Cam-type locking device for retaining static filter panels in a filter holding frame

摘要

A filter holder assembly includes at least one frame having a peripheral wall and an inwardly directed peripheral edge substantially perpendicular to said peripheral wall and adapted to support a filter. At least one cam lock lever is secured to the peripheral wall at a first predetermined distance from the inwardly directed peripheral edge for compressing the filter in the frame and against said inwardly directed peripheral edge. The cam lock lever has a handle portion at one end thereof and a cam head provided with a cam foot at an opposite end thereof. The cam lock lever is rotatable to cause the cam foot to move between an open position and clamping position where the cam foot exerts a compressive force on the filter.