US3791050A - Shoe sole and heel - Google Patents
Shoe sole and heel Download PDFInfo
- Publication number
- US3791050A US3791050A US00219081A US3791050DA US3791050A US 3791050 A US3791050 A US 3791050A US 00219081 A US00219081 A US 00219081A US 3791050D A US3791050D A US 3791050DA US 3791050 A US3791050 A US 3791050A
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- US
- United States
- Prior art keywords
- shoe
- sole
- heel
- shoe sole
- spheres
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
- B29D35/00—Producing footwear
- B29D35/0009—Producing footwear by injection moulding; Apparatus therefor
-
- A—HUMAN NECESSITIES
- A43—FOOTWEAR
- A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
- A43B13/00—Soles; Sole-and-heel integral units
- A43B13/02—Soles; Sole-and-heel integral units characterised by the material
- A43B13/12—Soles with several layers of different materials
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
- B29D35/00—Producing footwear
- B29D35/02—Producing footwear made in one piece using a moulding technique, e.g. by injection moulding or casting
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
- B29D35/00—Producing footwear
- B29D35/12—Producing parts thereof, e.g. soles, heels, uppers, by a moulding technique
- B29D35/122—Soles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
- B29D35/00—Producing footwear
- B29D35/12—Producing parts thereof, e.g. soles, heels, uppers, by a moulding technique
- B29D35/14—Multilayered parts
Definitions
- ABSTRACT A shoe sole and heel integrally molded of an elastomeric material having a filler of hollow glass spheres dispersed therein. The spheres are mixed with the elastomeric material prior to molding. The resulting composition is injection molded in the shape of a heel and sole directly on the bottom of a shoe upper to form a lightweight, relatively inexpensive and wearresistant shoe bottom.
- the present invention relates to shoe soles and heels and more specifically, to a shoe sole and heel molded of an elastomeric material including a filler of hollow glass spheres.
- Shoe sole material molded entirely of an elastomeric material such as polyvinyl chloride (PVC) is relatively expensive due to the cost of the material, as well as being heavy, due to the density of the PVC employed. Additionally, a sole and heel made of a pure elastomeric material does not have wear-resistant properties as good as composition sole and heel materials.
- PVC polyvinyl chloride
- Shoe soles and heels have been molded of an elastomeric material having uniform gas bubbles dispersed within the material to reduce the cost of the material as well as reducing the weight of the shoe.
- the matrices formed with the gas bubbles within the sole material are primarily for the purpose of increasing the elasticity of the shoe bottoms and do not increase the wear-resistance of the material. The wearresistance of the shoe sole and heel so formed is actually reduced; U. S. Pat. Nos. 3,005,272, Shelare, et al., issued on Oct. 24, 1961 and 3,552,039, Fukuoka, issued on Jan 5, 1971, describe shoe soles and heels so formed.
- the shoe sole and heel material of the present invention employs a filler of hollow glass. spheres mixed within an elastomeric material such that the spheres remain intact to provide rigidity to the shoe sole material as well as wear-resistance at the surface of the material.
- the integrally molded shoe sole and heel so formed can be molded directly to a shoe bottom as by using an adhesive to insure the molded shoe sole and heel will adhere securely to the bottom of the shoe.
- FIG. 1 is a partially cut-away perspective view of a shoe having a sole and heel embodying the present invention.
- FIG. 2 is a block diagram of the process employed to manufacture the shoe sole and heel material shown in FIG. 1.
- FIG. 1 there is shown a shoe 10 having an upper portion 12 made of a leather material such as pigskin. Edges l3 and 15 of the upper material are inwardly turned around an innersole 16 and cemented to the innersole during the manufacturing process.
- the sole 20 and heel 22 can be integrally molded as shown in FIG. 1 or can be separately molded and attached to the shoe 10.
- the shoe 10 may include only a sole portion 20 made according tothe present invention and use a conventional rubber or composition heel 22 which is later attached to the shoe 10.
- the shoe sole and heel 20, 22 embodying the present invention can be employed with a variety of shoes and boots having designs different than that illustrated in FIG. 1.
- FIG. 2 The manufacture of the sole and heel 20, 22 is illustrated by the block diagram of FIG. 2 which shows that a source 26 of liquid elastomeric material (FIG. 1) such as PVC supplies the liquified elastomeric material to a mixing stage 28 which includes a suitable mixing vessel.
