Abstract: A bird screen is provided having a post assembly and a feeder assembly. The post assembly has a ground spike and a first support pipe is disposed internal to the ground spike. A second support pipe is disposed in the first support pipe and the second support pipe has a locking collar that supports the bird feeder assembly. The bird feeder assembly has a frame that is supported by the locking collar. The second support pipe extends through the frame and a screen and a bird feeder cover and into a birdfeeder to secure the birdfeeder in place. The feeder assembly has first, second, third and fourth support posts, and has first, second, third and fourth feeder sidewalls at least one of which is connected to the frame with hinges and is movable between up and down positions. In another embodiment the bird screen includes a barrier assembly.

Abstract: A bird screen is provided having a post assembly and a feeder assembly. The post assembly has a ground spike and a first support pipe is disposed internal to the ground spike. A second support pipe is disposed in the first support pipe and the second support pipe has a locking collar that supports the bird feeder assembly. The bird feeder assembly has a frame that is supported by the locking collar. The second support pipe extends through the frame and a screen and a bird feeder cover and into a birdfeeder to secure the birdfeeder in place. The feeder assembly has first, second, third and fourth support posts, and has first, second, third and fourth feeder sidewalls at least one of which is connected to the frame with hinges and is movable between up and down positions on hinges.

Abstract: A bird screen is provided having a post assembly and a feeder assembly. The post assembly has a ground spike and a first support pipe is disposed internal to the ground spike. A second support pipe is disposed in the first support pipe and the second support pipe has a locking collar that supports the bird feeder assembly. The bird feeder assembly has a frame that is supported by the locking collar. The second support pipe extends through the frame and a screen and a bird feeder cover and into a birdfeeder to secure the birdfeeder in place. The feeder assembly has first, second, third and fourth support posts, and has first, second, third and fourth feeder sidewalls at least one of which is connected to the frame with hinges and is movable between up and down positions on hinges.

Abstract: The present invention concerns a screw for moving plastic through a barrel in a direction of flow from a drive to a tip. The screw has a shaft having opposing first and second ends, a drive located on the first end of the shaft, a tip located on the second end of the shaft, and a flight helically extending around the shaft. The shaft also has a section of decreasing diameter in the flow direction and a section of increasing in diameter in the flow direction.

Abstract: The present invention concerns a screw for moving plastic through a barrel in a direction of flow from a drive to a tip. The screw has a shaft having opposing first and second ends, a drive located on the first end of the shaft, a tip located on the second end of the shaft, and a flight helically extending around the shaft. The shaft also has a section of decreasing diameter in the flow direction and a section of increasing in diameter in the flow direction.