×

Color changing candle

  • US 6,537,335 B1
  • Filed: 10/08/1999
  • Issued: 03/25/2003
  • Est. Priority Date: 10/08/1999
  • Status: Expired due to Fees
First Claim
Patent Images

1. A candle comprising:

  • a) a solid combustible matrix selected from the group consisting of animal waxes, bees waxes, plant waxes and mineral waxes, b) at least one color-fast coloring agent, c) at least one micro-encapsulated reversible thermochromic material, and d) a wick wherein after the candle is lit, the solid combustible matrix includes a melted portion and a solid portion, wherein said coloring agent (s) and said at least one micro-encapsulated reversible thermochromic material are blended into said solid combustible matrix, and wherein said at least one reversible material produces a visible color change in the solid portion of the combustible matrix exposed to heat produced by the candle flame; and

    wherein components (a)-(d) form a homogeneous mixture.

View all claims
  • 2 Assignments
Timeline View
Assignment View
    ×
    ×