Patent US2425834A successfully refreshed from Google Patents.
US4282005A
Expired / Lapsed
US
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Body warmer for heating by exothermic heat
Assignee: Kensen Co Ltd
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Filing: 1979-12-26
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Granted: 1981-08-04
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Expires: 1999-12-26
Abstract
Abstract A body warmer for heating a human body by means of exothermic heat which consists of a particulate exothermic substance containing a main constituent for reducing a metallic oxide with the air and water content externally supplied for heating the body by the chemical reaction thereof, a fibrous agricultural solid waste impregnated with sodium chloride, bitter or composition salt, and an air permeable bag for filling the exothermic substance and the fibrous agricultural solid waste. Thus, the body warmer can heat at safe and effective temperature continuously for extremely long time so as to cure even neuralgia.
Inventors
- 👤 Masaharu Sato
- 👤 Michio Sugiura
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:14
CPC Classifications
A; A61; A61F; A61F7/00; A61F7/02; A61F7/03; A61F7/032; A61F7/034; F; F24; F24V; F24V30/00; A61F2007/036; A61F2007/038
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
109 words
A body warmer for heating a human body by exothermic heat comprising: (a) an elongated air permeable paper bag for holding heat producing materials (b) a sheath bag disposed around said air permeable bag; and, (c) heat producing materials in said paper bag consisting of about 20 parts of ferrosoferric oxide about 25 parts of manganese dioxide about 5 parts of magnesium oxide about 2 parts of holmium oxide about 4 parts of sodium chloride about 2 to 15 parts of sugar-beat waste materials about 1 part boron oxide about 3 parts of pearlite about 5 parts of carbon, and about 40 parts of iron filings or iron dust.
Claim 2
Dependent Claim
109 words
A body warmer for heating a human body by exothermic heat comprising: (a) an elongated air permeable paper bag for holding heat producing materials (b) a sheath bag disposed around said air permeable bag; and, (c) heat producing materials in said paper bag consisting of about 20 parts of ferrosoferric oxide about 25 parts of manganese dioxide about 5 parts of magnesium oxide about 2 parts of holmium oxide about 4 parts of sodium chloride about 2 to 15 parts of sugar-beat waste materials about 1 part boron oxide about 3 parts of pearlite about 5 parts of carbon, and about 40 parts of iron filings or iron dust.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1984-08-03 | 1985-02-02 | 1985-08-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-08-03 | 1989-02-02 | 1989-08-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-08-03 | 1993-02-02 | 1993-08-04 | $7700.00 | Window Closed / Lapsed |