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Publication numberUS485180 A
Publication typeGrant
Publication dateNov 1, 1892
Filing dateNov 13, 1891
Publication numberUS 485180 A, US 485180A, US-A-485180, US485180 A, US485180A
InventorsLucius R. Eastman
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Ventilated shoe
US 485180 A
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Description  (OCR text may contain errors)

(No Model.)



No. 485,180. Patented Nov. 1, 1892.

\NiTHEEEEE- I attain these objects by the mechanism shown UNITED STATES PATENT OFFICE.



SPECIFICATION forming part of Letters Patent No. 485,180, dated November 1, 1892. Application filed November 13, 1891. Serial No. 411,767. (No model.)

To aZZ whom it may concern.-

Be it known that LLUOIUS R. EASTMAN, of Boston, in the county of Suffolk and State of Massachusetts, have in vented certain new and useful Improvements in Shoes, of which the following, taken in connection with the accompanying drawings, is a specification.

The object of my invention is to provide a flexible ventilator for boots and shoes. Said ventilator isinserted between the bottom and insole and is formed by bending steel or other wire in the shape of the sole, leaving longitudinal spaces for the circulation of air. The insole is formed with perforations over and opening into the spaces between the lengths of wire. An opening is formed in the counter leading to the top of the shoe for the entrance of fresh air. Said opening communicates with the air-spaces. Another object of my invention is to provide a flexible shank for the boot or shoe. This is done by contracting the Wires at the shank of the boot or shoe. By this form the ventilator performs the function of a steel shank. The ventilator can be made with latitudinal bends, if desired; but I prefer the above-described form.

in the accompanying drawings, in which- Figure 1 represents a longitudinal section of a shoe embodying my improvement. Fig. 2 is a plan of the bottom sole with the metallic ventilator in place. Fig. 3 is an enlarged transverse section.

Referring to the drawings, A represents a shoe; B, an insole, which may be ofthe usual form, except that it has a number of perforations 1).

D, Figs. 1 and 2, shows the metallic ventilator arranged in such a manner that the spaces between its lengths will be under the perforations b in the insole.

0, Figs. 1 and 2, is the bottom sole, upon which rests the metallic ventilator D.

1), Figs. 1, 2, and 3, show the air-space in the counter for the entrance of fresh air. This air-space is formed by bending each end of the wire D into a space out outof the counter, as shown.

The operation is as follows: In the act of walking the foot is expanded and contracted as the pressure is put on and taken off. A bellows or piston action is formed and the air is drawn in and forced out of the air-space 1). Complete ventilation is secured by the air circulating between the lengths of wire and through the perforations 1) into the inside of the shoe.

I claim- In aventilated shoe, the combination of an insole having perforations b with a single piece of wire bent at the toe and heel, forming lengths, said lengths placed lengthwise between the inner and outer soles to form an air-space, the outside lengths conforming to the contour of the sole, all of the lengthscontracted at the shank, and a portion bent nearly at right angles and inserted in aspace formed by removing a part of the counter, forming an air-inlet passage 1), with its opening at the top of the counter for the admission of air, all constructed and adapted to operate substantially as described, and for the purpose set forth.

In testimony whereof I have signed my name to this specification, in the presence of two subscribing witnesses, on this 12th day of November, A. D. 1891.



Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US4845863 *Sep 16, 1988Jul 11, 1989Autry Industries, Inc.Shoe having transparent window for viewing cushion elements
US7536808Jan 27, 2006May 26, 2009Nike, Inc.Breathable sole structures and products containing such sole structures
US7918041Sep 4, 2007Apr 5, 2011Nike, Inc.Footwear cooling system
US8191284Jan 7, 2011Jun 5, 2012Nike, Inc.Footwear cooling system
Cooperative ClassificationA43B7/06