Footwear construction

Details Footwear construction Footwear construction

A - Human Necessities

43

B

A43B 23/24 (2006.01) A43B 1/00 (2006.01) A43B 5/06 (2006.01)

Patent

CA 2751586

A footwear article having a cartridge enclosing a fluid, the cartridge including a cartridge inlet and a cartridge outlet, and a fluid circulation system for circulating the fluid into the cartridge inlet and out of the cartridge outlet. The fluid circulation system may includ a pump having a pump inlet in fluid communication with the cartridge outlet and a pump outlet in fluid communication with the cartridge inlet. Preferably, the cartridge further encloses particulate matter suspendable in the fluid. The pump may be a bellows pump. The cartridge is preferably interchangeable and can be attached and detached from the footwear article.

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