Search Images Maps Play YouTube News Gmail Drive More »
Sign in
Screen reader users: click this link for accessible mode. Accessible mode has the same essential features but works better with your reader.


  1. Advanced Patent Search
Publication numberUS2558973 A
Publication typeGrant
Publication dateJul 3, 1951
Filing dateFeb 6, 1948
Priority dateFeb 6, 1948
Publication numberUS 2558973 A, US 2558973A, US-A-2558973, US2558973 A, US2558973A
InventorsWesley Meaker John
Original AssigneeWesley Meaker John
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Ventilated shoe
US 2558973 A
Abstract  available in
Previous page
Next page
Claims  available in
Description  (OCR text may contain errors)

J. W. MEAKER VENTILATED SHOE July 3, 1951 Filed Feb. 6, 1948 INVENTOR. JOHN w. MEAKER BY Patented July 3, 1951 UNITED STATES PATENT OFFICE VEN TILATED SHOE John Wesley Meaker, New York, N. Y.

Application February 6, 1948, Serial No. 6,726

. 1 Claim. 1

This invention relates to improvements in footwear and it relates more particularly to shoe sole constructions for promoting the flow of air through, or ventilation of, shoes, slippers and the like.

It is known that the leather used in shoe soles varies widely in its porosity and for that reason some shoes seem to feel warmer and less comfortable than others. Also, it is known that natural and synthetic rubber soles, and certain rubbery plastic soles, which are not at all porous, have the same characteristic of feeling excessively warm. The reason for discomfort is, of course, the blocking of the llow of air through the shoe so that normal evaporation cannot take place and the cooling effect of evaporation is lost. This action of the relatively non-porous leathers and the rubbery soles is especially noticeable When perspiration increases, as during the summer. As a corollary to the lack of proper ventilation of shoes, the growth of fungus, such as athletes foot is encouraged to such an extent that many people iind it impractical to wear shoes which do not have perforated uppers in the summer-time.

It has been suggested heretofore that the soles of shoes might be provided with internal passages which communicate with the interior of the shoes by means of perforations in the insole so that air is pumped through these passages and n perforations as the wearer walks. Some of these shoe soles have been provided with porous fillers or grooves which communicate with the atmosphere through perforations in the sides of the soles. These constructions are generally satisfactory when the footing is dry, but, under wet or rainy conditions, the soles act to admit or pump water into the interior of the shoe. Other shoes have been provided with a plurality of spacing strips between the outsole and the insole which communicate with the atmosphere by means of vents at the counter or at the edges of the soles. Such arrangements are not very satisfactory for the strips soon form ridges in the insole which make the shoes uncomfortable.

In addition to the above-noted defects of the prior ventilated soles, they have the disadvantage of requiring substantial modification of normal manufacturing procedures in order to produce them.

An object of the present invention is to -provide ventilated shoe constructions which overcome the disadvantages of the prior sole constructions pointed out above.

Another object of the invention is to provide an improved Shoe Sole construction wherein air is more positively circulated through the shoe While the wearer is in motion.

An additional object of the invention is to provide a shoe sole which assures ventilation of the shoe While not diiering noticeably in appearance from prior unventilated shoe sole constructions.

Other objects of the invention will become apparent from the following description of typical shoe soles embodying the present invention.

In accordance with this invention, I have provided an outsole with a grid work of narrow passages or grooves which extend to the edge of the sole only at that portion above the heel of the shoe. The passages or grooves may be formed in the outsole by molding, if the soles are of rubber or plastic, or by cementing to leather, plastic or rubber soles a thin layer of leather, plastic, or impregnated fabric having slots` forming the grid work cut or otherwise formed in it.

Outsoles of the type described are used in con- -junction with insoles which are provided with a multiplicity of small perforations through which air ows from the passages in the outsole to the interior of the shoe.

The outsoles may be attached to the insoles and uppers in the same way as any conventional leather or rubber sole so that no changes in manufacturing operations or shoe making machinery are required for producing my new shoes.

