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US3922801A - Liquid filled orthopedic apparatus - Google Patents

Liquid filled orthopedic apparatus Download PDF

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Publication number
US3922801A
US3922801A US37972673A US3922801A US 3922801 A US3922801 A US 3922801A US 37972673 A US37972673 A US 37972673A US 3922801 A US3922801 A US 3922801A
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Prior art keywords
ampules
liquid
provided
lamina
apparatus
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Patrick Thomas Zente
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Patrick Thomas Zente
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    • AHUMAN NECESSITIES
    • A43FOOTWEAR
    • A43BCHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B13/00Soles; Sole and heel units
    • A43B13/14Soles; Sole and heel units characterised by the constructive form
    • A43B13/18Resilient soles
    • A43B13/20Pneumatic soles filled with a compressible fluid, e.g. air, gas

Abstract

An apparatus and method of making it is provided whereby a liquid-filled shoe insole is produced. The insole comprises discreet internal liquid-filled ampules which are strategically placed between upper and lower laminae and sealed in place to provide separate support for various parts of the foot.

Description

United States Patent Zente Dec. 2, 1975 [54] LIQUID FILLED ()RTHOPEDIC 2,641,066 6/1953 Filardo 36/44 X APPARATUS 3,724,l06 4/1973 Magidson 36/44 [76] Inventor: Patrick Thomas Zente, 34 Nance Road w Orange, 07052 Primary Examiner-Alfred R. Guest [22] Filed: July 16, 1973 21] Appl. No.: 379,726 ABSTRACT An apparatus and method of making it is provided [52] US. Cl. 36/44 whereby a liquid-filled shoe insole is produced. The [51] Int. Cl. A43B 13/40 insole comprises discreet internal liquid-filled ampules [58] Field of Search 36/44, 29,30 R which are strategically placed between upper and lower laminae and sealed in' place to provide separate [56] References Cited support for various parts of the foot.

UNITED STATES PATENTS 8/1 949 Dumm 36/44 X 7 Claims, 6 Drawing Figures LIQUID FILLED ORTI-IOPEDIC APPARATUS Orthopedic researchers have over the years developed numerous ways to modify shoes for both remedial and preventative reasons. Arch supports, for example, have long been known to enhance the support a shoe affords persons with weak arches. Pads can be placed in shoes to enhance the comfort of a wearer who suffers pain at the metatarsal. Wedges can be placed in the in side or outside edges of soles or heels to afford a variety of canting to counter many abnormalities of the foot such as toeing in or toeing out", and the like.

Also widely employed are various types of shoe insoles which can be purchased separately from the shoes and installed by the wearer. Generally, such insoles are of two types, those sold by retail merchants and those purchased in accordance with medical prescription. The former usually consist of no more than a soft foam synthetic or rubber and are employed to soften or cushion the feel of the shoe. Although these have enjoyed a reasonable amount of success in the marketplace, the purchaser soon learns of serious disadvantages inherent in such devices. Soon after he begins to wear them he finds that, for reasons including heat, perspiration and wear fatigue, the foam material in the insole compresses and loses its cushioning abilityjthereby becoming useless. In addition, these devices have a tendency to absorb moisture without dissipating it. The cellular nature of the foam contains this moisture. Thus precluding rapid drying during periods of non-use. Conse quently, the wearer often finds himself wearing clamp shoes, a situation which enhances the probability of such disadvantages as odiferousness and a fungus infection closely akin to ringworn known as athlete s foot.

Prescription insoles, on the other hand, areexpensive and rarely confortable, being generally constructed on a rigid backing, usually leather-covered metal. Because they lack an inherent flexibility, the wearer experiences chafing and pressure, especially in the areas of the heel, arch and metatarsal.

Many attempts have been made to avoid these prior art limitations, including the use of liquid fillers, but all have been plagued by one or more undesirable flaws. Indicative of such attempts are US. Pat. Nos. 532,429; 1,069,001; 1,193,608; 1,148,376; 1,517,171; 2,546,296; an'd2,549,343. These patents teach the use of interconnected fluid compartments filled with air or liquids, foam soles and insoles, honeycomb sole structures, and air filled outer soles. However, none of these references suggest either the unique ,structure and method of making the present invention nor the unexpectedly superior results which have been achieved by the present invention.

