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.

Patents

  1. Advanced Patent Search
Publication numberUS3469576 A
Publication typeGrant
Publication dateSep 30, 1969
Filing dateOct 5, 1966
Priority dateOct 5, 1966
Publication numberUS 3469576 A, US 3469576A, US-A-3469576, US3469576 A, US3469576A
InventorsEverts Jack A, Smith Henry M
Original AssigneeSmith Henry M, Everts Jack A
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Footwear
US 3469576 A
Abstract  available in
Images(1)
Previous page
Next page
Claims  available in
Description  (OCR text may contain errors)

Sept. 30, `1969 H. M. SMITH ET Al- FOOTWEAR Filed Oct. 5. 1966 Ilflilllll United States Patent O U.S. Cl. 12S-595 4 Claims ABSTRACT OF THE DISCLOSURE An article of footwear wherein the inner sole structure of the shoe includes a flexible envelope conforming in outline to the wearers foot and having .an upward extension at`the heel portion. The envelope has aplurality of lengthwise channels and contains a owable material consisting of solid particles such as phenolic beads in a lubricative liquid material such as mineral oil. The channels retard ow of the material under pressure from a wearers foot and direct thek ow generally lengthwise of the shoe.

l This invention relates to .a podiatric device or appliance for use with or as a part of a shoe or similar article of footware. The device may be either an inserted insole type unit or an integral part of the shoe structure and operates by weight transferrence and hydraulic resistance to support and cushion the foot to afford the maximum body weight-bearing efficiency, resulting in minimal specic pressures uniformly dispersed over as great an area of the foot as is attainable. The device of the present invention further functions to fill the concavities of the foot and to surround and cushion the convexities thereof, thereby relieving all specific points of pressure which normally tend to produce abnormalities such as callouses, bunions, corns and other malfunctions of the foot generally attributed to improperly devised footwear.

Additionally, this podiatric device functions to cradle and stabilize the heel, generally considered to be the rudder of the foot, so that in the course of a step the foot is directionally guided forward in a straight line. The mechanical operation of the present podiatric device and various other novel features of construction inherent in the footwear of the present invention are pointed out in detail in conjunction with the following description of a typical embodiment thereof, considered in conjunction with the accompanying drawing, wherein like numerals represent like parts throughout the various views, and wherein:

FIG. 1 is a plan view of a preferred embodiment of the podiatric device of the present invention;

FIG. 2 is a side elevation view thereof;

FIG. 3 is a transverse cross-sectional view taken about on a line 3-3 of FIG. 2;

FIG. 4 is a transverse cross-sectional view taken about on line 4-4 of FIG. 2, and showing portions of the footwear;

FIG. 5 is an enlarged fragmentary view of one form of a flowable medium contained within the device shown in FIG. l; .and

FIG, 6 is a view similar to FIG. 5 and showing another form of a flowable medium.

Referring now to the drawing, and particularly FIG. 3, there is shown, in cross-section, an article of footwear comprising an upper 10 .and an outsole 11, and the podiatric device structure generally designated 12, the upper being secured along the lower margin to the outsole by conventional fastening means. Insole 12 may be secured within the shoe by -fastening the lower surface tothe upper surface of the outsole 11, thus forming an integral part of the shoe structure, or in the illustrated form, the insole may be placed within the shoe and retained in proper position by a corresponding and irregular lateral contour of the upper adjacent to the lower margin thereof, whereby the insole may be readily inserted into substantially conventional footwear.

The insole portion 12 of this pediatric device comprises an envelope or hollow device formed into the general shape of a conventional insole in part, that is, having a heelstructure, toe structure and arch portions indicated at 14, 15 and 16, respectively in FIG. 2, such envelope including lower walls 17 and 18 and side walls 19. The side walls 19 .at the heel portion, as'shown in FIG. 4, extend upward and around'the lateral and posterior areas of the heel and have inner wall portions 20 spaced therefrom, forming a chamber for receiving the heel. The envelope structure, shown herein as extending upwardly at the heel portion, may also extend upwardly and about other portions of the foot as desired and to provide the ilowable medium cushioning effect about or at any desired portion of the sides of the foot or across the toe and/or instep portions thereof. The envelope may be formed of any suitable resilient flexible material, such as rubber or other elastomeric or plastic components.

