105results about "Flasks" patented technology

A cyclone dust-collector which filters out dust and dirt from drawn-in air at least two times, comprising a multiple cyclone unit having a first cyclone and a plurality of second cyclones arranged at the outside of the first cyclone, for centrifugally separating the dust and dirt from the drawn-in air; a cover unit connected to the upper portion of the multiple cyclone unit, for allowing the first and the second cyclones to separating communicate with each other; and a dirt-collecting unit connected to the lower portion of the multiple cyclone unit, for collecting therein the dust and dirt centrifugally separated.

A device for minimizing the formation of bubbles or foam in cell culture is disclosed. The device has a manifold which directs the inflow of cells and cell culture media into a cell culture vessel so as to allow for displaced air or gas to vent from the cell culture vessel without mixing with the incoming cell culture media, thereby preventing the mixing of air and cell culture media and minimizing the formation of bubbles or foam inside the cell culture vessel.

A reagent container used for automatic analysis in an automatic analyzer, which enables reagents to be set with ease and which can increase flexibility in selecting combinations of the reagents. In an automatic analyzer for analyzing components of a biological sample by using two or more kinds of reagents, reagent containers containing the two or more kinds of reagents are jointed into one reagent cassette with the aid of a recess and a projection provided in and on the reagent containers, a reagent holder, bonding, tape binding, etc. Thus, a plurality of reagents used for one analysis item are combined with each other in one cassette corresponding to one analysis item. A reagent container for use in automatic analysis, which is easy to handle and highly flexible in setting of reagents, can be provided.

A foam reducing or eliminating container for containing a liquid includes: a container body having a top portion, a bottom portion and an opening for adding a liquid to or removing a liquid from the container body; and a hollow baffle located within the container with first and second openings therein. The first and second openings are covered with a pierceable seal, wherein the first opening of the baffle is at least partially aligned with the opening of the container. In a preferred embodiment, the container is a reagent supply container for an automated analyzer, which includes: a container as described above; and a closure which is movable away from the opening of the container to be in an open position and movable into contact with the opening to be in a closed position. In another preferred embodiment a reagent supply for an automated analyzer includes: the reagent supply container as described above; and a liquid reagent therein. The second opening of the baffle is submerged in liquid. A method for reducing or eliminating the aspiration of foam into a metering probe includes: providing a reagent supply as described above; providing a metering probe movable in a direction toward and away from the reagent supply; moving the closure away from the opening of the container; piercing both seals covering the first and second openings of the baffle allowing liquid to enter the baffle from the end of the baffle submerged in the liquid, wherein the seals may or may not be pierced with the metering probe; moving the metering probe into the first opening of the baffle and into contact with the liquid in the baffle; aspirating a selected amount of liquid in the baffle; and moving the metering probe out of the baffle.

A container is provided for cell growth by artificial cultivation of selected biological material in a growth liquid for use in an oscillating incubator. The container has a circular bottom with rounded corners joining a sidewall that is inclined at an angle toward a longitudinal axis of the container to define a container volume. The bottom has six equally spaced baffles extending inward from the corners and upward toward a large diameter opening of the container centered on the longitudinal axis. The baffles have a triangular cross-sectional shape with an included angle of about 28–40°, and a height measured parallel to the longitudinal axis of about 15–25% of the usable container volume. The baffles end before the longitudinal axis. The container and baffles are blow molded of a polymer suitable for blow molding. An air permeable filter is placed over the container opening, with the filter having an adhesive on one side to stick to the container. A finger tab on the periphery of the filter helps position and remove the filter.

