Patents by Inventor Ivo Chládek

Ivo Chládek 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).

  • Roller assembly for a railway switch
    Patent number: 9309629
    Abstract: A roller assembly for facilitating movement of a switch rail between two positions. In one embodiment, the roller assembly includes a frame adapted for attachment to the switch rail and having a pocket formed therein, and an elastomer assembly, at least a portion of which is slidably disposed within the pocket. The elastomer assembly includes a roller wheel and an elastomeric block. The roller wheel travels along the surface of a tie plate when the switch rail is moved between positions. The elastomeric block is adapted to compress under a load applied to the switch rail in the direction of the tie plate, causing the roller wheel to retract in the direction of the pocket. When the weight of a train is exerted on the roller assembly, the compression of the elastomeric block causes the train to ride fully on the rails, just as if the roller assembly were not present. When no weight is exerted on the roller assembly, the roller assembly assists the switch to move freely between positions.
    Type: Grant
    Filed: April 3, 2013
    Date of Patent: April 12, 2016
    Assignees: IAT International, Inc., EKOSLIDE s.r.o.
    Inventors: Avraham Ashkenazi, Seth Fleishman, Ivo Chládek, Václav Suchan, Radek Lucovi{hacek over (c)}
  • ROLLER ASSEMBLY FOR A RAILWAY SWITCH
    Publication number: 20130327243
    Abstract: A roller assembly for facilitating movement of a switch rail between two positions. In one embodiment, the roller assembly includes a frame adapted for attachment to the switch rail and having a pocket formed therein, and an elastomer assembly, at least a portion of which is slidably disposed within the pocket. The elastomer assembly includes a roller wheel and an elastomeric block. The roller wheel travels along the surface of a tie plate when the switch rail is moved between positions. The elastomeric block is adapted to compress under a load applied to the switch rail in the direction of the tie plate, causing the roller wheel to retract in the direction of the pocket. When the weight of a train is exerted on the roller assembly, the compression of the elastomeric block causes the train to ride fully on the rails, just as if the roller assembly were not present. When no weight is exerted on the roller assembly, the roller assembly assists the switch to move freely between positions.
    Type: Application
    Filed: April 3, 2013
    Publication date: December 12, 2013
    Inventors: Avraham Ashkenazi, Seth Fleishman, Ivo Chládek, Václav Suchan, Radek Lucovic
  • Roller assembly for a railway switch
    Patent number: 8430364
    Abstract: A roller assembly for facilitating movement of a switch rail between two positions. In one embodiment, the roller assembly includes a frame adapted for attachment to the switch rail and having a pocket formed therein, and an elastomer assembly, at least a portion of which is slidably disposed within the pocket. The elastomer assembly includes a roller wheel and an elastomeric block. The roller wheel travels along the surface of a tie plate when the switch rail is moved between positions. The elastomeric block is adapted to compress under a load applied to the switch rail in the direction of the tie plate, causing the roller wheel to retract in the direction of the pocket. When the weight of a train is exerted on the roller assembly, the compression of the elastomeric block causes the train to ride fully on the rails, just as if the roller assembly were not present. When no weight is exerted on the roller assembly, the roller assembly assists the switch to move freely between positions.
    Type: Grant
    Filed: November 29, 2011
    Date of Patent: April 30, 2013
    Assignees: Eco-Production Vresova Spol. S R O, IAT International, Inc.
    Inventors: Avraham Ashkenazi, Seth Fleishman, Ivo Chládek, Václav Suchan, Radek Lucovi{hacek over (c)}