Despite these and other numerous attempts at enhancing orthopedic therapy and comfort, there has yet to be devised a method of satisfactorily combining all of the desirable features into a single durable insole. To solve this problem, a comprehensive research and development program was engaged in to devise such an insole, taking into consideration the specific sources of discomfort which are common to most sufferers of foot maladies. In the course of this work, the present invention was discovered.

Briefly stated, this discovery comprises encasing a liquid medium in a soft, flexible material such that the liquid is encased in strategically located, mutually exclusive, discrete compartments or ampules. These ampules are contained between flexible laminae to provide a shoe insole shaped to substantially conform to the inside bottom of a shoe. More specifically the invention comprises a flexible upper lamina and a flexible lower lamina which are joined at their periphery to form a flexible shoe insole. Inside or between the laminae are flexible, liquid-filled ampules which are fixed in position to support various parts ofthe foot. At least one separate ampule is provided to support each of (a) the toes, (b) the metatarsal, (c) the arch, and (d) the heel.

Specific embodiments of this invention are shown in the Figures. FIG. 1 is provided to show an insole of the present invention containing 11 ampules in a preferred spatial arrangement to-provide maximum support for the toes, metatarsal, arch and heel. FIG. 2 depicts the separate ampules utilized in a preferred embodiment and their individual shapes. FIG. 3 illustrates the formation of the bottom lamina during manufacture of the insole. FIGS. 4a and 4b are cross-sectional views of the heel portion of FIG. 1 along the line 44. FIG. 5 shows a die or template which can be used in making the ampules and lower lamina.

FIG. 1 shows a preferred embodiment in which ampules 1 and 2 are provided to cushion the toes, ampules 3, 4, and 5 are provided for metatarsal support, ampules 6 and 7 render arch support and ampules 8 and 9 cushion and support the heel. In another preferred embodiment, ampules 17 and 18 are provided to further support the arch and outside edge of the foot.

The construction of the insole is illustrated by FIG. 4a and 4b which are cross-sectional views of the heel section along lines 44 of FIG. 1. Upper lamina 10 is joined and sealed to lower lamina 11 at points 12, 13,

and 14. Point 12 is the junction between the outer edges or periphery of the laminae whereas junctions at points 13 and 14 serve to permanently place and seal the heel ampules 8 and 9. Hence, ampule 8 is substantially toroidal in shape, whereas 9 is substantially cylindrical. Of course, ampule 9 may take on equivalent shapes such as ovoid. Alternatively, ampule 9 may be omitted asshown in FIG. 4b. In this embodiment, toroidal ampule 8 is sealed between junctures of the upper and lower laminae 12 and 15, the latter seal defining a circular area central to the toroidal ampule 8.

All of the ampules are substantially filled with liquid 16 illustrated in FIGS. 4a and 4b.The liquid filler may be selected from numerous media including water; alcohols 'such as ethanol, isopropanol, n-hexanol, cyclohexanol, trichloroethanol, lauryl alcohol, n-octanol, and n-decanol; esters such as ethyl acetate, isopropyl formate, methyl and ethyl propionate, and isopropyl acetate; halogenated compounds such as dichloroethylene, chloroform, and carbon tetrachloride; and oils such as mineral oil and silicon oil. It will be appreciated by a skilled artisan that the choice of liquid filler is dictated by the specific parameters of intended use and materials of construction. Hence, depending on the hydrodynamics desired for a particular use, a liquid of relatively low viscosity may be chosen. Alternatively, it may be desirable to use a liquid of relatively high viscosity such as a mineral oil or a higher alcohol or ester. Of course, any liquid mixture may be employed which satisfies the requirements of viscosity and compatibility with materials of construction. For example, if the insole is constructed of polyvinyl chloride (PVC), one would not employ as afiller a liquid which is a solvent for PVC or which would leach out the plasticizer in the PVC. Although the range of usable liquids is practically limitless, it is preferred to use water or mineral oil because of (a) their low cost and (b) theirharmless nature with respect to human skin should the construction material fail and the liquid contact the wearers foot.

