| 20120073771 | Screen retention assembly - A retention assembly for securing an edge portion of a screen to a surround arrangement is disclosed where the surround arrangement includes a receiving channel to receive the edge portion of the screen and the receiving channel is formed by first and second opposed wall portions. The retention includes an engagement member to secure the received edge portion of the screen in the receiving channel, the engagement member having a substantially planar surface and an opposed wedging surface, wherein on insertion of the engagement member into the receiving channel, the wedging surface of the engagement member bears against a complementary wedging surface on the first wall portion of the receiving channel to capture and secure the edge portion between the second wall portion of the receiving channel and the substantially planar surface of the engagement member, and wherein upon further insertion of the engagement member into the receiving channel the engagement member releases to allow the edge portion to be removed from the receiving channel. | 03-29-2012 |
