Patents by Inventor Thomas Valdemar Bentsen

Thomas Valdemar Bentsen 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).

  • Patent number: 4108498
    Abstract: A garbage suction system having a number of chutes connected to a common horizontal main transport duct, leading to a collection centre having a suitable air suction means, is provided with specially constructed air inlet valves at selected locations. Each chute is provided with a fork type obstruction at the bottom to loosely suspend the garbage, and the air inlet valves are located in the main transport duct at locations such that at least one chute is between the valve and the suction means. In operation a valve will first sense the suction effect and open the transport duct to the atmosphere, thereby providing a sufficient pressure drop across the garbage loosely suspended in a chute so as to cause the restrained garbage to be sucked away. The valve is provided with an automatic closing means so that the operating sequence may be then repeated.
    Type: Grant
    Filed: March 22, 1976
    Date of Patent: August 22, 1978
    Assignee: Bruun & Sorensen A/S
    Inventor: Thomas Valdemar Bentsen