Equally broad is the selection of material from which the laminae and ampules are constructed. This material should be soft and pliant. It should be strong enough to withstand constant flexing under the weight of the wearer. Illustrative of these are rubber, foamed rubber, ABS copolymers, polyethylene, foamed polyethylene, polyvinyl choride and its copolymers, polyurethane, foamed polyurethane, polyisobutylene, and polyisoprene. Also of use are various resin mixtures and copolymers which fall within the framework of softness, strength and compatibility with the filler liquid. In addition, the construction material must lend itself to sealability so that permanent seals between laminae can be achieved.

Broadly, the insole is made by first forming liquidfilled ampules of the shape desired for the specific orthopedic functions desired. These ampules are then placed between two outer laminae which are shaped to conform to the insole of a shoe. The laminae are then sealed together to permanently position the ampules.

A particular method for making the invention is described as follows: 1

A die such as that illustrated in FIG. 5 is fabricated from brass and mounted in an aluminum base 20. The die 21 is shaped in accordance with a particular shoe size which is defined by raised ridge 22 which extends peripherally around the insole outline. Inside the raised periphery portion are other ridges or raised portions such as 23, 24 and 25 which define concave sections which correspond generally to the desired ampule shapes. At the bottom of each concave section, a hole is drilled completely through the die and its base. The purpose of these holes are to enablevacuum forming as will become evident, infra.

To form the ampules, a first'lower lamina of flexible material impervious to the liquid to be employed as a filler is placed over the die. A heat source sufficient to soften the material is applied from above while simultaneously, a vacuum is drawn from the bottom of the die. Upon removal of the heat source and cooling, the first lower lamina now conforms to the shape of the die having raised ridges defining first concave sections congruent to those of the die. Such a formed lamina is depicted by FIG. 3.

Next, the concave sections are filled with the liquid to be employed and the first lower lamina, while still in place on the die, is covered by a first upper lamina. The two laminae are then sealed at their periphery and at the raised portions, utilizing any of the numerous known methods such as heat fusion, pressure sealing, cement, high frequency sound waves, etc. One preferred method is by use of a 1 /2 kilowatt high frequency generator manufactured by Sealomatic Electronics Corporation of Brooklyn, N.Y. The finished ampules are then removed from the die and are left intact as a unitary structure or separated from each other by seal tearing. Hence, the first laminae may be sealed to facilitate tearing to separate the ampules.

A second lower lamina is then formed in the same way as the first lower lamina. The same or a slightly larger die can be used for this purpose and the finished second lower lamina is shaped to provide raised ridges defining second concave sections which conform substantially identically to the ampules and to the first concave sections. The ampules are then placed on the second lower lamina such that each ampule fits into its respective second concave section. The emplaced ampules are then covered with a second upper lamina which is sealed to the second lower lamina at their periphery and at the raised portions thereby completely enclosing the ampules and permanently positioning them.

The following example is provided to further illustate the present invention.

EXAMPLE A sheet of polyvinyl chloride manufactured by Union Carbide Corporation under the trademark Krene, specification No. KDA-2088, which is pinhole-free and having a thickness of 8-2 0 mils was laid over a die as described supra and shown in FIG. 5. Heat sufficient to soften the material was applied from above and a partial vacuum was applied to the base of th4 die. After the softened PVC had conformed to the die, the heat source was removed and the shaped PVC was cooled by spraying it with compressed air at ambient temperature. The molded sheet was then flooded with water to fill the concave sections formed in it.

Anothersheet of the same material was then placed over the water-filled sheet and die and sealed in a 1 /2 kilowatt high frequency generator manufactured by Sealomatic Electronics Corporation. Upon removal from the sealing generator, the sealed ampules produced were separated from each other. The separated ampules conformed in shape substantially to FIG. 2 which depicts the separated ampules.

Next, a sheet of the same PVC material was placed over the same die, and formed by application of heat and vacuum substantially as above. After cooling this formed sheet with compressed air, the separated ampules were each placed in their correspondingly shaped concave sections and covered by another sheet of the same PVC. The ampules were then sealed between the PVC sheets using the above high frequency generator. After sealing, the finished insole was removed from the sealing unit and excess PVC was trimmed from the insole periphery.

Other features and embodiments of the present invention will be apparent in light of the foregoing discussion. The foregoing example is presented as merely illustrative of a preferred embodiment and is in no way meant to limit the invention.

