# US 10,765,597 B2 · Sauna heating apparatus and methods

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- Number: US 10,765,597 B2
- Document ID: US10765597B2
- Status: Granted
- Kind: B2
- Application number: 14/986,631
- Filed: 2016-01-01
- Published: 2017-07-06
- Granted: 2020-09-08
- Earliest claimed: 2014-08-23
- Assignees: High Tech Health International, Inc.
- Applicants: High Tech Health International, Inc.
- Inventors: Erik Johnson
- Web page: https://patentgrep.com/patent/US10765597B2

## CPC

- A61H 33/063: {Heaters specifically designed therefor}
- H05B 3/0085: {for medical applications}
- H05B 3/12: characterised by the composition or nature of the conductive material
- H05B 3/26: heating conductor mounted on insulating base {(for transparent areas H05B3/84, H05B3/86)}
- H05B 3/56: Heating cables
- A61H 33/066: {Cabins therefor}
- A61H 2033/061: {Artificial hot-air baths}
- A61H 2201/0228: heated by an electric resistance element
- A61H 2201/50: Control means thereof
- H05B 2203/014: Heaters using resistive wires or cables not provided for in H05B3/54
- H05B 2203/017: Manufacturing methods or apparatus for heaters
- A61H: PHYSICAL THERAPY APPARATUS, e.g. DEVICES FOR LOCATING OR STIMULATING REFLEX POINTS IN THE BODY; ARTIFICIAL RESPIRATION; MASSAGE; BATHING DEVICES FOR SPECIAL THERAPEUTIC OR HYGIENIC PURPOSES OR SPECIFIC PARTS OF THE BODY (electrotherapy, magnetotherapy, radiation therapy or ultrasound therapy A61N)
- H05B: ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL

## Abstract

In one embodiment, the present invention includes an apparatus to heat a body. A first conductive path and/or a second conductive path include a resistive heating element that produces heat from said current. The first conductive path is coupled to redirect the current to the second conductive path and set up complementapy magnetic fields between said first and second layers. A third layer substantially blocks an electric field produced from the resistive heating element included in the first layer and/or second layer.

## Claims

### Claim 1

An infrared apparatus for a sauna, said sauna including a plurality of walls that define an internal space, said infrared apparatus to heat said internal space, said infrared apparatus comprising:
a first layer having a first conductive path coupled to pass a current;
a second layer having a second conductive path running coincident to said first conductive path; and
a third layer situated between an interior of said internal space and said first and second layers,
wherein at least one of said first conductive path and said second conductive path includes a resistive heating element that produces heat from said current,
wherein said first conductive path is coupled to redirect said current to said second conductive path and set up complementary magnetic fields between said first and second layers, and
wherein said third layer substantially blocks an electric field produced from the resistive heating element included in the at least one of said first layer and said second layer.

### Claim 2 (depends on 1)

The infrared apparatus of claim 1, wherein a first magnetic field generated on said first layer is canceled by a second magnetic field generated on said second layer.

### Claim 3 (depends on 1)

The infrared apparatus of claim 1, wherein said third layer is a conductive fabric.

### Claim 4 (depends on 1)

The infrared apparatus of claim 1, wherein said third layer is coupled to earth ground.

### Claim 5

A sauna comprising:
a plurality of walls that define an internal space; and
an infrared heating system comprising:
a first layer having a first conductive path coupled to pass a current;
a second layer having a second conductive path running coincident to said first conductive path; and
a third layer situated between an interior of said internal space and said first and second layers,
wherein at least one of said first conductive path and said second conductive path includes a resistive heating element that produces heat from said current,
wherein said first conductive path is coupled to redirect said current to said second conductive path and set up complementary magnetic fields between said first and second layers, and
wherein said third layer substantially blocks an electric field produced from the resistive heating element included in the at least one of said first layer and said second layer.

### Claim 6 (depends on 5)

The sauna of claim 5, wherein said third layer is a conductive fabric.

### Claim 7 (depends on 5)

The sauna of claim 5, wherein said third layer is coupled to ground.

### Claim 8 (depends on 5)

The sauna of claim 5, wherein said third layer radiates the heat.

### Claim 9 (depends on 5)

The sauna of claim 5, wherein the first layer and the second layer are part of a printed circuit and said third layer is not part of the printed circuit board.