Patents by Inventor Ralf Kretzschmar

Ralf Kretzschmar 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).

  • Patent number: 11358100
    Abstract: An arrangement for providing sterile water for injection purposes is described. A device for heating drinking water above the boiling point, a device for maintaining a chamber inner pressure which lies below the atmospheric pressure, and an electronic controller are provided, and the chamber is equipped with at least one membrane which is impermeable for liquids and a film or plate at a distance from the membrane, wherein steam which is permeated through the membrane is condensed on the film of plate. The membrane and the film or plate form a module, and the condensed water can be removed from the chamber via an outlet as sterile water for injection purposes.
    Type: Grant
    Filed: May 20, 2016
    Date of Patent: June 14, 2022
    Assignee: Pharmatec GmbH
    Inventors: Ralf Kretzschmar, Daniel Daemmig, Michael von Papen, Stephan Simon
  • Patent number: 10702881
    Abstract: In the coating apparatus for granular bodies is disposed a rotatable hollow cylindrical drum in which there is an introduction apparatus for granular bodies and at least one movable separating element therein, with which a cycle zone can be partly separated from a downstream cycle zone and a movement of the at least one separating element that leads to release is achievable. An interior of the drum is divided into at least one cycle zone and a further cycle zone. A spray apparatus is disposed in one cycle zone, and an outlet in a cycle zone arranged downstream. A separating element is movable from a closed position into an open position. A separating element has a clear space above the closed subregion and an opening between one cycle zone and a cycle zone arranged thereafter, through which granular bodies can pass.
    Type: Grant
    Filed: April 20, 2018
    Date of Patent: July 7, 2020
    Assignee: Robert Bosch GmbH
    Inventors: Hans Dieter Cornelius, Ralf Kretzschmar
  • Patent number: 10363532
    Abstract: A coating apparatus having a rotatable drum with at least one moveable separating element arranged on an end side, and granular bodies can be transferred into the drum and/or out of the drum by a movement that leads to release. A separating element can be moved from a closed position into an open position by rotation about an axis of rotation. In the closed position, a subregion lies with its underside against an inner wall of the drum or has a small gap there. In the open position, the subregion on the underside is spaced apart from the inner wall of the drum and there is an opening there through which granular bodies can pass. On the end sides of the drum there are stop elements with which a drum of at least one further module is connectable in order to form a coating apparatus and/or a closure element.
    Type: Grant
    Filed: April 20, 2018
    Date of Patent: July 30, 2019
    Assignee: Robert Bosch GmbH
    Inventors: Hans Dieter Cornelius, Ralf Kretzschmar
  • Publication number: 20180311694
    Abstract: In the coating apparatus for granular bodies is disposed a rotatable hollow cylindrical drum in which there is an introduction apparatus for granular bodies and at least one movable separating element therein, with which a cycle zone can be partly separated from a downstream cycle zone and a movement of the at least one separating element that leads to release is achievable. An interior of the drum is divided into at least one cycle zone and a further cycle zone. A spray apparatus is disposed in one cycle zone, and an outlet in a cycle zone arranged downstream. A separating element is movable from a closed position into an open position. A separating element has a clear space above the closed subregion and an opening between one cycle zone and a cycle zone arranged thereafter, through which granular bodies can pass.
    Type: Application
    Filed: April 20, 2018
    Publication date: November 1, 2018
    Inventors: Hans Dieter Cornelius, Ralf Kretzschmar
  • Publication number: 20180311629
    Abstract: A coating apparatus having a rotatable drum with at least one moveable separating element arranged on an end side, and granular bodies can be transferred into the drum and/or out of the drum by a movement that leads to release. A separating element can be moved from a closed position into an open position by rotation about an axis of rotation. In the closed position, a subregion lies with its underside against an inner wall of the drum or has a small gap there. In the open position, the subregion on the underside is spaced apart from the inner wall of the drum and there is an opening there through which granular bodies can pass. On the end sides of the drum there are stop elements with which a drum of at least one further module is connectable in order to form a coating apparatus and/or a closure element.
    Type: Application
    Filed: April 20, 2018
    Publication date: November 1, 2018
    Inventors: Hans Dieter Cornelius, Ralf Kretzschmar
  • Publication number: 20180133653
    Abstract: The invention relates to an arrangement for providing sterile water for injection purposes. A device for heating drinking water above the boiling point, a device for maintaining a chamber inner pressure which lies below the atmospheric pressure, and an electronic controller are provided, and the chamber is equipped with at least one membrane which is impermeable for liquids and a film or plate at a distance from the membrane, wherein steam which is permeated through the membrane is condensed on the film of plate. The membrane and the film or plate form a module, and the condensed water can be removed from the chamber via an outlet as sterile water for injection purposes.
    Type: Application
    Filed: May 20, 2016
    Publication date: May 17, 2018
    Inventors: Ralf Kretzschmar, Daniel Daemmig, Michael von Papen, Stephan Simon
  • Patent number: 8449811
    Abstract: A method is for producing calcinated or sintered hollow bodies comprising a spherical surface, to hollow bodies produced using the method, and to the uses thereof. Calcinated or sintered hollow bodies comprising a spherically curved surface, an enlarged, freely accessible surface and/or a structured surface. An organic spherical carrier is coated with a powder which forms the shell of a hollow body, and a binding agent, both contained in suspension. A heat treatment is then carried out, leading to the expulsion of organic constituents and to the sin-tering process. At least one elevation is arranged on the surface of the carrier or embodied thereon, the projection past the surface corresponding at least to the thickness of the shell of the finished sintered hollow body, taking into account the degree of shrinkage of the powder material during the sintering process.