Extending from the anterior extremity of the arch of the foot backward to the posterior extremity of the arch are lateral tubular channels 22 constructed of an elastomeric film which can vary in flexibility and number .and diameter, as needed, to properly control the flow of the transfer medium from the forward area to the heel area. These channels are disposed within the insole or envelope 12 in side by side relation, as lateral tubular flutes inserted between the upper .and lower portions of the device, so that they appear as a series of tubes or round pipes fastened at the top and bottom of the envelope, so that they cannot move forward or backward, but may expand diametrically as required.

The medium contained within the envelope may be an encapsulated medium composed of a very low specific gravity hollow spheroidal organic hydrophobic, or hydrophilic body, designated 24 in FIGS. 5 and 6, such as hollow glass spheres or phenol formaldehyde resinous microspheres also sometimes called phenolic beads or micro balloons. Also suitable for this use are soluble or colloidal suspensoids in a liquid external phase, designated 25 in FIG. 5. These bodies may be used alone, as at 24 in FIG. 6, or suspended in a liquid, uid, or gas to enhance the flow property of the microspheres or colloidal suspensoids.

During the course of a normal step, the pediatric device of the present invention functions as follows: as the posterior area, or heel, comes down and pressure is exerted on this area of the weight transfer medium, the medium is pushed forward through and/or around the tubes or flutes to the anterior, or forward area, around and under the toes, but confined within the wall structures 17 and 18. As this material is forced through the channels 22 into the toe portions, the channels or flutes act to restric the flow in the area of the arch and expand under this influence of restricted flow to cradle .and apply supjwrting pressure against the arch while the flowable medium in the toe and heel portions applies like supporting pressure through the associated upper wall 17 and against the toe and heel portions of the foot. In this manner, the weight is distributed over the largest possible area, minimizing and practically eliminating specific pressure points, thus reducing friction.

As the step proceeds and the weight shifts from the heel to the toe area, the medium is again forced through the channels and into the heel area designated 20 in FIG. 4. Again, the supporting pressure is distributed over the entire area of the foot.

To further enhance the operation of this podiatric device, it is intended to incorporate in the upper portion of the shoe 10 an expandable resilient material which will yield with a minimum of pressure to relieve any prior foot distresses caused by conventional footwear.

Further, the restrictive tubular channel or flute devices may be incorporated in any section of the podiatric device or shoe structure in order to properly regulate the ow of the medium to alford the maximum cushioning effect as herein intended.

Having thus described and illustrated the preferred embodiment of our invention, it is understood that such description and illustration is by way of example only and that such modifications and changes as may suggest themselves to those skilled in the art are intended to fall within the scope of the present invention, which is limited only by the scope of the appended claims.

We claim:

1. A podiatric device comprising a shoe having an insole comprising a flexible envelope conforming generally in outline to and extending substantially the full length of a wearers foot and having an upper wall adapted to engage against the underside of such wearers foot and a lower wall connected along its side edges to the upper wall to form a closed envelope, collapsible and expansible chambers within the front and rear portions of said envelope extending substantially the full width of the ball portion and the heel portion, respectively, of the wearers foot, a plurality of tubular channel members extending lengthwise of and secured medially within said envelope generally in the area of and extending substantially the full width of the arch of the foot and establishing huid communication between said chambers, .and a flowable medium comprising finely divided solid particles and a lubricative material in said envelope owable between said chambers through the channel members for supporting the wearers foot whereby uniformly distributed supporting pressure is lapplied along the entire underside of the foot, said tubular channel members being relatively thin walled whereby shifting pressure from heel to toe in Walking progressively compresses said tubular channel members to cause tluid flow forwardly therethrough to expand the front chamber as the rear chamber collapses and vice versa.