- the mixing stage 28 is also supplied with hollow glass spheres 30 (FIG. 1) from a source 32 of such glass spheres.
- These spheres can range in diameter from 25-l00 micrometers and are commercially available from the Minnesota Mining and Manufacturing Company. Spheres of micrometer diameter were used in the preferred embodiment.
- the mixing stage 28 combines the glass spheres 30 with the PVC binder 25 in a mixture of 15-20 percent spheres to -80 percent PVC by volume.
- the volumetric ratio of spheres to binder can vary somewhat although the range of 15-20 percent provided the best results.
- a uniform mixture is achieved by well known processes as exemplified in U. S. Pat. No. 3 ,046,172.referred'to above.
- the mixture is fed to an injection molding apparatus 40 having a plurality of molds (not shown) shaped in the form of the sole and heel 20, 22 illustrated in FIG. 1.
- the molds are mounted adjacent the innersole 16 of the shoe 10 such that the molded shoe sole 20 and heel 22 can be directly bonded to the bottom of the shoe 10.
- a neoprene binder, applied to the outer edges 13 and 15 of the upper material 12 prior to the application of the sole and heel insures adhesion. It is possible, of course, to mold the integral shoe sole and heel 20 and 22 and later cement it to the bottom of the shoe 10. Likewise, it is equally possible to mold the sole and heels separately for later adhesion to the shoe bottom.
- elastomeric materials which can be liquified for mixing the sphers within the material can be used as the shoe sole and heel material.
- elastomeric materials include styrene-butadiene rubber (SBR), polyurethane, and. other well known materials.
- a shoe sole molded of an elastomeric material having a rigid filler material comprising intact hollow spheres dispersed uniformly therein, said spheres being of lesser density than said elastomeric material and forming approximately 15-20 percent by volume of the sole.
- a shoe sole molded of an elastomeric material, the improvement comprising a rigid filler of uniformly dispersed hollow spheres within said elastomeric sole material and comprising 15-20 percent of the total volume of said shoe sole.
- a shoe having an innersole with a bottom attached thereto, said bottom comprising a heel and sole integrally molded from an elastomeric material and including a plurality of hollow glass spheres uniformly dispersed therein, said sphers having a diameter of from 25 to micrometers and comprising 15 to 20 percent by volume of said bottom.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)
Abstract
A shoe sole and heel integrally molded of an elastomeric material having a filler of hollow glass spheres dispersed therein. The spheres are mixed with the elastomeric material prior to molding. The resulting composition is injection molded in the shape of a heel and sole directly on the bottom of a shoe upper to form a lightweight, relatively inexpensive and wearresistant shoe bottom.
Description
nited States Patent [191 Egtvedt [4 1 Feb. 12, 1974 SHOE soLE AND HEEL [75] Inventor: Robert B. Egtvedt, Comstock Park,
Mich.
[73] Assignee: Wolverine World Wide, lnc.,
Rachford, Mich.
221 Filed: Jan. 19, 1972 21 Appl. No.: 219,031
[52] US. Cl. 36/28, 36/32 R [51] Int. Cl A431) 13/18 [58] Field of Search 36/28, 32 R [56] References Cited UNITED STATES PATENTS 2,766,800 10/1956 Rockoff 36/32 R UX 2,374,487 4/1945 Jayne 36/32 R 2,651,118 9/1953 Root 36/32 R 2,757,461 8/1956 Cartmell 36/59 C X 3,046,172 7/1962 Reid 161/160 [1X 3,219,600 11/1965 Rucker 161/D1G. 5 3,515,625 6/1970 Sedlak et al. l6l/D1G. 5 3,596,381 8/1971 Fukuoka 36/32 R X Primary Examiner-Alfred R. Guest Attorney, Agent, or Firm--Price, Heneveld, Huizenga & Cooper [5 7] ABSTRACT A shoe sole and heel integrally molded of an elastomeric material having a filler of hollow glass spheres dispersed therein. The spheres are mixed with the elastomeric material prior to molding. The resulting composition is injection molded in the shape of a heel and sole directly on the bottom of a shoe upper to form a lightweight, relatively inexpensive and wearresistant shoe bottom.
