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Damage resistant recirculation flap

  • US 5,276,933 A
  • Filed: 07/02/1992
  • Issued: 01/11/1994
  • Est. Priority Date: 07/02/1992
  • Status: Expired due to Term
First Claim
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1. In a sweeping machine having a cylindrical brush that rotates around a horizontal axis, a means for mounting a recirculation flap behind the cylindrical brush with the recirculation flap being attached to a portion of the mounting means, and with the recirculation flap and the mounting means being attached to the structure of the sweeping machine by one or more pivotal connections and held in normal operating positions by resilient means, characterized in that the pivotal connections are essentially above and forward of that portion of the mounting means to which the recirculation flap is attached whereby contact with a floor obstacle causes the recirculation flap to rotate in an arc upwardly and rearwardly away from said floor obstacle.

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