I claim:

1. An apparatus for treating foot defects and for promoting foot comfort which comprises:

flexible, liquid-filled ampules, at least one separate ampule being provided and positioned to support each of (a) the toes, (b) the metatarsal, (c) the arch, and (d) the heel; and

a flexible upper lamina and a flexible lower lamina,

the laminae containing the ampules, and the lami nae being sealed at their periphery and around the perimeter of each of the ampules, thereby permanently positioning the ampules and forming the apparatus. 2. The apparatus of claim 1 in which the liquid is mineral oil.

3,922,801 6 3. The apparatus of claim 1 in which (a) 2 ampules 5. The apparatus of claim 1 in which one ampule is are provided for the toes, (b) 3 ampules are provided provided for the heel, said ampule being substantially for the metatarsal, (c) 2 ampules are provided for the toroidal in shape.

arch, and (d) 2 ampules are provided for the heel. 6. The apparatus of claim 1 in which two ampules are 4. The apparatus of claim 3 in which one of the am- 5 provided for the metatarsal. pules provided for the heel is substantially toroidal in 7. The apparatus in claim 1 in which the liquid is washape, the other being substantially cylindrical and poter.

sitioned centrally inside said toroidal ampule.

Claims (7)

1. An apparatus for treating foot defects and for promoting foot comfort which comprises: flexible, liquid-filled ampules, at least one separate ampule being provided and positioned to support each of (a) the toes, (b) the metatarsal, (c) the arch, and (d) the heel; and a flexible upper lamina and a flexible lower lamina, the laminae containing the ampules, and the laminae being sealed at their periphery and around the perimeter of each of the ampules, thereby permanently positioning the ampules and forming the apparatus.
2. The apparatus of claim 1 in which the liquid is mineral oil.
3. The apparatus of claim 1 in which (a) 2 ampules are provided for the toes, (b) 3 ampules are provided for the metatarsal, (c) 2 ampules are provided for the arch, and (d) 2 ampules are provided for the heel.
4. The apparatus of claim 3 in which one of the ampules provided for the heel is substantially toroidal in shape, the other being substantially cylindrical and positioned centrally inside said toroidal ampule.
5. The apparatus of claim 1 in which one ampule is provided for the heel, said ampule being substantially toroidal in shape.
6. The apparatus of claim 1 in which two ampules are provided for the metatarsal.
7. The apparatus in claim 1 in which the liquid is water.
US3922801A 1973-07-16 1973-07-16 Liquid filled orthopedic apparatus Expired - Lifetime US3922801A (en)

