Abstract: A device and method for separating serum or plasma from blood cells in a whole blood specimen. The present invention uses a cap with a reservoir, such that blood cells are packed into the cap when the specimen container is centrifuged. When the cap is removed, the blood cells are also removed, and the serum or plasma is left in the specimen tube where it can be readily extracted by a pipette which is able to reach all the way to the bottom of the specimen tube minimizing the dead volume.

Abstract: A storage container or storage vessel is provided that includes an opening at its bottom or base. A lid element is provided at the bottom or base of the container/vessel that is movably mounted relative to an opening into the enclosed volume of the container/vessel. A clamping mechanism is associated with the body and lid of the container/vessel so as to releasably lock/secure the lid relative to the body. The body of the container/vessel features an aesthetically and/or artistically desirable shape or design that enhances the appeal and uniqueness of the container/vessel. The lid element of the container/vessel functions as the base of the container/vessel, thereby allowing the entirety of the body of the container/vessel (or such percentage as may be selected in a specific embodiment) to be incorporated into the aesthetically/artistically pleasing body design.

Abstract: A centrifuge labware includes a container and a removable, non-threaded lid. The container has a top opening which is at least about 90% of the cross-sectional area of the container.

Abstract: An airtight canister including (a) a ceramic container having an open top, a bottom and an annular groove adjacent to the bottom; (b) an acrylic cover having an annular rim; (c) an annular rubber gasket wrapped on the annular rim of the cover; (d) an elongated elastic cord having two ends; (e) a wave shaped hook linked to said cord between the two ends; and (f) a generally ".pi."-shaped connecting member connected between the two ends of said cord and said cover; (g) so that when the cover is placed onto the open top of the container and the hook is retained by the annular groove adjacent to the bottom of the container, the tension of the elastic cord will maintain a pressure on the cover through the connecting member, which in turn creates an airtight coverage with the help of the gasket.

Abstract: The present invention is an airtight canister. The airtight canister comprises a ceramic container and an acrylic cover. The ceramic container has an open top, a bottom and an annular groove adjacent to the bottom. The acrylic cover is secured on the ceramic container by an elongated cord and a wave-shaped hook. The elongated cord has two ends interconnected by a coil spring which creates a tension on the cord, and the hook is linked to the cord between its two ends. A generally ".pi."-shaped member is mounted on the cover and has an inner chamber for retaining the coil spring and the two ends of the elongated cord. When the cover is placed onto the open top of the container and the hook is retained by the annular groove adjacent to the bottom of the container, the tension on the cord created by the coil spring will remain a pressure on the cover through the connecting member, which in turn creates an airtight coverage.

Abstract: Improvements to juice extractor machines for fruit and vegetables, whereby a pestle (10) with a notch (15), a discharge conduit (16) with a great discharge capacity and a safety device with two double levers (21-26) for closure of the cover (23) of the chamber (24) cooperate with the extraction chamber (24).Juice extractor machines for fruit and vegetables, which employ the improvements of a pestle (10) with a notch (15), a discharge conduit (16) with a great discharge capacity and a safety device with two double levers (21-26) for closure of the cover (23) of the chamber (24).