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  Breathing shoeUSPTO Application #: 20070089319Title: Breathing shoe Abstract: A breathing shoe is disclosed to include an air pumping mechanism formed of an air bladder and mounted in the top wall of the outsole for pumping outside cooling air into a front part inside the shoe body to force foul air out of the shoe body through air holes in the front upper part of the shoe body when the user is walking or running. (end of abstract) Agent: Charles E. Baxley, Esq. - New York, NY, US Inventors: Chih-Yuan Liao, Ying-Fang Liao, Ming-Chuan Liao USPTO Applicaton #: 20070089319 - Class: 03600300R (USPTO) The Patent Description & Claims data below is from USPTO Patent Application 20070089319. Brief Patent Description - Full Patent Description - Patent Application Claims
BACKGROUND OF THE INVENTION [0001] 1. Field of the Invention [0002] The present invention relates shoes and more particularly, to a breathing shoe, which breathes when pressed by the user's foot. [0003] 2. Description of the Related Art [0004] When putting a pair of shoes on the feet of the legs, the feet may feel sweltering due to poor ventilation, and may soon start to sweat and to produce a bad smell. One may be embarrassed when taking off the shoes from the feet or when changing the shoes before others if the feet give off a bad smell. Further, keeping the feet in a hot and wet environment for long may cause the skin of the feet to suffer from a skin disease or to be infected with bacteria. Dermatitis may frequently occur in the toes, the gap between toes and the sole. [0005] The aforesaid problems occur due to poor ventilation of the shoes. In order to eliminate these problems, breathing shoes are developed. Commercial breathing shoes use breathing materials for the insole or the vamp, or making air vents on the vamp or the outsole. However, these conventional breathing shoes do not function as well as expected because they cannot induce ventilation when walking. SUMMARY OF THE INVENTION [0006] The present invention has been accomplished under the circumstances in view. It is the main object of the present invention to provide a breathing shoe, which automatically pumps outside cooling air into a front part inside the shoe body and to simultaneously force foul air out of the shoe when the user is walking or running, thereby keeping the user's toes dry and cool. [0007] To achieve this and other objects of the present invention, the breathing shoe comprises a shoe body, which has a plurality of air holes in the vamp thereof, an outsole, which is fastened to the bottom side of the shoe body and has an air inlet at the rear side, and an air pumping mechanism, which comprises a repeatedly compressible air bladder mounted in the top wall of the outsole corresponding to the heel, an air inlet unit connected to the air inlet of the outsole for guiding in cooling air from the outside of the outsole into the inside of the air bladder when the air bladder is not compressed, and an air outlet unit for guiding air out of the air bladder into a front part inside the shoe body when the air bladder is compressed. [0008] When the user is walking or running, the air bladder is alternatively compressed and released to pump outside cooling air into the inside of the upper shoe and to simultaneously force inside foul air out of the shoe body through the air holes in the vamp of the shoe body. BRIEF DESCRIPTION OF THE DRAWINGS [0009] FIG. 1 is an exploded view of a breathing shoe according to the present invention. [0010] FIG. 2 is similar to FIG. 1 but showing the air pumping mechanism installed in the outsole. [0011] FIG. 3 is a sectional view taken in an enlarged scale along line 3-3 of FIG. 1. [0012] FIG. 4 is a sectional view taken in an enlarged scale along line 4-4 of FIG. 3. [0013] FIG. 5 is a top plain view of the assembly of the outsole and the air pumping mechanism according to the present invention. [0014] FIG. 6 is a schematic side view of the present invention, showing the action of the air pumping mechanism upon a downward pressure from the user's foot. [0015] FIG. 7 is a schematic sectional view showing the action of the air pumping mechanism upon a downward pressure from the user's foot of FIG. 6. [0016] FIG. 8 is a schematic side view of the present invention, showing the shoe lifted from the ground and the air bladder of the air pumping mechanism inflated. [0017] FIG. 9 is a schematic sectional view showing the action of the air pumping mechanism after disappearance of the downward pressure from the user's foot of FIG. 8. [0018] FIG. 10 is a sectional view in an enlarged scale taken along line 10-10 of FIG. 8. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT [0019] Referring to FIGS. 1, 2 and 5, a breathing shoe in accordance with the present invention is shown comprising an outsole 10, a shoe body 30 fixedly fastened to the periphery of the outsole 10 at the top, an air pumping mechanism 20 mounted in the outsole 10, and at least one, for example, two air discharging pipes 31 embedded in the outsole 10 and connected to the air pumping mechanism 20. [0020] The air pumping mechanism 20 comprises a repeatedly compressible air bladder 21, an air inlet unit 221 disposed at one side of the air bladder 21, an air outlet unit 231 disposed at an opposite side of the air bladder 21, and at least one, for example, two air delivery pipes 24 embedded in the outsole 10. The air inlet unit 221 comprises a one-way air valve 22 for guiding air into the air bladder 21. The air outlet unit 231 comprises at least one, for example, two one-way air valves 23 for guiding air out of the air bladder 21. The two air delivery pipes 24 are respectively connected between the one-way air valves 23 of the air outlet unit 231 and the air discharging pipes 31 for guiding air out of the air bladder 21 into the inside of the inside of the shoe body 30. Continue reading... Full patent description for Breathing shoe Brief Patent Description - Full Patent Description - Patent Application Claims Click on the above for other options relating to this Breathing shoe patent application. ###  How KEYWORD MONITOR works... a FREE service from FreshPatents1. Sign up (takes 30 seconds). 2. Fill in the keywords to be monitored. 3. Each week you receive an email with patent applications related to your keywords. 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