2. A podiatric device according to claim 1 wherein said channel members are secured along their top and undersides to the respective upper and lower Walls of said envelope.

3. A podiatric device according to claim 1 wherein the envelope includes an upstanding portion adjacent its pe riphery at the heel portion thereof for engaging about lateral and posterior portions of the heel of a foot, said owable medium communicating into such upstanding portion of said envelope to provide yieldable support against said heel portions.

4. A podiatric device according to claim 1 wherein said channels taper toward said heel portion and are progressively reduced in cross-sectional area from adjacent the toe portion to adjacent the heel portion.

References Cited UNITED STATES PATENTS 2,762,134 9/1956 Town 128-594 2,981,010 4/1961 Aaskov 12S-594 X 3,325,920 6/1967 Werner et al 36-2.5

FOREIGN PATENTS 866,934 5/ 1961 Great Britain.

DALTON L. TRULUCK, Primary Examiner JOHN D. YASKO, Assistant Examiner U.S. Cl. X.R. 12S- 25.2, 582, 594

Patent Citations
Cited PatentFiling datePublication dateApplicantTitle
US2762134 *Jul 30, 1954Sep 11, 1956Town Edward WCushioning insoles for shoes
US2981010 *May 13, 1960Apr 25, 1961Helmer AaskovAir-filled sandals
US3325920 *Apr 27, 1964Jun 20, 1967Rosemount Eng Co LtdSki boot
GB866934A * Title not available
Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US3765422 *Dec 27, 1971Oct 16, 1973Smith HFluid cushion podiatric insole
US4108928 *Sep 16, 1976Aug 22, 1978Hanson Industries Inc.Method of producing a viscous flowable pressure-compensating fitting composition from hollow thermoplastic microblends with the use of high frequency heating and dispensing the composition into a sealable, flexible, protective enclosure means
US4361969 *Dec 16, 1980Dec 7, 1982Societe A Responsabilite Limitee TechnisyntheseShoe with pneumatic cushioning chamber
US4441499 *May 7, 1980Apr 10, 1984Comparetto John EDynamic orthotic platform
US4458430 *Mar 30, 1982Jul 10, 1984Peterson Lars G BShoe sole construction
US4502470 *Sep 16, 1982Mar 5, 1985Kiser John LPhysiologic device and method of treating the leg extremities
US4686781 *May 6, 1985Aug 18, 1987Bury Joseph RHollowshoe footwear
US4805601 *Mar 12, 1987Feb 21, 1989Eischen Sr Clement GDevice for lower limb extremity having weight-response pressure chambers
US4817304 *Aug 31, 1987Apr 4, 1989Nike, Inc. And Nike International Ltd.Footwear with adjustable viscoelastic unit
US4945905 *Feb 8, 1988Aug 7, 1990The Kendall CompanyCompressible boot
US5005575 *Oct 31, 1988Apr 9, 1991Luciano GeriPlantar support
US5069212 *Jul 17, 1989Dec 3, 1991The Dr. Cohen Group, Inc.Biomechanical orthotic with convertible inserts
US5253435 *Aug 19, 1991Oct 19, 1993Nike, Inc.Pressure-adjustable shoe bladder assembly
US5257470 *Feb 19, 1991Nov 2, 1993Nike, Inc.Shoe bladder system
US5416988 *Apr 23, 1993May 23, 1995Nike, Inc.Customized fit shoe and bladder therefor
US5641365 *Feb 2, 1996Jun 24, 1997The Hyper CorporationPre-pressurized in-line skate wheel
US5765298 *Mar 12, 1993Jun 16, 1998Nike, Inc.Athletic shoe with pressurized ankle collar
US5771606 *Sep 3, 1996Jun 30, 1998Reebok International Ltd.Support and cushioning system for an article of footwear
US5802739 *Jun 7, 1995Sep 8, 1998Nike, Inc.Complex-contoured tensile bladder and method of making same
