Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
134 words
Electrical heat-generating apparatus comprising at least one band- or strip-like heating unit (8) having two parallel electrodes (1, 1 1 ) and resistance elements (2) intervening therebetween over the entire length of the electrodes and connected to both the electrodes in parallel, and individual feeding point terminals (13. 14) to the respective electrodes, characterised in that the feeding point (13) to one of the electrodes (1) and that (14) to another of the electrodes (1') are located at diagonal positions relative to the quadrilateral formed by the two electrodes (1, 1') and the outermost two of the resistance elements (2) forming a heat-generating unit (8), and preferably a plurality of the heat-generating units (8) are connected in series at the feeding points thereof to form a set of strip or band-form, heating generating apparatus.
Claim 2
Dependent Claim
134 words
Electrical heat-generating apparatus comprising at least one band- or strip-like heating unit (8) having two parallel electrodes (1, 1 1 ) and resistance elements (2) intervening therebetween over the entire length of the electrodes and connected to both the electrodes in parallel, and individual feeding point terminals (13. 14) to the respective electrodes, characterised in that the feeding point (13) to one of the electrodes (1) and that (14) to another of the electrodes (1') are located at diagonal positions relative to the quadrilateral formed by the two electrodes (1, 1') and the outermost two of the resistance elements (2) forming a heat-generating unit (8), and preferably a plurality of the heat-generating units (8) are connected in series at the feeding points thereof to form a set of strip or band-form, heating generating apparatus.
Claim 3
Dependent Claim
61 words
Electrical heat-generating apparatus according to claim 1, characterised in that terminals are provided at the respective feeding points located at the respective ends of a combined strip-form, heat-generating apparatus composed of a plurality of the strip-like heat-generating units having two feeding points located diagonally, which are connected in series at the respective feeding points to form the strip-form, electrical heat-generating apparatus.
Claim 4
Dependent Claim
69 words
Electrical heat-generating apparatus according to claim 2, characterised in that between the two electrodes of the heat-generating unit, or between adjacent ends of the electrodes of adjacent heat-generating units and having no feeding point located there, there is provided at least one of (a) a voltmeter, (b) a relay for detecting abnormalities of voltage and (c) a relay for short-circuiting these electrodes when the resistance elements have been damaged.
Claim 5
Dependent Claim
74 words
Electrical heat-generating apparatus according to claim 2, characterised in that between the two electrodes of the heat-generating unit, or between adjacent ends of the electrodes of adjacent heat-generating units and having no feeding point located there, terminals are provided for temporary connection of at least of one of (a) a voltmeter, (b) a relay for detecting abnormalities of voltage and (c) a relay for short-circuiting these electrodes when the resistance elements have been damaged.