FILTER Russian patent published in 1996 - IPC

FIELD: cleaning of working fluids and gases; pneumohydraulic and fuel system of various power plants. SUBSTANCE: filter has filter element which consists of two telescopic parts; one part is fixed in housing and other part entering it is secured by its outlet end in movable spring- loaded rod axially movable in bush of sleeve which rests against end of cylindrical bore of housing. Movable rod has blind hole which is perpendicular to its axis which receives spring-loaded pin. This pin is received by hole of bush and locks rod or filter elements at maximum chocking of filter. Rubber sealing rings are secured on free ends of filter elements. EFFECT: enhanced efficiency. 3 cl, 1 dwg