摘要:
A method for generating a vortex-like mixing action within a liquid held in a container by causing the container to move back and forth in a constant sinusoidal pattern at high speeds. Momentum forces acting upon the liquid solution cause it to generate an internal mixing motion of the liquid solution without the aid of extraneous mixing members.
摘要:
Formula milk preparation apparatus (10) comprises a support structure (12), and first and second containers (14) and (16) supported by the support structure (12). The first container (14) is adapted to hold a liquid, and the second container (16) is adapted to hold powdered formula milk. Means (24) for regulating the temperature of the contents of the first container (14) is provided, as is means (26, 32) for dispensing an amount of content of the first and second containers (14) and (16). Means (56) for mixing together the contents dispensed from the first and second containers, and means for cooling the contents dispensed from the first and second containers to a temperature suitable for consumption are also provided. A method of using the apparatus is also provided.
摘要:
A vibrating machine, specifically designed for extracting, mixing and separating liquid and powder organic and inorganic materials, in liquid or powder form, comprises two shoulders supporting a plurality of test tubes, each shoulder being rigidly coupled to a cam follower, affected by a cam in turn driven by a motor, so as to cause the test tube supporting shoulders to perform a rectilinear reciprocating symmetrically opposite movement.
摘要:
The invention relates to an automated liquid level sensing system for detecting the presence of liquid in a container, said liquid level sensing system comprising: a vertically oriented, electrically conductive probe positioned above said container; means for vertically moving said probe into and out of said container; a signal source electrically connected to said probe, said signal source energizing said probe with an electrical signal and causing said probe to transmit said electrical signal; a receiving antenna positioned below said container for receiving said transmitted electrical signal; means for analyzing said received electrical signal for indications that said probe has contacted liquid in said container; means for transferring said received electrical signal from said receiving antenna to said analyzing means; and means for indicating that liquid has been detected. Further, the invention also provides for a method for automatically detecting the presence of liquid in a container, said method comprising the steps of: vertically positioning an electrically conductive probe above said container; vertically moving said probe into and out of said container; electrically connecting a signal source to said probe, said signal source energizing said probe with an electrical signal and causing said probe to transmit said electrical signal; positioning a receiving antenna below said container for receiving said transmitted electrical signal; analyzing said received electrical signal for indications that said probe has contacted liquid in said container; transferring said received electrical signal from said receiving antenna to said analyzing means; and indicating that liquid has been detected.
摘要:
An automated, continuous and random access analytical system, having apparatus and methodology capable of simultaneously performing multiple assays of liquid samples using different assay methodologies, and providing continuous and random access while performing a plurality of different assays on the same or different samples during the same time period, is disclosed. A method is also disclosed of operating an automated continuous and random access analytical system capable of simultaneously effecting multiple assays of a plurality of liquid samples wherein scheduling of various assays of the plurality of liquid samples is followed by creating a unit dose disposable and separately transferring a first liquid sample and reagents to a reaction vessel without initiation of an assay reaction sequence, followed by physical transfer of the unit dose disposable to a processing workstation, whereby a mixture of the unit dose disposable reagents and sample are achieved during incubation. The system is capable of performing more than one scheduled assay in any order, and assays where more than such scheduled assays are presented. The automated, continuous and random access analytical system is also capable of analyzing the incubated reaction mixtures independently and individually by at least two assay procedures.
摘要:
A method of removing phosphoric acid contained in wastewater which comprises comprehensively immobilising calcium or a compound thereof with a solid polymer optionally together with magnetite and contacting the calcium-containing polymer with the wastewater to react with the phosphoric acid contained in the wastewater with the calcium and thereby yield calcium apatite.
摘要:
A reciprocating laboratory shaker (10) includes a platform (12) driven by a motor (62) which is constrained to move in a reciprocating fashion by a pair of flexible bands (30, 32) located on opposite sides of the platform (12). A frame (24), which preferably supports the drive motor (62), includes a pair of upright supports (28) which are attached to a pair of wide, but thin, flexible plastic bands (30, 32) at least at two locations. Each of the two flexible bands (30, 32) includes a pair of rollers (34, 36, 38, 40) attached to the inside surface (50) of the bands (30, 32). The laboratory platform (12) is attached to the remaining outside face (52) of the bands and is driven by the drive motor (62) having an appropriate crank mechanism (54). The two flexible bands (30, 32) constrain the motion of the platform (12) to substantially a single direction, x, while preventing it from moving in either the y or z directions.