Patent US4762862A successfully refreshed from Google Patents.
Patent EP0037638B1 successfully refreshed from Google Patents.
EP0037638B1
Expired / Lapsed
EP
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Cooking apparatus
Assignee: Electrical and Musical Industries Ltd
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Filing: 1981-03-04
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Granted: 1984-05-09
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Expires: 2001-03-04
Abstract
No abstract record available.
Inventors
- 👤 John Stephen Newton
- 👤 Husein Abdul Patel
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-06 17:15
CPC Classifications
F; F24; F24C; F24C15/00; F24C15/10; F24C15/102; F24C15/105; H; H05; H05B; H05B3/00; H05B3/68; H05B3/74; H05B3/746; H05B2213/00; H05B2213/04; H05B2213/07
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
167 words
Cooking apparatus including: a hot plate (2a); a heater (4) disposed below and spaced from the hot plate (2a) for heating the hot plate (2a) predominantly by radiation; and a first temperature responsive element (9) spaced from the hot plate (2a) by a gap, and disposed, in use, to receive heat energy across the gap directly from the hot plate (2a), so that the heat energy it receives is primarily radiant energy directly from the hot plate (2a), and to produce a first electrical signal indicative of the temperature sensed thereby; characterised in that the cooking apparatus also includes; a further temperature responsive element (11) arranged to sense the temperature of an area (2b) of the hot plate shielded from direct heating by the heater (4) and to produce a second electrical signal indicative of the sensed temperature; and control circuitry (5, 6, 10) wherein the first signal is used for maximum temperature cut-out and the second signal is used for closed loop control of the heater.
Claim 2
Dependent Claim
167 words
Cooking apparatus including: a hot plate (2a); a heater (4) disposed below and spaced from the hot plate (2a) for heating the hot plate (2a) predominantly by radiation; and a first temperature responsive element (9) spaced from the hot plate (2a) by a gap, and disposed, in use, to receive heat energy across the gap directly from the hot plate (2a), so that the heat energy it receives is primarily radiant energy directly from the hot plate (2a), and to produce a first electrical signal indicative of the temperature sensed thereby; characterised in that the cooking apparatus also includes; a further temperature responsive element (11) arranged to sense the temperature of an area (2b) of the hot plate shielded from direct heating by the heater (4) and to produce a second electrical signal indicative of the sensed temperature; and control circuitry (5, 6, 10) wherein the first signal is used for maximum temperature cut-out and the second signal is used for closed loop control of the heater.
Claim 3
Dependent Claim
40 words
Cooking apparatus as claimed in claim 1 wherein the heater (4) is disposed in an open-topped housing (7) below the hot plate (2a) and the first-mentioned temperature responsive element (9) is mounted on the floor (7a) of the housing (7).
Claim 4
Dependent Claim
48 words
Cooking apparatus as claimed in claim 1 or claim 2 wherein the further temperature responsive element (11) is disposed below the hot plate (2a) within a shield (12), the shields both it and said area (2b) of the hot plate (2a) from direct heating by the heater (4).
Claim 5
Dependent Claim
42 words
Cooking apparatus as claimed in claim 1, 2 or 3 wherein the first-mentioned temperature responsive element (9) is arranged so that, in a period following initial turn-on of the heater (4), it is heated predominently by energy direct from the heater (4).
Claim 6
Dependent Claim
58 words
Cooking apparatus as claimed in any one of claims 1 to 3 wherein the first-mentioned temperature responsive element (9) has a reflector (8) associated therewith, the reflector (8) being arranged to focus radiant energy from the hot plate (2a) towards the first-mentioned temperature responsive element (9) and to shield it from direct heat energy from the heater (4).
Claim 7
Dependent Claim
45 words
Cooking apparatus as claimed in any preceding claim, wherein the further temperature responsive element (11) has a reflector (13) associated therewith, the reflector (13) being arranged to focus radiant energy from said area (2b)' of the hot plate towards the further temperature responsive element (11).
Claim 8
Dependent Claim
38 words
Cooking apparatus as claimed in any preceding claim wherein the temperature sensed by the further temperature responsive element (11) is substantially that of a pan disposed upon the hot plate (2a) and being heated by the heater (4).
Claim 9
Dependent Claim
25 words
Cooking apparatus as claimed in any preceding claim wherein at least one of the temperature responsive elements (9, 11) consists of a platinum wire resistor.
Claim 10
Dependent Claim
19 words
Cooking apparatus as claimed in any preceding claim wherein the hot plate (2a) is a ceramic or glass plate.
References Cited (Backward Citations)
DE7405641U
Cited
DE687647C
Cited
GB1406028A
Cited
DE2444753A1
Cited
DE2608295A1
Cited
DE2620004B2
Cited
DE7930529U1
Cited
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