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Lead Septum/Foam Scroll for Centrifugal Fans Disclosure Number: IPCOM000035146D
Original Publication Date: 1989-Jun-01
Included in the Prior Art Database: 2005-Jan-28

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Gaunt, DS [+details]


Aerodynamic noise from centrifugal fans is reduced with a minimum loss of fan performance by use of a modified fan scroll. The device permits standard centrifugal fans to be operated at lower noise levels or higher speeds with increased air flow but without proportional increase in noise.