This document provides a dual flask for laboratory use, methods of using a dual flask, and systems including a dual flask. A dual flask can include a first flask structure and a second flask structure. Each flask structure can include a body and a neck. The first body and the second body in a dual flask provided herein can be connected together and have a filter there between such that fluids can be filtered between said first and second bodies.

Laboratory equipment holder to mount and position glass flasks in a simple and secure manner. The laboratory equipment holder includes of a component on which at least one holding device is attached and both the component and also the holding device and the connection between the component and holding device can be mechanically loaded with at least one filled piece of laboratory equipment, and the component includes on one of its sides at least one recess. At least the end thereof within the component is embodied in an at least semicircular manner and at least the smallest diameter of the semicircular section of the recess is smaller than the largest diameter of the truncated conical neck of the piece of laboratory equipment and/or is smaller than the largest diameter of the beaded edge-like enlargement of the neck of the piece of laboratory equipment.

Laboratory equipment holder to mount and position glass flasks in a simple and secure manner. The laboratory equipment holder includes of a component on which at least one holding device is attached and both the component and also the holding device and the connection between the component and holding device can be mechanically loaded with at least one filled piece of laboratory equipment, and the component includes on one of its sides at least one recess. At least the end thereof within the component is embodied in an at least semicircular manner and at least the smallest diameter of the semicircular section of the recess is smaller than the largest diameter of the truncated conical neck of the piece of laboratory equipment and/or is smaller than the largest diameter of the beaded edge-like enlargement of the neck of the piece of laboratory equipment.

A flask assembly that includes: an Erlenmeyer flask; and a liner bag comprising a single opening the bag sized to fit within the flask and having a thickness from about 0.0254 mm to about 0.508 mm. The liner bag is configured for cell culturing and ease of insertion of the bag into the flask. In addition, the liner bag comprises a gas-permeable, polymeric material. Further, the liner bag can include a pocket adapted to receive a removable flask insertion element and/or at least one foldable seam configured to facilitate insertion of the bag into the flask. The liner bag can also include a vent having a gas permeability that is greater than the gas permeability of the gas-permeable, polymeric material employed in the balance of the bag.

The present invention belongs to the technology field of microbial fermentation of the sugar-containing raw materials for producing fuel ethanol. It specifically relates to a continuous separation device and process for producing fuel ethanol. The device is continuous distillation device, and is improvement of the distillation device in the prior art. The present invention utilizes a continuous ethanol separation process, which can make full use of fermentable sugar of the sweet sorghum straw (or sugar cane, sugar beet), increase ethanol yield, change the traditional mode of production, truly realize continuous ethanol separation process; and the waste materials produced in the procedure of distillation can be used either as fuel, or as animal feed, and this not only saves the cost, but also is greatly significant in environmental protection.

The present invention belongs to the technology field of microbial fermentation of the sugar-containing raw materials for producing fuel ethanol. It specifically relates to a continuous separation device and process for producing fuel ethanol. The device is continuous distillation device, and is improvement of the distillation device in the prior art. The present invention utilizes a continuous ethanol separation process, which can make full use of fermentable sugar of the sweet sorghum straw (or sugar cane, sugar beet), increase ethanol yield, change the traditional mode of production, truly realize continuous ethanol separation process; and the waste materials produced in the procedure of distillation can be used either as fuel, or as animal feed, and this not only saves the cost, but also is greatly significant in environmental protection.

The invention provides an apparatus including a reactionware and an analytical device for analysing a reaction, the analytical device including at least a plurality of reaction sensors and the analytical device is configured for placement of a plurality of sensors in the reaction space of the reactionware, and optionally the reaction headspace of the reactionware, and the reactionware is a reaction flask having one or more necks, and the analytical device is held in a neck of the reaction flask.

The invention provides an apparatus including a reactionware and an analytical device for analysing a reaction, the analytical device including at least a plurality of reaction sensors and the analytical device is configured for placement of a plurality of sensors in the reaction space of the reactionware, and optionally the reaction headspace of the reactionware, and the reactionware is a reaction flask having one or more necks, and the analytical device is held in a neck of the reaction flask.

The present invention is an article or device to facilitate the heating of rounded vessels and other rounded objects comprising a flexible polymeric support comprising a plurality of nested, concentric hollow cylindrical portions each having respective upper edges and adapted to be arranged and fixed in at least two configurations such that the upper edges of the concentric hollow cylindrical portions accommodate at least two respective bowl-shaped contours. The present invention also includes a device to facilitate the heating of rounded vessels or objects, or regularly-shaped or irregularly-shaped objects and containers comprising a container presenting a flexible polymeric support surface, the container containing a malleable material, such that said flexible polymeric support surface is sufficiently malleable so as to be adapted for the heating such objects or containers. Also included is an arrangement for heating such a container or object, and/or for stirring the contents of such a container, while being supported by the article or device of the present invention.

The present invention is an article or device to facilitate the heating of rounded vessels and other rounded objects comprising a flexible polymeric support comprising a plurality of nested, concentric hollow cylindrical portions each having respective upper edges and adapted to be arranged and fixed in at least two configurations such that the upper edges of the concentric hollow cylindrical portions accommodate at least two respective bowl-shaped contours. The present invention also includes a device to facilitate the heating of rounded vessels or objects, or regularly-shaped or irregularly-shaped objects and containers comprising a container presenting a flexible polymeric support surface, the container containing a malleable material, such that said flexible polymeric support surface is sufficiently malleable so as to be adapted for the heating such objects or containers. Also included is an arrangement for heating such a container or object, and/or for stirring the contents of such a container, while being supported by the article or device of the present invention.