Illinois Tool Works Inc.
PRESSURE BALANCING DEVICE

Abstract:

Provided is a pressure balancing device, having a mounting seat and a cover, wherein an accommodating cavity is formed between the mounting seat and the cover. The pressure balancing device may also have a partition member, wherein the partition member divides the accommodating cavity into first and second accommodating cavities. The partition member may also include a support portion and an elastic portion, the support portion being disposed on the elastic portion and having a vent hole capable of fluidly communicating the accommodating cavities. The elastic portion is elastically deformable so as to move the support portion relative to the cover. The pressure balancing device may also have a breathable film that is disposed on the support portion and covers the vent hole, and that is movable as the support portion moves.