The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 06, 2007
Filed:
Jul. 22, 2003
Chandra Kumar Banerjee, Clemmons, NC (US);
Sheila Lynnette Cash, Greensboro, NC (US);
Thomas Leeroy Gentry, Hickory, NC (US);
Joanne Naomi Taylor, Germanton, NC (US);
Patty Ferguson Turner, Winston-Salem, NC (US);
Chandra Kumar Banerjee, Clemmons, NC (US);
Sheila Lynnette Cash, Greensboro, NC (US);
Thomas Leeroy Gentry, Hickory, NC (US);
Joanne Naomi Taylor, Germanton, NC (US);
Patty Ferguson Turner, Winston-Salem, NC (US);
R. J. Reynolds Tobacco Company, Winston-Salem, NC (US);
Abstract
A non-combustion, chemical heat source includes a heat chamber having a closed end and an open end. The heat chamber includes an apertured heat cartridge disposed at the open end of the chamber, an abutment disposed at the closed end of the chamber, an activating solution, a frangible seal separating the activating solution and the heat cartridge. The heat cartridge includes metallic agents that may come in a variety of configurations. The heat source is activated when the heat cartridge is pushed through and breaks the frangible seal allowing contact between the metallic agents and the activating solution. The heat cartridge includes an aperture in the bottom of the cartridge and absorbent paper surrounding the metallic agents, both of which control the transfer of the activating solution into the metallic agents to cause the chemical reaction. The heat sources may be incorporated into smoking articles and may also be used to heat foods or beverages, in hand warmers, and to heat equipment or materials.