Abstract: A hopper for feeding previously-mixed virgin and crushed plastic materials into the throat of a barrel of an injection unit of a plastic injection molding machine, the hopper comprising a rotating auger extending longitudinally preferably in the center of the hopper from an upper area to a lower area within the hopper. The rotating auger rotates in the same direction as the flights of the auger such that the auger's flights continuously lift up the materials from the bottommost area of the hopper to an upper area of the hopper, thereby minimizing the coagulation of the materials in the lower areas of the hopper.

Abstract: A suspended ceiling support system is formed of a grid having main runners (12) interconnected by cross runners (16) extending at right angles to the main runners and abutting the main runners at runner intersections. The cross runners are firmly and fixedly interconnected to one another and to the interposed main runner by means of a single connector clip (20) of uniform height throughout its length. The connector clip has end plates (120,124) that connect to opposite sides of the webs (34,144) of respective cross runners and an integral angulated intermediate section (140) extending through a vertical slot (110) in the main runner web (106). The cross runners are formed with opposing channels (40,52,42,54) that slidably receive upper and lower edges of the connector clip and each cross runner web has a hole (99) to receive a locking tongue (126,128) on the clip. Thus a single connector clip firmly and fixedly connects ends of two cross runners to each other and to the interposed main runner.