초록 ▼

An autogenous portable apparatus is described for welding and oxygen cutting operations which uses a combustible gas fuel and oxygen derived from the decomposition of hydrogen peroxide flowing through a catalyst of lead chips. The catalyst is positioned to allow priming by initial quantities of hydr

An autogenous portable apparatus is described for welding and oxygen cutting operations which uses a combustible gas fuel and oxygen derived from the decomposition of hydrogen peroxide flowing through a catalyst of lead chips. The catalyst is positioned to allow priming by initial quantities of hydrogen peroxide to be injected into the catalyst by the action of gravity. Once oxygen is formed the pressures thereof are fed back to the container holding the hydrogen peroxide thereby pressurizing the same and cause increasing quantities of oxygen to be produced until the desired level has been reached. Condensers are provided to condense the water vapor also formed in the conversion process to purify the oxygen prior to use thereof at a welding torch. A fluid control valve regulates the flow of the hydrogen peroxide at a rate inversely to the pressure of the oxygen to thereby maintain the pressure below a maximum predetermined value.

대표청구항 ▼

Autogenous portable welding apparatus comprising a container for receiving a readily decomposable liquid capable of yielding a combustible gas; conversion means having an input thereof connected to said container for receiving the decomposable liquid and for effecting conversion at a rate which is a

Autogenous portable welding apparatus comprising a container for receiving a readily decomposable liquid capable of yielding a combustible gas; conversion means having an input thereof connected to said container for receiving the decomposable liquid and for effecting conversion at a rate which is a function of the rate of flow of the decomposable liquid thorough said conversion means; means for selectively releasing the combustible gas to a torch; conduit means for transmitting the increased pressures developed at the output of said conversion means during the conversion process to said container to increase the rate of flow of the decomposable liquid through said conversion means; and liquid flow control means disposed between said container and said conversion means for regulating the flow of the decomposable liquid through said conversion means as a function of the pressure in said container to thereby maintain a desired gas generation rate.