초록 ▼

Dual-action washing gun consisting of two concentric and coaxial tubes (7, 12), the internal one of which operates at high pressure, the initial part of the internal tube being provided with a cylindrical bush (4) having a hole (5) formed in its walls, and an element for shutting off this hole, cons

Dual-action washing gun consisting of two concentric and coaxial tubes (7, 12), the internal one of which operates at high pressure, the initial part of the internal tube being provided with a cylindrical bush (4) having a hole (5) formed in its walls, and an element for shutting off this hole, consisting of a valve member (18) axially slidable in a sealing manner on the bush.

대표청구항 ▼

[ What is claimed is:] [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

[ What is claimed is:] [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.