Patents Represented by Attorney David Adour
  • Patent number: 4655610
    Abstract: A method for vacuum impregnation of sintered materials, preferably vacuum impregnation of sintered bearings parts, with dry lubricants is disclosed. The impregnation is performed in the following way. The cleaned parts to be impregnated are placed in a glass basin containing a mixture of, for example, molybdenum disulphide and graphite, a thermosetting resin, a solvent and a thermosetting resin extender. The glass basin is placed in a vacuum chamber and the vacuum chamber is then vacuum pumped for a sufficiently long time in order to evacuate the air from the pores of the sintered parts. After that air is again let in into the vacuum chamber until normal air pressure is reached. The sintered parts are taken out and are allowed to air dry. The coating is then cured.
    Type: Grant
    Filed: November 22, 1985
    Date of Patent: April 7, 1987
    Assignee: International Business Machines Corporation
    Inventor: Mohammed Y. Al-Jaroudi