Praxair Technology, Inc.

Murat Gunay

Paul K Oetinger

Zachary L Fowler

Stephan Gamard

Lloyd Anthony Brown

Ashwini K Sinha

Ronald F Spohn

Lisa A Fanti

Laurie O'Connor

Serge Marius Campeau

A valve integrated pressure regulator (VIPR) device that can be attached to the outlet of a gas cylinder, which can monitor the amount of gas in the cylinder is provided. Features of the disclosed device include an electronic control, electronic alarm and the electronic display that are powered by rechargeable battery that may be disposed within the VIPR shroud or within a removable cylinder base affixed to a bottom of the gas cylinder. Additional functionality and security features may be provided via additional internally disposed sensors and/or wireless or hard-wired communications with one or more auxiliary devices.

Method and apparatus for controlling gas flow from cylinders

A device that can be attached to the outlet of a gas cylinder, which can monitor and display in digital or analog form the pressure of the gas in the cylinder and the interval of time remaining until the amount of gas in the cylinder will reach a predetermined lower threshold at a given flow.

A device that can be attached to the outlet of a gas cylinder, which can monitor the amount of gas in the cylinder.

A pressure indicating device for detecting and isolating leakage of toxic and/or pyrophoric gasses from within various packages is disclosed. The device can affix to a user port of a cylinder package. The device has a flexible disc-like structure which is fine tuned to outwardly flex in response to a build-up of pressure of the gas exerted against the disc-like structure. The flexed disc contacts a movable pin and pushes the push outwards from within the device. The outward movement of the pin pierces a paper seal extending over the device, thereby indicating a leak from within the valving of the package. The device withstands the pressure exerted against it, thereby also isolating the leak of the pressurized gas.

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Niagara Falls, Canada

Murat Gunay