Goods & Services

Metal building materials for small-scale clarifying installations and sewage purification installations. Small clarifying installations and parts therefor, included in class 11; Sewage disposal plants. Building materials (non-metallic) for small-scale clarifying installations and sewage purification installations.

Abstract

The invention relates to a wastewater treatment device (24) for a sewage treatment plant, characterised by a filter module (20) and a compressed air source (30) for supplying compressed air into said filter module (20), the filter module (20) comprising openings (28) through which water can enter into the filter module (20); as well as by a conveying device (22) for purified wastewater, which has a liquid inlet (38) connected to said filter module (20).

IPC Classes  ?

• C02F 3/12 - Activated sludge processes
• C02F 3/20 - Activated sludge processes using diffusers
• C02F 3/22 - Activated sludge processes using circulation pipes

Abstract

The invention relates to a floating valve (10), comprising a hollow body (16), which is tiltably supported about a tilt axis (K) between an upper and lower angle of inclination, comprising a valve body (26) that is movably mounted between a first and a second switch position in the hollow body (16), and comprising a flexible infeed hose leading to an inlet (18) of the hollow body (16), wherein the floating valve is characterized in that the hollow body (16) is tube-shaped and comprises only one outlet (20) disposed at one end of the hollow body (16), while the inlet (18) is disposed at the opposite end of the hollow body (16), and in that the outlet comprises a valve seat (28) that is opened in a first switch position and is closed off by the valve body (26) in a second switch position, wherein the inlet end of the hollow body (16) is connected to the tilt axis (K) by means of a partial piece (32) of the infeed hose, such that the valve body (26) can move automatically from the second switch position to the first switch position during an upward motion if an upper tilt angle is exceeded and can move automatically from the first switch position to the second switch position during a downward motion if the tilt angle falls below a lower limit, which is different from the upper tilt angle.

IPC Classes  ?

• F16K 21/18 - Self-closing valves, i.e. closing automatically after operation closed when a rising liquid reaches a predetermined level
• F16K 17/36 - Safety valvesEqualising valves actuated in consequence of extraneous circumstances, e.g. shock, change of position

Abstract

Directional valve (10, 40) having two outlets and a movable valve element (74) for optionally closing a first (14) or a second outlet (16) of the directional valve (10, 40), characterized in that the two outlets (14, 16) comprise in each case one valve seat (30, 34) for receiving the valve element (18), and in that the valve element (18) can be pressed from an initial position into a first of the two valve seats (30) by flow pressure in order to close the first outlet (14) and, in the flowless valve state, can pass from the first valve seat (30) into a position, from which the valve element (18) can be pressed into the second valve seat (34) by flow pressure in order to close the second outlet (16).

IPC Classes  ?

• F16K 11/056 - Multiple-way valves, e.g. mixing valvesPipe fittings incorporating such valvesArrangement of valves and flow lines specially adapted for mixing fluid with all movable sealing faces moving as one unit comprising only lift valves with ball-shaped valve members
• F16K 15/04 - Check valves with guided rigid valve members shaped as balls

Abstract

Biological sewage treatment device (10) having at least one clarification chamber (14) and an immersion pump (28) arranged in the clarification chamber (14) for treating waste water, characterized in that the pressure side of the immersion pump (28) is connected to the inlet of a multiwave value (34, 90) having two outlets, of which a first outlet (36) is connected to a mixing line (38) opening into the clarification chamber (14), and a second outlet (42) is connected to an emptying line (44) which opens into a clarified water outlet (26).

IPC Classes  ?

• C02F 3/12 - Activated sludge processes
• C02F 3/30 - Aerobic and anaerobic processes

Goods & Services

Building materials of metal for small clarifying installations. Small clarifying installations and parts therefor, included in class 11. Building materials (non-metallic) for use in small clarifying installations.

Goods & Services

Purification installations for sewage.