9 Claims, 2 Drawing Figures Patented Feb. 12, 1974 SOURCE or HOLLOW SPHERES 52 2 I I 2 SOURCE OF MIXING INJECTION LIQUID STAGE MOLDING ELASTOMERIC APARATUS MAT'L 1 SHOE SOLE AND HEEL BACKGROUND OF THE INVENTION The present invention relates to shoe soles and heels and more specifically, to a shoe sole and heel molded of an elastomeric material including a filler of hollow glass spheres.
Shoe sole material molded entirely of an elastomeric material such as polyvinyl chloride (PVC) is relatively expensive due to the cost of the material, as well as being heavy, due to the density of the PVC employed. Additionally, a sole and heel made of a pure elastomeric material does not have wear-resistant properties as good as composition sole and heel materials.
Shoe soles and heels have been molded of an elastomeric material having uniform gas bubbles dispersed within the material to reduce the cost of the material as well as reducing the weight of the shoe. The matrices formed with the gas bubbles within the sole material, however, are primarily for the purpose of increasing the elasticity of the shoe bottoms and do not increase the wear-resistance of the material. The wearresistance of the shoe sole and heel so formed is actually reduced; U. S. Pat. Nos. 3,005,272, Shelare, et al., issued on Oct. 24, 1961 and 3,552,039, Fukuoka, issued on Jan 5, 1971, describe shoe soles and heels so formed.
U. S. Pat. No. 3,046,172, J. S. Reid, issued on July 24, 1962, suggests the use of hollow clay spheres within an elastomeric material for the manufacture of the shoe sole material. This patent, however, teaches the step of crushing the spheres after the molding process to form gas voids directly within the shoe sole material thereby increasing its elasticity. Such a process is directed primarily to forming an elastic, compressible material and not a process or material for increasing the wearresistance properties of the shoe material. The process of the patent eliminates the difficulties of dispersing small gas bubbles within the binding material to achieve the same purpose as described in the Shelare, et al., and Fukuoka patents, supra.
SUMMARY OF THE INVENTION The shoe sole and heel material of the present invention, employs a filler of hollow glass. spheres mixed within an elastomeric material such that the spheres remain intact to provide rigidity to the shoe sole material as well as wear-resistance at the surface of the material. The integrally molded shoe sole and heel so formed can be molded directly to a shoe bottom as by using an adhesive to insure the molded shoe sole and heel will adhere securely to the bottom of the shoe.
It is an object of the present invention to provide shoe sole and heel material which is lightweight, relatively inexpensive, and wear-resistant.
It is an additional object of the present invention to provide a shoe sole material having a filler of hollow spheres that can be molded directly to a bottom of a shoe during the manufacturing of the shoe.
It is still an additional object of the present invention to provide an improved shoe sole and heel material comprising an elastomeric material having uniformly dispersed hollow glass spheres within the material to reduce the weight of the shoe sole and heel material as well as increasing the wear-resistant properties of the resulting shoe sole and heel so formed.
BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a partially cut-away perspective view of a shoe having a sole and heel embodying the present invention; and
FIG. 2 is a block diagram of the process employed to manufacture the shoe sole and heel material shown in FIG. 1.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT Referring now in detail to FIG. 1 there is shown a shoe 10 having an upper portion 12 made of a leather material such as pigskin. Edges l3 and 15 of the upper material are inwardly turned around an innersole 16 and cemented to the innersole during the manufacturing process.
Attached to the bottom of the innersole 16 is an integrally formed shoe sole 20 and heel 22. The sole 20 and heel 22 can be integrally molded as shown in FIG. 1 or can be separately molded and attached to the shoe 10.
Also the shoe 10 may include only a sole portion 20 made according tothe present invention and use a conventional rubber or composition heel 22 which is later attached to the shoe 10. Also, the shoe sole and heel 20, 22 embodying the present invention can be employed with a variety of shoes and boots having designs different than that illustrated in FIG. 1.
The manufacture of the sole and heel 20, 22 is illustrated by the block diagram of FIG. 2 which shows that a source 26 of liquid elastomeric material (FIG. 1) such as PVC supplies the liquified elastomeric material to a mixing stage 28 which includes a suitable mixing vessel. The mixing stage 28 is also supplied with hollow glass spheres 30 (FIG. 1) from a source 32 of such glass spheres. These spheres can range in diameter from 25-l00 micrometers and are commercially available from the Minnesota Mining and Manufacturing Company. Spheres of micrometer diameter were used in the preferred embodiment.
