Patents Assigned to Eckhard Kellner
  • High vacuum pump system
    Patent number: 4089185
    Abstract: The invention provides a high vacuum pump system of high pumping speed in which the surfaces that are to be cooled are coated with adsorbents in such a manner that it is possible to bale out and activate the coatings at temperatures between 250.degree. and 400.degree. C and then to use them for the maintenance or repeated generation of high vacua containing no hydrocarbons down to pressures as low as about 10.sup.-8 torrs.
    Type: Grant
    Filed: October 30, 1975
    Date of Patent: May 16, 1978
    Assignee: Eckhard Kellner
    Inventors: Josef Kemmer, Eckhard Kellner