Patent EP0360418A1 successfully refreshed from Google Patents.
EP0360418A1
Expired / Lapsed
EP
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Strip heater
Assignee: Toshiba Lighting and Technology Corp
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Filing: 1989-08-22
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Granted: —
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Expires: 2009-08-22
Abstract
Abstract A strip heater of laminated construction is disclosed. The heater consists of an elongate planar substrate (21), made of alumina ceramic, on to which is deposited a glaze layer (22) which is baked on. A conductive layer (23) is then printed, or otherwise deposited on to the glaze layer (22) and protective layer (24) deposited to overly and protect the conductive layer (23). The conductive layer is deposited to provide terminal parts (23b) to connect the heater in an electric circuit. The construction provides a compact, mechanically strong and fast acting heater.
Inventors
- 👤 Takao Tsuyuki
- 👤 Shigero Sato
- 👤 Tesuo Ootani
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-09 06:25
CPC Classifications
H; H05; H05B; H05B3/00; H05B3/20; H05B3/22; H05B3/26; H05B3/265; G; G03; G03G; G03G15/00; G03G15/20; G03G15/2003; G03G15/2014; G03G15/2039; G03G15/2042
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
47 words
A strip heater characterised in that the heater is of laminated construction the layers comprising, a heat resistant substrate (21) and a strip of electrically conductive material mounted on the substrate; and, connector means (23b) adapted to enable electrical connection of the strip in an electric circuit.
Claim 2
Dependent Claim
47 words
A strip heater characterised in that the heater is of laminated construction the layers comprising, a heat resistant substrate (21) and a strip of electrically conductive material mounted on the substrate; and, connector means (23b) adapted to enable electrical connection of the strip in an electric circuit.
Claim 3
Dependent Claim
20 words
A strip heater according to claim 1, comprising a glaze layer (22) between the substrate (21) and the strip (23).
Claim 4
Dependent Claim
24 words
A strip heater according to claim 1 or claim 2, comprising a protection layer (24) formed over the strip (23) and the substrate (21).
Claim 5
Dependent Claim
26 words
A strip heater according to any preceding claim wherein the strip is made from one or more of: (a) a silver palladium alloy, (b) ruthenium oxide.
Claim 6
Dependent Claim
17 words
A strip heater according to any preceding claim, wherein the connector means (23b) comprises silver terminal sections.
Claim 7
Dependent Claim
21 words
A strip heater according to any preceding claim, wherein the width of the strip is reduced near the connector means (23b)
Claim 8
Dependent Claim
25 words
A strip heater according to any of claims 1 to 5, wherein the width of the strip (23) is increased near the connector means (23b).
Claim 9
Dependent Claim
27 words
A strip heater according to any of claims 1 to 6, wherein the strip (23) is tapered in width from its centre to the connector means (23b).
Claim 10
Dependent Claim
25 words
A strip heater according to any of claims 1 to 7, wherein the width of the strip is repeatedly increased and decreased along its length.
Claim 11
Dependent Claim
28 words
A strip heater according to any one of the preceding claims, wherein the strip (23) is comprised of a plurality of segments (23e, f) of different electrical resistances.
Claim 12
Dependent Claim
21 words
A strip heater according to any one of claims 3 to 10, wherein the protection layer (24) has a curved surface.
Claim 13
Dependent Claim
26 words
A strip heater according to any one of claims 3 to 11, wherein the protection layer (24) has a higher thermal conductivity than the substrate (21).
References Cited (Backward Citations)
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