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US 4,729,179 AGranted
Shoe insole
AssigneeKinney Shoe Corporation
InventorBarr Quist, Jr.
Life of this patent
Estimating the term…
Abstract
A multi-layer shoe insole comprises a lowermost metal layer connected to a polyethylene foam layer via a film of polyethylene. An uppermost layer in the form of a felt material is connected to the polyethylene foam via a textile net embedded in a layer of synthetic resin. The insole is provided with a removably attached arch support and a removably attached heel cup. The layers of the insole are stitched to one another by a pair of threads which also serve to maintain the peripheral edge of the insole are a smooth line.
Claims23
A shoe insole comprising:
- a layer of metal foil;
- a layer of felt material forming an uppermost layer in the insole, said layer of metal foil forming a lowermost layer in the insole;
- a flexible layer of polyethylene foam disposed between said metal foil and said layer of felt material;
- a textile net embedded in a layer of thermoplastic resin disposed between said layer of felt material and said layer of polyethylene foam;
- and
- coupling means for connecting said layer of felt material, said texile net, said layer of polyethylene foam and said metal foil to one another and for maintaining same in an integral configuration.
3 more elements
A shoe insole comprising:
- reflective means including a layer of metal foil for reflecting heat energy to insulate a person's foot;
- absorption means for absorbing and temporarily storing moisture from a sole of the person's foot, said absorption means including a layer of felt material forming an uppermost layer in the insole, said layer of metal foil forming a lowermost layer in the insole;
- means disposed between said metal foil and said layer of felt material for insulating and cushioning the person's foot, said means for insulating and cushioning including a flexible layer of polyethylene foam;
- reinforcement means disposed between said layer of felt material and said layer of polyethylene foam for lending strength and stability to the insole, said reinforcement means including a textile net embedded in a layer of thermoplastic resin;
- and
- coupling means for connecting said layer of felt material, said texile net, said layer of polyethylene foam and said metal foil to one another and for maintaining same in an integral configuration.
3 more elements
Dependencies are inferred from the claim text.