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Cited By (49)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4017931A (en) * 1976-05-20 1977-04-19 The Jonathan-Alan Corporation Liquid filled insoles
US4115934A (en) * 1977-02-11 1978-09-26 Hall John M Liquid shoe innersole
US4305212A (en) * 1978-09-08 1981-12-15 Coomer Sven O Orthotically dynamic footwear
FR2501480A1 (en) * 1981-03-13 1982-09-17 Coomer Sven dynamic shock absorbing shoe structure - has sole and upper made of flexible material, establishing resilient cup shape
US4413430A (en) * 1981-10-30 1983-11-08 Brown Dennis N Skate boot insert
US4567677A (en) * 1984-08-29 1986-02-04 Pittsburgh Plastics Manufacturing Water filled shoe insole
US4603493A (en) * 1984-09-24 1986-08-05 Eston Gary A Insole with moldable material
US4633877A (en) * 1984-08-07 1987-01-06 Duramet Systems, Inc. Dynamic foot support and kit therefor
US4709921A (en) * 1986-03-05 1987-12-01 Valuikas Antonette G Weighted insole
US4799319A (en) * 1986-06-18 1989-01-24 Max Zellweger Device for warming the foot of a wearer
EP0316289A2 (en) * 1987-11-09 1989-05-17 Corti, Luciana Plantar support
US5686167A (en) * 1995-06-05 1997-11-11 Robert C. Bogert Fatigue resistant fluid containing cushioning device for articles of footwear
US5878510A (en) * 1993-04-15 1999-03-09 Schoesler; Henning R. Fluid filled insole
US5930916A (en) * 1996-06-14 1999-08-03 Connor; Dennis J. Insoles liners and footwear incorporating loofah material
US5979086A (en) * 1995-07-14 1999-11-09 Vindriis; Soeren Insole having multiple fluid-containing chambers
US6076283A (en) * 1998-11-30 2000-06-20 Srl, Inc. Shoes and shoe outsoles for wet surfaces
US6092310A (en) * 1993-04-15 2000-07-25 Schoesler; Henning R. Fluid filled insole
US6138382A (en) * 1993-04-15 2000-10-31 Schoesler; Henning R. Fluid filled insole
US6178663B1 (en) 1993-04-15 2001-01-30 Henning R. Schoesler Fluid filled insole with metatarsal pad
US20010039746A1 (en) * 1997-05-14 2001-11-15 Hans Seiter Circuit for the protection of electrical devices
US6463612B1 (en) * 1993-07-23 2002-10-15 Nike, Inc. Bladder and method of making the same
US6616544B2 (en) * 1998-03-27 2003-09-09 Kenneth Robert Kimmorley Correct stance indication device
US6715219B2 (en) * 2001-12-05 2004-04-06 Samuel Bock Weighted footwear insert
US6722059B2 (en) 2001-10-25 2004-04-20 Acushnet Company Dynamic and static cushioning footbed
US20040118017A1 (en) * 2002-12-23 2004-06-24 Jacob A. Martinez And John C. Hardt Insole with improved cushioning and anatomical centering device
US20040205984A1 (en) * 2002-02-11 2004-10-21 Hardt John C Anti-roll arch support insole
US20050166425A1 (en) * 2002-04-24 2005-08-04 Hams Seiter Shoe insole for diabetics
US20050241185A1 (en) * 2004-04-28 2005-11-03 Flood Michael T Shoe insert
US20060064896A1 (en) * 2004-09-24 2006-03-30 Cherng-Shian Luan Liner structure for shoes
US20060230635A1 (en) * 2005-04-14 2006-10-19 Nike, Inc. Fluid-filled bladder for footwear and other applications
US20060230636A1 (en) * 2005-04-14 2006-10-19 Nike, Inc. Fluid-filled bladder for footwear and other applications
US20100071232A1 (en) * 2008-09-25 2010-03-25 Steele George L Cushioned shoe construction including toe and heel plates
EP2661979A3 (en) * 2007-02-06 2014-03-05 Nike International Ltd. Interlocking fluid-filled chambers for an article of footwear
US8671591B2 (en) 2011-02-21 2014-03-18 Brownmed, Inc. Massaging footwear
US9144265B2 (en) 2011-09-14 2015-09-29 Shoes For Crews, Llc Shoe with support system
DE102014008513A1 (en) * 2014-06-03 2015-12-03 Jan Siemers Contact insert for soles
US9238294B2 (en) * 2014-06-18 2016-01-19 Nexplanar Corporation Polishing pad having porogens with liquid filler
USD758058S1 (en) 2015-06-25 2016-06-07 Spenco Medical Corporation Heel cup
USD761543S1 (en) 2015-06-25 2016-07-19 Spenco Medical Corporation Shoe insole
USD762367S1 (en) 2015-06-25 2016-08-02 Spenco Medical Corporation Shoe insole
USD762368S1 (en) 2015-06-25 2016-08-02 Spenco Medical Corporation Shoe insole
USD762366S1 (en) 2015-06-25 2016-08-02 Spenco Medical Corporation Shoe insole
USD766560S1 (en) 2015-06-25 2016-09-20 Implus Footcare, Llc Shoe insole
USD771922S1 (en) 2015-09-15 2016-11-22 Implus Footcare, Llc Shoe insole
USD778040S1 (en) 2015-09-25 2017-02-07 Implus Footcare, Llc Shoe insole
USD778567S1 (en) 2015-09-17 2017-02-14 Implus Footcare, Llc Shoe insole
USD797429S1 (en) 2015-07-15 2017-09-19 Implus Footcare, Llc Shoe insole
USD797430S1 (en) 2015-07-15 2017-09-19 Implus Footcare, Llc Shoe insole
US9788602B2 (en) 2012-08-31 2017-10-17 Implus Footcare, Llc Basketball insole

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2477588A (en) * 1946-02-08 1949-08-02 George H Dumm Hydraulic insole
US2641066A (en) * 1950-09-05 1953-06-09 Filardo Laurin Metatarsal length compensating device
US3724106A (en) * 1971-06-29 1973-04-03 H Magidson Insole structure

