Patent ID: 7048006

Claim:
A material feeding container for two-cylinder thick matter pumps, with an upwardly oriented material input opening ( 30 ), two feed cylinder openings ( 34 ) arranged in the front wall ( 36 ) of the container, and a transfer tube having the shape of an S-tube ( 42 ), which is arranged inside the container with its input end ( 48 ) swiveling in an alternating manner in front of the feed cylinder openings ( 34 ) and mounted on the output side in a feed-through opening ( 46 ) of the rear wall ( 38 ) of the container that is arranged above the feed cylinder openings and in communication with a pressure pipe ( 40 ) is connected to the outer side of the rear wall ( 38 ) of the container, the output side ( 44 ) of the S-pipe ( 42 ) communicating with said pressure pipe, thereby characterized, that a maintenance opening ( 56 ) is arranged on the rear wall ( 38 ), which is formed by an opening defined by a peripheral edge ( 58 ), that the maintenance opening ( 56 ) can be closed with a cover plate ( 60 ), which has a top cover plate part ( 64 ) that is oriented perpendicular to the swiveling axis ( 50 ) of the S-pipe ( 42 ) and includes the feed-through opening ( 46 ) for the S-pipe ( 42 ) and a bottom cover plate part ( 68 ) that forms an inclined bottom part and that is connected to said top part substantially parallel to an S-pipe segment ( 66 ) extending obliquely downward.