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Publication numberUS3331146 A
Publication typeGrant
Publication dateJul 18, 1967
Filing dateMay 2, 1966
Priority dateMay 2, 1966
Publication numberUS 3331146 A, US 3331146A, US-A-3331146, US3331146 A, US3331146A
InventorsKarras Elias
Original AssigneeKarras Elias
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Air circulating member for a shoe
US 3331146 A
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Description  (OCR text may contain errors)

July 18, 1967 E. KARRAS AIR CIRCULATING MEMBER FOR A SHOE Filed May 2, 1966 United States Patent 3,331,146 AIR QIRCULATING MEMBER FGR A SHOE Elias Karl-as, 4 Elpidos St, Athens, Greece Filed May 2, I966, Ser. No. 546,972 2 Claims. (Cl. 36-3) This invention relates to an air circulating member for a shoe or similar article of personal wear.

While shoes are worn the human feet become uncomfortable, especially in warm weather, because of lack of ventilation for the foot inside the shoe. To overcome this condition it is my object to provide improved means to introduce and circulate air around the foot every time a step is taken.

Another object is to provide an air circulating memher in one assembly that may be inserted in an ordinary shoe, and is ready to function immediately by circulating air for each step the user takes.

A further object is to so construct my invention that it is economical to manufacture and assemble ready for use, and which requires no instruction to the wearer before using it.

The foregoing and other objects which will appear as the nature of the invention is better understood, may be accomplished by a construction, combination and arrangement of parts such as is disclosed by the drawing. The nature of the invention is such as to render it susceptible to various changes and modifications, and therefore, I am not to be limited to the construction disclosed by the drawing, nor to the particular parts described in the specification; but am entitled to all such changes therefrom as fall within the scope of my claims.

In the drawing:

FIG. 1 is a top plan View of a shoe with my air circulating member in place therein, the upper portion of the shoe being removed.

FIG. 2 is a longitudinal sectional view of a shoe with my air circulating member in place therein, the upper portion of the shoe being shown broken away.

FIG. 3 is a sectional view taken on the line 33 of FIG. 2.

FIG. 4 is a sectional view taken on the line 4-4 of FIG. 2.

FIG. 5 is an enlarged, fragmentary, sectional view of an outlet conduit forming part of said air circulating member.

FIG. 6 is an enlarged, fragmentary, sectional view of an inlet conduit forming part of said air circulating member.

As illustrated, a shoe 10 for a male or female, has the usual sole 12, upper portion 14 and heel 16. Forwardly of, and extending along said heel and sole is an inner, air-circulating member 18. The latter has a hollow, resilient heel portion that is convex-shaped at its upper portion 22, and its bottom portion rests on said heel 16. An air cavity or chamber 24 is provided in said heel portion 20 that is shown in normal or unpressed position in said FIG. 2. A cover 26 covers said upper portion 22 and extends therefrom along the sole, preferably terminating adjacent the toe portion and being cemented in place.

Communicating with said chamber 24, I preferably provide an outlet conduit member 28 that extends through an opening in said heel portion 20 and cover 26. Said conduit 28 is preferably of resilient material and has an integral flap valve 30 that is normally in closed position as indicated in FIG. 5; but which is forced outwardly to open position, as indicated by the dash lines in 0 said FIG. 5, when air from chamber 24 reaches it. T1118 7 outlet conduit 28 extends up the side of the shoe upper 3,331,146 Patented July 18, 1967 portion 14 and may be held there by adhesive tape 32 attached to the inner surface thereof.

An elongate, inlet conduit or tube 34 of rubber or other flexible material communicates with said chamber 24 by entering an opening therein. This tube 34 extends along said cover 26 in a groove 35 provided in the side thereof. Said tube 34 may be held in place by adhesive, and it terminates at the toe portion of the shoe where it has an integral flap valve 36 that is normally in closed position as shown in said FIG. 6. When said valve 36 is opened by air drawn through the end of said tube 34 and into said chamber 24, as the users heel is raised in walking, air fills said chamber. Open position of said valve 36 is shown by dash lines in said FIG. 6.