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2477588A (en) * 1946-02-08 1949-08-02 George H Dumm Hydraulic insole
US2641066A (en) * 1950-09-05 1953-06-09 Filardo Laurin Metatarsal length compensating device
US3724106A (en) * 1971-06-29 1973-04-03 H Magidson Insole structure

Cited By (66)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4017931A (en) * 1976-05-20 1977-04-19 The Jonathan-Alan Corporation Liquid filled insoles
US4115934A (en) * 1977-02-11 1978-09-26 Hall John M Liquid shoe innersole
US4305212A (en) * 1978-09-08 1981-12-15 Coomer Sven O Orthotically dynamic footwear
FR2501480A1 (en) * 1981-03-13 1982-09-17 Coomer Sven dynamic shock absorbing shoe structure - has sole and upper made of flexible material, establishing resilient cup shape
US4413430A (en) * 1981-10-30 1983-11-08 Brown Dennis N Skate boot insert
US4633877A (en) * 1984-08-07 1987-01-06 Duramet Systems, Inc. Dynamic foot support and kit therefor
US4567677A (en) * 1984-08-29 1986-02-04 Pittsburgh Plastics Manufacturing Water filled shoe insole
US4603493A (en) * 1984-09-24 1986-08-05 Eston Gary A Insole with moldable material
US4709921A (en) * 1986-03-05 1987-12-01 Valuikas Antonette G Weighted insole
US4799319A (en) * 1986-06-18 1989-01-24 Max Zellweger Device for warming the foot of a wearer
EP0316289A2 (en) * 1987-11-09 1989-05-17 Corti, Luciana Plantar support
EP0316289A3 (en) * 1987-11-09 1990-05-09 Luciano Geri Plantar support
US6092310A (en) * 1993-04-15 2000-07-25 Schoesler; Henning R. Fluid filled insole
US5878510A (en) * 1993-04-15 1999-03-09 Schoesler; Henning R. Fluid filled insole
US6178663B1 (en) 1993-04-15 2001-01-30 Henning R. Schoesler Fluid filled insole with metatarsal pad
US6138382A (en) * 1993-04-15 2000-10-31 Schoesler; Henning R. Fluid filled insole
US6463612B1 (en) * 1993-07-23 2002-10-15 Nike, Inc. Bladder and method of making the same
US5686167A (en) * 1995-06-05 1997-11-11 Robert C. Bogert Fatigue resistant fluid containing cushioning device for articles of footwear
US5979086A (en) * 1995-07-14 1999-11-09 Vindriis; Soeren Insole having multiple fluid-containing chambers
US5992055A (en) * 1996-06-14 1999-11-30 Connor; Dennis J. Insoles, liners and footwear incorporating sisal material
US5930916A (en) * 1996-06-14 1999-08-03 Connor; Dennis J. Insoles liners and footwear incorporating loofah material
US20010039746A1 (en) * 1997-05-14 2001-11-15 Hans Seiter Circuit for the protection of electrical devices
US7322130B2 (en) * 1997-05-14 2008-01-29 Hans Seiter Inner sole for a shoe
US6616544B2 (en) * 1998-03-27 2003-09-09 Kenneth Robert Kimmorley Correct stance indication device
US20040049952A1 (en) * 1998-03-27 2004-03-18 Kimmorley Kenneth Robert Correct stance indication device
US6076283A (en) * 1998-11-30 2000-06-20 Srl, Inc. Shoes and shoe outsoles for wet surfaces
US6722059B2 (en) 2001-10-25 2004-04-20 Acushnet Company Dynamic and static cushioning footbed
US6715219B2 (en) * 2001-12-05 2004-04-06 Samuel Bock Weighted footwear insert
US20040205984A1 (en) * 2002-02-11 2004-10-21 Hardt John C Anti-roll arch support insole
US20050166425A1 (en) * 2002-04-24 2005-08-04 Hams Seiter Shoe insole for diabetics
US7380352B2 (en) 2002-04-24 2008-06-03 Hans Seiter Shoe insole for diabetics
US7107705B2 (en) 2002-12-23 2006-09-19 Spenco Medical Corporation Insole with improved cushioning and anatomical centering device