The mixing stage 28 combines the glass spheres 30 with the PVC binder 25 in a mixture of 15-20 percent spheres to -80 percent PVC by volume. The volumetric ratio of spheres to binder can vary somewhat although the range of 15-20 percent provided the best results. A uniform mixture is achieved by well known processes as exemplified in U. S. Pat. No. 3 ,046,172.referred'to above. After mixing the liquified PVC and glass spheres, the mixture is fed to an injection molding apparatus 40 having a plurality of molds (not shown) shaped in the form of the sole and heel 20, 22 illustrated in FIG. 1. The molds are mounted adjacent the innersole 16 of the shoe 10 such that the molded shoe sole 20 and heel 22 can be directly bonded to the bottom of the shoe 10. A neoprene binder, applied to the outer edges 13 and 15 of the upper material 12 prior to the application of the sole and heel insures adhesion. It is possible, of course, to mold the integral shoe sole and heel 20 and 22 and later cement it to the bottom of the shoe 10. Likewise, it is equally possible to mold the sole and heels separately for later adhesion to the shoe bottom.
Various elastomeric materials which can be liquified for mixing the sphers within the material can be used as the shoe sole and heel material. Such elastomeric materials include styrene-butadiene rubber (SBR), polyurethane, and. other well known materials. Al-
though glass spheres have been successfully employed in the preferred embodiment, spheres of materials such as ceramic, epoxy, polyester resin, or Saran" can likewise be successfully employed. It is important, however, that the spheres remain intact such that the shoe sole material maintains its rigidity and wear-resistant properties.
Other variations of the present invention falling within the scope of the present invention as defined by the appended claims will become apparent to those skilled in the art.
The embodiments of the invention in which an exclusive property or privilege is claimed are defined as follows.
1. A shoe sole molded of an elastomeric material having a rigid filler material comprising intact hollow spheres dispersed uniformly therein, said spheres being of lesser density than said elastomeric material and forming approximately 15-20 percent by volume of the sole.
2. The shoe sole as defined in claim 1 wherein said spheres comprise hollow glass spheres having a diameter of from 25 to 100 micrometers.
3. The shoe sole as defined in claim 1 wherein said elastomeric material is polyvinyl chloride.
4. The shoe sole as defined in claim 1 and further including an integrally molded heel.
5. In a shoe sole molded of an elastomeric material, the improvement comprising a rigid filler of uniformly dispersed hollow spheres within said elastomeric sole material and comprising 15-20 percent of the total volume of said shoe sole.
6. The shoe sole as defined in claim 5 wherein said filler comprises 15 to 20 percent of the total volume of said shoe sole.
7. A shoe having an innersole with a bottom attached thereto, said bottom comprising a heel and sole integrally molded from an elastomeric material and including a plurality of hollow glass spheres uniformly dispersed therein, said sphers having a diameter of from 25 to micrometers and comprising 15 to 20 percent by volume of said bottom.
8. The shoe as defined in claim 7 wherein said elastomeric material comprises PVC.
9. The shoe as defined in claim 8 wherein said bottom is molded directly to said innersole of said shoe.
Claims (9)
1. A shoe sole molded of an elastomeric material having a rigid filler material comprising intact hollow spheres dispersed uniformly therein, said spheres being of lesser density than said elastomeric material and forming approximately 15-20 percent by volume of the sole.
2. The shoe sole as defined in claim 1 wherein said spheres comprise hollow glass spheres having a diameter of from 25 to 100 micrometers.
3. The shoe sole as defined in claim 1 wherein said elastomeric material is polyvinyl chloride.
4. The shoe sole as defined in claim 1 and further including an integrally molded heel.
5. In a shoe sole molded of an elastomeric material, the improvement comprising a rigid filler of uniformly dispersed hollow spheres within said elastomeric sole material and comprising 15-20 percent of the total volume of said shoe sole.
6. The shoe sole as defined in claim 5 wherein said filler comprises 15 to 20 percent of the total volume of said shoe sole.
7. A shoe having an innersole with a bottom attached thereto, said bottom comprising a heel and sole integrally molded from an elastomeric material and including a plurality of hollow glass spheres uniformly dispersed therein, said sphers having a diameter of from 25 to 100 micrometers and comprising 15 to 20 percent by volume of said bottom.
