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Modular ventilating exhaust fan assembly and method

  • US 7,455,500 B2
  • Filed: 12/06/2005
  • Issued: 11/25/2008
  • Est. Priority Date: 11/21/2003
  • Status: Expired due to Fees
First Claim
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1. A ventilation exhaust fan comprising:

  • a housing having a fluid inlet opening through which fluid is received within the housing and a fluid outlet through which fluid exits the housing, the housing adapted to interchangeably receive, through the fluid inlet opening,a first module having a first support plate; and

    a second module having a second support plate, each of the first and second modules having a motor and a fan wheel operable to generate a flow of fluid out of the fluid outlet;

    wherein at least one of the fan wheel and the motor of the first module has a performance characteristic different than at least one of the fan wheel and the motor of the second module, respectively.

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