Patents by Inventor Hans Hyden

Hans Hyden 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).

  • Method of and an installation for removing and transferring refuse
    Patent number: 5078548
    Abstract: The invention relates to a method for removing and transferring refuse from serving trays which on conveyor belts are carried past different stations for removing dirty dishes, removing refuse and washing the trays. According to the invention a vacuum is produced in a suction nozzle provided immediately adjacent the path along which the trays are conveyed, and the refuse is transferred through a transfer duct which is connected to the nozzle and through which the vacuum is produced at the nozzle. The invention also relates to an installation for performing the method.
    Type: Grant
    Filed: October 23, 1989
    Date of Patent: January 7, 1992
    Assignee: AB Centralsug
    Inventors: Hans Hyden, Yngve Forsberg