Patents by Inventor Fritz Zimmermann

Fritz Zimmermann 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: 20220362595
    Abstract: A admixing system for fire extinguishing systems for producing an extinguishing agent-extinguishing agent additive mixture (premix) by mixing an extinguishing agent additive with an extinguishing agent. The admixing system has a motor that can be driven by a flow of extinguishing agent, an admixing pump connected to the motor for pumping the extinguishing agent additive, an admixing line, and an extinguishing agent additive line, from which the extinguishing agent additive is mixed with the extinguishing agent in the admixing line. The admixing system has a branching line, from which a part of the flow of extinguishing agent can be branched off if the load in the fire extinguishing system only requires a small flow of extinguishing agent. In this manner, the flow of extinguishing agent flowing through the motor is artificially increased so that the motor runs in a higher rotational speed range in which a reliable operation of the motor is ensured (a so-called start-up flow reduction).
    Type: Application
    Filed: October 2, 2020
    Publication date: November 17, 2022
    Inventors: Andreas HULINSKY, Fritz ZIMMERMANN
  • Patent number: 7641155
    Abstract: The invention relates to an arrangement for at least partially compensating a torque caused by gravitational forces acting on a mass body (2), which is rotatably supported on an axis of rotation (3). The arrangement includes a gas pressure spring (5) for providing a linear force. This linear force is transformed into a torque by means of a converter unit (7). The mass body (2) and the converter unit (7) can be coupled to each other in a way which allows for adjusting the amplitude and the phase of a compensating torque.
    Type: Grant
    Filed: November 19, 2002
    Date of Patent: January 5, 2010
    Assignee: Carl-Zeiss-Stiftung
    Inventors: Hartmut Gaertner, Fritz Zimmermann, Wolfgang Strauss
  • Patent number: 7219864
    Abstract: A carrier system (10) for a medical apparatus (11) is disclosed. The carrier system includes rotation joints (17, 18, 20). A supply line harness runs in the carrier system (10) and is run so that it is covered. The rotation joint (18) includes a tube-shaped holding member on which fingers are formed which hold a rotation joint. A joint element, which is rotatably journalled in a joint receptacle, is provided in the rotation joint (20). The joint element has a wave-shaped section which is connected via a connecting section to an annularly-shaped section functioning to accommodate a connecting arm.
    Type: Grant
    Filed: December 20, 2004
    Date of Patent: May 22, 2007
    Assignee: Carl-Zeiss-Stiftung
    Inventors: Wolfgang Strauss, Franz Krug, Fritz Zimmermann, Alfons Abele, Maren Lehmann, Lauric Weber
  • Publication number: 20070012853
    Abstract: A carrier system (10) for a medical apparatus (11) is disclosed. The carrier system includes rotation joints (17, 18, 20). A supply line harness runs in the carrier system (10) and is run so that it is covered. The rotation joint (18) includes a tube-shaped holding member on which fingers are formed which hold a rotation joint. A joint element, which is rotatably journalled in a joint receptacle, is provided in the rotation joint (20). The joint element has a wave-shaped section which is connected via a connecting section to an annularly-shaped section functioning to accommodate a connecting arm.
    Type: Application
    Filed: September 21, 2006
    Publication date: January 18, 2007
    Inventors: Wolgang Strauss, Franz Krug, Fritz Zimmermann, Alfons Abele, Maren Lehmann, Lauric Weber
  • Patent number: 6899307
    Abstract: A carrier system (10) for a medical apparatus (11) is disclosed. The carrier system includes rotation joints (17, 18, 20). A supply line harness runs in the carrier system (10) and is run so that it is covered. The rotation joint (18) includes a tube-shaped holding member on which fingers are formed which hold a rotation joint. A joint element, which is rotatably journalled in a joint receptacle, is provided in the rotation joint (20). The joint element has a wave-shaped section which is connected via a connecting section to an annularly-shaped section functioning to accommodate a connecting arm.
