16results about "Flasks" patented technology

The utility model relates to the technical field of chemical reagent experiments, in particular to a flask with an explosion-proof function, which comprises a safety plug, the bottom end of the safety plug vertically penetrates through an opening at the top end of a thin bottle neck, a ball bottle body is arranged at the bottom end of the thin bottle neck, and a pressure relief through pipe is arranged on the outer wall of one side of the ball bottle body. And a pressure relief valve obliquely penetrates through the interior of the pressure relief through pipe, one side of the outer portion of the ball bottle body is sleeved with a first protective net sleeve, and one side of the first protective net sleeve is connected with a second protective net sleeve in an adsorption mode. According to the improved flask and the safety plug, automatic pressure adjustment is achieved, a controllable pressure relief channel is formed, the sealing performance and the safety are balanced, the relative positions of the pressure relief valve and the pressure relief hole are changed, high-pressure gas can be conveniently diffused and discharged in a fan shape through the pressure relief hole, the impact force and danger of gas injection are reduced, meanwhile, the pressure relief valve has a reset mechanism, and the safety performance is improved. The first protective net sleeve and the second protective net sleeve can effectively intercept large glass fragments generated when the bottle body is broken, and the large glass fragments are prevented from splashing to hurt people.

Glass vessel (11, 11'), in particular evaporation flask, for a laboratory device (30), in particular a rotary evaporator, with a vessel body (12) made of glass, which defines a receiving space (17) for a medium to be heated, in particular a liquid, characterized by at least one heating resistance element (20) which is in thermally conductive contact with the vessel body (12) and has a connection (23) for supplying electrical energy, wherein the connection (23) comprises at least two sliding contact surfaces (25) which surround a neck (15) of the flask-shaped glass vessel (12).

A non-invasive system and method for simultaneous monitoring of substances in a cell culture medium is described. This measurement is not in direct contact with the culture medium, but may be performed through the permeable membrane via an orifice in the culture vessel wall or an orifice in the flow cell. The non-invasive monitoring system and method can provide accurate and pollution-minimized monitoring of critical process parameters, including dissolved O2, pH, and dissolved CO2. The progress can enhance the control and optimization of the cell culture process, so that the cell culture effect is expected to be improved.

This solution discloses an ammonia nitrogen pre-distillation device in the field of pretreatment technology before the detection of harmful components in wastewater, comprising a round-bottom flask, the round-bottom flask comprising a bottle body and a bottleneck, the bottleneck being connected to a branch pipe that is detachably connected to the condenser; further comprising a cleaning assembly, the cleaning assembly comprising a lifting rod and a scraper connected to one end of the lifting rod, the scraper being evenly distributed with a number of air holes, the scraper being located in the bottleneck and the edge of the scraper being in contact with the inner wall of the bottleneck, the lifting rod sliding through the plug; a drain port being provided on the bottleneck, the drain port being located between the branch pipe and the bottle body, a sealing plug for sealing the drain port being provided at the drain port, the sealing plug being located at one end in the bottleneck being connected to a brush rod, the brush rod being evenly distributed with a number of bristles, the end of the bristles being in contact with the wall of the bottleneck. This solution can effectively prevent the branch pipe from being blocked, and can also prevent floating objects from entering the condenser. The structure is simple but the effect is outstanding, the operation of cleaning the foam can be carried out quickly, and does not affect the distillation process.

A cylindrical sample container (1), partially or totally open at the top, having a base diameter of 20 to 40 cm and a capacity greater than 5 liters, characterized in that one or more mixing elements (3) are attached to the base (2) of the cylinder or to a pin (7) in its center. Figure for the abstract: Fig. 2

The utility model discloses a flask device for preventing bumping during reduced pressure distillation, which is characterized in that the flask device comprises a flask body which comprises a bottle body structure and a guide pipe arranged at the upper end of the bottle body structure; the guide pipe is of a guide pipe structure with at least one arc-shaped channel; a branch pipe is communicated with the side of the guide pipe above the arc-shaped channel; an anti-bumping opening is formed in the bottle wall of the bottle body structure, and a bottle plug is arranged at the anti-bumping opening; and an air guide pipe penetrates through the bottle plug and extends into the bottle body structure from the anti-bumping opening. Compared with the previous mode of adopting zeolite, the method effectively overcomes the problem of sudden explosion of the oil product, improves the success rate of the test, and also improves the working efficiency of operators.

A cell culture flask having a flask body that defines a cavity for receiving a cell culture medium is provided. The flask body includes an elongate neck that defines an opening to the cavity, a base, and a sidewall that extends from the elongate neck to the base of the flask body. The sidewall includes a circumferential beveled portion, which may or may not be faceted, that extends from an outermost periphery of the flask body to the base of the flask body at a constant angle relative to a central axis of the flask to define a sidewall angle.

