Cold weather footwear
First Claim
1. Cold weather footwear comprising:
- an outer boot;
a preformed sock disposed in said boot and formed of a material enabling transmission of moisture vapor therethrough; and
an insole disposed between said sock and said boot, said insole comprised of a first portion formed to provide a barrier to the transmission of moisture vapor and a second portion formed of a moisture retaining non-adsorbent open matrix mesh material overlying said first portion and lying between the latter and said sock, said first portion being formed of a material affording thermal insulation and having an inability to retain, and trap or adsorb moisture and said second portion being formed of a material having the capacity to entrap moisture in its interstices substantially most of which, when frozen, may be released by mechanical action.
14 Assignments
0 Petitions
Accused Products
Abstract
Cold weather footwear includes at least three assemblies: an inner preformed sock comprised of inner and outer fabric layers and an intermediate open cell polyurethane foam layer enabling moisture transmission through the preformed sock; an insole assembly including a first layer formed of a moisture retaining or accumulating fabic, separable foam and intermediate sheet plastic non-moisture permeable plastic, and an underlying layer of closed cell thermally insulating foam for disposition between the inner sock and the sole of the boot; and a boot having a sole and a shell formed integrally with the boot, the shell being backcoated with a plastic material and coated with a water repellent. The footwear has adequate thermal insulation and moisture vapor transport characteristics, while affording good wind resistance and water repellency.
107 Citations
43 Claims
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1. Cold weather footwear comprising:
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an outer boot; a preformed sock disposed in said boot and formed of a material enabling transmission of moisture vapor therethrough; and an insole disposed between said sock and said boot, said insole comprised of a first portion formed to provide a barrier to the transmission of moisture vapor and a second portion formed of a moisture retaining non-adsorbent open matrix mesh material overlying said first portion and lying between the latter and said sock, said first portion being formed of a material affording thermal insulation and having an inability to retain, and trap or adsorb moisture and said second portion being formed of a material having the capacity to entrap moisture in its interstices substantially most of which, when frozen, may be released by mechanical action. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. Cold weather footwear comprising:
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an outer boot; a preformed sock disposed in said boot and formed of an open cell material enabling transmission of moisture vapor therethrough; said sock including an intermediate layer having opposite side and bottom portions for encompassing and generally conforming to the shape of an individual'"'"'s foot and ankle, an inner lining formed of a material enabling transmission of moisture vapor therethrough and substantially conformal to the shape of the inner surface of said intermediate layer, and an outer layer formed of a material enabling transmission of moisture vapor therethrough and substantially conformal to the shape of the outer surface of said intermediate layer; and an insole disposed between said sock and said boot, said insole comprised of a first portion formed to provide a barrier to the transmission of moisture vapor and a second portion formed of a moisture retaining material overlying said said first portion and lying between the latter and said sock. - View Dependent Claims (10, 11, 12, 13, 14, 15)
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16. Cold weather footwear comprising:
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an outer boot including an outer sheel formed of a fabric material, a sole formed of a one piece plastic material, and means connecting said shell and said sole one to the other with said shell disposed on top of said sole to encompass at least an individual'"'"'s ankle, said shell being coated on one side with a plastic material enabling transmission of moisture vapor therethrough; a preformed sock disposed in said boot and formed of a material enabling transmission of moisture vapor therethrough; and an insole disposed between said sock and said boot, said insole comprised of a first portion formed to provide a barrier to the transmission of moisture vapor and a second portion formed of a moisture retaining material overlying said first portion and lying between the latter and said sock. - View Dependent Claims (17, 18, 19, 20)
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21. Cold weather footwear comprising:
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an outer boot; a preformed sock disposed in said boot and formed of an open cell material enabling transmission of moisture vapor therethrough; said sock including an intermediate layer having opposite side and bottom portions for encompassing and generally conforming to the shape of an individual'"'"'s foot and ankle, an inner lining formed of a material enabling transmission of moisture vapor therethrough and substantially conformal to the shape of the inner surface of said intermediate layer, and an outer layer formed of a material enabling transmission of moisture vapor therethrough and substantially conforming to the outer surface of said intermediate layer; an insole disposed between said sock and said boot, said insole comprised of a first portion formed to provide a barrier to the transmission of moisture vapor and a second portion formed of a moisture retaining material overlying said first portion and lying between the latter; and said boot including an outer shell formed of a fabric material, a sole formed of a one piece plastic material, and means connecting said shell and said sole one to the other with said shell disposed on top of said sole to encompass at least an individual'"'"'s ankle, said shell being coated on one side with a plastic material enabling transmission of moisture vapor therethrough. - View Dependent Claims (22)
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23. Cold weather footwear comprising:
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a boot having a sole; a sock disposed in said boot and formed of a material enabling transmission of moisture vapor; and an insole disposed betweensaid sock and said boot including a non-adsorbent open matrix mesh moisture retaining layer of material lying between said sock and said sole such that the moisture, upon freezing, may be released by mechanical action, said layer being removable from said footwear to enable said mechanical action to be applied to said insole. - View Dependent Claims (24, 25)
