Ventilating outsole

Details Ventilating outsole Ventilating outsole

1979-10-15

1981-09-22

Lawson, Patrick D.

Boots, shoes, and leggings

Boots and shoes

Ventilated

A43B 706

Patent

active

042902118

ABSTRACT:
An article of footwear having an improved outsole formed with uniformly distributed small apertures therethrough throughout its area, the apertures being of circular, oval or other curvilinear or angular or polygonal cross-section or any combination of them throughout their axial length and tapering convergently upwardly.
The apertures optimally have diameters, or spans defining equivalent cross-sectional areas, on the order of about 1.6-2 millimeters at their inner ends and 2.4-2.8 millimeters at their outer ends, with center to center spacings on the order of about 5-7 millimeters. Small untapered holes may be employed.

REFERENCES:
patent: 3418731 (1968-12-01), Anciaux
patent: 3676940 (1972-07-01), Shirely
patent: 4063371 (1977-12-01), Batra
patent: 4100685 (1978-07-01), Dassler
patent: 4185402 (1980-01-01), Digate

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