Apparatus for reducing window breakage by wind pressure

Claim 1

Apparatus for use on a window pane having a frame with opposite sides, the apparatus being used for increasing the positive and negative failure pressure of the window pane when subjected to wind forces, comprising: a rigid bracket having means at each end for affixing to a window frame and positionable to extend from one side to the opposite side of the window frame, the bracket being spaced from the window pane and generally parallel to it and having an opening therein intermediate the ends; a rigid pressure plate body having a forward side and a rearward side, the forward side having an integral peripheral forward extending lip portion, the body having a central opening therethrough, the lip portion providing a flat forward planar contacting surface; a diaphragm of thin flat resilient impervious material of shape and dimension at least equal said pressure plate body peripheral lip portion contacting surface, the diaphragm being positioned between said pressure plate body peripheral lip portion planar conducting surface and the window pane; a bolt received in said pressure plate body opening, the bolt having an inner end and an outer end, the inner end of the bolt being secured to the central portion of said diaphragm and the outer end being received in said opening in said bracket; a nut threaded onto said bolt engaging said rearward side of said pressure plate whereby said diaphragm may be applied against a window pane by engagement with said pressure plate circumferential lip portion and said diaphragm central portion partially withdrawn by said bolt to thereby create a vacuum to secure said diaphragm and said pressure plate to the window pane; and nuts received on said bolt to either side of said bracket, the force exerted by said body peripheral lip portion through said diaphragm serving to resist positive wind pressure on the window pane and the vacuum force applied by said diaphragm serving to resist negative wind pressure on the window pane.