United States Patent (19) 11 Patent Number: 5,829,057 Gunn (45) Date of Patent: *Nov

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United States Patent (19) 11 Patent Number: 5,829,057 Gunn (45) Date of Patent: *Nov USOO5829057A United States Patent (19) 11 Patent Number: 5,829,057 Gunn (45) Date of Patent: *Nov. 3, 1998 54) LOW FRICTION OUTER APPAREL 5,123,113 6/1992 Smith. 5,154,682 10/1992 Kellerman. 75 Inventor: Robert T. Gunn, 360 E. 65th St. Apt. 5,260,360 11/1993 Mrozinski et al.. 11E, New York, N.Y. 10O21 5,271,211 12/1993 Newman. s s 5,323,815 6/1994 Barbeau et al. .............................. 2/81 73 Assignee:rr. A Robert T. Gunn, New York, N.Y. 5,385,6945,376,441 12/19941/1995 Wu et al.. * Notice: The term of this patent shall not extend 5,575,012 11/1996 Fox et al.. beyond the expiration date of Pat. No. FOREIGN PATENT DOCUMENTS 5,590,420. 2007 860 9/1971 Germany. 28 20 793 11/1979 Germany. 21 Appl. No.: 389,759 35 34 401 A1 4/1987 Germany. 22 Filed: Feb. 14, 1995 55 06 22 O1 5/1980 Japan Related U.S. Application Data OTHER PUBLICATIONS K. Herring and D. Richie, Journal of the American Podiatric 63 Continuation-in-part of Ser. No. 217,490, Mar. 24, 1994, Medical Association, “Friction Blisters and Sock Fiber Pat. No. 5,590,420. Composition”, vol. 80/No. 2, Feb. 1990 pp. 63–71. (51) Int. Cl. ............................................... A41D 13/00 K. Herring and D. Richie, Journal of the American Podiatric 52 U.S. Cl. ............................... 2/69; 2/239; 2/67; 2/159; Medical Association, “Comparison of Cotton and Acrylic 2/227; 2/115; 2/243.1 Socks. Using a Generic Cushion Sole Design for Runners”, 58 Field of Search ............................... 2/239, 69,243.1, vol. 83/No. 9, Sep. 1993 pp. 515-522. 2/904, 902, 168, 158, 1617, 161.1, 167, “DuPont PTFE 30 flouropolymer resin" (facsimile) pp. 2–5. 46, 48, 51, 50, 81, 83, 114, 22, 16; 36/138, International Search Report for International Application 43, 44, 35, 72 R No. PCT/US95/03218 56) References Cited Primary Examiner-Gloria Hale Attorney, Agent, or Firm-Curtis, Morris & Safford, P.C. U.S. PATENT DOCUMENTS 57 ABSTRACT 3,328,100 6/1967 Spokes et al.. 3.590,881 7/1971 Van Amburg. The present invention is an article, namely apparel, Such as 3,749,138 7/1973 Rheaume et al.. clothing, footwear, fabrics, and the like, which incorporates 3,844,826 10/1974 Buchner et al.. 4,074,512 2/1978 Matt. fabrics or chemicals having a low coefficient of friction 4,152,784 5/1979 McGalliard. either overall or in Specific areas of the apparel that will 4,153,980 5/1979 Moertel. minimize the development of blisters, callouses, and irrita 4,195,362 4/1980 Rolando . tion of the skin. The present invention also is an article Such 4,261,061 4/1981 McAlvage. as apparel which incorporates fabrics or chemicals having a 4,296.499 10/1981 Patterson et al.. low coefficient of friction either overall or in Specific areas 4.550,446 11/1985 Herman. of the outer Surface of the apparel that will minimize 4,572,174 2/1986 Eilender et al.. frictional contact with external objects. The invention also 4,805.240 2/1989 Siqveland. includes methods for producing this low friction apparel and 4,843,844 7/1989 Hursh et al.. 4,864,669 9/1989 Jones. apparel with a low friction outer Surface. 4,922,551 5/1990 Anthes. 4,967,494 11/1990 Johnson. 64 Claims, 7 Drawing Sheets U.S. Patent Nov. 3, 1998 Sheet 1 of 7 5,829,057 U.S. Patent Nov. 3, 1998 Sheet 2 of 7 5,829,057 A/G.2 U.S. Patent Nov. 3, 1998 Sheet 3 of 7 5,829,057 U.S. Patent Nov. 3, 1998 Sheet 4 of 7 5,829,057 U.S. Patent Nov. 3, 1998 Sheet 5 of 7 5,829,057 5,829,057 1 2 LOW FRCTION OUTER APPAREL Another Situation where frictional contact can be very undesirable, is in body contact Sports. In Sports which RELATED APPLICATIONS require a player to grip or tackle an opposing player, it would This application is a continuation-in-part of U.S. patent be advantageous to the opposing player to wear apparel application Ser. No. 08/217,490 filed Mar. 24, 1994, and which is difficult to grip. Additionally, in Sports where issued as U.S. Pat. No. 5,590,420 on Jan. 7, 1997 incorpo players (either opposing players or team members) make rated herein by reference. bodily contact, it would be advantageous to minimize the effect of pushing and jostling of contact (i.e. bumping, BACKGROUND OF INVENTION pushing, etc.) during play. This invention relates to low friction apparel and methods for producing Same, wherein apparel is defined as clothing, Another Situation where frictional contact can be very footwear, fabrics, and the like. More particularly, the inven undesirable, is in high Speed Sports and Sports where the tion relates to low friction apparel which incorporates fab difference between winning and losing is determined in rics or chemicals having a low