Patents by Inventor Hans Peter Glud Nylykke

Hans Peter Glud Nylykke 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: 4099729
    Abstract: The invention relates to a backstop ring for a stuffing box or the like which is cooperable with a carbon sealing ring. The main parts of a stuffing box are normally the stationary backstop ring and the carbon slide ring which rotates with the shaft. These two rings have mutually engaging sealing surfaces. The sealing surface of the stationary backstop ring is ground in a manner to form scratches which are orientated to create a radially outward pumping effect. The flatness of the ground surface has an overall variation of less than six microns and preferably is between 2 and 5 microns. The scratches have a roughness between 0.2 and 2 microns. For scratches on the order of 1 to 2 microns the surface is phosphatized.
    Type: Grant
    Filed: August 12, 1977
    Date of Patent: July 11, 1978
    Assignee: Danfoss A/S
    Inventor: Hans Peter Glud Nylykke