8. The shoe as defined in claim 7 wherein said elastomeric material comprises PVC.
9. The shoe as defined in claim 8 wherein said bottom is molded directly to said innersole of said shoe.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US21908172A | 1972-01-19 | 1972-01-19 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US3791050A true US3791050A (en) | 1974-02-12 |
Family
ID=22817790
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US00219081A Expired - Lifetime US3791050A (en) | 1972-01-19 | 1972-01-19 | Shoe sole and heel |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US3791050A (en) |
Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3918182A (en) * | 1972-03-20 | 1975-11-11 | Terrell Corp | Shoe reinforcing method and material |
| EP0094375A1 (en) * | 1982-05-06 | 1983-11-16 | Secans Ag | Method and mould for the manufacture of elastic shoe soles |
| EP0101676A1 (en) * | 1982-08-27 | 1984-02-29 | J. H. Benecke AG | Shoe insole and method of making the same |
| EP0320709A1 (en) * | 1987-12-14 | 1989-06-21 | Stichlmair, Johann, Prof.Dr. | Process and apparatus for separating materials by electrophoresis |
| EP0369801A2 (en) * | 1988-11-17 | 1990-05-23 | Colgate-Palmolive Company | Composite sheet material |
| EP0369800A2 (en) * | 1988-11-17 | 1990-05-23 | Colgate-Palmolive Company | Composite sheet |
| US4972611A (en) * | 1988-08-15 | 1990-11-27 | Ryka, Inc. | Shoe construction with resilient, absorption and visual components based on spherical pocket inclusions |
| US5733647A (en) * | 1992-11-05 | 1998-03-31 | Polymer Innovations, Inc. | Insole |
| US20050137514A1 (en) * | 2001-08-27 | 2005-06-23 | Vito Robert A. | Vibration dampening material and method of making same |
| US20050137038A1 (en) * | 2001-08-27 | 2005-06-23 | Vito Robert A. | Vibration dampening material and method of making same |
| US20090035543A1 (en) * | 2001-08-27 | 2009-02-05 | Vito Robert A | Vibration dampening material and method of making same |
| US20090179361A1 (en) * | 2001-08-27 | 2009-07-16 | Vito Robert A | Vibration dampening material and method of making same |
| US20100247856A1 (en) * | 2001-08-27 | 2010-09-30 | Vito Robert A | Vibration dampening material and method of making same |
| US8413262B2 (en) | 2004-05-28 | 2013-04-09 | Matscitechno Licensing Company | Sound dissipating material |
| US8545966B2 (en) | 2001-08-27 | 2013-10-01 | Matscitechno Licensing Company | Vibration dampening material and uses for same |
| US9931803B2 (en) * | 2015-03-12 | 2018-04-03 | Nike, Inc. | Method of manufacturing sole assembly with camouflage appearance |
| USD922299S1 (en) * | 2019-06-05 | 2021-06-15 | Michael Welsh | Tie down device |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2374487A (en) * | 1939-07-15 | 1945-04-24 | Dominick Calderazzo | Outer sole for shoes |
| US2651118A (en) * | 1948-10-27 | 1953-09-08 | United Shoe Machinery Corp | Molding soles and heels to uppers |
| US2757461A (en) * | 1954-07-30 | 1956-08-07 | Us Rubber Co | Floatable slip-resistant shoe |
| US2766800A (en) * | 1953-01-05 | 1956-10-16 | Dayton Rubber Company | Non-skid rubber product |
| US3046172A (en) * | 1959-03-26 | 1962-07-24 | Standard Products Co | Spongy elastomeric materials and methods and products used in the manufacture of the same |
| US3219600A (en) * | 1963-12-18 | 1965-11-23 | Johns Manville | Method of producing closed cell sponge rubber |
| US3515625A (en) * | 1965-04-20 | 1970-06-02 | Steve Sedlak | Composite flexible material containing a high proportion of filler particles |
| US3596381A (en) * | 1968-11-22 | 1971-08-03 | Tatsuo Fukuoka | Sandal |
-
1972
- 1972-01-19 US US00219081A patent/US3791050A/en not_active Expired - Lifetime
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2374487A (en) * | 1939-07-15 | 1945-04-24 | Dominick Calderazzo | Outer sole for shoes |
