CHEMICAL HEATING PAD WITH DIFFERING AIR-ADMITTING PERFORATION SETS FOR HEAT-GENERATION LEVELS

摘要

Abstract of the DisclosureA heating pad (10,20,30) of the type having aparticulate chemical mixture (40), which is exothermicallyreactive in the presence of air, and a pair of opposedpanels (22,24; 72,74) forming an envelope containing themixture and admitting air to support the reaction.Differing sets of perforations (34,36,64,66,89) in theopposed panels allows the pad to generate two levels ofheat and allows opposed body-contact surfaces of the pad toapply two different heat conditions to the human body.