    Type: Grant
    Filed: May 19, 2003
    Date of Patent: May 31, 2005
    Assignee: Carl-Zeiss-Stiftung
    Inventors: Wolfgang Strauss, Franz Krug, Fritz Zimmermann, Alfons Abele, Maren Lehmann, Lauric Weber
  • Publication number: 20050109903
    Abstract: A carrier system (10) for a medical apparatus (11) is disclosed. The carrier system includes rotation joints (17, 18, 20). A supply line harness runs in the carrier system (10) and is run so that it is covered. The rotation joint (18) includes a tube-shaped holding member on which fingers are formed which hold a rotation joint. A joint element, which is rotatably journalled in a joint receptacle, is provided in the rotation joint (20). The joint element has a wave-shaped section which is connected via a connecting section to an annularly-shaped section functioning to accommodate a connecting arm.
    Type: Application
    Filed: December 20, 2004
    Publication date: May 26, 2005
    Inventors: Wolfgang Strauss, Franz Krug, Fritz Zimmermann, Alfons Abele, Maren Lehmann, Lauric Weber
  • Publication number: 20030230698
    Abstract: The invention relates to a carrier system (10) for a medical apparatus (11). The carrier system includes rotation joints (17, 18, 20). A supply line harness runs in the carrier system (10) and is run so that it is covered. The rotation joint (18) includes a tube-shaped holding member on which fingers are formed which hold a rotation joint. A joint element, which is rotatably journalled in a joint receptacle, is provided in the rotation joint (20). The joint element has a wave-shaped section which is connected via a connecting section to an annularly-shaped section functioning to accommodate a connecting arm.
    Type: Application
    Filed: May 19, 2003
    Publication date: December 18, 2003
    Inventors: Wolfgang Strauss, Franz Krug, Fritz Zimmermann, Alfons Abele, Maren Lehmann, Lauric Weber
  • Publication number: 20030094549
    Abstract: The invention relates to an arrangement for at least partially compensating a torque caused by gravitational forces acting on a mass body (2), which is rotatably supported on an axis of rotation (3). The arrangement includes a gas pressure spring (5) for providing a linear force. This linear force is transformed into a torque by means of a converter unit (7). The mass body (2) and the converter unit (7) can be coupled to each other in a way which allows for adjusting the amplitude and the phase of a compensating torque.
    Type: Application
    Filed: November 19, 2002
    Publication date: May 22, 2003
    Inventors: Hartmut Gaertner, Fritz Zimmermann, Wolfgang Strauss
  • Patent number: 5694815
    Abstract: The handle of the handle assembly can be detachably mounted in at least two different orientations relative to a defined apparatus axis. Furthermore, actuating elements of the particular instrument can be reached without difficulty via a suitable cutout in the handle without it being necessary for the operator to significantly change the manual hold on the handle. The handle assembly is especially advantageous on a surgical microscope.
    Type: Grant
    Filed: August 17, 1995
    Date of Patent: December 9, 1997
    Assignee: Carl-Zeiss-Stiftung
    Inventors: Klaus Biber, Fritz Zimmermann
  • Patent number: 4036606
    Abstract: Method and apparatus for cleaning gases, especially those generated by the pressurized gasification of coal, to remove impurities therefrom, especially tar, dust and salts, in which the gases are washed with a liquid, preferably water, in a scrubbing unit and the wash liquid is cleaned to yield a major clean liquid stream which is recycled by a circulating means to the scrubbing unit and a minor impurities concentrate stream from which the impurities are removed, in a separator unit. Preferably the wash liquid is cleaned using a plurality of hydrocyclones which may be arranged in series or in parallel. Optionally the liquid recovered from the impurities concentrate stream is returned to the scrubbing unit, although if the quantity of this liquid is equal to the quantity of liquid required for the de-salting of the wash liquid, no recovered liquid is returned to the scrubbing unit.
    Type: Grant
    Filed: August 29, 1975
    Date of Patent: July 19, 1977
    Assignee: STEAG Aktiengesellschaft
    Inventors: Fritz Zimmermann, Arthur Lenk
  • Patent number: 3996900
    Abstract: A revolving piston combustion engine of trochoid type includes a housing composed of a shell with a multiarcuate inner surface and parallel ends and in which a polygonal piston is disposed to be eccentrically rotatable. Inlet and outlet passages are arranged in the housing. The shell is provided with at least one spark plug, the spark gap of which lies between at least two electrodes near the inner surface of the shell.
    Type: Grant
    Filed: August 20, 1975
    Date of Patent: December 14, 1976
    Assignee: Adui NSU Auto Union Aktiengesellschaft
    Inventors: Karl Feierabend, Armin Bauder, Fritz Zimmermann