Patents by Inventor Achim Hirsemann

Achim Hirsemann 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: 4426022
    Abstract: A device for dispensing measured amounts of a single-component or multi-component substance, such as an adhesive material, a sealing material or a filler material, includes a container holding the substance. A cartridge of propellant gas is positioned within the container and is arranged to supply the propellant gas into contact with a piston which is displaceable in the container for dispensing the substance.
    Type: Grant
    Filed: August 18, 1981
    Date of Patent: January 17, 1984
    Assignee: Hilti Aktiengesellschaft
    Inventors: Gusztav Lang, Achim Hirsemann