Patents by Inventor Karel Hrboticky

Karel Hrboticky 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).

  • Tobacco feed system for cigarette making machine
    Patent number: 4802497
    Abstract: A system for feeding tobacco pneumatically and continuously to a cigarette making machine includes a fan (34,116; 148) which draws air through the machine via a suction band (48) and via one or more screens (96,98) and also serves to draw air through a duct by which tobacco is conveyed to the hopper (10) of the cigarette making machine from a tobacco sending device (12). The interior of the hopper is at subatmospheric pressure. This system avoids the need for an air lock in the hopper.
    Type: Grant
    Filed: December 27, 1987
    Date of Patent: February 7, 1989
    Assignee: Molins PLC
    Inventor: Karel Hrboticky
  • Cigarette maker feeder
    Patent number: 4459999
    Abstract: A novel tobacco feed device (10) and method of use thereof for the direct feed of tobacco to rod formation in a cigarette making machine are described. The device (10) includes a reservoir tube (42) containing a reservoir of opened cut tobacco, metering rolls (54) to meter required amounts of cut tobacco from the reservoir tube (42) to discharge metered tobacco to the cigarette maker. Internal hoppers, carding drums and picker wheels are avoided by the structure of the invention giving rise to greatly enhanced tobacco filling power.
    Type: Grant
    Filed: October 22, 1981
    Date of Patent: July 17, 1984
    Assignee: Rothmans of Pall Mall Canada Limited
    Inventors: Warren A. Brackmann, Karel Hrboticky
  • Tobacco feeding system
    Patent number: 4135615
    Abstract: A tobacco feeding system for feeding tobacco from a source thereof to a plurality of individual cigarette-making machines includes a tobacco distribution system for the distribution of source tobacco sequentially to a plurality of tobacco reservoirs and a tobacco metering system associated with each reservoir for feed of tobacco to the machine feeds. The system avoids the necessity to recycle tobacco to the source and hence minimizes tobacco degradation.
    Type: Grant
    Filed: October 14, 1976
    Date of Patent: January 23, 1979
    Assignee: Rothmans of Pall Mall Canada Limited
    Inventors: Warren A. Brackmann, Karel Hrboticky
  • Method and apparatus for forming packaging structures
    Patent number: 3951049
    Abstract: Method and apparatus are provided to package beer bottles in a reusable tray with a sleeve to be used just once. A blank for the sleeve is wrapped around the tray to grip the side and end walls of the tray and close the open top and cooperating parts of the blank are glued together to provide the finished structure.
    Type: Grant
    Filed: June 5, 1975
    Date of Patent: April 20, 1976
    Assignee: Carling O'Keefe Limited
    Inventors: Warren A. Brackmann, Daniel DiIanni, Arthur K. Bunnell, Karel Hrboticky