A method for filtering a gas comprises passing a gas through a compartment of a filter assembly, the filter assembly comprising: an inlet opening; a first outlet opening; a casing comprising polymeric film and bounding the compartment, the compartment communicating with the inlet opening and the first outlet opening; and a first filter at least partially disposed within the compartment. The method further comprising forming a first seal across a first section of the casing at a location between the inlet opening and the first filter to form a first sub-compartment within the casing and severing the casing at a first location.

High thermal transfer, hollow core extrusion screws (50, 52, 124, 126, 190) include elongated hollow core shafts (54, 128, 130, 192) equipped with helical fighting (56, 132, 134, 194) along the lengths thereof. The fighting (132, 134, 194) may also be of hollow construction which communicates with the hollow core shafts (54, 128, 130, 192). Structure (88, 90) is provided for delivery of heat exchange media (e.g., steam) into the hollow core shafts (54, 128, 130, 192) and the hollow fighting (132, 134, 194). The fighting (56, 132, 134, 194) also includes a forward, reverse pitch section (64, 162, 216). The extrusion screws (50, 52, 124, 126, 190) are designed to be used as complemental pairs as a part of twin screw processing devices (20), and are designed to impart high levels of thermal energy into materials being processed in the devices (20), without adding additional moisture.

A bioreactor system includes a support housing having an interior surface bounding a compartment, the support housing having a sidewall with an opening extending therethrough and communicating with the compartment. A rack is secured to the support housing in alignment with the opening. An elongated first shaft has a first end and an opposing second end, the first end of the first shaft being secured to the rack so that the second end of the first shaft projects outwardly away from the sidewall of the support housing. A structure is secured to the first shaft towards the second end of the first shaft, the structure outwardly projecting away from the first shaft. A collapsible bag bounds a chamber and is at least partially disposed within the compartment of the support housing. A member projects from the collapsible bag and passes through the opening on the sidewall, the structure restraining movement of the member.

The present disclosure relates to a mixing assembly for a fluid mixing system. The mixing assembly includes a first rotational assembly having a first casing and a first hub rotatably mounted to the first casing, a second rotational assembly having a second casing and a second hub rotatably mounted to the second casing, an elongated member having a first end coupled with the first hub and an opposing second end coupled with the second hub, and one or more impellers secured to the elongated member.

The present disclosure relates to a mixing assembly for a fluid mixing system. The mixing assembly includes a first rotational assembly having a first casing and a first hub rotatably mounted to the first casing, a second rotational assembly having a second casing and a second hub rotatably mounted to the second casing, an elongated member having a first end coupled with the first hub and an opposing second end coupled with the second hub, and one or more impellers secured to the elongated member.

An agitator device has at least one intermediate bearing which is configured for supporting an agitation shaft within an agitation tank and which has a first bearing element and a second bearing element which, in an operation state, is rotatable relative to the first bearing element around a bearing axis and is in contact with the first bearing element, wherein at least one of the bearing elements has polycrystalline diamond.

A mixer for combining food constituents into a homogeneous mass includes an eccentric drive mounted on a mixing head of the mixer, where the eccentric drive is configured to rotate around a central axis of a mixing area and rotate an offset rotational axis of a drive shaft in an orbit about the central axis of the mixing area. An angled beater attachment for the mixer further includes a top mounting portion operably coupled to the drive shaft of the stand mixer, a bottom beater portion disposed above the mixing area, and a beater support member operably coupled with a support shaft of the bottom beater portion. The bottom beater portion is driven by the drive shaft about an angled rotational axis that extends at an acute angle relative to the central axis of the mixing area.

A mixer for combining food constituents into a homogeneous mass includes an eccentric drive mounted on a mixing head of the mixer, where the eccentric drive is configured to rotate around a central axis of a mixing area and rotate an offset rotational axis of a drive shaft in an orbit about the central axis of the mixing area. An angled beater attachment for the mixer further includes a top mounting portion operably coupled to the drive shaft of the stand mixer, a bottom beater portion disposed above the mixing area, and a beater support member operably coupled with a support shaft of the bottom beater portion. The bottom beater portion is driven by the drive shaft about an angled rotational axis that extends at an acute angle relative to the central axis of the mixing area.

A blending appliance is provided including a motorized base, a blending container, and a blade assembly fitted into an opening of the blending container and rotatably coupled to the motorized base when the blending container is mounted on the motorized base. The blade assembly includes a lower blade element disposed on a spindle performing blending operations on ingredients at a lower end of the blending container; and an upper working element disposed on a shaft spaced apart from the lower blade element, and including an upper working portion and a lower working portion spaced apart from the upper working portion. The upper working portion acting to reduce cavitation in the lower blades element during the blending process.

The invention relates to an agitator device having a static unit and a rotational unit which is in the form of an agitator shaft and, in an assembled state, forms together with the static unit at least one common fluid channel for a fluid. It is proposed that a flow cross-section of the fluid channel, viewed along a main course of flow, is at least substantially constant at least in a coupling region between the static unit and the rotational unit.