A filter state estimation system is configured to estimate a state of a filter provided in a hydraulic circuit. The hydraulic circuit includes: the filter; a bypass channel circumventing the filter and through which an oil flows; and a valve provided in the bypass channel and configured to be opened and closed based on a differential pressure. The filter state estimation system includes: a sensor to detect that the valve is in an open state or in a closed state; a temperature sensor to detect a temperature of the oil; and a state estimating unit to estimate a state of the filter based on detection results detected by the sensor and the temperature sensor. The state estimating unit estimates the state of the filter based on the temperature of the oil which is detected by the temperature sensor when the sensor detects that the valve is in the open state.

A filter pad for use in a dewatering container is presented. The filter pad is configured to fit within the interior cavity and substantially line the interior surfaces. Material, which is usually liquids and slurries, is added to the container with the filter in place and gravity is used to filter the sediment, while the water is released through a release nozzle. The solids are retained in the filter pad for later disposal. The filter pad has a portion that can be selectively opened and is configured for placement substantially adjacent the door to permit selective egress of contents of the interior cavity.

A transportable separation apparatus for separating spent materials from oil and gas operations into a primarily solid component, a primarily liquid component and a primarily gas component. The transportable separation apparatus includes a first separation unit disposed on the transportable separation apparatus for receiving spent materials and beginning separation of the spent materials. The transportable separation apparatus connectable to a vehicle to be pulled on commercial roadways when the transportable separation apparatus is in a transportation configuration. The transportable separation apparatus further includes a second separation unit in fluid communication with the first separation unit for further separation of the spent materials. A method of using the transportable separation apparatus to separate spent materials.

The present invention relates to an aqueous coating composition for textiles, in particular for the cabin air filter of a motor vehicle, comprising at least one allergen denaturing agent and at least one compatibilizing agent for the at least one allergen denaturing agent.

A transportable separation apparatus for separating spent materials from oil and gas operations into a primarily solid component, a primarily liquid component and a primarily gas component. The transportable separation apparatus includes a first separation unit disposed on the transportable separation apparatus for receiving spent materials and beginning separation of the spent materials. The transportable separation apparatus connectable to a vehicle to be pulled on commercial roadways when the transportable separation apparatus is in a transportation configuration. The transportable separation apparatus further includes a second separation unit in fluid communication with the first separation unit for further separation of the spent materials. A method of using the transportable separation apparatus to separate spent materials.

The present invention relates to an aqueous coating composition for textiles, in particular for the cabin air filter of a motor vehicle, comprising at least one allergen denaturing agent and at least one compatibilizing agent for the at least one allergen denaturing agent.

A filtration and testing device integral thereon, for simultaneously performing cleaning of fluid used in the oil and natural gas industry for completions, workovers, and commissioning of wells while simultaneously pressure testing of two separate groups of pressurized equipment using fluid cleaned by the filtration and testing device. A support structure has a cleaning cycle assembly and a pressure testing cycle assembly connected in parallel to a controller for cleaning fluid and regulating pressure by comparing fluid pressures to preset limits. The controller regulates cleaning of first and second dirty hydraulic fluids and regulates pressure of cleaned hydraulic fluids and secondary fluids for pressure testing of the two different groups of pressurized equipment simultaneously.

An apparatus includes a separator tank and a filter tank. The separator tank includes an inlet configured to receive liquid, an outlet, and a vertical baffle dividing the separator tank into an inlet section and an outlet section. The filter tank is in fluid communication with the outlet and includes a distribution tray approximately at a top of the filter tank and a horizontal baffle below the distribution tray. The horizontal baffle is spaced vertically from the distribution tray forming a first capacity reservoir. The horizontal baffle is further spaced vertically above a bottom of the filter tank to form a second capacity reservoir.

A filtration and testing device integral thereon, for simultaneously performing cleaning of fluid used in the oil and natural gas industry for completions, workovers, and commissioning of wells while simultaneously pressure testing of two separate groups of pressurized equipment using fluid cleaned by the filtration and testing device. A support structure has a cleaning cycle assembly and a pressure testing cycle assembly connected in parallel to a controller for cleaning fluid and regulating pressure by comparing fluid pressures to preset limits. The controller regulates cleaning of first and second dirty hydraulic fluids and regulates pressure of cleaned hydraulic fluids and secondary fluids for pressure testing of the two different groups of pressurized equipment simultaneously.

A floating vessel with a filtration and testing device integral thereon, for simultaneously performing cleaning of fluid used in the oil and natural gas industry for completions, workovers, and commissioning of wells while simultaneously pressure testing of two separate groups of pressurized equipment using fluid cleaned by the filtration and testing device. The floating vessel having a hull with a support structure mounted thereto which contains a cleaning cycle assembly and a pressure testing cycle assembly connected in parallel to a controller for cleaning fluid and regulating pressure by comparing fluid pressures to preset limits. The controller regulates cleaning of first and second dirty hydraulic fluids and regulates pressure of cleaned hydraulic fluids and secondary fluids for pressure testing of the two different groups of pressurized equipment simultaneously.