Where the owner name is not linked, that owner no longer owns the brand
Technical Examples
A dry safety device for an inflammable gas comprises a case main body having a gas passage which terminates at one end in a primary side open port connectable to a source of inflammable gas and terminates at the other end in a secondary side open port connectable to a gas-fired appliance. A spindle undergoes sliding movement in the case main body between an open position for opening the gas passage and a closed position for closing the gas passage, and a spindle spring normally urges the spindle to the open position and permits the spindle to move to the closed position in response to a counter-flow pressure exerted on the spindle by a counter flow of inflammable gas directed from the secondary side open port to the primary side open port. A flame-extinguishing filter disposed in the gas passage extinguishes a back fire that may occur during a counter flow of inflammable gas, and a normally open shutoff valve disposed in the gas passage upstream from the filter closes the gas passage when an ambient temperature exceeds a given value.