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US 4,062,655 AGranted
Artificial fire place logs which burn with colored flame and process for making same
AssigneeBusiness Controls, Inc.
InventorWilliam Hughes Brockbank
Life of this patent
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AssigneeBusiness Controls, Inc.
InventorWilliam Hughes Brockbank
Estimating the term…
An artificial fireplace log containing pyrogenic coloring matter which produces colored flames upon ignition of the log continuously until the log is consumed. The log is composed of combustible materials, preferably sawdust and wax, and contains pyrogenic coloring matter distributed throughout the log mix. Additional pyrogenic coloring matter is adhered to the surface of the log, preferably along two adjacent longitudinal sides corresponding to the top and front of the log as it is positioned in a fireplace. The process of the invention includes the steps of preparing an artificial log mix containing pyrogenic coloring matter, molding an artificial log with the mix, and adhering pyrogenic coloring matter, preferably in the form of dry, finely-divided particles, along the surface of the log.
An artificial log having pyrogenic flame coloring matter, comprising a shaped, hardened mixture of combustible materials having an effective amount of pyrogenic flame coloring matter distributed within the mixture, and having an additional effective amount of pyrogenic flame coloring matter superficially adherent to the surface thereof.
A process for producing artificial logs exhibiting colored flames when burned, comprising the steps of:
Dependencies are inferred from the claim text.