Patents by Inventor Roland Tischer

Roland Tischer 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).

  • Slit cage, particularly for needle bearings
    Patent number: 5044787
    Abstract: A cage, particularly for needle bearings, is an annular ring of springy cage material and has a slit extending completely through the cage. The opposed, separated ends of the cage at the slit are joined by a pair of elastic connecting arms which are each approximately of V-shape and having vertices which extend axially and either face toward each other or face away from each other, which permits circumferential shifting and inhibits relative axial shifting of the separated cage ends and prevents overlap at the cage ends.
    Type: Grant
    Filed: January 8, 1990
    Date of Patent: September 3, 1991
    Assignee: FAG Kugelfischer Georg Schafer (KGaA)
    Inventors: Georg Hupfer, Johann Vitzthum, Roland Tischer
  • Journal mounting for the shaft of a water pump or the like
    Patent number: 4244630
    Abstract: A pump shaft is journaled in a housing through the intermediary of two metal rings forming the outer races of a ball bearing and a roller bearing whose rotary bodies are in direct contact with the shaft. The two bearing rings, which are relatively axially shiftable during assembly, are interconnected by a sleeve preferably of synthetic resin which they engage with a snap fit. The outer diameter of the sleeve is less than that of either ring; the two outer ring diameters may also differ in size from each other.
    Type: Grant
    Filed: September 17, 1979
    Date of Patent: January 13, 1981
    Assignee: Fag Kugelfischer Georg Schafer & Co.
    Inventor: Roland Tischer