US3833791A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Resistance type fluid heating apparatus
Assignee: Schladitz Whiskers AG
•
Filing: 1970-04-06
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Granted: 1974-09-03
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Expires: 1990-04-06
Abstract
Abstract A method and apparatus for rapidly heating gases, liquids, vapors and aerosols to a desired temperature by electric resistance heating. More particularly, the present disclosure is directed to a method and apparatus for rapidly heating up a medium such as gases, liquids, vapors, and aerosols to a desired temperature by means of an electric resistance heater, comprising the steps of guiding the medium to be treated through the electric resistance heater in such a manner as to expose said medium to a structural surface of at least about 800 square centimeters per cubic centimeter of medium to be treated.
Inventors
- 👤 H Schladitz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 00:59
CPC Classifications
F; F24; F24H; F24H1/00; F24H1/0027; F24H1/0045; F24H1/10; F24H1/101; H; H05; H05B; H05B3/00; H05B3/10; H05B3/12; H05B3/14; H05B3/141; H05B3/40; H05B3/42; H05B3/48; Y; Y10; Y10T; Y10T428/00; Y10T428/12; Y10T428/12347; Y10T428/12479
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
73 words
A resistance heating element for an electric resistance heater for heating fluids, comprising: a porous mat of fine, electrically-conductive, elongated elements connected together so as to be electrically conductive, and power means for supplying electrical energy to said mat, said elongated elements being selected from the group consisting of metal-coated non-metal whiskers and polycrystalline metal whiskers, wherein said elongated elements are connected at the contact points thereof by metallization from the gaseous phase.
Claim 2
Dependent Claim
73 words
A resistance heating element for an electric resistance heater for heating fluids, comprising: a porous mat of fine, electrically-conductive, elongated elements connected together so as to be electrically conductive, and power means for supplying electrical energy to said mat, said elongated elements being selected from the group consisting of metal-coated non-metal whiskers and polycrystalline metal whiskers, wherein said elongated elements are connected at the contact points thereof by metallization from the gaseous phase.
Claim 3
Dependent Claim
70 words
A resistance heating element for an electric resistance heater for heating fluids, comprising: a porous mat of fine, electRically-conductive, elongated elements connected together so as to be electrically conductive, and power means for supplying electrical energy to said mat, said elongated elements being selected from the group consisting of metal-coated non-metal whiskers and polycrystalline metal whiskers, said elongated elements being connected at the contact points thereof by electron beam welding.
Claim 4
Dependent Claim
70 words
A resistance heating element for an electric resistance heater for heating fluids, comprising: a porous mat of fine, electRically-conductive, elongated elements connected together so as to be electrically conductive, and power means for supplying electrical energy to said mat, said elongated elements being selected from the group consisting of metal-coated non-metal whiskers and polycrystalline metal whiskers, said elongated elements being connected at the contact points thereof by electron beam welding.
Claim 5
Dependent Claim
20 words
A resistance heating element according to claim 2, wherein said elongated elements consist of metalized monocrystalline whiskers of aluminum oxide.
Claim 6
Dependent Claim
79 words
A resistance heating element for an electric resistance heater for heating fluids, comprising: a porous mat of fine, electrically-conductive, elongated elements connected together so as to be electrically conductive, and power means for supplying electrical energy to said mat, said elongated elements being selected from the group consisting of metal-coated non-metal whiskers and polycrystalline metal whiskers, wherein said elongated elements are provided with a layer of electrically-insulating material selected from the group consisting of insulating lacquers, plastics and oxides.
Claim 7
Dependent Claim
79 words
A resistance heating element for an electric resistance heater for heating fluids, comprising: a porous mat of fine, electrically-conductive, elongated elements connected together so as to be electrically conductive, and power means for supplying electrical energy to said mat, said elongated elements being selected from the group consisting of metal-coated non-metal whiskers and polycrystalline metal whiskers, wherein said elongated elements are provided with a layer of electrically-insulating material selected from the group consisting of insulating lacquers, plastics and oxides.
Claim 8
Dependent Claim
53 words
A resistance heating element for an electric resistance heater for heating fluids, comprising: a porous mat of fine, electrically conductive, elongated elements connected together so as to be electrically conductive, and power means for supplying electrical energy to said mat, said elongated elements being selected from the group consisting of metal-coated non-metal whiskers.
Claim 9
Dependent Claim
53 words
A resistance heating element for an electric resistance heater for heating fluids, comprising: a porous mat of fine, electrically conductive, elongated elements connected together so as to be electrically conductive, and power means for supplying electrical energy to said mat, said elongated elements being selected from the group consisting of metal-coated non-metal whiskers.
Claim 10
Dependent Claim
20 words
A resistance heating element according to claim 5, wherein said elongated elements consist of metalized monocrystalline whiskers of aluminum oxide.
Claim 11
Dependent Claim
64 words
A resistance heating element for an electric resistance heater for heating fluids, comprising: a porous mat of fine, electrically-conductive, elongated elements connected together so as to be electrically conductive, and power means for supplying electrical energy to said mat, said elongated elements consisting of metalized monocrystalline whiskers of aluminum oxide, said elongated elements being connected at the contact points thereof by electron beam welding.
Claim 12
Dependent Claim
64 words
A resistance heating element for an electric resistance heater for heating fluids, comprising: a porous mat of fine, electrically-conductive, elongated elements connected together so as to be electrically conductive, and power means for supplying electrical energy to said mat, said elongated elements consisting of metalized monocrystalline whiskers of aluminum oxide, said elongated elements being connected at the contact points thereof by electron beam welding.
References Cited (Backward Citations)
US795956A
Cited
US1738164A
Cited
GB531112A
Cited
US2884319A
Cited
US3032635A
Cited
US3087233A
Cited
US3165826A
Cited
US3278279A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-09-02 | 1978-03-04 | 1978-09-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-09-02 | 1982-03-04 | 1982-09-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-09-02 | 1986-03-04 | 1986-09-03 | $7700.00 | Window Closed / Lapsed |