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26. Cold weather footwear comprising:
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a boot having a sole; a sock disposed in said boot and formed of an open cell material enabling transmission of moisture vapor; said sock including an intermediate layer having opposite side and bottom portions for encompassing and generally conforming to the shape of an individual'"'"'s foot and angle, an inner lining formed of a material enabling transmission of moisture vapor therethrough and substantially conformal to the shape of the inner surface of said intermediate layer, and an outer layer formed of a material enabling transmission of moisture vapor therethrough and substantially conformal to the shape of the outer surface of said intermediate layer; and an insole disposed between said sock and said boot including a moisture retaining layer of material lying between said sock and said sole, said layer being removable from said footwear. - View Dependent Claims (27, 28)
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29. A preformed sock for use with footwear comprising:
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an intermediate layer having opposite side and bottom portions for encompassing and generally conforming to the shape of an individual'"'"'s foot and ankle, said sock being formed of an open cell moisture vapor transmissive material; an inner lining formed of a material enabling transmission of moisture vapor therethrough and substantially conformal to the shape of the inner surface of said intermediate layer; and an outer layer formed of a material enabling transmission of moisture vapor therethrough and substantially conformal to the shape of the outer surface of said intermediate layer, the outer lining material having a moisture vapor transmission value of at least 1000 gms/m2 /24 hrs. - View Dependent Claims (30, 31, 32, 33, 34, 35)
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36. A preformed sock for use with footwear comprising:
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an intermediate layer having opposite side and bottom portions for encompassing and generally conforming to the shape of an individual'"'"'s foot and ankle, said sock being formed of an open cell material; an inner lining formed of a material enabling transmission of moisture vapor therethrough and substantially conformal to the shape of the inner surface of said intermediate layer; an outer layer formed of a material enabling transmission of moisture vapor therethrough and substantially conformal to the shape of the outer surface of said intermediate layer; each of said opposite side portions having front and rear edges and which edges engage the front and rear edges of the opposite side portion to form seams along the front and rear sides of the intermediate layer and means for securing the opposite side portions one to the other along said edges; and said inner lining having at least one tab projecting from one of the toe or heel portions thereof and extending into the corresponding front or rear seam and means for securing the tab to the intermediate layer.
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37. A preformed sock for use with footwear comprising:
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an intermediate layer having opposite side and bottom portions for encompassing and generally conforming to the shape of an individual'"'"'s foot and ankle, saidsock being formed of an open cell material; an inner lining formed of a material enabling transmission of moisture vapor therethrough and substantially conformal to the shape of the inner surface of said intermediate layer; an outer layer formed of a material enabling transmission of moisture vapor therethrough and substantially conformal to the shape of the outer surface of said intermediate layer; said intermediate layer being formed of discrete side portions and a bottom portion, said opposite side portions engaging one another along opposed edges thereof to form seams along the front and rear sides of the intermediate layer, said bottom portion forming a seam with lower edges of each of the discrete side portions; and means for securing the opposite side portions one to the other along said front and rear seams and said bottom to the lower edges of the side portions along said bottom seam. - View Dependent Claims (38)
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39. An outer shell and sole for footwear comprising:
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an outer shell formed of a fabric material; a sole formed of a one piece plastic material; means connecting said shell and said sole one to the other with said shell disposed on top of said sole to encompass at least an individual'"'"'s ankle, said shell being coated along its underside surface with a plastic material enabling transmission of moisture vapor therethrough, said plastic material coating said shell having a thickness which provides an air permeability value of smaller than 2 ft3 /ft2 /minute at a pressure of 0.5 inches of water. - View Dependent Claims (40, 41)
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42. An outer shell and sole for footwear comprising:
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an outer shell formed of a fabric material; a sole formed of a one piece plastic material; means connecting said shell and said sole one to the other with said shell disposed on top of said sole to encompass at least an individual'"'"'s ankle, said shell being coated on one side with a plastic material enabling transmission of moisture vapor therethrough; and at least one substantially flat substantially rigid bar connected to the sole and extending upwardly therefrom adjacent one of the inner or outer ankle areas to overlie a portion of said shell to afford vertical stability about the ankle area.
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43. An outer shell and sole for footwear comprising:
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an outer shell formed of a fabric material; a sole formed of a one piece plastic material; means connecting said shell and said sole one to the other with said shell disposed on top of said sole to encompass at least an individual'"'"'s ankle, said shell being coated on one side with a plastic material enabling transmission of moisture vapor therethrough; and a pair of generally flat substantially rigid bars connected to said sole at opposite sides thereof and extending upwardly adjacent said inner and outer ankle areas to overlie outside portions of said shell to afford vertical stability about the ankle areas.
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Specification