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:
May. 09, 2006
Filed:
Jul. 25, 2002
Applicants:
Donald Stapf, Minneapolis, MN (US);
Keith J. Leland, Plymouth, MN (US);
Inventors:
Donald Stapf, Minneapolis, MN (US);
Keith J. Leland, Plymouth, MN (US);
Assignee:
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
A61F 7/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A warming pack includes a container in the form of a pack, pouch, or bag in which reactants for an exothermic chemical reaction are distributed in one or more flexible matrixes that prevent them from shifting. The rate of the reaction is controlled and the reaction is thermally buffered in order that heat be produced at a constant rate.