US5868690 *Apr 30, 1997Feb 9, 1999Eischen, Sr.; Clement G.Inflatable boot and method for its manufacture
US5979078 *Oct 14, 1997Nov 9, 1999Nike, Inc.Cushioning device for a footwear sole and method for making the same
US6085815 *Jul 10, 1997Jul 11, 2000The Hyper CorporationPre-pressurized polyurethane skate wheel
US6102091 *Jul 10, 1997Aug 15, 2000The Hyper CorporationHollow core pneumatic wheel having contour conforming polyurethane wall
US6354020Sep 16, 1999Mar 12, 2002Reebok International Ltd.Support and cushioning system for an article of footwear
US6374514Mar 16, 2000Apr 23, 2002Nike, Inc.Footwear having a bladder with support members
US6385864Mar 16, 2000May 14, 2002Nike, Inc.Footwear bladder with controlled flex tensile member
US6402879Mar 16, 2000Jun 11, 2002Nike, Inc.Method of making bladder with inverted edge seam
US6453577May 19, 1999Sep 24, 2002Reebok International Ltd.Support and cushioning system for an article of footwear
US6457262Mar 16, 2000Oct 1, 2002Nike, Inc.Article of footwear with a motion control device
US6505420Apr 16, 1997Jan 14, 2003Reebok International Ltd.Cushioning member for an article of footwear
US6571490Mar 16, 2000Jun 3, 2003Nike, Inc.Bladder with multi-stage regionalized cushioning
US6722059Oct 25, 2001Apr 20, 2004Acushnet CompanyDynamic and static cushioning footbed
US6745499May 24, 2002Jun 8, 2004Reebok International Ltd.Shoe sole having a resilient insert
US6796056May 9, 2002Sep 28, 2004Nike, Inc.Footwear sole component with a single sealed chamber
US6845573Sep 16, 2002Jan 25, 2005Reebok International Ltd.Support and cushioning system for an article of footwear
US6931764Aug 4, 2003Aug 23, 2005Nike, Inc.Footwear sole structure incorporating a cushioning component
US6971193Mar 6, 2002Dec 6, 2005Nike, Inc.Bladder with high pressure replenishment reservoir
US7000335Jul 16, 2003Feb 21, 2006Nike, Inc.Footwear with a sole structure incorporating a lobed fluid-filled chamber
US7073276May 14, 2004Jul 11, 2006Nike, Inc.Footwear sole component with a single sealed chamber
US7080467Jun 27, 2003Jul 25, 2006Reebok International Ltd.Cushioning sole for an article of footwear
US7086179Jan 28, 2004Aug 8, 2006Nike, Inc.Article of footwear having a fluid-filled bladder with a reinforcing structure
US7086180Jan 28, 2004Aug 8, 2006Nike, Inc.Article of footwear having a fluid-filled bladder with a reinforcing structure
US7100310Jan 28, 2004Sep 5, 2006Nike, Inc.Article of footwear having a fluid-filled bladder with a reinforcing structure
US7128796Jul 16, 2003Oct 31, 2006Nike, Inc.Footwear with a sole structure incorporating a lobed fluid-filled chamber
US7131220 *Jun 7, 2002Nov 7, 2006Todd Douglas RicheyInflatable footwear
US7132032Apr 24, 2003Nov 7, 2006Nike, Inc.Bladder with multi-stage regionalized cushioning
US7141131Jan 28, 2004Nov 28, 2006Nike, Inc.Method of making article of footwear having a fluid-filled bladder with a reinforcing structure
US7156787Dec 23, 2003Jan 2, 2007Nike, Inc.Inflatable structure and method of manufacture
US7181867Jan 25, 2005Feb 27, 2007Reebok International Ltd.Support and cushioning system for an article of footwear
US7243443Aug 26, 2005Jul 17, 2007Nike, Inc.Footwear sole component with a single sealed chamber
US7244483May 29, 2002Jul 17, 2007Nike, Inc.Bladder with inverted edge seam and method of making the bladder
US7353625Nov 2, 2004Apr 8, 2008Reebok International, Ltd.Resilient cushioning device for the heel portion of a sole
