Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
156 words
An insole for footwear which comprises a multi-sheet laminate shaped to overlie the inner sole of footwear and composed of a bottom open cell resilient compressible plastics sheet with a smooth bottom skin for resting on the inner sole of the footwear, an intermediate pliable relatively incompressible plastics sheet having particles of an odor-absorbing chemical dispersed uniformly therethrough and locked therein, a top fabric sheet presenting a slippery abrasion resisting top surface for the foot of the wearer, said sheets being bonded together in unitary relation, and holes extending through all of the layers thereof exposing the chemical particles in the intermediate layer, said open cell resilient bottom layer being compressible under the foot load applied thereto to pump air from the cells through the holes in intimate contact with the chemical to absorb odors and moisture, and said holes being sufficiently large so as not to be closed during the compression of the bottom layer.
Claim 2
Dependent Claim
156 words
An insole for footwear which comprises a multi-sheet laminate shaped to overlie the inner sole of footwear and composed of a bottom open cell resilient compressible plastics sheet with a smooth bottom skin for resting on the inner sole of the footwear, an intermediate pliable relatively incompressible plastics sheet having particles of an odor-absorbing chemical dispersed uniformly therethrough and locked therein, a top fabric sheet presenting a slippery abrasion resisting top surface for the foot of the wearer, said sheets being bonded together in unitary relation, and holes extending through all of the layers thereof exposing the chemical particles in the intermediate layer, said open cell resilient bottom layer being compressible under the foot load applied thereto to pump air from the cells through the holes in intimate contact with the chemical to absorb odors and moisture, and said holes being sufficiently large so as not to be closed during the compression of the bottom layer.
Claim 3
Dependent Claim
192 words
A moisture and odor-absorbing cushion insole for footwear comprising a multi-sheet pliable laminate shaped to cover the inner sole of a shoe and to receive the foot or sock of the wearer of the shoe, said laminate having a relatively thick bottom open cell resilient foam compressible plastics material layer with a smooth nonporous bottom skin, an intermediate impervious relatively incompressible pliable plastics sheet layer having activated charcoal particles dispersed uniformly therethrough and anchored therein and a top fabric layer, said foam and intermediate layers being formed in situ on said top fabric layer and heat bonded together and to said top fabric layer in unitary relation, a myriad of small diameter holes extending perpendicularly through all of the layers, said activated charcoal particles being exposed to the peripheral walls of said holes and to the interfaces of the intermediate layer with the open cell and fabric layers to absorb moisture and odors in air passing through the holes as the open cell layer is alternately compressed and expanded to pump air from and into the cells under application and release of load from the foot of the wearer as in walking.
Claim 4
Dependent Claim
192 words
A moisture and odor-absorbing cushion insole for footwear comprising a multi-sheet pliable laminate shaped to cover the inner sole of a shoe and to receive the foot or sock of the wearer of the shoe, said laminate having a relatively thick bottom open cell resilient foam compressible plastics material layer with a smooth nonporous bottom skin, an intermediate impervious relatively incompressible pliable plastics sheet layer having activated charcoal particles dispersed uniformly therethrough and anchored therein and a top fabric layer, said foam and intermediate layers being formed in situ on said top fabric layer and heat bonded together and to said top fabric layer in unitary relation, a myriad of small diameter holes extending perpendicularly through all of the layers, said activated charcoal particles being exposed to the peripheral walls of said holes and to the interfaces of the intermediate layer with the open cell and fabric layers to absorb moisture and odors in air passing through the holes as the open cell layer is alternately compressed and expanded to pump air from and into the cells under application and release of load from the foot of the wearer as in walking.
Claim 5
Dependent Claim
18 words
The insole of claim 1 wherein the open cell resilient compressible plastics sheet is composed of foam latex.
Claim 6
Dependent Claim
16 words
The insole of claim 1 wherein the intermediate pliable sheet is composed of a styrene-butadiene latex.
Claim 7
Dependent Claim
15 words
The insole of claim 1 wherein the top fabric sheet is composed of woven twill.
Claim 8
Dependent Claim
17 words
The insole of claim 1 wherein the intermediate layer contains from 15-30% by weight of activated charcoal.
Claim 9
Dependent Claim
17 words
The insole of claim 1 wherein the odor-absorbing chemical is activated charcoal of about 200 mesh size.
Claim 10
Dependent Claim
16 words
The insole of claim 1 wherein the holes having a diameter of about 0.05 to 0.057.
Claim 11
Dependent Claim
13 words
The insole of claim 8 wherein the holes are spaced about 0.3 inches.
Claim 12
Dependent Claim
24 words
The insole of claim 9 wherein the holes are arranged in aligned rows with holes of adjacent rows being offset halfway between the spacings.