coefficient of friction either fractions of a Second. In these Sports, any Speed or momen overall or in Specific areas of the apparel that will minimize tum lost to friction can mean the difference between winning the development of blisters, callouses, and irritation of an 15 and losing. apparel wearer's body Surface. The invention also includes It would be highly desirable to have apparel which has an methods for producing the low friction apparel and methods overall low coefficient of friction or which has material for using a low friction material to reduce the coefficient of having a low coefficient of friction in areas of high body friction of a finished article of apparel or the like to reduce Surface/apparel contact Such that irritations, blisters, and irritation. callouses are avoided or minimized. This invention further relates to apparel with a low It would also be highly desirable to have apparel which friction Outer Surface and methods for producing Same. More has an overall low coefficient of friction or which has particularly, the invention relates to apparel with a low material having a low coefficient of friction in areas of high friction outer Surface which incorporates fabrics or chemi 25 apparel outer Surface/external object contact Such that fric cals having a low coefficient of friction either overall or in tional contact is minimized. Specific areas of the outer Surface of the apparel, Such that a low friction surface will be presented on the exterior SUMMARY OF THE INVENTION Surface of the apparel. The invention also includes methods It is a principle object of the invention to provide low for producing the apparel with a low friction outer Surface friction apparel which avoids or minimizes the development and methods for using a low friction material to reduce the of irritations, blisters, and callouses. coefficient of friction of the exterior of a finished article of A further object of the invention is to provide a method for apparel or the like. producing low friction apparel by chemically treating the Apparel is made out of many materials, natural and fibers or yarn or the like of the material from which the man-made. They include cotton, wool, Silk, linen, leather, 35 apparel is made prior to or after producing the material. Vinyl, nylon - polyamides and polyamide co-polymers, Another object of the invention is to provide a method for LYCRA SPANDEXTM in different filament configurations, producing low friction apparel by incorporating low friction orlon polyvinylidene fluoride, such as KYNARTM, polyester, yarns, fibers or material into the fabric from which the for example, polyethylene terepthalate, glycol modified apparel is made. polyesters, such as PETG, KODURATM, rayon, orlon cel 40 Still another object of the invention is to provide a method lulosic fiber blends, and the like, as well as blends of the for producing low friction apparel by applying chemicals to above. impart a low friction coefficient directly to the fabric or Of course, apparel, either directly or indirectly, contacts apparel either overall or in areas of high body Surface/ the body surface of the wearer. The movement of the wearer apparel contact. causes frictional contact between the wearer's body Surface 45 It is yet another principle object of the invention to and the apparel. This frictional contact can cause irritation, provide apparel which has a low friction outer Surface. blisters, and callouses. This frictional contact is particularly Still a further object of the invention is to provide a a problem in Sporting apparel wherein the formation of method for producing apparel with a low friction outer irritations, blisters, and callouses is exacerbated by the rapid Surface by chemically treating the fibers or yarn or the like and/or repetitious body movements related to the particular 50 activity. Additionally, it is noted that most apparel has of the material from which the apparel is made prior to or Specific areas of high body Surface/apparel contact which after producing the material. produces a majority of the irritations, blisters, and callouses. Another object of the invention is to provide a method for Furthermore, the outer Surface of apparel contacts exter producing apparel with a low friction outer Surface by nal objects and Surfaces Such as walls, floors, furniture, and 55 incorporating low friction yarns, fibers or material into the other pieces of apparel (worn by others or by the wearer). fabric from which the apparel is made. The movement of the wearer causes frictional contact Yet another object of the invention is to provide a method between the wearer's apparel and the external objects and for producing apparel with a low friction outer Surface by Surfaces.
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