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Publication numberUS1504908 A
Publication typeGrant
Publication dateAug 12, 1924
Filing dateJan 3, 1923
Priority dateJan 3, 1923
Publication numberUS 1504908 A, US 1504908A, US-A-1504908, US1504908 A, US1504908A
InventorsRyuji Sato
Original AssigneeRyuji Sato
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Insole for shoes
US 1504908 A
Abstract  available in
Previous page
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Claims  available in
Description  (OCR text may contain errors)

Aug. 12.. 1924. 1',504,908

R. SATO Y INS'OLE FOR SHOES Filed dan. 3. 1923 VENTOR ATTORNEY Patented Aug. 12, 1924.



vAmilcaton led January 3, 1923.

To all who-m t may concern:

Be it known that l, RYUJI Saro, a subject of the Emperor of Japan, residing at New York city, in the county of New York and State of .N ew York, have invented new and useful improvements in lnsoles for Shoes, of which the following is a specification.

This invention relates to insoles for shoes.

An object of the invention is to provide an insole having means for automatically creating a forced ventilation of the shoe and for causing fresh air to be circulated around the foot of the wearer.

A further object of the invention is to provide an insole of the character which, through its buoyancy will furnish a great amount of comfort to the user which will operate to absorb shocks and ars which are tion and combination and arrangement ofl parts, the essential features of which are hereinafter fully described, are particularly pointed out in the appended claims, andare illustrated in the accompanying drawing, in which Figure l is a sectional perspective View of the insole.

Figure 2 is a vertical longitudinal section therethrough.

Figure 3 is a transverse section on 3-3 of Figure ln carrying the invention into practice, l provide an enclosing structure which may consist of layers of leather or cork or other suitable well-known materials 5 and 6 stitched or suitably secured together at their marginal edges. It is preferred that an adhesive be employed between the marginal edges of the materials 5 and 6 so as to seal the enclosure around such edges.

interposed between the materials 5 and 6; is a hollow elastic body 9 formed of rubber and provided with openings l() over which the material 5 is arranged so that when pressure is applied to the body to partly collapse same air will be forced through the openings l0 and into the space between the body 9 and the material 5 and thence escape line serial No. 610,482.

from suitable perforations ll formed in said material 5.

The openings 10 are ren spectively arranged near the front and rear portions of the insole.

incident thereto `therefron'i through the openings 10. ln this manner and in view of the openings ll which operate in conjunction with the openings l0, a fresh supply of atmospheric air is constantly circulated around the foot of the user. This invites a sanitary condition, reduces perspiration of the feet and provides an insole which through its buoyant qualities 'is shock absorbent and comfortable to the foot.

rIhe hollow body 9 has preferably incorporated therewith a suitable leaf spring 12 having portions 'i3 and 14 respectively bearing against the Lipper and lower walls of the body so as to assist in normally holding this body distended.

`While I have described what l deem to be the most desirable embodiment of my invenion, it is obvious that many of the details may be varied without in any way departing from the spirit of my'invention, and l therefore do not limit `myself to the exact details of construction herein set forth nor to anything less than the whole of my invention limited only by the appended claims.

What is claimed as new is:`-

l. An insole including an enclosure structure having a perforated wall, and a hollow elastic body contained in the enclosure and provided with openings co-acting with the openings of the enclosures to induce a circulation of air around the foot respectively on inflation and deflation of said body.

2. An insole including a hollow normally distended body having perforations, and a perforated enclosure for the body.

In testimony whereof I have aiiixed my signature.


Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US3315379 *Oct 10, 1966Apr 25, 1967Estandian Ramon DAir circulating insole
US4123855 *Aug 10, 1977Nov 7, 1978Thedford Shirley CFluid filled insole
US4183155 *Aug 18, 1978Jan 15, 1980Payne William HInsole for footwear having flexible envelope means
US4999931 *Feb 21, 1989Mar 19, 1991Vermeulen Jean PierreShock absorbing system for footwear application
US6393732 *Jun 8, 2000May 28, 2002Mizuno CorporationAthletic shoe midsole design and construction
US20120066937 *Sep 19, 2010Mar 22, 2012Che Meng ChangShoe pad
WO2013133858A1 *May 23, 2012Sep 12, 2013Cedar Technologies International Ltd.Article of footwear, sole and pump arrangement for use in same, and method of making same
U.S. Classification36/147, 36/3.00B
International ClassificationA43B17/06, A43B17/00, A43B17/08
Cooperative ClassificationA43B17/08, A43B17/06
European ClassificationA43B17/06, A43B17/08