Patents by Inventor Laszlo Ajtai

Laszlo Ajtai 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).

  • Actuating device for pipe-chamber feeders of hydraulic transport equipments
    Patent number: 4869460
    Abstract: An actuating device for pipe-chamber feeders of hydraulic transport equipments comprising valves or other closing appliances having a closing element that is movable reciprocally between an open and a closed position, the improvement being characterized in said closing element being associated with at least one speed control means, especially a speed reducing means acting at least at the end phase of the closing stroke of said closing element.The speed reducing effect of at least one of said speed control means may be adjustable.
    Type: Grant
    Filed: August 28, 1987
    Date of Patent: September 26, 1989
    Assignees: Heves Megyei Tanacsi Epitoipari Vallalat, Kozponyi Banyaszati Fejlesztesi Intezet
    Inventors: Laszlo Kocsanyi, Karoly Illes, Laszlo Ajtai
  • Actuating device for pipe-chamber feeders of hydraulic transport equipment
    Patent number: 4865492
    Abstract: The invention relates to an actuating device for pipe-chamber feeders of hydraulic transport equipment, the latter having main closing appliances, auxiliary closing appliances and a high-pressure pump. The novel feature is that a dashpot or other pressure storing unit is installed in a pressure equalizer pipe interconnecting the high-pressure pure-water pipe of the pump with the auxiliary closing appliances and in the dashpot the carrier liquid is in direct or indirect contact with a gas or air cushion.
    Type: Grant
    Filed: July 1, 1987
    Date of Patent: September 12, 1989
    Assignees: Kozponti Banyaszati Fejlesztesi Intezet, Heves Megyei Tanacsi Epitoipari Vallalat
    Inventors: Laszlo Kocsanyi, Karoly Illes, Laszlo Ajtai