The above-described arrangement wherein the passages in the outsole extend only to the heel edge of the sole has the advantage of making the shoes as satisfactory for wear in all kinds of weather as ordinary unventilated shoes. The inlet of the grid of passages is elevated by the heel of the shoe so that water cannot enter the passages unless it is deeper than the heel of the shoe, in which event, the shoe would be wet anyway. Moreover, the opening at the heel has the advantage of improving the air pumping action of the sole. During walking, the weight is first placed on the heel and then transferred forwardly to the toe. The weight has a tendency to contract or compress the passages and thus the air is forced forwardly and up through the porous insole.

Even more positive pumping action can be attained by mounting a small and simple valve in the inlet passage or in the heel of the shoe so that air can now into the grid work of passages through the valve but cannot flow out through the valve. A positive circulation and enhanced ventilation are thereby assured.

For a better understanding of the present invention, reference may be had to the accompanying drawings, in which:

Fig. 1 is a top plan View of a typical form of outsole in accordance with the present invention;

Fig. 2 is a View in longitudinal section of a modified two piece outsole;

Fig. 3 is a View in longitudinal section of a shoe embodying the present invention; and

Fig. 4 is an enlarged view in longitudinal section of the heel of a modified shoe showing details of a valve for positively circulating air through the shoe.

The principal feature of my new shoe construction is the provision o' a novel type of outsole IB, shown in Fig. 1, which may be formed of any suitable material such as leather, rubber, synthetic rubber or rubbery synthetic plastic. The upper surface of the outsole Iii is provided with a series of grooves or channels including a longitudinally extending channel II which extends from the edge of the heel portion I2 of the outsole along the upper surface of the sole and terminates in spaced relationship to the tip or toe end I3 oi the sole. The channel I I communicates with a plurality of transverse grooves or channels Il which intersect the channel II and have their opposite ends terminating inwardly of the edges of the Sole. The reason for this arrangement of the channels will be explained in greater detail hereinafter. The channels II and I in the upper surface of the insole may be molded therein if the sole is formed of rubber or rubbery material. If the sole is form-ed of leather, they may be cut or scarfed in the surface of the sole I. It is also possible, as shown in Fig. 2, to form a laminated outsole I5 in which the under or ground contacting portion I6 has a smooth upper surface I'I and the grid work of channels is provided by ceinenting or otherwise securing a thin strip of rubber, leather or other material IB to the upper surface II of the outsole I5. This layer I3 is provided with slots corresponding to the grooves II and I4, but these slots extend completely through the layer of material I8 so that when it is cemented in place, a plurality of channels or grooves is provided on the upper surface of the sole I5.

The channels or grooves I I and I4 are relatively shallow and narrow. For example, they may vary in depth between about e and of an inch and their maximum width preferably should not exceed about 1/8 of an inch. Such narrow and shallow grooves do not cause the insole to become rough or corrugated.

Outsoles of the type described above are' applied to the uppers of shoes in the same way as conventional leather, rubber or plastic soles. The insole of the shoe 2Q, for example, as shown in Fig. 3, differs from the ordinary insole in that it is provided with a large number of perforations. Thus, the insole 2l, which may be of otherwise conventional construction and formed of a sheet of leather or leather and fabric cemented together, is provided Vwith a great many small perforations 22 extending completely through it for communication with the channels II and I4 in the upper surface of the sole I9. The perforatons 22 may vary from about to T1@ of an inch in width and may be formed at random in the insole 2| so that at least some of these perforations will overlie and communicate with the channels II and I4.

It will be understood that the sole construction'o the shoe may be of the familiar welted type or any other type, the only requirement be ing that the outermost ends of the channel II 4 near the tip I3 of the sole and the ends of the channels I6 adjacent the sides of the sole shall terminate inwardly of the edges of the sole. In this way, all of these channels except the rear end of the channel I I are closed, and thus, moisture cannot readily seep into the channels and thereby enter the shoe. rlhe open end of the channel II, as shown in Fig. 3, is disposed above the level or the heel 23 of the shoe and for that reason it is unlikely to admit moisture into the shoe unless the water is so deep that the sole and part of the upper are completely immersed.