A foam reducing or eliminating container for containing a liquid includes: a container body having a top portion, a bottom portion and an opening for adding a liquid to or removing a liquid from the container body; and a hollow baffle located within the container with first and second openings therein. The first and second openings are covered with a pierceable seal, wherein the first opening of the baffle is at least partially aligned with the opening of the container. In a preferred embodiment, the container is a reagent supply container for an automated analyzer, which includes: a container as described above; and a closure which is movable away from the opening of the container to be in an open position and movable into contact with the opening to be in a closed position. In another preferred embodiment a reagent supply for an automated analyzer includes: the reagent supply container as described above; and a liquid reagent therein. The second opening of the baffle is submerged in liquid. A method for reducing or eliminating the aspiration of foam into a metering probe includes: providing a reagent supply as described above; providing a metering probe movable in a direction toward and away from the reagent supply; moving the closure away from the opening of the container; piercing both seals covering the first and second openings of the baffle allowing liquid to enter the baffle from the end of the baffle submerged in the liquid, wherein the seals may or may not be pierced with the metering probe; moving the metering probe into the first opening of the baffle and into contact with the liquid in the baffle; aspirating a selected amount of liquid in the baffle; and moving the metering probe out of the baffle.

A container is provided for cell growth by artificial cultivation of selected biological material in a growth liquid for use in an oscillating incubator. The container has a circular bottom with rounded corners joining a sidewall that is inclined at an angle toward a longitudinal axis of the container to define a container volume. The bottom has six equally spaced baffles extending inward from the corners and upward toward a large diameter opening of the container centered on the longitudinal axis. The baffles have a triangular cross-sectional shape with an included angle of about 28-40°, and a height measured parallel to the longitudinal axis of about 15-25% of the usable container volume. The baffles end before the longitudinal axis. The container and baffles are blow molded of a polymer suitable for blow molding. An air permeable filter is placed over the container opening, with the filter having an adhesive on one side to stick to the container. A finger tab on the periphery of the filter helps position and remove the filter.

An apparatus and method for use in the biopharmaceutical and chemical industries to facilitate the temporary attachment of standard laboratory glassware to vibratory mixers and other types of aggressive shaking equipment. The container holder couples the entire flask or container to the mixing equipment in a secure fashion. The technology may be used with conventional glass flasks, or with plastic flasks that can be configured for either single-use or multiple-use. The invention allows for single handed, low force insertion of the flaskware as well as the incorporation of sensors into the container holder.

The present invention relates to plastic disposable supplies used in medical, biological, chemical and biochemical industries and laboratories. The disposable products of the present invention are manufactured by using a novel biodegradable plastic with composition modified from polylactic acid (PLA) plastic and additives under specific injection / blow molding conditions, thus possessing superior physical and chemical properties and being able to be degraded in nature without causing environmental contamination.

The present invention provides a reagent container for automatic analysis, which can easily set a medical solution in a reagent container of an automatic analysis device and has a degree of freedom in combination. In an automatic analyzer for analyzing components of biological reagents using two or more reagents, by providing a reagent cartridge that is combined with unevenness provided on the reagent container, a reagent container holding device, bonding, tape fixing, etc. In this way, a plurality of reagents are collected into one box, and two or more reagents are used as one item, thereby providing a simple reagent container for automatic analysis with a degree of freedom.

A hotplate with a stainless steel top plate to support a vessel. The stainless steel top plate has an upper surface with a substantially centrally located depression having a depth and area generally sufficient to absorb upward crowning of the top plate when heated. A heating unit is in a heat transfer relation with the stainless steel top plate, and a base unit is connected to the heating plate assembly; however, the base unit is not fastened directly to the stainless steel top plate, so that the stainless steel top plate can expand more uniformly when heated.

A reaction vessel support device for mounting on a magnetic stirrer hotplate. The modular device comprises a base unit capable of positioning and seating at the reaction hotplate, and an insert formed non-integrally with the base unit comprising a reaction vessel receiving portion capable of seating and locating about a portion of a reaction vessel. At any one time, the base unit is capable of accommodating a plurality of different shaped and sized inserts each insert being configured to seat and support a specific reaction vessel of particular shape and size. The device therefore serves as a magnetic stirrer hotplate adapter.

