Shoe with internal foot warmer
First Claim
1. A shoe with internal warming means comprising:
- a. a shoe subassembly of an external sole plate and an upper foot covering coextensive with, and extending above said external sole plate;
b. a heel fixedly secured on the rear undersurface of said external sole plate and having an internal cavity therein;
c. an internal sole plate pivotally mounted on a hinge at a forward location in said shoe for up and down movement above said heel;
d. at least one electrical resistance heater received within said shoe subassembly;
e. electrical power generation means mounted within said cavity of said heel with electrical conductor leads connecting said power generation means in series to said electrical resistance heater;
f. lever means received in said cavity of said heel and operatively mounted on the internal sole plate and connected in a driving relationship to said power generation means whereby vertical movement of said internal sole plate is effective to generate electrical power to effect warming of said shoe by said electrical resistance heater.
1 Assignment
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Accused Products
Abstract
There is disclosed a shoe with an internal warming mechanism which comprises an electrical resistance coil in the sole or upper coverings of the shoe, and with an electrical generation mechanism in the heel of the shoe which is driven by the up-and-down movements of the wearer'"'"'s heel which accompanies normal activities such as skiing, hiking, etc. The electrical generator includes an armature mounted for rotational movement in a magnetic field and mechanically connected to a vertical post which is dependent on the undersurface of the heel portion of the inner sole of the shoe. The post is connected through a vertical spiral groove to a sleeve which is coupled with an escapement to a flywheel that is unidirectionally driven by the sleeve. The flywheel is coupled through a gear train to the armature of the electrical generator.
56 Citations
24 Claims
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1. A shoe with internal warming means comprising:
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a. a shoe subassembly of an external sole plate and an upper foot covering coextensive with, and extending above said external sole plate; b. a heel fixedly secured on the rear undersurface of said external sole plate and having an internal cavity therein; c. an internal sole plate pivotally mounted on a hinge at a forward location in said shoe for up and down movement above said heel; d. at least one electrical resistance heater received within said shoe subassembly; e. electrical power generation means mounted within said cavity of said heel with electrical conductor leads connecting said power generation means in series to said electrical resistance heater; f. lever means received in said cavity of said heel and operatively mounted on the internal sole plate and connected in a driving relationship to said power generation means whereby vertical movement of said internal sole plate is effective to generate electrical power to effect warming of said shoe by said electrical resistance heater. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24)
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Specification