Normally said chamber 24 is filled with air, as shown in said FIG. 2. As a person walks his weight on said inner member 18 presses air out of said chamber through said outlet tube 28 by forcing said valve 30 outwardly. As he starts the next stride his heel releases the pressure on said inner member 18 and it is restored to normal position, as shown in said FIGS. 2 and 4. Thus air will be drawn into the open end of said inlet tube 34 by moving said valve 36 inwardly as shown in the dash lines in said FIG. 6, thus causing circulating of air within the shoe as it flows to the entrance point of said tube 34.

Said flap valves 36 and 36 may be reversed, and then air would enter through said conduit 28 and be discharged through said conduit 34.

While said inner member 18 may be provided in a shoe when it is manufactured as a part thereof, I have so constructed said member 18 that it may be inserted and used in a shoe already made.

What I claim is:

1. An air circulating member comprising a heel portion having an air chamber, a cover on said heel portion and extending forwardly therefrom, said heel portion and cover having an opening for the escape of air from said chamber, and a conduit communicating with said chamber and extending forwardly along and under said cover and beyond said heel portion and having a valve normally closed and adapted to open when air is drawn into said chamber, and another conduit communicating with said chamber and extending through said cover opening and having a valve normally closed and adapted to open when air is ejected from said chamber.

2. An air circulating member comprising a heel portion having an air chamber, a cover on said heel portion and extending forwardly therefrom, said heel portion and cover having an opening for the escape of air from said chamber, and a conduit communicating with said chamber and extending forwardly along and under said cover and beyond said heel portion and having a valve normally closed and adapted to open when air is drawn into said chamber, said cover having a groove therein at one side extending longitudinally, said conduit extending into said groove.

References Cited UNITED STATES PATENTS 1,660,698 2/1928 Williams 36-6 2,545,062 3/ 1951 Whittington 36-3 3,044,188 7/1962 Evangelista 36-3 3,128,566 4/1964 Burlison et a1 36-3 3,180,039 4/1965 Burns 363 3,225,463 12/1965 Burnham 363 FOREIGN PATENTS 640,720 12/ 193 6 Germany.

PATRICK D. LAWSON, Primary Examiner.

