Abstract: Wheel hub arrangement for a drive with rotated drum that has a stationary shaft (13); a hollow drum (19, 20) arranged by bearings around it, a wheel drum (32) that includes a hub of the driven wheel, and freewheels, inner sleeve (21, 22) which are arranged around the stationary shaft (13) by bearings, and placed partially in the cavity of the drum (19, 20). The wheel hub arrangement for a drive with rotated drum for bicycles, street stepper vehicles, wheelchairs and tricycles.

Abstract: Wheel hub arrangement for a drive with rotated drum that has a stationary shaft (13); a hollow drum (19, 20) arranged by bearings around it, a wheel drum (32) that includes a hub of the driven wheel, and freewheels, inner sleeve (21, 22) which are arranged around the stationary shaft (13) by bearings, and placed partially in the cavity of the drum (19, 20). The wheel hub arrangement for a drive with rotated drum for bicycles, street stepper vehicles, wheelchairs and tricycles.

Abstract: Device for driving a common shaft by pushing and pulling hand movements, that comprises respective driving bars for the left and right hands, and a mechanical unit that converts both the forward and backward movements of the pushed, respectively pulled driving bars to rotate a driven shaft, wherein respective biased rope drums (28, 29; 61, 62) are provided at both sides of the driven shaft, and on the rope drums respective ropes (30, 60) are arranged as windings, and the driving bars (15, 16; 51) are interconnected and pivoted around a common shaft (17, 52), the ropes are coupled to the respective driving bars in such a way that at one of the two sides an assembly is provided that reverses the direction of the rope displacement to become opposite to the direction of the displacement of the associated driving bar (16).

Abstract: A mobile station and methods are disclosed for diagnosing and modeling site specific effluent treatment facility requirements to arrive at a treatment regimen and/or proposed commercial plant model idealized for the particular water/site requirements. The station includes a mobile platform having power intake, effluent intake and fluid outflow facilities and first and second suites of selectably actuatable effluent pre-treatment apparatus. An effluent polishing treatment array is housed at the station and includes at least one of nanofiltration, reverse osmosis and ion-exchange stages. A suite of selectively actuatable post-treatment apparatus is housed at the station. Controls are connected at the station for process control, monitoring and data accumulation. A plurality of improved water treatment technologies is also disclosed.

Abstract: Oscillatory crossflow membrane separation apparatus and methods are disclosed for effluent treatment. The apparatus include a membrane module with a housing containing a membrane element, said module having an input for receiving effluent for treatment and a treated effluent output. A crossflow pump is connected for moving oscillating fluid through the membrane module and a feed pressure pump is connected with the membrane module for applying membrane operating pressure. A fluid oscillator is active with either pump for pulsating fluid received thereat.

Abstract: Wheel hub arrangement with three drum units comprising a hollow drum (18), a winding of a flexible pulling element fixed on the drum, and a biasing spring (22) in the hollow inner space. Respective free-wheels (36) are provided at sides of the hub unit (4). The wheel hub unit comprises a pair of spaced driving sleeves (33) arranged in axial direction and the sides of the driving sleeves facing to a drum unit and being connected therewith to transmit of torque only. The driving sleeves are surrounded by intermediate sleeves (38) and a spacing is formed between them, wherein a ball bearing (35) and one of the freewheels are arranged so that they are connected both with the outer surface of the driving sleeve and the inner surface of the intermediate sleeve. The intermediate sleeves are connected rigidly together and they are also connected at least during the driving sessions to an outer sleeve (40) of the wheel hub unit.

Abstract: Apparatus and methods for enhanced electrocoagulation processing using enhanced membrane aeration are disclosed for effluent treatment. The apparatus has an enrichment means for establishing an ion rich air/gas stream and a membrane aerator for receiving the ionized air/gas stream and effluent to be treated. An ionized air/gas rich effluent feed stream flows out of the membrane aerator and is received at an electrocoagulation processing assembly for diffused ion enhanced electrocoagulation treatment.

Abstract: Device for driving a common shaft by pushing and pulling hand movements, that comprises respective driving bars for the left and right hands, and a mechanical unit that converts both the forward and backward movements of the pushed, respectively pulled driving bars to rotate a driven shaft, wherein respective biased rope drums (28, 29; 61, 62) are provided at both sides of the driven shaft, and on the rope drums respective ropes (30, 60) are arranged as windings, and the driving bars (15, 16; 51) are interconnected and pivoted around a common shaft (17, 52), the ropes are coupled to the respective driving bars in such a way that at one of the two sides an assembly is provided that reverses the direction of the rope displacement to become opposite to the direction of the displacement of the associated driving bar (16).

Abstract: Electrocoagulation effluent treatment apparatus and methods are disclosed, the apparatus including a primary electrocoagulation reactor chamber having treatment electrodes maintained therein and an effluent inlet and treated effluent outlet. An integrated flotation chamber is located above the reaction chamber, a vacuum device connectable with a vacuum source being received in the flotation chamber and including a foam intake and an output. A sludge chamber is defined below and integrated with the primary reaction chamber and has a settled sludge output.

