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Suction hose with conductor means for electrical current

  • US 3,965,526 A
  • Filed: 11/12/1973
  • Issued: 06/29/1976
  • Est. Priority Date: 11/16/1972
  • Status: Expired due to Term
First Claim
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1. A suction hose for a cleaning apparatus provided with an electrically driven vacuum pump and a separate suction head with electrically actuated cleaning brush means, comprising:

  • a substantially air-tight flexible external tube;

    a flexible inner tube, substantially coaxial with said external tube and spaced therefrom;

    electrical conductor means interposed between said external and said inner tubes and aligned substantially with the axes of said tubes; and

    connector means for interconnecting the actuator for said cleaning brush means with the electrical power supply for said vacuum pump drive through said electrical conductor means.

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