Patents by Inventor Marek Hajtman

Marek Hajtman 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).

  • Air-splicing device for splice-connecting two glass fiber roving strands and process of splice-connecting same
    Patent number: 7870714
    Abstract: An Air-splicing device for splice-connecting two glass-fiber roving strands (1, 3), comprises a strand channel (6) open at its two opposing ends (7, 8), two splice chambers (9, 10) arranged side-by-side in said strand channel, at least three strand clamps (13, 14, 15, 16) two of which are outer strand clamps (13, 15) arranged at either side outside of said two splice chambers and at least one of which is an inner strand clamp (14, 16) arranged between said two splice chambers, and two strand cutters (17, 18) arranged at the opposite ends of the strand channel. Said first and second splice chambers are feedable with pressurised air independently of each other.
    Type: Grant
    Filed: December 4, 2008
    Date of Patent: January 18, 2011
    Assignee: Johns Manville
    Inventors: Dusan Sikula, Marek Hajtman, Frantisek Sabo
  • AIR-SPLICING DEVICE FOR SPLICE-CONNECTING TWO GLASS FIBER ROVING STRANDS AND PROCESS OF SPLICE-CONNECTING SAME
    Publication number: 20090139197
    Abstract: An Air-splicing device for splice-connecting two glass-fiber roving strands (1, 3), comprises a strand channel (6) open at its two opposing ends (7, 8), two splice chambers (9, 10) arranged side-by-side in said strand channel, at least three strand clamps (13, 14, 15, 16) two of which are outer strand clamps (13, 15) arranged at either side outside of said two splice chambers and at least one of which is an inner strand clamp (14, 16) arranged between said two splice chambers, and two strand cutters (17, 18) arranged at the opposite ends of the strand channel. Said first and second splice chambers are feedable with pressurised air independently of each other.
    Type: Application
    Filed: December 4, 2008
    Publication date: June 4, 2009
    Inventors: Dusan Sikula, Marek Hajtman, Frantisek Sabo