Abstract: The present invention is a compact exercise apparatus that includes a foundation station frame, a pull down bar that is positioned in front of the foundation station frame, a press bar that is positioned in front of the lower portion of the foundation station frame, a plurality of spotters that are disposed on the foundation station frame and a folding bench that can be folded toward the foundation station frame to allow relatively more compact and easier storage of the apparatus. The apparatus includes an adjustable leg press and calf raise, a plurality of seated rows that are disposed on the adjustable leg press and calf raise, a roller system that is disposed on the foundation station frame and a pair of cables that are attached to the pull down bar and the adjustable leg press and calf raise.

Abstract: A device for gassing a liquid, particularly for membrane facilities used in immersion operation, has a gas supply channel and at least one gas lance from which a gas flow exits in gassing operation. The gas lance is connected to the gas supply channel via at least one connection channel including a first mouth area on the side of the gas lance and a second mouth area on the side of the gas supply channel and generating as a throttle a flow pressure loss of the gas flow entering the gas lance. Below the first mouth area an extension section is provided, which adjoins the gas lance and has an opening below the first mouth area.

Abstract: The present invention relates to a device for gassing a liquid (1), particularly for membrane facilities used in immersion operation, having a gas supply channel (2) and at least one gas lance (3) from which a gas flow exits in gassing operation. According to the present invention the gas lance (3) is connected to the gas supply channel (2) by means of at least one connection channel (5) comprising a first mouth area (8) on the side of the gas lance (3) and a second mouth area (8?) on the side of the gas supply channel (2) and generating as a throttle a flow pressure loss of the gas flow entering the gas lance (3). Below the first mouth area (8) an extension section (6) is provided, which adjoins the gas lance (3) and has an opening (7) below the first mouth area (8).