FIREMAN'S APPARATUS Russian patent published in 2011 - IPC A62C31/00 

FIELD: fire-fighting means.

SUBSTANCE: apparatus comprises a body with a handle, an input coupled head and an output spray angle control head, an in-built water stabiliser connected by a rod with a disk valve, a flow blockage and flow adjustment mechanism comprising a handle and a roller mounted on a ring and coupled by progressive rotation through a guide path in the body with a flow bushing comprising two separated portions: a manually adjusted flow bushing and an automatically adjusted flow bushing first of which is coupled by progressive rotation through the guide path in the body with the handle and a roller mounted on a ring, while the second one is coupled with the automatic flow regulator representing a compression spring coupled on the other side with the body through a pressure regulator bushing coupled by progressive rotation through the guide path in the body with the roller mounted on a pressure condition selection ring.

EFFECT: invention provides enhanced bore, more effective fire extinguishing and control responsiveness, as well as reduced injury risk by lower jet reaction on a nozzle operator due to the fact that manual flow regulation is combined with automatic flow adjustment and selection of working pressure condition corresponding to supply main pressure.

2 dwg