| US2651118A (en) * | 1948-10-27 | 1953-09-08 | United Shoe Machinery Corp | Molding soles and heels to uppers |
| US2766800A (en) * | 1953-01-05 | 1956-10-16 | Dayton Rubber Company | Non-skid rubber product |
| US2757461A (en) * | 1954-07-30 | 1956-08-07 | Us Rubber Co | Floatable slip-resistant shoe |
| US3046172A (en) * | 1959-03-26 | 1962-07-24 | Standard Products Co | Spongy elastomeric materials and methods and products used in the manufacture of the same |
| US3219600A (en) * | 1963-12-18 | 1965-11-23 | Johns Manville | Method of producing closed cell sponge rubber |
| US3515625A (en) * | 1965-04-20 | 1970-06-02 | Steve Sedlak | Composite flexible material containing a high proportion of filler particles |
| US3596381A (en) * | 1968-11-22 | 1971-08-03 | Tatsuo Fukuoka | Sandal |
Cited By (26)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3918182A (en) * | 1972-03-20 | 1975-11-11 | Terrell Corp | Shoe reinforcing method and material |
| EP0094375A1 (en) * | 1982-05-06 | 1983-11-16 | Secans Ag | Method and mould for the manufacture of elastic shoe soles |
| EP0101676A1 (en) * | 1982-08-27 | 1984-02-29 | J. H. Benecke AG | Shoe insole and method of making the same |
| US4524529A (en) * | 1982-08-27 | 1985-06-25 | Helmut Schaefer | Insole for shoes |
| US4575446A (en) * | 1982-08-27 | 1986-03-11 | Helmut Schaefer | Process for producing an insole for shoes |
| EP0320709A1 (en) * | 1987-12-14 | 1989-06-21 | Stichlmair, Johann, Prof.Dr. | Process and apparatus for separating materials by electrophoresis |
| US4972611A (en) * | 1988-08-15 | 1990-11-27 | Ryka, Inc. | Shoe construction with resilient, absorption and visual components based on spherical pocket inclusions |
| GR890100756A (en) * | 1988-11-17 | 1991-12-30 | Colgate Palmolive Co | Composite sheet material |
| EP0369800A2 (en) * | 1988-11-17 | 1990-05-23 | Colgate-Palmolive Company | Composite sheet |
| GR890100757A (en) * | 1988-11-17 | 1990-12-31 | Colgate Palmolive Co | Sheet material |
| EP0369801A3 (en) * | 1988-11-17 | 1991-12-11 | Colgate-Palmolive Company | Composite sheet material |
| EP0369800A3 (en) * | 1988-11-17 | 1991-12-11 | Colgate-Palmolive Company | Composite sheet |
| EP0369801A2 (en) * | 1988-11-17 | 1990-05-23 | Colgate-Palmolive Company | Composite sheet material |
| US5733647A (en) * | 1992-11-05 | 1998-03-31 | Polymer Innovations, Inc. | Insole |
| US20090035543A1 (en) * | 2001-08-27 | 2009-02-05 | Vito Robert A | Vibration dampening material and method of making same |
| US20050137038A1 (en) * | 2001-08-27 | 2005-06-23 | Vito Robert A. | Vibration dampening material and method of making same |
| US20050137514A1 (en) * | 2001-08-27 | 2005-06-23 | Vito Robert A. | Vibration dampening material and method of making same |
| US20090179361A1 (en) * | 2001-08-27 | 2009-07-16 | Vito Robert A | Vibration dampening material and method of making same |
| US20100247856A1 (en) * | 2001-08-27 | 2010-09-30 | Vito Robert A | Vibration dampening material and method of making same |
| US8142382B2 (en) | 2001-08-27 | 2012-03-27 | Matscitechno Licensing Company | Vibration dampening material and method of making same |
| US8297601B2 (en) | 2001-08-27 | 2012-10-30 | Matscitechno Licensing Company | Vibration dampening material and method of making same |
| US8545966B2 (en) | 2001-08-27 | 2013-10-01 | Matscitechno Licensing Company | Vibration dampening material and uses for same |
| US9265999B2 (en) | 2001-08-27 | 2016-02-23 | Matscitechno Licensing Company | Vibration dampening material and method of making same |
| US8413262B2 (en) | 2004-05-28 | 2013-04-09 | Matscitechno Licensing Company | Sound dissipating material |
| US9931803B2 (en) * | 2015-03-12 | 2018-04-03 | Nike, Inc. | Method of manufacturing sole assembly with camouflage appearance |
| USD922299S1 (en) * | 2019-06-05 | 2021-06-15 | Michael Welsh | Tie down device |
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