L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des

Daniel Delatte

Cornelis Klok

Bernard Simon

The cryobiological container comprises a double walled reservoir structure (1) comprising an internal shell (2) having a cylindrical side wall (4) and a bottom wall (5) and forming an internal volume accessible through an upper opening (6) of the same diameter as the cylindrical wall (4), the bottom wall (5) comprising a central support (7) adapted to receive a pivot (8) fixed to the bottom (9) of a rotatable storage container (10) adapted to be received within the internal shell (4) and having a cylindrical side wall (11) of a diameter slightly less than that of the lateral wall (4) of the internal shell (2) and provided at its periphery with a plurality of guiding and centering rollers (15) coacting with the side wall (4) of the internal shell (2). The access opening (6) is preferably closable by a plug carried by a cover structure pivotably mounted on the reservoir structure (1).

Cryobiological container

A canister for specimen holders, includes a receptacle (1) having an upper opening (50) and a rod (3) for supporting the receptacle. A cover (5), supported on a support (8) mounted on the rod (3), is displaceable between a first position, over the opening (50) and a second position freeing the opening. The support (8) is mounted by hooking (10, 11) on the rod (3). A manually releasable lock (18) releasably locks the cover (5) in its first position. The cover (5) is pivotally mounted on the support (8) about a pivot (14) whose axis is parallel to the rod (3).

Canister for specimen holders

A cryogenic reservoir (1) comprising an internal reservoir (2) and an external reservoir (5) with vacuum insulation between them, is provided with a plug-valve (17) in a conduit (12) passing through the external reservoir (5). This plug valve (17) incorporates the trapping agent of the desorption gases, as a getter. In the case of accidental overpressure in the intermediate vacuum space, due to an escape of fluid from the internal reservoir (2), the 'getter' is ejected to a distance with the plug valve (17), which avoids any dangerous reaction between the getter and the cryogenic fluid, which can for example be oxygen.

Cryogenic reservoir

The container includes a shell defining an interior volume and including a main part, peripherally bound by a portion of a main partition and an end part defining a duct giving access to the interior volume, the transverse dimensions of the duct being smaller than those of the main part and being closable by a shutter, and a level detector typically of the capacitive type, permanently disposed in the shell on at least one zone of the portion of the main partition, and connected to an outside box for the treatment of a signal of the detector. Application for example to cryogenic containers.

Container having therein means for detecting levels of liquid

A basket for arranging individual boxes in a cryogenic bath, comprises a vertically elongated body (1) of substantially U-shaped transverse cross section having an open access face (6), a plurality of horizontal transverse dividers (8A, 8B) to support boxes (2), and manually actuable locks for locking the boxes in position in the basket. The locks (9) each comprises a principal portion (10) and an end portion (11) mounted pivotably about a substantially vertically axis on a lateral portion (3B) of the body (1). Each lock is displaceable elastically between a stable locking position in which the principal portion (10) extends across the access face (6), and a stable unlocking position freeing the access face. A cryogenic container (20) receives at least one such basket supported by hooking over a neck (24) of the container (20).

Basket for arranging individual boxes and cryogenic container

The holding container comprises an inner casing and an outer casing of the same or different materials and a cryogenic liquid withdrawing pipe including an inner portion having a section advantageously in the form of adjacent spiral turns, which is kept in resilient contact, typically by means of a spring spacer against the inner face of the other casing, thus enabling to provide heat exchange contact between the section of the first part of the pipe and the outer casing notwithstanding the nature of the materials constituting the pipe and the outer casing. Application for example to self-pressurizable holding containers.

Holding container for cryogenic liquid

Closing device for cryogenic container

A water injection device having a plurality of superposed pipes (13), and a series of tubes (5) for circulating the fluid to be heated, are disposed inside a cylindrical case (6). Interconnecting devices are fixed to the injection device and support the series of tubes, to make the injection device and series of tubes a structurally independent, removable unit. The apparatus is useful for vaporization and heating by circulation of water of liquefied gasses at low temperature such as nitrogen, oxygen, hydrogen, argon, etc.

Fluid heating apparatus

Each module (1) of this device comprises a bin (4), two removable drawers (5) and a removable intermediate partition (7). When the two drawers are in position, tubes (2) of small height can be stored. When the upper drawer and the partition (7) are withdrawn, tubes (3) of greater height can be stored. Each drawer is provided with a grating (6) for laterally maintaining the tubes. Application in the storage of biological specimens in liquid nitrogen.

Growing community of inventors

Saint Maur, France

Daniel Delatte