In an injection-molded mesh filter, a mesh member for filtering out a foreign substance from a fluid includes: a plurality of horizontal bars; a plurality of vertical bars perpendicular to the horizontal bars; and a rectangular opening defined by an adjacent pair of horizontal bars and an adjacent pair of vertical bars. The horizontal bars and the vertical bars have a substantially ellipsoidal cross-sectional shape. Also, the opening is formed of smooth side faces of the adjacent pair of horizontal bars and smooth side faces of the adjacent pair of vertical bars and the opening at the upstream side of the fluid flow direction flows the fluid in a smoothly-squeezing manner, and the opening at downstream side of the fluid flow direction flows the fluid in a smoothly-expanding manner.

A fuel filter for a vehicle may include an upper case with a fuel inlet at a first side; a main filter disposed in the upper case to filter fuel flowing between an inner surface of the upper case and an external diameter of the main filter; a lower case provided in a structure having a fuel outlet and joined with a second side of the upper case; a first auxiliary filter assembly installed between the upper case and the main filter to secondarily filter the fuel; and a second auxiliary filter assembly installed between the main filter and the lower case to secondarily filter the fuel.

An automated computer-controlled sampling system and related methods for collecting, processing, and analyzing agricultural samples for various chemical properties such as plant available nutrients. The sampling system allows multiple samples to be processed and analyzed for different analytes or chemical properties in a simultaneous concurrent or semi-concurrent manner. Advantageously, the system can process soil samples in the as collected condition without drying or grinding. The system generally includes a sample preparation sub-system which receives soil samples collected by a probe collection sub-system and produces a slurry (i.e. mixture of soil, vegetation, and/or manure and water), and a chemical analysis sub-system which processes the prepared slurry samples for quantifying multiple analytes and/or chemical properties of the sample. The sample preparation and chemical analysis sub-systems can be used to analyze soil, vegetation, and/or manure samples.

An automated computer-controlled sampling system and related methods for collecting, processing, and analyzing agricultural samples for various chemical properties such as plant available nutrients. The sampling system allows multiple samples to be processed and analyzed for different analytes or chemical properties in a simultaneous concurrent or semi-concurrent manner. Advantageously, the system can process soil samples in the as collected condition without drying or grinding. The system generally includes a sample preparation sub-system which receives soil samples collected by a probe collection sub-system and produces a slurry (i.e. mixture of soil, vegetation, and/or manure and water), and a chemical analysis sub-system which processes the prepared slurry samples for quantifying multiple analytes and/or chemical properties of the sample. The sample preparation and chemical analysis sub-systems can be used to analyze soil, vegetation, and/or manure samples.

A coulter assembly for collecting soil samples from an agricultural field in one embodiment comprises an annular collection blade configured for penetrating soil to capture a sample, an annular cam ring configured for stationary mounting to a frame of an agricultural vehicle and comprising a cam track, a blade hub coupled to the blade for rotatably supporting the annular collection blade from the annular cam ring, and a movable sample collector mounted to the annular collection blade. The moveable sample collector is configured and operable for extracting a soil sample as the annular collection blade is rotated through the soil. The moveable sample collector in one embodiment comprises a piston mechanism including a cylinder and rod movably disposed therein which actuated by the annular cam ring to alternatingly open and close a collection end of the cylinder as the annular collection blade rotates through the soil.

An automated computer-controlled sampling system and related methods for collecting, processing, and analyzing agricultural samples for various chemical properties such as plant available nutrients. The sampling system allows multiple samples to be processed and analyzed for different analytes or chemical properties in a simultaneous concurrent or semi-concurrent manner. Advantageously, the system can process soil samples in the as collected condition without drying or grinding. The system generally includes a sample preparation sub-system which receives soil samples collected by a probe collection sub-system and produces a slurry (i.e. mixture of soil, vegetation, and/or manure and water), and a chemical analysis sub-system which processes the prepared slurry samples for quantifying multiple analytes and/or chemical properties of the sample. The sample preparation and chemical analysis sub-systems can be used to analyze soil, vegetation, and/or manure samples.

A filter apparatus consists of a combination of various filter elements combined to form a structural unit, one filter element of these filter elements serving to clean of particles and another filter element to clean oil oxidation products from a fluid stream, the filter elements being mounted in parallel to each other for the respective cleaning of the fluid stream.

A suspended filter device may include a ring filter element arranged in a receiving space. A cover may be securable to a housing from beneath for closing the receiving space. A drainage element may be arranged at the bottom of the cover in an installed state, and a pin may be disposed on the filter element and be configured to close the drainage element. A dome may engage into an interior of the filter element from below when the cover is installed. A guide contour may be disposed on a free end of the dome and interact with a guide element disposed on the filter element. A spring may be supported on the cover and on the dome, and may be configured to prestress the ring filter element in an upward direction into the housing via the dome.

An automated computer-controlled sampling system and related methods for collecting, processing, and analyzing agricultural samples for various chemical properties such as plant available nutrients. The sampling system allows multiple samples to be processed and analyzed for different analytes or chemical properties in a simultaneous concurrent or semi-concurrent manner. Advantageously, the system can process soil samples in the as collected condition without drying or grinding. The system generally includes a sample preparation sub-system which receives soil samples collected by a probe collection sub-system and produces a slurry (i.e. mixture of soil, vegetation, and/or manure and water), and a chemical analysis sub-system which processes the prepared slurry samples for quantifying multiple analytes and/or chemical properties of the sample. The sample preparation and chemical analysis sub-systems can be used to analyze soil, vegetation, and/or manure samples.

A filter element includes a first end cap, a second end cap, and a ring of filter media disposed between the first end cap and the second end cap. The ring of filter media circumscribes a central cavity. The filter element also includes an air-bleed conduit axially extending through the central cavity. The air-bleed conduit includes a first portion integrally formed with the first end cap and a second portion integrally formed with the second end cap. The second portion is configured to fluidly connect to the first portion.