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Shoe with breathable shellShoe with breathable shell description/claimsThe Patent Description & Claims data below is from USPTO Patent Application 20050241179, Shoe with breathable shell. Brief Patent Description - Full Patent Description - Patent Application Claims
BACKGROUND OF THE INVENTION [0001] 1. Field of the Invention [0002] The invention relates to a shoe, more particularly to a shoe with a breathable shell. [0003] 2. Description of the Related Art [0004] Referring to FIG. 1, a conventional ventilated shoe disclosed in U.S. Pat. No. 6,553,690 is shown to include an upper unit 1 having a plurality of vent holes 102 formed in intermediate lateral portions 101 thereof, and a midsole unit formed with a plurality of openings (not shown) which correspond in position to the vent holes 102 so as to enable circulation of air through the upper unit 1. Although such a shoe permits ventilation, the air within the shoe cannot be effectively expelled to the outside. That is, the ventilating effect of the shoe is not satisfactory. [0005] Referring to FIG. 2, in another breathable shoe disclosed in U.S. Pat. No. 5,819,438, a mechanical air pump 3 is mounted on a toe part of an upper unit 2 such that when the wearer walks, the pumping action of the air pump 3 helps drive the air within the shoe to the outside, thereby dissipating the bad odor of the foot, and the heat and moisture built up within the shoe to the outside. However, such a shoe is complicated and expensive to manufacture. [0006] U.S. Pat. No. 4,562,652 discloses a shoe including a shell having an upper part provided with a corrugated portion so as to improve the comfort to the wearer. However, the shoe does not provide a ventilating effect. SUMMARY OF THE INVENTION [0007] Therefore, the object of the present invention is to provide a shoe with a breathable shell having a flexible corrugated portion formed with vent holes to permit ventilation of the shoe when the wearer moves. [0008] Accordingly, a shoe of this invention comprises a shell which includes a front part, a rear part, and two opposite intermediate parts extending between the front and rear parts. The shell has a flexible corrugated portion which includes a plurality of crests and valleys that extend along a direction transverse to a line parallel to a front-to-rear direction of the shell, and a plurality of vent holes formed in the corrugated portion. The corrugated portion is extendable and compressible. BRIEF DESCRIPTION OF THE DRAWINGS [0009] Other features and advantages of the present invention will become apparent in the following detailed description of the preferred embodiments with reference to the accompanying drawings, of which: [0010] FIG. 1 is a schematic view of a conventional shoe with an upper unit provided with vent holes; [0011] FIG. 2 is a schematic, partly sectional view of another conventional shoe with an upper unit provided with a mechanical air pump; [0012] FIG. 3 is a perspective view of the first preferred embodiment of a shoe according to this invention; [0013] FIG. 4 is a sectional view taken along line 4-4 of FIG. 3, illustrating a flexible corrugated portion a shell of the first preferred embodiment; [0014] FIG. 5 is a perspective view showing how the shell of the first preferred embodiment flexes; [0015] FIG. 6 is a schematic sectional view taken along line 6-6 of FIG. 5, illustrating how air is expelled through the flexible corrugated portion of the shell of the first preferred embodiment when the latter is compressed during flexing of the shell; [0016] FIG. 7 is a schematic sectional view of a flexible corrugated portion of a shell of the second preferred embodiment according to this invention; [0017] FIG. 8 is a schematic sectional view taken along line 8-8 of FIG. 7; [0018] FIG. 9 is a view similar to FIG. 7, but illustrating the flexible corrugated portion in a compressed state; [0019] FIG. 10 is a schematic view of the third preferred embodiment of a shoe according to this invention; [0020] FIG. 11 is a schematic view of the fourth preferred embodiment of a shoe according to this invention; [0021] FIG. 12 is a schematic view of the fifth preferred embodiment of a shoe according to this invention; and Continue reading about Shoe with breathable shell... Full patent description for Shoe with breathable shell Brief Patent Description - Full Patent Description - Patent Application Claims Click on the above for other options relating to this Shoe with breathable shell 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. Start now! - Receive info on patent apps like Shoe with breathable shell or other areas of interest. ### Previous Patent Application: Drying device for drying a gas Next Patent Application: Inner sole assembly for slipper or sandal Industry Class: Boots, shoes, and leggings ### FreshPatents.com Support Thank you for viewing the Shoe with breathable shell patent info. 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