Abstract:
A gas mixing device and method for filling gas storage cylinders with two or more diverse gases and automatically mixing the gases. A high pressure cylinder valve has an elongate hollow tube welded into the valve body and extending to the lower end of a storage cylinder. A plurality of holes through the tube sidewalls is distributed in a spiral along the length of the tube. Each gas is filled in order of its final pressure and distributed along the length of the cylinder thereby mixing with the other gases.
Abstract:
A pressure release valve is located in the domed bottom of an aerosol can. A centrally located area in the domed bottom having a lesser resistance to eversion than the peripheral area in the domed bottom includes several score lines which meet at a common point in a spoke-like configuration. The centrally located area of the bottom will evert at a pressure of 170 to 200 p.s.i. so as to rupture the bottom at the source lines before any substantial eversion of the peripheral area occurs.
Abstract:
A pressure release valve is located in the domed bottom of an aerosol can. A centrally located area in the domed bottom having a lesser resistance to eversion than the peripheral area in the domed bottom includes several score lines which meet at a common point in a spoke-like configuration. The flat area of the bottom will evert at a pressure of 170 to 200 p.s.i. so as to rupture the bottom at the score lines before any substantial eversion of the peripheral area occurs.
Abstract:
A retaining ring assembly. A retaining ring which is adapted to be positioned between a propellant cartridge of an aerosol dispenser, which cartridge has particles of propellant-adsorbent material therein, and a stem-obturating gasket of the dispenser has an annular cutting edge on the bottom thereof. The retaining ring is dipped in adhesive and pressed against a sheet of filter material so that the disc-shaped filter element thus cut out of the sheet is secured in the retaining ring. The retaining ring assembly is then assembled with the remainder of the dispenser.
Abstract:
Fluid dispensing assemblies are disclosed, for use in fluid supply packages in which such fluid dispensing assemblies as coupled to fluid supply vessels, for dispensing of fluids such as semiconductor manufacturing fluids. The fluid dispensing assemblies in specific implementations are configured to prevent application of excessive force to valve elements in the fluid dispensing assemblies, and/or for avoiding inadvertent or accidental open conditions of vessels that may result in leakage of toxic or otherwise hazardous or valuable gas. Also described are alignment devices for assisting coupling of coupling elements, e.g., coupling elements of fluid supply packages of the foregoing type, so that damage to such couplings as a result of misalignment is avoided.
Abstract:
The invention relates to a protective cap for gas container, comprising a cap body forming a protective shell delimiting an internal volume designed to accommodate all or part of the valve-assembly, and an attachment device able to pivot between several angular positions, comprising a rest position in which the attachment device is fully folded, and an attachment position in which the attachment device is completely unfolded. The attachment device comprises a three-dimensional structure comprising two arms each bearing a cutout for fixing to a support, the said three-dimensional structure comprising an interior face shaped to conform to the exterior profile of the body of the cap when the attachment device is in the rest position.
Abstract:
The invention relates to a pressurised fluid container, in particular a pressurised gas cylinder, comprising a body (1) forming a sealed storage volume for the fluid. According to the invention, a first end of the body (1) comprises an opening (2), while a second end of the body (1) comprises a base (3) secured to the body (1). The body (1) is formed by a metal material, a metal alloy or aluminium. The container is characterised in that the base (3) comprises a metal material, a metal alloy or an aluminium alloy having an electronegativity on the Pauling scale that is greater than that of the material forming the body (1). The invention also relates to a method for the production of such a container.