An inlay for a flask comprises a bottom portion, a side portion, an intermediate portion, and a baffle element. The bottom portion comprises a downward-facing or downward-and-outward-facing first surface for abutting a bottom inner surface of the flask. The side portion comprises an outer surface for abutting a side inner surface of the flask, wherein the outer surface faces outwards with respect to a vertical reference line intersecting the inlay. The intermediate portion mechanically connects the bottom portion and the side portion. The baffle element extends away from the bottom portion, from the side portion, and / or from the intermediate portion for extending into an inner volume of the flask. An inner angle between the first surface and the outer surface is at least 50°, wherein the inner angle refers to an angle on the side of the vertical reference line in a vertical cross section through the inlay. The inlay comprises a first flexible material adapted to allow for bending said side portion inwards. The inlay is adapted to allow for folding the inlay with respect to a horizontal crease line to insert the inlay into the flask. The inlay comprises, along a vertical plane comprising the horizontal crease line, a second flexible material to allow for said folding.

The present invention aims to significantly reduce the burden on vacuum workers and the cost of vacuuming when measuring the concentration of impurities contained in silicon by photoluminescence in liquid helium. The inner cylinder Dewar flask (2) is formed of a material, i.e., glass, having a SiO2 content of 65% by weight or more and 75% by weight or less, and when the temperature of the glass is 20°C or more and 300°C or less, the average thermal expansion coefficient of the glass is 25×10 ‑7 / ℃ and above 55×10 ‑7 / ℃ below.

A cell culture vial is provided having a vial body defining a cell culture medium receiving cavity. The bottle includes an elongated neck defining an opening to the cavity, a bottom, and a sidewall extending from the elongated neck to the bottom of the bottle. The side wall includes a circumferential beveled portion that may or may not be machined into a facet, the beveled portion extending from the outermost edge of the bottle body to the bottom of the bottle body at a constant angle relative to the central axis of the bottle to define a side wall angle.

The composite article includes a lattice and an elastomeric section. The lattice includes a plurality of members forming an open mesh frame defining a plurality of voids between adjacent members of the frame. The elastomeric section is formed of an elastomer disposed around the lattice and within the voids of the lattice. The composite article can be a circular gasket, a gasket with a grip, a rectangular gasket, a container cap, a flask stand, and a handle for a hand tool.

The present invention relates to a device for the collection, pre-analytical treatment, transport and / or grinding of a solid sample, comprising a flask for receiving the solid sample, a pre-analytical medium comprised in the flask and a plurality of beads also comprised in the flask, each bead having a diameter equal to or greater than 5 mm and a density of at least 5.0 g.cm-3. The present invention also relates to the use of said device and to a method for extracting all or part of at least one eukaryotic or prokaryotic cell from a solid sample.

A specimen collection container assembly including a collection tube, an interior reservoir formed within the collection tube, a gel separation substance provided within the interior reservoir, and a rigid barrier member provided within the interior reservoir. Upon collection of a specimen within the interior reservoir and centrifugation of the collection tube, the specimen is divided into two primary component parts, and the gel separation substance and the rigid barrier member migrate or are otherwise moved to a transition location between the two primary component parts so as to form a physical barrier between a first component part of the specimen and a second component part of the specimen.

Sample bottle, comprising a bottle body (1) and a holding device (3) at the bottom (11) of the bottle body (1), wherein the retaining device (3) is designed as a liquid-tight cap attached to the bottom (11) of the bottle body (1), which has a closed shape and into which the bottom (11) of the bottle body (1) projects and which prevents liquid from entering the area between the cap and the bottle body (1), characterized by , that the mounting device (3) has an electronic tag (4) and that the cavity of the mounting device (3) is filled with adhesive or silicone.

The utility model discloses a perfluoro-n-propyl vinyl ether dimer preparation device, which comprises an oil bath pan, a three-necked flask is arranged in the oil bath pan, the three-necked flask comprises three bottle mouths, a thermometer, a stirrer and a condensation reflux pipe are respectively arranged on the three bottle mouths, the thermometer, the stirrer and the condensation reflux pipe are fixed through a support frame, and the support frame is fixed on the oil bath pan. A water avoiding mechanism is arranged at the upper port of the condensation return pipe which is connected with a collecting bottle through a three-way pipe. The condensation return pipe comprises a cooling cavity and a spiral pipe arranged in the cooling cavity, condensate flows in the spiral pipe to cool a product in the cooling cavity, product steam is liquefied when meeting the low-temperature condensate, and the liquefied product steam flows back into the three-necked flask through the three-way pipe to carry out the next reaction; the water avoiding mechanism can discharge gas generated in the reaction process out of the three-necked flask, balance internal and external pressure and prevent the three-necked flask from bursting due to increase of air pressure, and can isolate external water molecules to keep the whole reaction to be carried out under a water-free condition.