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Exhauster fan systems

  • US 5,419,006 A
  • Filed: 12/08/1993
  • Issued: 05/30/1995
  • Est. Priority Date: 03/23/1993
  • Status: Expired due to Fees
First Claim
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1. An exhauster fan system for a road sweeping machine comprising a rotatable fan, drive means, a hydrostatic transmission system coupled between the drive means and a spindle on which the fan is mounted, the output of which transmission system is controlled to apply a constant torque to the fan spindle.

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