Patent ID: 7104290

Claim:
A joint for a fluid pumping apparatus comprising: a body including a trough defined in an upper portion of the body, an insertion longitudinally extending from a lower portion of the body and adapted to be inserted into an opening of a container, a passage defined in and extending through the body to communicate with an interior of the container, and a through hole longitudinally defined in the body and communicating with the interior of the container, wherein the passage is adapted to be connected to a compressed air source and a negative pressure is caused in the container when the compressed air passes through the passage in the body, the passage being T-shaped, the T-shaped passage including a first path laterally extending through the body and a second path communicating with the first path and the interior of the container, the insertion of the body having a hollow stub extending therefrom and communicating with the second path of the passage in the body, the hollow stub having a threaded outer periphery that is provided to connected to an automatic stop device; and a connecting seat including an insertion inserted into the trough in the body and a hollow connector extending from the connecting seat, the hollow connector communicating with the through hole in the body and adapted to be connected to a hose that extends into a pail receiving the fluid for being pumped when the compressed air passing the passage in the body.