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 Title: |
US5402540:
Waterproof, breathable articles of apparel
[ Derwent Title ]
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| Country: |
US United States of America
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| Inventor: |
Williams, Cole; Glendale, CA 91208
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| Assignee: |
None
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| Published / Filed: |
1995-04-04
/ 1993-06-04
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| Application Number: |
US1993000072975
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| IPC Code: |
Advanced:
A41B 11/00;
A41B 17/00;
A41D 19/00;
A41D 31/02;
B32B 5/24;
B32B 7/12;
B32B 27/12;
IPC-7:
A41B 11/00;
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| ECLA Code: |
A41B11/00M; A41D19/00; A41D19/00C; A41D19/00D; A41D19/00P; A41D31/02; K41D300/52;
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| U.S. Class: |
Current:
002/239;
002/243.1;
012/142.G;
036/004;
036/009.R;
036/010;
156/212;
264/222;
Original:
002/239;
002/243.1;
036/004;
036/009.R;
036/010;
012/142.G;
156/212;
264/222;
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| Field of Search: |
002/239,409,87,243.1,159,158,161.7,167,164
156/212,213,306.6,308.2,309.6,322,292,290,148
264/222
036/004,9 R,10
012/142 G
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| Priority Number: |
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| Abstract: |
A footwear article and the method of making the same which will allow water vapor due to perspiration to transpire through the article but will prevent liquid water from external sources from reaching the wearer's foot. One form of the footwear article of the invention comprises a sock which is of three-ply construction with the inside and outside plies being knit and the intermediate ply being made from an elastomeric polyurethane film. The three plies are uniquely bonded together using a pliant, waterproof adhesive.
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| Attorney, Agent or Firm: |
Brunton, J. E. ;
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| Primary / Asst. Examiners: |
Crowder, Clifford D.; Hale, Glona
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| INPADOC Legal Status: |
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Family Legal Status Report
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| Parent Case: |
This is a Continuation-In-Part of copending application Ser. No. 07/959,115, filed Oct. 9, 1992.
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| Designated Country: |
AM AP AT BB BG BR BY CA CH CN CZ DE DK EE ES FI GB GE HU IS KE KG KP KR KZ LK LT LU LV MD MG MN MW MX FR IT LI
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| Family: |
Show 40 known family members
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First Claim:
Show all 19 claims |
I claim:
1. A method of making an article of apparel used to cover a wearer's extremities comprising the steps of:
- (a) constructing a waterproof, breathable, elastomeric bladder having the general shape of the wearer's extremity and including an extremity receiving portion comprising the steps of:
- (i) distributing an adhesive over the surfaces of first and second sheets of material, said sheets of material being of a character that will prevent penetration of liquid water while at the same time permitting free passage of moisture vapor such as that resulting from perspiration;
- (ii) placing said first sheet over said second sheet to form a coated assembly;
- (iii) heating said coated assembly along a boundary line generally corresponding to the shape of the wearer's extremity to a temperature sufficient to sealably bond said first and second sheets together along said boundary line; and
- (iv) removing from said coated assembly excess material located externally of said boundary line to form said elastomeric bladder;
- (b) placing a first fabric member having the general shape of the wearer's extremity over a thin generally planar mandrel having the general shape of the wearer's extremity;
- (c) wetting said bladder with water to form a wet, expanded bladder;
- (d) placing said wet, expanded bladder over said first fabric member to form a subassembly;
- (e) wetting with water a second fabric member having the general shape of the wearer's extremity;
- (f) placing said wet second fabric member over said subassembly to form a precursor article;
- (g) heating and compressing said precursor article in a manner to urge said first and second fabric members into engagement with said bladder to form a heated precursor article; and
- (h) cooling said precursor article and removing it from said mandrel.
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| Background / Summary: |
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| Drawing Descriptions: |
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| Description: |
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| Forward References: |
Show 14 U.S. patent(s) that reference this one
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