Patent Citations
Cited PatentFiling datePublication dateApplicantTitle
US1660698 *Oct 27, 1926Feb 28, 1928Sr Ormsby P WilliamsVentilating foot covering
US2545062 *Feb 20, 1948Mar 13, 1951Whittington Paul EVentilating insole
US3044188 *Jun 18, 1959Jul 17, 1962Evangelista HenryVentilated footwear
US3128566 *Mar 14, 1961Apr 14, 1964Burlison Garry LVentilated boot
US3180039 *Apr 15, 1963Apr 27, 1965Burns Jr James FVentilated footwear
US3225463 *Oct 12, 1962Dec 28, 1965Charles E BurnhamAir ventilated insole
DE640720C *Nov 26, 1935Jan 11, 1937Hermann RahnschFussbekleidung mit Belueftung
Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US3754339 *Apr 19, 1972Aug 28, 1973S TerasakiAthlete{40 s foots preventive device
US4137653 *Aug 12, 1977Feb 6, 1979Famolare, Inc.Footwear with snorkel ventilation
US4977891 *Nov 8, 1989Dec 18, 1990Royce Medical CompanyInsertion into a shoe
US4999932 *Feb 14, 1989Mar 19, 1991Royce Medical CompanyVariable support shoe
US5035068 *Nov 9, 1989Jul 30, 1991The Wind Pro CorporationShoe and removable shoe insole system
US5333397 *Feb 12, 1993Aug 2, 1994Red Wing Shoe Company, Inc.Inflatable ventilating insole
US5348530 *Jul 29, 1993Sep 20, 1994Royce Medical CompanyPneumatic ankle brace with bladder and pump arrangement
US5353525 *Feb 4, 1991Oct 11, 1994Vistek, Inc.Variable support shoe
US5515622 *Mar 21, 1994May 14, 1996Ewing Athletics Co., Ltd.Shoe construction
US5606806 *Apr 6, 1995Mar 4, 1997Breeze Technology PartnershipSelf-ventilating footwear
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
US5697170 *May 16, 1996Dec 16, 1997Mark A. MurrellAir cooled shoe
US5704137 *Dec 22, 1995Jan 6, 1998Brooks Sports, Inc.Shoe having hydrodynamic pad
US5813140 *Jun 30, 1997Sep 29, 1998Obeid; Abdelhakim R.Ventilated shoe
US5826349 *Mar 28, 1997Oct 27, 1998Goss; Chauncey D.Venilated shoe system
US5845417 *Aug 3, 1995Dec 8, 1998Rusty A. ReedAir cooled shoe having an air exhaust pump
US5975861 *Jul 9, 1997Nov 2, 1999Shin; BongseopPumping assembly for use in ventilated footwear
US5996250 *Nov 25, 1998Dec 7, 1999Reed; Rusty A.Air-cooled shoe having an air exhaust pump
US6044577 *Sep 28, 1998Apr 4, 2000Breeze TechnologySelf-ventilating footwear
US6079123 *Sep 28, 1998Jun 27, 2000Breeze TechnologySelf-ventilating insert for footwear
US6415529 *Sep 1, 2000Jul 9, 2002Daniel D. KelleyShoe ventilation apparatus
US6553690Dec 10, 2001Apr 29, 2003Opal LimitedVentilated footwear
US7047670 *Jul 2, 2003May 23, 2006Reebok International Ltd.Shoe having an inflatable bladder
US7340850 *Oct 11, 2005Mar 11, 2008Hsi-Liang LinVentillating structure for footwear
US7392601Jun 2, 2005Jul 1, 2008The Timberland CompanyChimney structures for apparel
US7622014Jul 1, 2005Nov 24, 2009Reebok International Ltd.Method for manufacturing inflatable footwear or bladders for use in inflatable articles
US7694438Dec 13, 2006Apr 13, 2010Reebok International Ltd.Article of footwear having an adjustable ride
US7784196Dec 13, 2006Aug 31, 2010Reebok International Ltd.Article of footwear having an inflatable ground engaging surface
US7934521Dec 20, 2006May 3, 2011Reebok International, Ltd.Configurable fluid transfer manifold for inflatable footwear
US8146266Jun 2, 2005Apr 3, 2012The Timberland CompanyChimney structures for footwear and foot coverings
US8230874Oct 7, 2008Jul 31, 2012Reebok International LimitedConfigurable fluid transfer manifold for inflatable footwear
US8256141Apr 7, 2009Sep 4, 2012Reebok International LimitedArticle of footwear having an adjustable ride
US8359769Jun 2, 2005Jan 29, 2013The Timberland CompanyChimney structures for footwear
US8414275Jan 11, 2007Apr 9, 2013Reebok International LimitedPump and valve combination for an article of footwear incorporating an inflatable bladder
US8540838Nov 23, 2009Sep 24, 2013Reebok International LimitedMethod for manufacturing inflatable footwear or bladders for use in inflatable articles
US8572786Oct 12, 2010Nov 5, 2013Reebok International LimitedMethod for manufacturing inflatable bladders for use in footwear and other articles of manufacture
WO1998011796A1 *Jul 15, 1997Mar 26, 1998Dieter NeidhardtA ventilating insole for shoes
WO2000018263A1 *Sep 28, 1999Apr 6, 2000Gregory ClarkSelf-ventilating insert for footwear
Classifications
U.S. Classification36/3.00B, 36/3.00R
International ClassificationA43B7/08
Cooperative ClassificationA43B7/082, A43B7/081
European ClassificationA43B7/08B