23results about "Flasks" patented technology

A noninvasive system and method for simultaneous monitoring of species in a cell culture medium is described. Instead of direct contact with the culture media, the measurements can be made through permeable membranes via either a port in the culture vessel wall or a port in a flow cell. The noninvasive monitoring system and method can offer accurate, and contamination-minimized monitoring of critical process parameters including dissolved O2, pH, and dissolved CO2. These advancements will enhance the control and optimization of cell culture processes, promising improved cell culture performance.

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.

The utility model discloses a starch chemical modification device, which relates to the technical field of starch modification, and comprises a three-necked flask, a working table, and an air supply mechanism, a heating mechanism and a clamping mechanism which are sequentially arranged on the working table, the bottom of the three-necked flask is positioned in the heating mechanism, and the top of the three-necked flask is sequentially provided with an air vent, a volatilization port and a feeding port; the ventilation port is connected with a gas supply mechanism, the volatilization port is connected with a condensation reflux mechanism, the clamping mechanism is used for clamping and fixing the condensation reflux mechanism, and the three-necked flask is used for preparing ionic liquid and chemically modifying starch. According to the device, various conditions such as heating, reflux and nitrogen protection required by ionic liquid preparation can be met, the preparation effect is good, and starch can be chemically modified after preparation is completed.

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.

Refrigeration cooler cooled by a Peltier element.

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 utility model relates to an easy-to-clean round-bottom flask which comprises a first flask body and a second flask body detachably arranged on the first flask body, and a straight-tube-shaped flask neck is arranged on the first flask body; a connecting mechanism is arranged between the first bottle body and the second bottle body; the connecting mechanism comprises a first waterproof covered edge, a second waterproof covered edge, a first strong magnetic ring and a second strong magnetic ring, wherein the first waterproof covered edge and the second waterproof covered edge are arranged on the truncation interface of the first bottle body and the second bottle body respectively, the first strong magnetic ring is arranged between the first waterproof covered edge and the first bottle body, and the second strong magnetic ring is arranged between the second waterproof covered edge and the second bottle body. The magnetic poles of the first strong magnetic ring and the second strong magnetic ring are opposite. By adopting the design that the first bottle body and the second bottle body are detachable and being provided with the special connecting mechanism, a user can easily separate the first bottle body and the second bottle body, and therefore the interior of the bottle body can be conveniently and thoroughly cleaned. Due to the design, the cleaning efficiency is greatly improved, the cleaning difficulty is reduced, and the flask can still be kept clean and sanitary after being used for many times.

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 utility model relates to the technical field of flasks, specifically a triangular flask, comprising a bottle body, a bottleneck is arranged at the top of the bottle body, a bottle mouth is arranged at the top of the bottleneck, the bottle body, the bottleneck and the bottle mouth are an integrated structure, an auxiliary device is arranged inside the bottle mouth, a solution is poured in through a through hole, the solution flows to the upper end of a liquid equalizing block through a liquid guide tube, the solution is first preliminarily buffered by the liquid equalizing block to reduce the impact force of the solution, and then the solution flows down along the outer wall of the liquid equalizing block, the outer wall of the liquid equalizing block is close to the inner side of the bottle body, so that the solution flows slowly along the bottle body, and at the same time the liquid equalizing block can play a shielding role, shielding the splashed solution, so that the solution can be effectively avoided from dripping and splashing, the safety is high, the solution rotates inside the bottle body, and the convex piece can improve the stirring effect of the solution, and at the same time, when the solution rotates, it is cut by a plurality of notches, so as to further improve the stirring and mixing effect of the solution, and the use is convenient.

The utility model discloses a chloroform recovery instrument, which comprises a machine body, a chloroform collecting device, a chloroform collecting device and a chloroform collecting device, the heating part is arranged at the bottom of the accommodating part; the supporting base is assembled at the bottom position of the machine body, the flask is matched with the supporting base in a pluggable mode, and a liquid inlet channel is formed between the flask and the supporting base; a chloroform waste liquid container; one end of the liquid inlet pipeline is communicated with the liquid inlet channel, and the other end of the liquid inlet pipeline is inserted below the liquid level of the chloroform waste liquid container; the liquid inlet pump is connected to the liquid inlet pipeline; a tube connector part is formed above the chloroform distillate bottle, and a weighing sensor is arranged at the bottom of the chloroform distillate bottle; one end of the condensing bottle is connected with the top of the flask, and the other end is communicated with the chloroform distillate bottle; and the first negative pressure diaphragm pump is connected with the condensation bottle. According to the chloroform recovery instrument provided by the utility model, automatic liquid taking and automatic distillation separation of chloroform can be realized, and the separation and recovery efficiency is improved.

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.

Sample bottle, in particular milk sample bottle, comprising a bottle body (1) and a holding device (3) of the bottle body (1), wherein the holding device (3) has an electronic tag (4) and a base (11), wherein the base (11) of the holding device (3) is cup-shaped and has a magnetic metal ring (14), characterized in that the cup-shaped base (11) of the holding device (3) is completely filled with adhesive, that the holding device (3) is sealed airtight against the bottle body (1), and that the electronic tag (4) is arranged inside the holding device (3).

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.