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 Title: |
US5375430:
Gravity powered shoe air conditioner
[ Derwent Title ]
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| Country: |
US United States of America
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| Inventor: |
Siegel, Israel; N. Miami Beach, FL 33160
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| Assignee: |
None
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| Published / Filed: |
1994-12-27
/ 1993-10-05
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| Application Number: |
US1993000131389
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| IPC Code: |
Advanced:
F04B 45/02;
F25B 27/00;
IPC-7:
F25D 23/12;
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| ECLA Code: |
A43B7/00B; A43B7/02; F04B45/02S; F25B27/00;
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| U.S. Class: |
Current:
062/259.3;
062/467;
062/498;
417/473;
Original:
062/259.3;
062/467;
062/498;
417/473;
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| Field of Search: |
062/259.3,467,498,499
417/472,473
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| Priority Number: |
| 1993-10-05 |
US1993000131389 |
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| Abstract: |
A compressor-expander type cooling, or heating system, is incorporated into a heel of a shoe, and is powered by reciprocal gravity pressures upon the shoe which occur naturally during walking. The cooling system functions through a bellows compressor chamber and a separate bellows expander chamber. The movable walls of the expander and the compressor are placed opposite each other, and transmit opposing vector forces to each other. A movable heel portion at the bottom of the shoe transmits movement to the movable walls of the compressor and the expander whenever the person wearing the shoes steps on the heel. This expands the expander and compresses the compressor. A network of heat exchange coils, containing a low boiling point liquid, communicates with the expander, and functions as heat absorbing evaporator. Another network of heat exchange coils communicates with the compressor chamber, and functions as a heat delivering condenser. Depending on the locations the evaporator and the condenser networks, the shoe can serve as a foot cooler or a foot warmer.
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| Primary / Asst. Examiners: |
Sollecito, John M.;
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| Maintenance Status: |
E1 Expired Check current status
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| INPADOC Legal Status: |
Show legal status actions
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| Family: |
None
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First Claim:
Show all 8 claims |
What is claimed is:
1. A temperature changing system, said temperature changing system includes at least two bellows chambers, wherein one chamber is adapted to act as an expander chamber, while the other chamber is adapted to act as a compressor chamber,
- a movable wall in each of said bellows chamber,
- said movable walls adapted to respond to outside pressures and inside pressures in said bellows chambers,
- a linkage between said movable walls which causes a transmission of vector forces from one of said movable wall to another,
- relative positions of said bellows chambers which cause the direction of movement of one of said movable walls to be opposite of the direction of movement of the other of said movable wall,
- a pressure inside of each of said chambers which is different from the pressure outside of said chamber, wherein said pressure differential exert a force upon the movable wall of each bellows chamber,
- means to fix the distance between said chambers to prevent a movement of said chambers towards and away from each other during the operation of said engine,
- said distance being of a dimension which causes each of said movable wall to transmit said force, induced by said pressure differential, to the other of said movable wall, wherein the positions of said movable walls, before operational force is applied to the system, are determined by the balance of opposing forces upon said movable walls, and wherein said positions allows an expansion of said expander chamber and a compression of said compressor chamber after operational force is applied to the system,
- means to apply a vector force upon the movable walls to tip the balance of forces between the movable walls and cause a movement of said walls,
- said movement adapted to cause an expansion of said expander chamber and a compression of said compressor chamber, wherein the expansion of said evaporator chamber causes the contraction of its adjacent compressor chamber,
- means to remove said vector force upon said movable walls to allow a return of said movable walls to their original positions,
- a network of coils communicating with said expander chamber, wherein said network function as an evaporator chamber,
- a network of coils communicating with said compressor chamber, wherein said network functions as a condenser chamber,
- a low boiling point fluid in said evaporator and condenser chambers wherein said fluid absorbs heat from its surroundings during the expansion of said expander chamber, and transfers heat to it surroundings during the compression of said compressor chambers,
- means allowing an entry of vapor from said compressor chamber to said condenser chamber but preventing an entry from said condenser chamber to said compressor chamber,
- means preventing passage of vapor from said expander chamber to said evaporator chamber, but allowing passage of vapor from said evaporator chamber to said expander chamber,
- means to transfer vapor from said expander chamber to said compressor chamber during the return of said expander and said compressor chambers to their original volumes, to re-condense said vapor into a liquid,
- and means to return said re-condensed liquid from said condenser chamber to said evaporator chamber.
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| Background / Summary: |
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| Drawing Descriptions: |
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| Description: |
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| Forward References: |
Show 10 U.S. patent(s) that reference this one
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