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Particle suction systems

  • US 4,102,083 A
  • Filed: 10/14/1976
  • Issued: 07/25/1978
  • Est. Priority Date: 10/16/1975
  • Status: Expired due to Term
First Claim
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1. A normally hand-held pneumatic machine tool and connecting conduit arrangement, including:

  • a pneumatic machine tool including a housing, said housing containing;

    a pneumatic motor connectable with a tool for operating the same;

    socket means;

    a dust particle suction duct arranged to suck off particles formed while said tool is engaged with a work piece, one end of said suction duct opening into said socket means; and

    an air supply duct connected at one end thereof with said pneumatic motor, the other end of said air supply duct opening into said socket means, said air supply duct leading directly to said pneumatic motor from said socket means and being unobstructed therebetween;

    a quick coupling device arranged to be connectable with and disconnectable from said socket means;

    a suction conduit connected with said quick coupling device, and arranged to be connectable thereby to said suction duct within said socket means;

    an air supply conduit connected with said quick coupling device; and

    a valve device carried by said quick coupling device and connected with said air supply conduit, said valve device being operable for controlling the flow of air from said air supply conduit;

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