US4798192A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Far-infrared radiating system
Assignee: NIPPON CHEMICAL PLANT CONSULTANT Co Ltd NIPPON BLDG NO 427 ROOM NO 6-2 OHTEMACHI 2-CHOME CHIYODA-KU TOKYO JAPAN
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Filing: 1987-09-23
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Granted: 1989-01-17
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Expires: 2007-09-23
Abstract
Abstract A far-infrared radiating system comprises a far-infrared radiating element (2) such as a ceramic, adhered to a metallic material (1) and radiating far-infrared rays upon heating. The system is constructed of a primary-radiating element (5) which is made of a metallic material while heated by a combustion gas passing therethrough and a secondary-radiating element (3) provided with the far-infrared radiating element (2) adhered to the metallic material (1). The primary-radiating element (5) is spaced apart and oppositely disposed from the secondary-radiating element (3) which is heated by infrared rays radiated from the primary-radiating element (5) having been heated with a combustion gas passing therethrough, whereby the secondary-radiating element (3) radiates far-infrared rays.
Inventors
- 👤 Saburo Maruko
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 21:12
CPC Classifications
F; F24; F24C; F24C1/00; F24C1/08; F24C1/10; F24C3/00; F24C3/04; F24C3/042; F24D; F24D5/00; F24D5/06; F24D5/08
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
122 words
A far-infrared radiating system comprising: a primary-radiating element for radiating far-infrared rays having short wavelengths upon being heated, said primary-radiating element being a metallic conduit through which a catalytic-combustion-gas flow can pass to heat the same and a first far-infrared radiating element adhered closely to an outer periphery of said conduit, and a secondary-radiating element comprising a metallic plate and a second far-infrared radiating element adhered to one surface of said plate, said secondary-radiating element having a wider surface area than that of said primary-radiating element and being spaced apart and oppositely disposed from said primary-radiating element, wherein far-infrared rays having long wavelengths are radiated upon heating said secondary-radiating element by receiving said far-infrared rays having short wavelengths from said primary-radiating element.
Claim 2
Dependent Claim
122 words
A far-infrared radiating system comprising: a primary-radiating element for radiating far-infrared rays having short wavelengths upon being heated, said primary-radiating element being a metallic conduit through which a catalytic-combustion-gas flow can pass to heat the same and a first far-infrared radiating element adhered closely to an outer periphery of said conduit, and a secondary-radiating element comprising a metallic plate and a second far-infrared radiating element adhered to one surface of said plate, said secondary-radiating element having a wider surface area than that of said primary-radiating element and being spaced apart and oppositely disposed from said primary-radiating element, wherein far-infrared rays having long wavelengths are radiated upon heating said secondary-radiating element by receiving said far-infrared rays having short wavelengths from said primary-radiating element.
Claim 3
Dependent Claim
21 words
The far-infrared radiating system as set forth in claim 1, wherein said metallic plate is semi-cylindrical and encircles said primary-radiating element.
Claim 4
Dependent Claim
29 words
The far-infrared radiating system as set forth in claim 2, wherein said second far-infrared radiating element is provided on said one surface of said plate facing said primary-radiating element.
Claim 5
Dependent Claim
27 words
The far-infrared radiating system as set forth in claim 3, wherein a surface of said plate opposite said one surface is coated with a heat insulating material.
Claim 6
Dependent Claim
54 words
The far-infrared radiating system as set forth in claim 4 wherein said secondary-radiating element further comprises a second metallic plate positioned relative to said metallic plate so as to sandwich said primary-radiating element therebetween and a third far-infrared element adhered to a surface of said second metallic plate facing away from said primary-radiating element.
Claim 7
Dependent Claim
32 words
The far-infrared radiating system as set forth in claim 1, wherein: said primary-radiating element is provided inside a box an outer peripheral surface of which is coated with a far-infrared radiating element.
Claim 8
Dependent Claim
48 words
The far-infrared radiating system as set forth in claim 1, wherein : said primary-radiating element is oppositely disposed from said far-infrared radiating element of said secondary-radiating element; and both said primary-radiating element and said secondary-radiating element are covered with a heat insulating material except their oppositely disposed portions.
Claim 9
Dependent Claim
42 words
The far-infrared radiating system as set forth in claim 1, wherein: said primary-radiating element is encircled with a reflecting member having a U-shaped cross section; and an open side of said reflecting member is oriented upward and outward toward said secondary-radiating element.
Claim 10
Dependent Claim
25 words
The far-infrared radiating system as set forth in claim 1, wherein: an outer surface of said reflecting member is coated with a far-infrared radiating element.
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) | 1992-01-17 | 1992-07-18 | 1993-01-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-01-17 | 1996-07-18 | 1997-01-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-01-17 | 2000-07-18 | 2001-01-17 | $7700.00 | Window Closed / Lapsed |