Abstract:
A cryostat (110) for use in a biomagnetic measurement system is proposed. The cryostat (110) comprises at least one inner vessel (112) and at least one outer vessel (114), and at least one cavity (126) arranged between the inner vessel (112) and the outer vessel (114), in which negative pressure can be applied to the cavity (126). The inner vessel (112) has a base part (136) and a sidewall (134) connected to the base part (136) in a circumferential connection region (140). The inner vessel (112) has a circumferential strengthening element (142) in the connection region (140), with the strengthening element (142) having a first fiber composite material with a first fibrous material (158) with an anisotropic orientation and with a local preferred orientation, the local preferred orientation being oriented substantially in the circumferential direction of the cryostat (110).
Abstract:
An apparatus for remote inspection of fire extinguishers at one or a system of fire extinguisher stations includes, e.g., at each fire extinguisher station: a detector for lack of presence of a fire extinguisher in its installed position at the fire extinguisher station; a detector for out-of-range pressure of contents of the fire extinguisher at the fire extinguisher station; a detector for an obstruction to viewing of or access to the fire extinguisher at the fire extinguisher station; and a device for transmission of inspection report information from the fire extinguisher station to a remote central station.
Abstract:
A method and related system of filling therapeutic gas cylinders. At least some of the illustrative embodiments are a method comprising determining, by a cylinder fill device, a rated pressure of a therapeutic gas cylinder, and filling the cylinder with the cylinder fill device substantially to the rated pressure.
Abstract:
The invention relates to a method for controlling a homogeneous batch (1) of pressurised fluid cylinders (2) during at least part of the use cycle of said cylinders. According to the invention, each of the cylinders (2) is provided with a valve (3) having an electronic device (4) including at least one sensor (14) for measuring the pressure (P) inside the cylinder (2), a system (44) for storing/acquiring and processing data and an electromagnetic wave transmitter (34), for example using radio frequency, designed for the remote transmission of at least one of the following items of information: the identity of the cylinder (2) and the pressure (P) measured inside said cylinder. The method includes a transmission step in which all of the cylinders (2) in the batch (1) transmit at least one item of information of the same type when they are in the same phase of the use cycle at the same time and a step in which the same-type items of information transmitted by the cylinders are compared for the automatic detection of an anomaly in the batch (1).
Abstract:
A protective sleeve for gas bottle valve stems is provided comprised of an elongated tubular body configured to fit on a valve stem. A projection extends from an interior surface of the protective sleeve and is adapted to lockingly engage with an orifice in an opposing surface of the valve stem whereby the sleeve is prevented from being easily removed from the valve stem upon being placed thereover due to engagement of the projection with the orifice. A tear strip is provided within a side surface of the protective sleeve, whereby a portion of the protective sleeve may be removed to permit disengagement of the protective sleeve. A housing may be provided in the protective sleeve for storage of a washer which may be used to provide a seal between a regulator and the valve stem of the gas bottle.
Abstract:
Apparatus and method for dispensing a gas using a gas source coupled in selective flow relationship with a gas manifold. The gas manifold includes flow circuitry for discharging gas to a gas-using zone, and the gas source includes a pressure-regulated gas source vessel containing the gas at superatmospheric pressure. The pressure-regulated gas source vessel can be arranged with a pressure regulator at or within the vessel and a flow control valve coupled in flow relationship to the vessel, so that gas dispensed from the vessel flows through the regulator prior to flow through the flow control valve, and into the gas manifold. The apparatus and method permit an enhancement of the safety of storage and dispensing of toxic or otherwise hazardous gases used in semiconductor processes.
Abstract:
A storage vessel comprises a condenser for condensing boil-off vapor by direct heat exchange with cryogenic liquid feed to the vessel. The condenser comprises a packed arrangement of vapor-liquid contact packing that comprises a top end portion and a bottom end portion. At least said top end portion is open to the vapor space to allow entry of boil-off vapor into the arrangement. The bottom end portion is in fluid flow communication with the lower portion of the storage vessel. One advantage of the invention is that the condenser is open to the vapor space of the storage vessel thereby allowing boil-off vapor to be drawn into the condenser by the condensation action of the vapor.
Abstract:
A propane gas container assembly includes a bottle adapted for containing about 16.4 ounces of propane gas having a substantially circular outlet nozzle for exiting propane gas, on which a plurality of threads are formed, and a cap having a circular top section, a substantially circular sidewall extending from the top section, and a plurality of threads formed on an internal surface of the sidewall for complementary engagement with the threads formed on the exterior surface of the outlet nozzle of the bottle. A rubber sealing member is positioned on the internal surface of the top section of the cap, and is adapted for forming a substantially gas tight seal to prevent the escape of propane gas from the bottle when the cap is threadingly engaged to the outlet nozzle of the bottle. The rubber sealing member can cover the entire internal surface of the top section of the cap, and can be made of nitrile.
Abstract:
The present invention provides for an integrated valve regulator assembly that comprises an integral body having a base portion that includes an axis for mounting on and coaxially with the neck portion of a pressurized source vessel and an assembly outlet, a defined internal passage in the integral body that extends through and between the base portion of the integral body and the assembly outlet, a sub-atmospheric pressure regulator assembled within the integral body of the integrated valve regulator assembly, an isolation valve positioned within the defined internal passage of the integral body and located downstream from and in communication with the sub-atmospheric pressure regulator, and a filling port disposed between the axis for mounting on and coaxially with the neck portion of the pressurized source vessel and the sub-atmospheric pressure regulator. The present invention further provides for a system for the controlled storage and dispensing of a hazardous material at sub-atmospheric pressure that comprises a pressurized source vessel and the integrated valve regulator assembly of the present invention. The present invention further provides for an additional integrated valve regulator assembly as described with the exception that the pressure regulator utilized is for super-atmospheric pressure conditions and also a system that comprises a pressurized source vessel and the integrated valve regulator assembly that includes a super-atmospheric pressure regulator.
Abstract:
A pressurized cylinder containment unit is provided. The pressurized cylinder containment unit comprises a support structure including means for receiving a shelf. The shelf receiving means is/are defined along at least a portion of a height dimension of the support structure. At least one shelf is provided for supporting the one or more pressurized cylinders. The at least one shelf is moveably positionable along the height dimension of the support structure. The at least one shelf includes mounting means for selectively mounting to the shelf receiving means of the support structure at different height elevations.