US7383648Feb 23, 2005Jun 10, 2008Reebok International Ltd.Inflatable support system for an article of footwear
US7401420May 12, 2006Jul 22, 2008Nike, Inc.Article of footwear having a fluid-filled bladder with a reinforcing structure
US7426792Aug 26, 2005Sep 23, 2008Nike, Inc.Footwear sole component with an insert
US7434339Nov 15, 2005Oct 14, 2008Nike, Inc.Footwear with a sole structure incorporating a lobed fluid-filled chamber
US7448150Feb 28, 2005Nov 11, 2008Reebok International Ltd.Insert with variable cushioning and support and article of footwear containing same
US7448522Nov 11, 2003Nov 11, 2008Nike, Inc.Fluid-filled bladder for use with strap
US7475498Sep 12, 2006Jan 13, 2009Reebok International Ltd.Support and cushioning system for an article of footwear
US7484318 *Jun 15, 2005Feb 3, 2009Kenneth Cole Productions (Lic), Inc.Therapeutic shoe sole design, method for manufacturing the same, and products constructed therefrom
US7533477Oct 3, 2005May 19, 2009Nike, Inc.Article of footwear with a sole structure having fluid-filled support elements
US7556846Jan 28, 2004Jul 7, 2009Nike, Inc.Fluid-filled bladder with a reinforcing structure
US7562469Oct 14, 2005Jul 21, 2009Nike, Inc.Footwear with fluid-filled bladder and a reinforcing structure
US7600331May 19, 2008Oct 13, 2009Reebok International Ltd.Inflatable support system for an article of footwear
US7622014Jul 1, 2005Nov 24, 2009Reebok International Ltd.Method for manufacturing inflatable footwear or bladders for use in inflatable articles
US7707744Aug 22, 2006May 4, 2010Nike, Inc.Footwear with a sole structure incorporating a lobed fluid-filled chamber
US7707745Dec 29, 2006May 4, 2010Nike, Inc.Footwear with a sole structure incorporating a lobed fluid-filled chamber
US7717869Feb 18, 2005May 18, 2010Eischco, Inc.Pressure maintained inflatable boot
US7774955Apr 17, 2009Aug 17, 2010Nike, Inc.Article of footwear with a sole structure having fluid-filled support elements
US7805859 *Dec 18, 2008Oct 5, 2010Kenneth Cole Productions (Lic), Inc.Therapeutic shoe sole design
US7810255Feb 6, 2007Oct 12, 2010Nike, Inc.Interlocking fluid-filled chambers for an article of footwear
US7810256Apr 17, 2009Oct 12, 2010Nike, Inc.Article of footwear with a sole structure having fluid-filled support elements
US7930839Oct 7, 2009Apr 26, 2011Reebok International Ltd.Inflatable support system for an article of footwear
US7950169May 10, 2007May 31, 2011Nike, Inc.Contoured fluid-filled chamber
US8141276 *Nov 21, 2005Mar 27, 2012Frampton E. EllisDevices with an internal flexibility slit, including for footwear
US8205356 *Nov 21, 2005Jun 26, 2012Frampton E. EllisDevices with internal flexibility sipes, including siped chambers for footwear
US8256147 *May 25, 2007Sep 4, 2012Frampton E. EliisDevices with internal flexibility sipes, including siped chambers for footwear
US8291618 *May 18, 2007Oct 23, 2012Frampton E. EllisDevices with internal flexibility sipes, including siped chambers for footwear
US8302234Apr 17, 2009Nov 6, 2012Nike, Inc.Article of footwear with a sole structure having fluid-filled support elements
US8302328Jun 29, 2010Nov 6, 2012Nike, Inc.Article of footwear with a sole structure having fluid-filled support elements
US8312643Sep 28, 2010Nov 20, 2012Nike, Inc.Article of footwear with a sole structure having fluid-filled support elements
