Abstract: A material spraying machine is disclosed herein, for example, as the machine may be used to spray flock material. In an example, the material spraying machine includes a hopper configured to hold a material to be sprayed. An agitator in the hopper moves the material from the hopper into an airlock. Vanes in the airlock move the material into an airstream generated by the blower, wherein the material is discharged through an outlet without coming into contact with a blower. The machine is described herein for purposes of illustration as it may be used to spray flock material. However, the machine may have other applications and be used in other industries, including but not limited to, blow-in insulation, confetti, mulch, glitter, etc.

Abstract: An upwardly opening shallow tray is provided constructed of shape retentive and at least somewhat deformably resilient material. The tray includes a bottom wall and upstanding peripheral walls extending about and projecting upwardly from the outer periphery of the bottom wall. An upright post is also provided including upper and lower end portions and the lower end portion is diametrically enlarged and includes a generally planar under surface downwardly abutted against the central area of the upper surface of the bottom. The post under surface includes a plurality of generally concentric and circular sealing ridges of different diameters projecting slightly downwardly therefrom forcibly, downwardly and sealingly seated against and deforming opposing portions of the upper surface of the bottom wall to form a fluid-tight seal therewith.