IP Library Granted Patent US 7,328,524
Granted Patent B2
US 7,328,524 · App. 11/030,518 · Granted Feb 12, 2008

Shoe with improved ventilation

Assignee: Columbia Insurance Company
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Quick Facts
Patent No.
US 7,328,524
App. No.
11/030,518
Granted
Feb 12, 2008
Kind
B2
Abstract

The invention relates to a sole that includes a bottom surface, a top surface, and a shaft extending upwardly from the top surface. The shaft further includes an upper surface and an elongated hole extending from the upper surface to the bottom surface through the sole and shaft.

Claims (41)

1. A sole, comprising:

a bottom surface;

a top surface;

a shaft extending upwardly from said top surface;

said shaft having an upper surface;

a hole extending from said upper surface to said bottom surface through said sole and said shaft; and

said hole tapers upwardly to increase velocity of air trapped within said hole.

2. The sole according to claim 1 , further comprising a first filter on said upper surface for inhibiting debris from entering a shoe through said hole.

3. The sole according to claim 2 , further comprising a second filter placed on a side of said first filter opposite said hole for further inhibiting debris from entering the shoe through said hole and said first filter.

4. The sole according to claim 3 , wherein said second filter has at least one aperture of a different size than at least one aperture of said first filter.

5. The sole according to claim 1 , wherein said upper surface is between approximately ¼ inch and approximately 2 inches away from said bottom surface for inhibiting water or debris from entering a shoe.

6. The sole according to claim 1 , wherein said hole is between approximately 1 inch and approximately 2½ inches long.

7. The sole according to claim 1 , wherein said upper surface is between approximately ½ inch and approximately ⅞ inch away from said bottom surface for creating a vacuuming effect which promotes air to enter a shoe through said hole.

8. A shoe, comprising:

a sole including

a bottom surface;

a top surface;

a shaft extending upwardly from said top surface;

said shaft having an upper surface; and

a hole extending from said upper surface to said bottom surface through said sole and said shaft;

said hole tapers unwardly to increase velocity of air trapped within said hole;

a sock lining extending over said top surface and adapted to receive a user's foot; and

a spacer extending from said sock lining to said top surface to cushion the user's foot.

9. The shoe according to claim 8 , further comprising a first filter on said upper surface for inhibiting debris from entering a shoe through said hole.

10. The shoe according to claim 9 , further comprising a second filter placed on a side of said first filter opposite said hole for further inhibiting debris from entering the shoe through said hole and said first filter.

11. The shoe according to claim 10 , wherein said second filter is secured to said sock lining.

12. The shoe according to claim 8 , wherein said spacer is made of a resilient material.

13. The shoe according to claim 8 , wherein said hole tapers upwardly to increase velocity of air trapped within said hole.

14. A shoe, comprising:

a sole including

a bottom surface;

a top surface;

a shaft extending upwardly from said top surface;

said shaft having an upper surface; and

a hole extending from said upper surface to said bottom surface through said sole and said shaft;

said hole tapers upwardly to increase velocity of air trapped within said hole;

a first filter on said upper surface for inhibiting debris from entering a shoe through said hole;

a socklining extending over said top surface and placed on a side of said first filter opposite said hole;

said socklining including a second filter for providing a second inhibitor for inhibiting debris from entering a shoe through said hole and said first filter; and

a spacer extending from said socklining to said top surface to cushion the user's foot.

15. The shoe according to claim 14 , wherein said hole is unobstructed in a location at least partially defined by a bottom perimeter of said upper surface of said shaft and said bottom surface of said sole.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jan 6, 2005
From: LEBO, JONATHAN K.
To: COLUMBIA INSURANCE COMPANY
Reel/Frame 016157/0471 →
Continuity (1)
Related Publication 20060143942A1 · Jul 6, 2006