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Axially-operated dual-action washing gun

  • US 6,016,975 A
  • Filed: 05/01/1998
  • Issued: 01/25/2000
  • Est. Priority Date: 07/31/1997
  • Status: Expired due to Fees
First Claim
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1. A dual-action washing gun operable in two pressure modes including a high-pressure mode and a low-pressure mode, the gun being insertable downstream of a piping from a hydrocleaner;

  • the gun comprising;

    a portion coupling to the piping supplied by a hydrocleaner;

    a spout at an end of the gun opposite the coupling;

    a trigger-operating shut-off valve disposed between the spout and a coupling to the piping supplied by a hydrocleaner;

    an outer tube (12);

    an internal tube (7) suppliable at high pressure and concentric with the outer tube, the internal tube including, adjacent the coupling, a cylindrical first bush (4);

    the first bush including at least one radial hole (5);

    a second bush axially slidable in a sealed manner on the first bush and further comprising a valve member (18) for shutting off the radial hole.

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