US20040118017A1 (en) * 2002-12-23 2004-06-24 Jacob A. Martinez And John C. Hardt Insole with improved cushioning and anatomical centering device
US20050241185A1 (en) * 2004-04-28 2005-11-03 Flood Michael T Shoe insert
US20060064896A1 (en) * 2004-09-24 2006-03-30 Cherng-Shian Luan Liner structure for shoes
US8060964B2 (en) 2005-04-14 2011-11-22 Nike, Inc. Fluid-filled bladder for footwear and other applications
US20080110047A1 (en) * 2005-04-14 2008-05-15 Nike, Inc. Fluid-Filled Bladder for Footwear and Other Applications
US20060230636A1 (en) * 2005-04-14 2006-10-19 Nike, Inc. Fluid-filled bladder for footwear and other applications
US7401369B2 (en) * 2005-04-14 2008-07-22 Nike, Inc. Fluid-filled bladder for footwear and other applications
US7513066B2 (en) * 2005-04-14 2009-04-07 Nike, Inc. Fluid-filled bladder for footwear and other applications
US20090151197A1 (en) * 2005-04-14 2009-06-18 Nike, Inc. Fluid-Filled Bladder For Footwear And Other Applications
US8667710B2 (en) 2005-04-14 2014-03-11 Nike, Inc. Fluid-filled bladder for footwear and other applications
US20100077556A1 (en) * 2005-04-14 2010-04-01 Nike, Inc. Fluid-Filled Bladder for Footwear and Other Applications
US7694439B2 (en) 2005-04-14 2010-04-13 Nike, Inc. Fluid-filled bladder for footwear and other applications
US7845038B2 (en) 2005-04-14 2010-12-07 Nike, Inc. Fluid-filled bladder for footwear and other applications
US20060230635A1 (en) * 2005-04-14 2006-10-19 Nike, Inc. Fluid-filled bladder for footwear and other applications
EP2661979A3 (en) * 2007-02-06 2014-03-05 Nike International Ltd. Interlocking fluid-filled chambers for an article of footwear
US20100071232A1 (en) * 2008-09-25 2010-03-25 Steele George L Cushioned shoe construction including toe and heel plates
US8117769B2 (en) * 2008-09-25 2012-02-21 Munro & Company, Inc. Cushioned shoe construction including toe and heel plates
US8671591B2 (en) 2011-02-21 2014-03-18 Brownmed, Inc. Massaging footwear
US9144265B2 (en) 2011-09-14 2015-09-29 Shoes For Crews, Llc Shoe with support system
US9788602B2 (en) 2012-08-31 2017-10-17 Implus Footcare, Llc Basketball insole
DE102014008513A1 (en) * 2014-06-03 2015-12-03 Jan Siemers Contact insert for soles
US9238294B2 (en) * 2014-06-18 2016-01-19 Nexplanar Corporation Polishing pad having porogens with liquid filler
USD766560S1 (en) 2015-06-25 2016-09-20 Implus Footcare, Llc Shoe insole
USD758058S1 (en) 2015-06-25 2016-06-07 Spenco Medical Corporation Heel cup
USD761543S1 (en) 2015-06-25 2016-07-19 Spenco Medical Corporation Shoe insole
USD762367S1 (en) 2015-06-25 2016-08-02 Spenco Medical Corporation Shoe insole
USD762368S1 (en) 2015-06-25 2016-08-02 Spenco Medical Corporation Shoe insole
USD762366S1 (en) 2015-06-25 2016-08-02 Spenco Medical Corporation Shoe insole
USD797429S1 (en) 2015-07-15 2017-09-19 Implus Footcare, Llc Shoe insole
USD797430S1 (en) 2015-07-15 2017-09-19 Implus Footcare, Llc Shoe insole
USD771922S1 (en) 2015-09-15 2016-11-22 Implus Footcare, Llc Shoe insole
USD778567S1 (en) 2015-09-17 2017-02-14 Implus Footcare, Llc Shoe insole
USD778040S1 (en) 2015-09-25 2017-02-07 Implus Footcare, Llc Shoe insole
USD803539S1 (en) 2015-09-25 2017-11-28 Implus Footcare, Llc Shoe insole

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