from the interior space towards the outside.
    Type: Grant
    Filed: September 5, 1991
    Date of Patent: June 1, 1993
    Assignee: Schwabische Huttenwerke GmbH
    Inventor: Hans A. Haerle
  • Patent number: 5204067
    Abstract: A filter for the separation of impurities from exhaust gases, and in particular, from the exhaust gases of an internal combustion engine, is disclosed. The filter is provided with a filter body comprising a plurality of compression-moulded and sintered filter plates having high temperature stability. The plates are made from powdered metal, metal filings, metal fibers or a mixture thereof, which are disposed over one another or behind one another, and are spaced by spacers to form a plurality of flow ducts between them. The flow ducts are open on one end and closed on the other, with the walls of the filter plates lying between the inlet and outlet ducts representing filter surfaces. One insert or several inserts consisting of catalytic materials or coated with catalytic materials are inserted into the outlet ducts.
    Type: Grant
    Filed: July 11, 1991
    Date of Patent: April 20, 1993
    Assignee: Schwaebische Huettenwerke GmbH
    Inventor: Hans A. Haerle
  • Patent number: 5179061
    Abstract: A filter or catalyst body comprising wires or fibers is disclosed which is constructed in a single-layer or multi-layer as woven cloth, braiding or knitted fabric, the wires or fibers being at least partially connected to one another by sintering or welding. The woven cloth, netting, braiding or knitted fabric is endowed with inserted powdery, granular or chip-like particles which are sintered with or welded to the wires or fibers to provide a filter density which is lower in the inlet region of the filter body since fewer particles are provided there.
    Type: Grant
    Filed: July 12, 1991
    Date of Patent: January 12, 1993
    Inventor: Hans A. Haerle
  • Patent number: 5098670
    Abstract: A device for use in heating or incineration plants for use as a waste gas filter to eliminate and/or convert harmful elements in the waste gas is disclosed. The device of the subject invention can eliminate soot and soot-like products, or it can serve as a heat exchanger or as a mixing component for a furnace. The device of the subject invention comprises a sintered body made of one or more compression molded highly heat resistant sintered parts. The sintered body manifests high porosity and/or a multitude of intake and outlet channels.
    Type: Grant
    Filed: September 19, 1990
    Date of Patent: March 24, 1992
    Assignee: Schwaebische Huettenwerke GmbH
    Inventor: Hans A. Haerle
  • Patent number: 5059326
    Abstract: In a process for the manufacture of a filter for liquid or gaseous media, especially for exhaust gases of combustions engines, the filter is formed from one or several filter plates out of a mesh, network, reticulation or fabric of metal wires. The filter body of a plurality of layers or plies of wires is brought between the electrodes of a resistance welding unit and subsequently a resistance welding is performed for partial connection of the wires to one another by spot welding.
    Type: Grant
    Filed: August 9, 1990
    Date of Patent: October 22, 1991
    Assignee: Schwaebische Huettenwerke GmbH
    Inventor: Hans A. Haerle
  • Patent number: 5009857
    Abstract: A filter is disclosed for treating a gaseous stream to remove therefrom undesirable components, especially from exhaust gases of engines, and particularly from internal combustion engines, such as, for example, Diesel engines and the like. The filter includes a filter body or element having a plurality of inlet and outlet channels, with the inlet channels being separated from the outlet channels by walls or partitions to provide reaction chambers. The filter body is made a high-temperature-resistant, sintering material, and can be made of metal wire or metal chips which are compacted and subsequently sintered.
    Type: Grant
    Filed: February 10, 1989
    Date of Patent: April 23, 1991
    Assignee: Schwaebische Huettenwerke GmbH
    Inventor: Hans A. Haerle
  • Patent number: 4981172
    Abstract: A device for heat transfer or for heat dissipation from an object to a fluid, especially air is disclosed. The device is coated at least in part with shavings, metal wires or coarse metal powder made of thermally conductive material and sintered. The object may also consist fully or at least in part of the sintered materials.
    Type: Grant
    Filed: August 18, 1989
    Date of Patent: January 1, 1991
    Assignee: Schwaebische Huettenwerke GmbH
    Inventor: Hans A. Haerle
  • Patent number: 4971769
    Abstract: A device for use in heating or incineration plants for use as a waste gas filter to eliminate and/or convert harmful elements in the waste gas is disclosed. The device of the subject invention can eliminate soot and soot-like products, or it can serve as a heat exchanger or as a mixing component for a furnace. The device of the subject invention comprises a sintered body made of one or more compression molded highly heat resistant sintered parts. The sintered body manifests high porosity and/or a multitude of intake and outlet channels.
    Type: Grant
    Filed: August 18, 1989
    Date of Patent: November 20, 1990
    Assignee: Schwaebische Huettenwerke GmbH
    Inventor: Hans A. Haerle
  • Patent number: 4966811
    Abstract: A moulded body having an inner support matrix is enveloped at least partially with a plastic envelope making up the mould. The support matrix is formed at least partially from metal wire pieces and/or metal chips, which are compression moulded and sintered.
    Type: Grant
    Filed: August 23, 1989
    Date of Patent: October 30, 1990
    Assignee: Schaebische Huettenwerke GmbH
    Inventor: Hans A. Haerle