Patent ID: 8857732

Claim:
A spray gun comprising: a gun body, a nozzle arrangement located on the gun body, a compressed air supply channel located in the gun body coupled to the nozzle arrangement, a valve arrangement to control supply of compressed air to the nozzle arrangement, a regulating device located in the gun body upstream of the valve arrangement for regulation of the supply of compressed air, a pressure measuring device for the sensing and displaying of the pressure in the compressed air supply channel, and a mounting member having an exterior surface fixed to the gun body juxtaposed to the regulating device, the mounting member including a first air channel in communication with the regulated compressed air supply channel and leading to a portion of the exterior surface of the mounting member, and a normally closed valve mounted in the first air channel at the portion of the exterior surface of the mounting member, the pressure measuring device including a mating surface and a second air channel leading from the mating surface of the pressure measuring device to a pressure sensing element, the first and second air channels being axially off-line, and the mounting member and the pressure measuring device having mutually coacting elements to enable manual mounting of the pressure measuring device onto the mounting member with the portion of the exterior surface of the mounting member and the mating surface of the pressure measuring device in engagement, the normally closed valve being open and the first and second air channels being placed in communication, and to enable manual demounting of the pressure measuring device from the mounting member with the normally closed valve being closed, whereby manual demounting of the pressure measuring device does not affect normal operation of the spray gun.