By arranging the only opening to atmosphere for the group of channels at the heel of the shoe, an improved circulating action is provided. Thus, as the wearer walks, the weight is first applied to the heel 23 which tends to cause the open end of the channel to be closed. As the weight is transerred forward, the air is forced along the channels toward the toe of the shoe and upwardly through the perforations 22 into the interior of the shoe, thereby causing a forced circulation of the air. Such forced circulation o the air increases evaporation within the shoe and makes the shoe much cooler to wear than the ordinary shoe having a relatively non-porous or impervious sole thereon.

If desired, an even more pronounced pumping of the air through the shoe can be obtained by providing a check valve mechanism which permits the ilow of air into the channel I I from the atmosphere, but prevents air from being forced out except through the perforations in the insole 2I of the shoe. In this modification, the valve may be inserted in the outer end of the groove I I or it may be inserted in the heel of the shoe where more space is available. Such a construcf tion is disclosed in Fig. 4 of the drawings. In this form of shoe construction, one of the lifts 24 of the heel 25 of the shoe is provided with a bore or opening 26 in which is mounted a valve member 2l. The valve may be of the rubber flap valve type including a metal or plastic tube 28 having a tube of resilient rubber 29 thereon, the inner ends 3U of the tube 2S being flattened and normally in engagement. Such a valve is well-known. The flattened ends 30 of the valve spread apart to permit air to ilow between them, these flaps closing together to prevent flow of air in the other direction. The air entering through the valve 21 flows through a passage 3I extending upwardly through the heel and communicating with an opening 32 extending through the sole, as shown in Fig. 4. The opening 32 communicates with the lengthwise channel 33 in the outsole, this latter channel being closed at both ends in this form of the invention but otherwise corresponding to the grooves II in Fig. l. With this arrangement, the compression and expansion of the sole and the grooves therein during walking will create a pumping action forcing the air upwardly through the perforated insole to assure positive ventilation of the shoe. It will be understood that the form of the invention described herein is illustrative and that the design of the grooves in the outsole may be modified very substantially so long as they do not extend to the outer edge of the outsole except near the heel portion. Therefore, the form of the invention described herein should be considered as illustrative and not as limiting the scope of the following claim.

I claim:

A ventilated shoe comprising an upper, an insole connected to said upper and having a multiplicity of small perforations therethrough, an

outsole having tread, shank and heel portions beneath said insole and connected to said upper, a heel xed to said heel portions below said outsole, the latter having at least one groove in its upper surface extending from the rear edge of said heel portion toward the opposite end of said outsole along said heel, shank and tread portions and terminating in said tread portion short of said opposite end, and said outsole further having in its upper surface a series of narrow transverse grooves communicating with said one groove and said perforations and terminating shortl of the edges of said outsole.


REFERENCES CITED The following references are of record in the file of this patent:


