Frame foaming stay as an aid for foam-filling door frames in wall openings

摘要

Frame foaming stay for foam-filling of door frames in wall openings. This device serves to make the preparatory steps for filling a frame with foam more simple and efficient. The device is distinguished by the fact that it is simply to be placed in the clear passage of a frame and can be fixed in any position. The special mechanism automatically makes the sides of the frame parallel in position. The tendencies of the frame foam to expand are eliminated in the most efficient way.