| US 7,497,685 B2 | ||
| Wick-holder assembly | ||
| Chris A. Kubicek, East Troy, Wis. (US); and Cory J Nelson, Racine, Wis. (US) | ||
| Assigned to S.C. Johnson & Son, Inc., Racine, Wis. (US) | ||
| Filed on Jul. 20, 2005, as Appl. No. 11/185,174. | ||
| Prior Publication US 2007/0020574 A1, Jan. 25, 2007 | ||
| Int. Cl. F23D 13/34 (2006.01) | ||
| U.S. Cl. 431—298 [431/34; 431/102; 431/282; 431/288; 431/292; 362/161; 362/190; 362/447; 362/382; 362/433] | 6 Claims |
| 1. A wick-holder assembly, comprising:
a wick-retention member for retaining a wick in an operative position extending from a base portion; and
a heat-conductive element extending from the base portion, wherein the heat-conductive element comprises a first portion made
substantially of a first material and a second portion made substantially of a second material, the first material and second
material comprise materials of different thermal expansion coefficients, and a portion of the heat-conductive element is arranged
to move in response to a flame disposed on the wick;
wherein the base portion is adapted to be disposed on a support surface therefor such that a capillary space is formed therebetween
that extends to the wick, and wherein the movement of the heat-conductive element in response to the heat generated by the
flame affects a dimension of the capillary space and thereby regulates flow of a fuel through the capillary space to the wick.
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