US8434244Jan 9, 2009May 7, 2013Reebok International LimitedSupport and cushioning system for an article of footwear
US8494324May 16, 2012Jul 23, 2013Frampton E. EllisWire cable for electronic devices, including a core surrounded by two layers configured to slide relative to each other
US8540838Nov 23, 2009Sep 24, 2013Reebok International LimitedMethod for manufacturing inflatable footwear or bladders for use in inflatable articles
US8561323Jan 24, 2012Oct 22, 2013Frampton E. EllisFootwear devices with an outer bladder and a foamed plastic internal structure separated by an internal flexibility sipe
US8562678May 16, 2012Oct 22, 2013Frampton E. EllisSurgically implantable electronic and/or electromechanical prosthetic device enclosed in an inner bladder surrounded by an outer bladder and having an internal sipe between bladders
US8567095Apr 27, 2012Oct 29, 2013Frampton E. EllisFootwear or orthotic inserts with inner and outer bladders separated by an internal sipe including a media
US8572786Oct 12, 2010Nov 5, 2013Reebok International LimitedMethod for manufacturing inflatable bladders for use in footwear and other articles of manufacture
US8656608Sep 13, 2012Feb 25, 2014Nike, Inc.Article of footwear with a sole structure having fluid-filled support elements
US8657979Apr 13, 2007Feb 25, 2014Nike, Inc.Method of manufacturing a fluid-filled bladder with a reinforcing structure
US8670246Feb 24, 2012Mar 11, 2014Frampton E. EllisComputers including an undiced semiconductor wafer with Faraday Cages and internal flexibility sipes
US8732868Feb 12, 2013May 27, 2014Frampton E. EllisHelmet and/or a helmet liner with at least one internal flexibility sipe with an attachment to control and absorb the impact of torsional or shear forces
US8848368Jun 28, 2013Sep 30, 2014Frampton E. EllisComputer with at least one faraday cage and internal flexibility sipes
US8873914Feb 15, 2013Oct 28, 2014Frampton E. EllisFootwear sole sections including bladders with internal flexibility sipes therebetween and an attachment between sipe surfaces
US8911577Feb 17, 2011Dec 16, 2014Nike, Inc.Contoured fluid-filled chamber
US8925117Feb 20, 2013Jan 6, 2015Frampton E. EllisClothing and apparel with internal flexibility sipes and at least one attachment between surfaces defining a sipe
US8959804Apr 3, 2014Feb 24, 2015Frampton E. EllisFootwear sole sections including bladders with internal flexibility sipes therebetween and an attachment between sipe surfaces
DE3406504A1 *Feb 23, 1984Aug 29, 1985Claus TietjenShoe
EP0032084A1 *Dec 12, 1980Jul 15, 1981S.A.R.L. TechnisyntheseShoes, particularly sports shoes
EP0316289A2 *Nov 8, 1988May 17, 1989Corti, LucianaPlantar support
EP0389215A1 *Mar 19, 1990Sep 26, 1990Nike International Ltd.Athletic shoe with pressurized ankle collar
EP0461754A2 *May 1, 1991Dec 18, 1991Brooks Sports, Inc.Fluid insert forefoot footwear
EP0963165A1 *May 23, 1996Dec 15, 1999Nike International LtdComplex-contoured tensile bladder
EP1529457A1 *Aug 2, 2002May 11, 2005Matthias HahnShoe for patient with diabetes
EP2729031A1 *Jun 29, 2012May 14, 2014Novation iQ LLCShoe insole
WO2013006393A1 *Jun 29, 2012Jan 10, 2013Vertex L.L.C.Shoe insole
Classifications
U.S. Classification36/154, 601/27
International ClassificationA43B13/20, A43B17/03, A43B13/38, A43B13/40, A43B17/00, A43B13/18
Cooperative ClassificationA43B13/20, A43B17/03, A43B13/40
European ClassificationA43B13/40, A43B13/20, A43B17/03