Patent ID: 7703704

Claim:
A spray gun assembly for spraying viscous media that can be propelled pneumatically or electrically, the spray gun comprising: a gun housing for accommodating a propulsion mechanism comprising components of the spray gun that effect at least one of mixing and metering; a handle projecting from said gun housing; and a reservoir tank removably attachable to said gun housing for holding the medium to be propelled; and means for introducing the medium from said reservoir tank into said housing of the spray gun via a feed duct provided with a riser pipe; wherein said reservoir tank ( 21 ) comprises a storage container attachable to a projection extending from said housing by means of an adapter for retaining said reservoir tank, the projection comprising a selected one of a cover and a plate connected to a selected one of said gun housing by a web and said handle by a web, and said adapter comprises a hollow body enclosing said reservoir tank; and a selected number of inserts disposed in said hollow body; said inserts being selected from inserts provided with different heights and being interlockable to form support of a selected length between said reservoir tank and a selected one of a hollow body wall and a seal.