    Type: Grant
    Filed: August 17, 2006
    Date of Patent: May 28, 2013
    Assignee: Glatt Systemtechnik GmbH
    Inventors: Ralf Kretzschmar, Wolfgang Hungerbach, Gert Bingel
  • Patent number: 8232443
    Abstract: Method and device for inactivating a microbiologically contaminated mass containing solid particles. The method includes mixing the mass containing solid particles with a gelatinizing agent, transporting the mixed mass of solid particles and gelatinizing agent through a shaping device structured so that the mixed mass, at least in one area, is shaped to form a lamellar volume with a layer thickness of between 1 mm and 3 mm, and impinging the formed lamellar volume of the mixed mass with accelerated electrons.
    Type: Grant
    Filed: June 15, 2009
    Date of Patent: July 31, 2012
    Assignees: Fraunhoffer-Gesellschaft zur Foerderung der Angewandten Forschung E.V., Glatt Ingenieurtechnik GmbH, Glatt Systemtechnik GmbH
    Inventors: Olaf Roeder, Henrik Flaske, Christiane Wetzel, Frank-Holm Roegner, Wolfgang Prahl, Ralf Kretzschmar, Thomas Wegner, Reinhard Boeber
  • Publication number: 20100130805
    Abstract: Method and device for inactivating a microbiologically contaminated mass containing solid particles. The method includes mixing the mass containing solid particles with a gelatinizing agent, transporting the mixed mass of solid particles and gelatinizing agent through a shaping device structured so that the mixed mass, at least in one area, is shaped to form a lamellar volume with a layer thickness of between 1 mm and 3 mm, and impinging the formed lamellar volume of the mixed mass with accelerated electrons.
    Type: Application
    Filed: June 15, 2009
    Publication date: May 27, 2010
    Applicants: FRAUNHOFER-GESELLSCHAFT ZUR FOERDERUNG DER ANGEWANDTEN FORSCHUNG E.V., GLATT INGENIEURTECHNIK GMBH, GLATT SYSTEMTECHNIK GMBH
    Inventors: Olaf ROEDER, Dipl.-lng. Henrik FLASKE, Christiane WETZEL, Dipl.-Phys. Frank-Holm ROEGNER, Wolfgang PRAHL, Ralf KRETZSCHMAR, Thomas WEGNER, Reinhard BOEBER
  • Publication number: 20080299336
    Abstract: A method is for producing calcinated or sintered hollow bodies comprising a spherical surface, to hollow bodies produced using the method, and to the uses thereof. Calcinated or sintered hollow bodies comprising a spherically curved surface, an enlarged, freely accessible surface and/or a structured surface. An organic spherical carrier is coated with a powder which forms the shell of a hollow body, and a binding agent, both contained in suspension. A heat treatment is then carried out, leading to the expulsion of organic constituents and to the sintering process. At least one elevation is arranged on the surface of the carrier or embodied thereon, the projection past the surface corresponding at least to the thickness of the shell of the finished sintered hollow body, taking into account the degree of shrinkage of the powder material during the sintering process.
    Type: Application
    Filed: August 17, 2006
    Publication date: December 4, 2008
    Inventors: Ralf Kretzschmar, Wolfgang Hungerbach, Gert Bingel
  • Patent number: 7325969
    Abstract: A container mixer comprising a loadbearing device, a mixer arm (5) and a docking unit (6) for holding a container (7). The mixer arm (5) is mounted on the rotatable part of a first rotary device (10) having a horizontal first axis of rotation (14), whose fixed part is held on a loadbearing device, and the docking unit (6) is mounted on the rotatable part of a second rotary device (11) having a second axis of rotation (15), whose fixed part is held on the mixer arm (5). The fixed part of the first rotary device (10) can also be mounted on a lifting carriage (4) which is vertically displaceably mounted on the loadbearing device. The axes of rotation of the first and second rotary device (10, 11) can be arranged in such a way that their axes of rotation (14, 15) intersect within the container (7).
    Type: Grant
    Filed: July 8, 2004
    Date of Patent: February 5, 2008
    Assignee: Glatt Systemtechnik GmbH
    Inventors: Ralf Kretzschmar, Heinz Pritzke, Christian Schwaar
  • Publication number: 20060007780
    Abstract: A container mixer comprising a loadbearing device, a mixer arm (5) and a docking unit (6) for holding a container (7). The mixer arm (5) is mounted on the rotatable part of a first rotary device (10) having a horizontal first axis of rotation (14), whose fixed part is held on a loadbearing device, and the docking unit (6) is mounted on the rotatable part of a second rotary device (11) having a second axis of rotation (15), whose fixed part is held on the mixer arm (5). The fixed part of the first rotary device (10) can also be mounted on a lifting carriage (4) which is vertically displaceably mounted on the loadbearing device. The axes of rotation of the first and second rotary device (10, 11) can be arranged in such a way that their axes of rotation (14, 15) intersect within the container (7).
    Type: Application
    Filed: July 8, 2004
    Publication date: January 12, 2006
    Inventors: Ralf Kretzschmar, Heinz Pritzke