Abstract: A mobile station and methods are disclosed for diagnosing and modeling site specific effluent treatment facility requirements to arrive at a treatment regimen and/or proposed commercial plant model idealized for the particular water/site requirements. The station includes a mobile platform having power intake, effluent intake and fluid outflow facilities and first and second suites of selectably actuatable effluent pre-treatment apparatus. An effluent polishing treatment array is housed at the station and includes at least one of nanofiltration, reverse osmosis and ion-exchange stages. A suite of selectively actuatable post-treatment apparatus is housed at the station. Controls are connected at the station for process control, monitoring and data accumulation. A plurality of improved water treatment technologies is also disclosed.

Abstract: Electrocoagulation effluent treatment apparatus and methods are disclosed, the apparatus including a primary electrocoagulation reactor chamber having treatment electrodes maintained therein and an effluent inlet and treated effluent outlet. An integrated flotation chamber is located above the reaction chamber, a vacuum device connectable with a vacuum source being received in the flotation chamber and including a foam intake and an output. A sludge chamber is defined below and integrated with the primary reaction chamber and has a settled sludge output.

Abstract: Use of a non-sacrificial electrode made of synthetic graphite for applications utilizing conductive immersed treatment of wastewater is disclosed. The synthetic graphite is manufactured from a petroleum based extruded or molded composite material in any of plate, bar or coil forms. The electrodes are especially useful in the primary reaction chamber of an electrocoagulation apparatus.

Abstract: A mobile station and methods are disclosed for diagnosing and modeling site specific effluent treatment facility requirements to arrive at a treatment regimen and/or proposed commercial plant model idealized for the particular water/site requirements. The station includes a mobile platform having power intake, effluent intake and fluid outflow facilities and first and second suites of selectably actuatable effluent pre-treatment apparatus. An effluent polishing treatment array is housed at the station and includes at least one of nanofiltration, reverse osmosis and ion-exchange stages. A suite of selectively actuatable post-treatment apparatus is housed at the station. Controls are connected at the station for process control, monitoring and data accumulation. A plurality of improved water treatment technologies is also disclosed.

Abstract: Apparatus and methods for enhanced electrocoagulation processing using enhanced membrane aeration are disclosed for effluent treatment. The apparatus has an enrichment means for establishing an ion rich air/gas stream and a membrane aerator for receiving the ionized air/gas stream and effluent to be treated. An ionized air/gas rich effluent feed stream flows out of the membrane aerator and is received at an electrocoagulation processing assembly for diffused ion enhanced electrocoagulation treatment.

Abstract: Use of a non-sacrificial electrode made of synthetic graphite for applications utilizing conductive immersed treatment of wastewater is disclosed. The synthetic graphite is manufactured from a petroleum based extruded or molded composite material in any of plate, bar or coil forms. The electrodes are especially useful in the primary reaction chamber of an electrocoagulation apparatus.

Abstract: Apparatus and methods for enhanced electrocoagulation processing using enhanced membrane aeration are disclosed for effluent treatment. The apparatus has an enrichment means for establishing an ion rich air/gas stream and a membrane aerator for receiving the ionized air/gas stream and effluent to be treated. An ionized air/gas rich effluent feed stream flows out of the membrane aerator and is received at an electrocoagulation processing assembly for diffused ion enhanced electrocoagulation treatment.

Abstract: Alternating drive primarily for bicycles and similar driven vehicles, in which the rotation of driven pedals are converted into reciprocating swinging motion of swinging arms, and the swinging arms have respective driving arms (16, 16?) coupled to a head portion (14, 14?) surrounding the swinging shaft (11) of the pedals from which a traction arm (17, 17?) is extending out that closes an angle with the driving arm and the remote ends of the driving and traction arms (16, 17) are interconnected by a connection arm (20, 20?) A substantially triangular opening is formed between these arms, and the shaft of a driving wheel (15, 15?) is positioned in this opening, the traction arm defines a traction path (19, 19?), and a flexible pulling rope (28) that rotates the driven wheel of the vehicle is led around at least one rope wheel (26) that has a shaft (35) guided and led along the traction path for adjusting the transmission ratio.

Abstract: Apparatus and methods are disclosed for mechanical axial vibration in membrane separation treatment processes. The apparatus includes a separation membrane element having an axial dimension, a membrane support structure having the element therein, and means for vibrating the membrane element (hydrodynamically or using motors) in the axial dimension.

Abstract: Wheel hub arrangement with three drum units comprising a hollow drum (18), a winding of a flexible pulling element fixed on the drum, and a biasing spring (22) in the hollow inner space. Respective free-wheels (36) are provided at sides of the hub unit (4). The wheel hub unit comprises a pair of spaced driving sleeves (33) arranged in axial direction and the sides of the driving sleeves facing to a drum unit and being connected therewith to transmit of torque only. The driving sleeves are surrounded by intermediate sleeves (38) and a spacing is formed between them, wherein a ball bearing (35) and one of the freewheels are arranged so that they are connected both with the outer surface of the driving sleeve and the inner surface of the intermediate sleeve. The intermediate sleeves are connected rigidly together and they are also connected at least during the driving sessions to an outer sleeve (40) of the wheel hub unit.

Abstract: A compact biological treatment assembly, apparatus and methods are disclosed, the apparatus including a movable belt biological contactor having selected microbial cultures established thereon. The apparatus further includes a tank having a volume for receipt of wastewater to be treated, first and second drums positioned at the tank each connected to an end of the belt contactor, and a motor or motors together with a controller for rotating the drums cooperatively to move the belt contactor between the drums thereby coiling and uncoiling the belt contactor on the drums.