Patents Assigned to Temet OY.
  • Noise absorber for air or gas flows
    Patent number: 4109754
    Abstract: A noise absorber for air or gas flows, which comprises a flow channel provided at opposite ends with flow inlet and outlet connections. One pair of opposite walls of the flow channel extends concavely and the other pair of opposite walls extends convexly from the inlet connection to the outlet connection. The flow channel is positioned in a surrounding box. Closed hollow spaces are formed between each wall of the flow channel and the opposite wall of the box, which spaces form compartments acting as resonator and/or absorption mufflers.
    Type: Grant
    Filed: January 14, 1977
    Date of Patent: August 29, 1978
    Assignee: Temet OY.
    Inventor: Matti Purhonen