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Industrial vacuum apparatus

  • US 4,246,675 A
  • Filed: 07/27/1979
  • Issued: 01/27/1981
  • Est. Priority Date: 07/27/1979
  • Status: Expired due to Term
First Claim
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1. Industrial scale vacuum cleaning apparatus comprising, in combination:

  • (a) an elongated hose having intake and outlet ends;

    (b) manually engageable handle means connected to said intake end of said hose;

    (c) a rotatable drum upon which said hose may be wound and unwound;

    (d) receptacle means with which said outlet end of said hose communicates, for receiving and containing material passing through said hose;

    (e) blower means communicating with said receptacle means for creating a vacuum to draw material through said hose from said intake end to said outlet end and thence to said receptacle means;

    (f) at least three resilient roller members mounted for rotation about axes in a common plane and having peripheries tangent to a circle substantially equal in circumference to said hose;

    (g) said hose passing through said plane with its longitudinal axis normal thereto and frictionally engaged on its outer surface by each of said roller members;

    (h) reversible motor means for imparting rotation to all of said roller members at the same speed in either direction for selectively moving said hose toward or away from said drum; and

    (i) control means mounted upon said handle means for selective actuation by an operator thereof for causing movement of said motor means in either direction.

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