A - Human Necessities – 43 – B
Patent
A - Human Necessities
43
B
A43B 21/00 (2006.01) A43B 21/22 (2006.01)
Patent
CA 2054385
7852MR Abstract of the Disclosure A shoe sole is formed in the heel with a cavity that is compressible to relatively small volume when the heel is pressed down and that is normally of somewhat larger volume. Structure associated with the cavity and exposed at an outer surface of heel expels liquid from the cavity when the heel is pressed down and aspirates liquid in contract with the outer surface when the heel is lifted. An elastically compressible sponge body fills the cavity. This cavity can be a pocket open at the outer surface of the heel or it can be offset from the surface of the heel in which case at least one passage extends between the cavity and the heel outer surface. The cavity can also be empty and offset form the surface of the heel with at least one passage extending between the cavity and the heel outer surface.
Palmberger Walter
Sim & Mcburney
LandOfFree
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