Patents by Inventor Karl-Friedrich Kammhoff

Karl-Friedrich Kammhoff 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: 7112046
    Abstract: The invention relates to a compressor for refrigerant, comprising: an outer housing; a scroll compressor which is disposed in the outer housing; an outlet, which is located in the base of the stationary compressor body and which leads to a high pressure chamber in the outer housing, and; a check valve, which has a valve body and which is disposed between the outlet and the high pressure chamber. The aim of the invention is to improve a compressor of the type described at the beginning in such a way as to ensure that the function of the check valve is as optimal as possible. To this end, the invention provides that the outlet having a center axis which is offset with respect to a center axis of the valve seat for the valve body in a transverse direction in relation to the center axis.
    Type: Grant
    Filed: April 11, 2005
    Date of Patent: September 26, 2006
    Assignee: Bitzer Kuehlmaschinenbau GmbH
    Inventors: Karl-Friedrich Kammhoff, Thomas Varga
  • Patent number: 6960070
    Abstract: In order to improve a compressor for refrigerant, comprising an outer housing, a scroll compressor arranged in the outer housing and having a first compressor member arranged stationarily in the outer housing and a second compressor member which is movable relative to the first compressor member, the compressor members each having a base and first and second scroll ribs, respectively, which rise above the respective base and engage in one another such that the second compressor member is movable relative to the first compressor member on an orbital path about a central axis for the purpose of compressing the refrigerant, a drive unit for the second compressor member having an eccentric drive, a drive shaft, a drive motor arranged in a motor housing and having drawn-in refrigerant flowing around it as well as a bearing unit for the drive shaft which comprises a first bearing member connected to the outer housing, in such a manner that the refrigerant drawn in by the scroll compressor is free from lubricating o
    Type: Grant
    Filed: October 8, 2003
    Date of Patent: November 1, 2005
    Assignee: Bitzer Kuehlmaschinenbau GmbH
    Inventors: Karl-Friedrich Kammhoff, Gernot Balz, Christian Scharer
  • Publication number: 20050232800
    Abstract: The invention relates to a compressor for refrigerant, comprising: an outer housing; a scroll compressor which is disposed in the outer housing; an outlet, which is located in the base of the stationary compressor body and which leads to a high pressure chamber in the outer housing, and; a check valve, which has a valve body and which is disposed between the outlet and the high pressure chamber. The aim of the invention is to improve a compressor of the type described at the beginning in such a way as to ensure that the function of the check valve is as optimal as possible. To this end, the invention provides that the outlet having a center axis which is offset with respect to a center axis of the valve seat for the valve body in a transverse direction in relation to the center axis.
    Type: Application
    Filed: April 11, 2005
    Publication date: October 20, 2005
    Applicant: Bitzer Kuehlmaschinenbau GmbH
    Inventors: Karl-Friedrich Kammhoff, Thomas Varga
  • Publication number: 20040126261
    Abstract: In order to improve a compressor for refrigerant, comprising an outer housing, a scroll compressor arranged in the outer housing and having a first compressor member arranged stationarily in the outer housing and a second compressor member which is movable relative to the first compressor member, the compressor members each having a base and first and second scroll ribs, respectively, which rise above the respective base and engage in one another such that the second compressor member is movable relative to the first compressor member on an orbital path about a central axis for the purpose of compressing the refrigerant, a drive unit for the second compressor member having an eccentric drive, a drive shaft, a drive motor arranged in a motor housing and having drawn-in refrigerant flowing around it as well as a bearing unit for the drive shaft which comprises a first bearing member connected to the outer housing, in such a manner that the refrigerant drawn in by the scroll compressor is free from lubricating o
    Type: Application
    Filed: October 8, 2003
    Publication date: July 1, 2004
    Applicant: Bitzer Kuehlmaschinenbau GmbH
    Inventors: Karl-Friedrich Kammhoff, Gernot Balz, Christian Scharer