Patents by Inventor Endre Gulyas

Endre Gulyas 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: 5091355
    Abstract: A Raney catalyst composition which has ice as a solid carrier. The reaction involving the Raney catalyst of the invention is carried out by portionwise adding a Raney catalyst containing ice as solid carrier to the reaction mixture. The operation-safe cylindrical or angular vessel used for the storage and/or handling of the Raney catalyst has a conical casing or side walls joining to the bottom through a bend radius of greater than 0.5 mm. The vessel is covered by a tightly closing cap.
    Type: Grant
    Filed: September 21, 1990
    Date of Patent: February 25, 1992
    Assignee: Richter Gedeon Vegyeszeti Gyar Rt.
    Inventors: Imre Godla, Jozsef Foldesi, Istvan Polgar, Endre Gulyas, Istvan Gebhardt, Janos Kiss, Karoly Molnar, Andras Sugar, Pal Angyal, Ferenc Konok, Zoltan Marina
  • Patent number: 5048847
    Abstract: The invention relates to a stuffing box for the sealed passage of a shaft with undesirable deflection through connecting branch, provided with a casing, a stuffing box sland containing packing rings, as well as with a tubular spring compensator, one end of which is rigidly and releasably engaged with the connecting branch, the other end with the casing of the stuffing box. At least one guide bush (10) is arranged in the casing (8) centering the stuffing box (7) to the shaft (2). This guide bush can be arranged between the packing rings (9, 9a) and over (11) of the casing, and it is made of material, suitably of bearing material with low friction coefficient.
    Type: Grant
    Filed: June 27, 1990
    Date of Patent: September 17, 1991
    Assignee: Richter Gedeon Vegyeszeti Gyar RT
    Inventors: Gyula Kovacs, Endre Gulyas