Patent ID: 9359153
Filing Date: 2016-06-07
CPC Classification: B65G

Claim Text:
1. A grain bin vacuum tube extension system comprising: (a) an extension tube comprising a bottom surface and a plurality of slots on the bottom surface of the extension tube; (b) a rubber seal that is slidably secured to the bottom surface of the extension tube and that comprises a plurality of slots, wherein the rubber seal is slidably secured to the bottom surface of the extension tube such that the slots on the bottom surface of the extension tube align with the slots in the rubber seal when the rubber seal is slid to an open position; and (c) a butterfly valve that is configured to close when the slots on the bottom surface of the extension tube are aligned with the slots in the rubber seal and to open when the slots on the bottom surface of the extension tube are not aligned with the slots in the rubber seal; (d) an outlet tube that extends through a wall in a grain bin; and (e) an over-center band clamp that connects the extension tube to the outlet tube.