Patent ID: 8172888

Claim:
A thermal pack for conducting heat relative to the skin of a user comprising: a thermoplastic container including a linear plurality of adjacent enclosed compartments having a skin side and a distal side, said sides meeting at a periphery of the container and intermediate each compartment thereby enclosing the compartments, said compartment containing a thermal component, and said container periphery having a lip extending in a plane outwardly of the periphery, said lip fixedly formed such that a distal end of said lip extends angularly away from the plane of the periphery by an angle of at least about 20° from said skin side of said compartment to thereby prevent said distal end of said lip from coming into contact with the user, and said plurality of said adjacent compartments having therein an opening forming a normally closed valve between said adjacent compartments whereby said thermal component may be induced to flow from one compartment to an adjacent compartment by application of external pressure to a selected individual compartment.