A vessel with an engaging configuration for facilitating supporting the vessel on a supporting structure, such as for example, a surface, tray, agitator, stirrer, or other processing device, which has a corresponding matingly engagable structure for engaging with the vessel engaging configuration.

A plastic lab bottle created by an injection blow molding process comprises the steps of injecting plastic into a first mold from the plastic lab bottle bottom to form a preformed plastic lab bottle; blowing the preformed plastic lab bottle into a second mold by injecting air into the preformed plastic lab bottle through the mouth opening of the preformed plastic lab bottle; ejecting the finished plastic container from the second mold; providing a plastic cap for closing the bottle; and pulling the tether ring over the neck ring of the bottle.

A method of covering an opening in a laboratory container with aluminum foil to provide a heat-resistant and solvent-resistant closure. The method includes the steps of: providing a preformed aluminum foil cup of sufficient size to cover the container's opening, in which the foil is less than 2.5 mils thick and is free of any substance that could contaminate the laboratory container, in which the cup includes a bottom wall and a raised perimeter sidewall continuous with, and surrounding the bottom wall; inverting and placing the cup over the opening; optionally adjusting the shape and diameter of the cup so as to fit over the opening, and compressing the sidewall of the cup to a friction fit around the opening.

An apparatus and method for observing a chemical substance. In one embodiment, the apparatus includes a vessel having a base portion and an at least partially transparent wall portion depending from and extending away from the base portion. The base portion and the wall portion define an interface region at an interface between the base portion and the wall portion. The vessel can further include a background material fixedly attached to the base portion and / or the interface region, with the background material having a surface visible through the wall portion from a region exterior to the vessel. The background material can be attached to an inner surface or an outer surface of the vessel, or the background material can be integrated with a medium that forms the base portion and the wall portion of the vessel. The background material can have a single color, such as white or black, or the background material can have a plurality of hues to make the contents of the vessel more clearly visible.

A light-oil separator device includes a collector funnel having a downwardly directed stem portion having an outside diameter. The stem portion adapts to insert in an upward extending neck portion of a collection vessel. The neck portion includes an inner diameter that is greater than the outer diameter of the funnel stem. The neck also includes an oil port at a first height. The vessel includes a body having a hydrosol port at a lower portion of a body sidewall. This port connects to an evacuation tube having a proximal end and an S-shape. This conduit includes an air vent at a top portion at a second height lower than the first height, the air vent extends upward to a height higher than the first height. The S-shape conduit terminates with a downward facing end portion at its distal end.

It is composed of a heating body ( 1 ), made from material resistant to corrosion and high temperatures, with a cylindrical top and a spherical cap for a bottom, around which, in its outer upper part, is placed a plated resistor, or heating blanket ( 2 ), the action whereof will cause the heating of the heating body, in whose inner space the flask which is to be heated is placed. Said heating body has an upper flange, by way of a circular hoop ( 3 ), which is fastened between two flat circular rings ( 4 - 5 ), made of a material with high thermal insulation capacity, an upper cover ( 6 ) being placed on these rings, the central circular orifice whereof is completely in line with the top of the heating body ( 1 ). An insulating screen ( 8 ) is placed therein which goes around the whole of the heating body ( 1 ), laterally and below, all the inner space of the apparatus being filled with wool or thermal insulating shavings ( 9 ). There is an electronic control module ( 11 ), acting from the exterior ( 11 a) of the chassis.

Evaporation control for a fluid supply, such as used in a clinical analyzer, can be provided by utilizing a straw-like insert which is disposed into a fluid-containing bottle. The straw provides an increased diffusion length or “stagnant” zone. The bottle can also be configured to effectively reduce evaporation in a similar manner by providing a narrowed diameter prior to the fluid retaining portion of the bottle and by increasing the distance between the top of the bottle and the top of the fluid surface.

A reaction block for mounting various round bottom flasks upon a laboratory, magnetic hot plate stirrer. An aluminum inner flask holder effectively conducts heat and does not interfere with a magnetic flux. A solid heat insulating material substantially surrounds and is spaced from the flask holder, in order to keep the reaction block at a safe temperature and provide easy gripping surface regions that extend completely around its circumference.

