| 摘要 |
<p>An improved thermal barrier of one-piece construction which is adapted to provide a locking and hermetically sealing joint between two aluminum window sections. The thermal barrier comprises an outer wall and an inner wall extending substantially parallel to the outer wall and spaced apart therefrom. A rear wall and a stepped wall interconnect the outer wall and the inner wall, the stepped wall being spaced apart from the rear wall, A front wall is spaced apart from an adjacent portion of the stepped wall, with the front wall and the adjacent portion of the stepped wall defining an elongated channel portion. A first projection extends from the outer wall toward the inner wall, the first projection being spaced outwardly from the rear wall and converging toward the rear wall. The first projection and an adjacent portion of the rear wall define a channel therebetween. A second projection extends away from a rear surface of the rear wall toward the outer wall, the second projection having an outer edge spaced apart from the first projection and terminating at a location within the channel defined between the rear wall and the first projection.</p> |