Patent Citations
Cited PatentFiling datePublication dateApplicantTitle
US452655 *Jan 16, 1890May 19, 1891 George valiant
US896488 *Jan 17, 1901Aug 18, 1908Margaret ValiantVentilated shoe.
US1005674 *Jun 17, 1905Oct 10, 1911George ValiantVentilated boot and shoe.
US2010151 *May 15, 1933Aug 6, 1935Carl Helwig ArthurShoe ventilating device
US2098412 *Jun 16, 1936Nov 9, 1937Us Rubber Prod IncRubber soled footwear
US2224590 *Dec 2, 1938Dec 10, 1940Joseph E BarretteShoe filler
US2239211 *Apr 19, 1940Apr 22, 1941Kalb Wylie William DeVentilated shoe
DE532936C *Sep 25, 1930Sep 5, 1931Octave MavautSchuhwerk mit Lueftung
DK57400A * Title not available
Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US2720041 *Mar 31, 1953Oct 11, 1955Kalman KajtarFootwear with provision to change the air therein
US3205595 *Apr 21, 1964Sep 14, 1965Funck Kg Dr IngVentilated water-tight footwear
US3383782 *Nov 5, 1964May 21, 1968Mrs Day S Ideal Baby Shoe CompArticles of footwear
US3426455 *Jun 13, 1966Feb 11, 1969Superga SpaShoe insole
US4078321 *Oct 12, 1976Mar 14, 1978Famolare, Inc.Shock absorbing athletic shoe with air cooled insole
US4325194 *Aug 4, 1980Apr 20, 1982Asics CorporationSport shoe sole
US4438573 *Jul 8, 1981Mar 27, 1984Stride Rite International, Ltd.Ventilated athletic shoe
US4506461 *May 28, 1982Mar 26, 1985Asics CorporationSport shoe sole
US4523393 *Apr 5, 1982Jun 18, 1985Asics CorporationSport shoe sole
US4619055 *Oct 29, 1984Oct 28, 1986Davidson Murray RCushioning pad
US4845863 *Sep 16, 1988Jul 11, 1989Autry Industries, Inc.Shoe having transparent window for viewing cushion elements
US4993173 *Aug 29, 1989Feb 19, 1991Gardiner James TShoe sole structure
US5035068 *Nov 9, 1989Jul 30, 1991The Wind Pro CorporationShoe and removable shoe insole system
US5138775 *Oct 28, 1991Aug 18, 1992Chu Hui ChengVentilated shoes
US5222312 *Sep 30, 1992Jun 29, 1993Doyle Harold SShoe with pneumatic inflating device
US5400526 *Sep 14, 1993Mar 28, 1995Sessa; Raymond V.Footwear sole with bulbous protrusions and pneumatic ventilation
US5505010 *May 11, 1994Apr 9, 1996Fukuoka Chemical Industry Co., Ltd.Ventilating shoes
US5655314 *Feb 1, 1996Aug 12, 1997Petris - S.P.A.Moulded shoe sole able to take in air from the inside of the shoe and push it out from the heel
US6553690Dec 10, 2001Apr 29, 2003Opal LimitedVentilated footwear
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
US9232830Sep 19, 2013Jan 12, 2016Nike, Inc.Ventilation system for an article of footwear
US20060168847 *Jan 27, 2006Aug 3, 2006Nike, Inc.Breathable sole structures and products containing such sole structures
US20070214682 *Jan 16, 2007Sep 20, 2007Smotrycz Zenon OVentilated shoe sole construction with improved medical support
US20090056172 *Sep 4, 2007Mar 5, 2009Nike, Inc.Footwear Cooling System
US20110265352 *Apr 13, 2011Nov 3, 2011Hsi-Liang Lin3-d shoe with ventilation
US20160007685 *Jul 13, 2015Jan 14, 2016Tsu-Chi LINVentilating insole structure
US20160081424 *Dec 3, 2015Mar 24, 2016Nike, Inc.Ventilation System For An Article Of Footwear
USD315634Aug 25, 1988Mar 26, 1991Autry Industries, Inc.Midsole with bottom projections
USD485426Oct 23, 2002Jan 20, 2004Opal LimitedInsole
EP0792593A2 *Feb 25, 1997Sep 3, 1997W.L. GORE & ASSOCIATI S.r.l.Footwear having a shaped outsole for providing internal ventilation of the shoe
EP0792593A3 *Feb 25, 1997Jun 3, 1998W.L. GORE & ASSOCIATI S.r.l.Footwear having a shaped outsole for providing internal ventilation of the shoe
U.S. Classification36/3.00B, 36/3.00R
International ClassificationA43B7/00, A43B7/06
Cooperative ClassificationA43B7/06
European ClassificationA43B7/06