Patents by Inventor Max Ruegg

Max Ruegg 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).

  • Apparatus for the controlled ventilation of rooms
    Patent number: 5063962
    Abstract: For the controlled ventilation of a room a duct portion (8) with a quantity control and measurement means is provided in the ventilating duct. The duct portion (8) surrounds a tubular hollow body (25) in the form of a flow body, which has two pressure measuring chambers (29, 30) arranged successively in the flow direction. They are provided with rows of openings (27, 28), which produce a connection to the flow cross-sections with different flow speeds. The quantity is measured by means of a differential pressure measuring device (20), which is connected by means of ducts (32, 33) to the pressure measuring chambers (29, 30). The apparatus has low flow losses and a low flow noise. As a result of its favorable flow guidance the apparatus can be positioned directly adjacent to branches of the ventilation duct.
    Type: Grant
    Filed: July 20, 1990
    Date of Patent: November 12, 1991
    Assignee: Hesco Pilgersteg AG
    Inventors: Heinz Fahrni, Max Ruegg