Patent ID: 9091116
Filing Date: 2015-07-28
Classification: E06B

Abstract:
1. A mull binder for coupling a first window frame and a second window frame comprising: a mull binder having a first arm and a second arm, the first arm being coupled to the second arm, the first arm being movable relative to the second arm from a first installation position to a second in-use position, the first and second arms including a plurality of flexible barbs configured to be received within a groove of the first window frame and the second window frame respectively, the mull binder coupling the first window frame and the second window frame together and providing a seal between the first window frame and the second window frame, the first window frame being movable relative to the second window frame after the first arm is coupled to the first window frame and the second arm is coupled to the second window frame, where the first window frame and the second window frame are not parallel to one another in the first installation position and the first window frame and the second window frame being parallel to one another in the second in-use position; wherein the mull binder includes a base and the first arm and the second arm are pivotally coupled to the base with a living hinge, each arm having an L-shape with a first leg portion and a second leg portion, the plurality of barbs extending from the second leg portion, the first leg portion and second leg portion are formed of a first material being more rigid than the living hinges and the flexible barbs; wherein the barbs extend from the second leg portion and include a first pair of barbs proximate a terminal end of the second leg portion and a second pair of barbs extending from the second leg portion at a location between the first pair of barbs and the first leg portion, each barb of the first pair of barbs and second pair of barbs extend from opposite sides of the second leg portion.