The invention relates to a split type splashing-proof flask device. The split type splashing-proof flask device comprises an upper main body, a lower main body, a splashing-proof flow guiding plate and a rubber sealing ring, wherein the upper main body and the lower main body are connected by threads, the splashing-proof flow guiding plate is fixed at a flask mouth of the upper main body, and a sealing device is arranged at the junction of the upper main body and the lower main body. The device has the advantages that the problem that flasks cannot contain bulk solid reactants is excellently solved, the problem of liquid splashing due to the fact that a flow guiding rod is required to be used during liquid adding is solved, and the problem that the flasks are difficultly cleaned after carrying out chemical experiments is also solved, so that the practicability is very strong.

The innovative glass flasks have a standard taper outer joint to fit the most commonly used glassware in chemical laboratories. Unlike the round bottom flasks, the innovative flasks with an external flat bottom can be kept upright on the bench without the flask holder support. The flasks can be held by a corresponding shaped cooling block or heating block to perform multi-flask reactions simultaneously on a magnetic hot plate stirrer without the use of clamps at various temperatures. It also ensures that the magnetic stir bars spin consistently and efficiently on a flat or a shallow hemispherical bottom when the flasks are offset from the center of the magnetic stirrer. The flasks can also resist fracturing under vacuum for solvent distillations.

The invention relates to an anti-splashing flask, which comprises an upper bottle body, a lower bottle body and an independently arranged anti-splashing frame, wherein the upper bottle body and the lower bottle body are connected in a matched manner, the lower edge of the upper bottle body is provided with a circle of an annular projection edge, the upper end of the lower bottle body is provided with a concave groove capable of being connected to the projection edge in a matched manner, the upper end of the anti-splashing frame is provided with a concave groove capable of being connected to the projection edge in a matched manner, the lower end of the anti-splashing frame is provided with a projection edge capable of being connected to the concave groove in a matched manner, an inlet for conveniently feeding a liquid is arranged in the middle of the anti-splashing frame, support columns are annularly arranged in the inlet in an array manner, a columnar anti-splashing block coaxial withthe anti-splashing frame is connected between the support columns, a hollow inverted conical anti-splashing sleeve is arranged at the lower end of the anti-splashing frame, and a liquid inlet is arranged at the lower end of the anti-splashing sleeve. Compared to the anti-splashing flask in the prior art, the anti-splashing flask of the present invention has advantages of clever structure and convenient use, can effectively solve the technical problems, and can ensure the complete use of the flask in various situations.

The invention discloses a device for heating a spherical distilling flask, comprising: a frame, a heating wall for displacing the spherical distilling flask, an insulating board, and a control and regulation device, and further comprising: a spring carriage which vertically moves along the frame and is connected with the heating wall by a spring including fixing force to drive the heating wall to vertically move to an operating position or a ceasing position; a control device for controlling the spring carriage to vertically move along the frame; a stopping device which is mounted on the frame elastically and located at a connecting position, the heating wall is restricted at the operating position; when located at a separating position, the heating wall resets to the ceasing position.

The invention relates to a novel splashing-proof flask device. The novel splashing-proof flask device comprises an upper main body, a lower main body, a splashing-proof flow guiding plate and a rubber sealing ring, wherein the upper main body and the lower main body are connected by threads, the splashing-proof flow guiding plate is fixed at a flask mouth of the upper main body, and a sealing device is arranged at the junction of the upper main body and the lower main body. The splashing-proof flask device further comprises a water suction device, wherein the water suction device is arranged on the sealing device. The device has the advantages that the problem that flasks cannot contain bulk solid reactants is excellently solved, the problem of liquid splashing due to the fact that a flow guiding rod is required to be used during liquid adding is solved, and the problem that the flasks are difficultly cleaned after carrying out chemical experiments is also solved, so that the practicability is very strong.