Filter for gas lighter and method for producing the same
AssigneeYaka Feudor K.K.
InventorToshiyuki Suzuki
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Abstract
Forming a filter for a gas lighter using a sintered porous ceramic, and adjusting the flow rate of gas through gas passages formed by interparticle pores of ceramic. There will be no change in the flame length even in the use of the gas lighter over a long period, thereby enhancing the safety of the gas lighter.
Claims35
A filter for a gas lighter, constituted by a sintered porous ceramic having interparticle pores, wherein the particles of the porous ceramic are spherical.
A method for producing a filter for a gas lighter, which method comprises adding a binder to a ceramic powder of spherical particles containing not less than 80% by weight of particles which are in the range of 0.5 to 10 .mu.m in diameter, granulating the resulting mixture to obtain secondary particles, then molding the resulting secondary particles, and calcining the molded product.
A method for producing a filter for a gas lighter, which method comprises passing a fine fireproof powder of a metal oxide through a high-temperature atmosphere to melt and sphere the powder, adding an appropriate amount of a binder to the resulting spherical particles of the powder, molding the resulting mixture, and thereafter calcining the molded product.
A filter for a gas lighter, having a cylindrical body formed of a porous ceramic having gas permeability, at least the underside of said cylindrical body being coated with a porous fluorine resin film.
A method for producing a filter for a gas lighter, which method comprises coating at least the underside of a cylindrical body formed of a porous ceramic having gas permeability with a dispersion of a fluorine resin, and thereafter heating the thus-coated cylindrical body.
Dependencies are inferred from the claim text.