Patents Assigned to Advanced Design & Manufacture Limited
  • Thermally efficient room ventilator
    Patent number: 4799539
    Abstract: A room ventilator for insertion within a wall of window of the room comprises two fans mounted side by side, and a heat exchanger located inwardly of the fans. The construction of the heat exchanger is such that counter flow heat exchange occurs between the incoming and outgoing air streams.
    Type: Grant
    Filed: June 1, 1987
    Date of Patent: January 24, 1989
    Assignee: Advanced Design & Manufacture Limited
    Inventors: Howard S. Atkin, Christopher J. Palmer