Asymmetric radiant electric heater with multiple heating zones
First Claim
1. An asymmetric radiant electric heater with multiple heating zones which can be arranged in a plurality of configurations, the heater comprising:
- a dish-like support having two orthogonal axes of symmetry;
a base of thermal and electrical insulation material in the dish-like support;
a first heating element and a second heating element supported adjacent one another on a major surface of the base and forming an asymmetric arrangement in the dish-like support;
a terminal block secured at a fixed location at an edge of the dish-like support;
a wall arrangement of thermal insulation material supported on the base and comprising a peripheral wall extending around the heater and a dividing wall, integral therewith, extending between the adjacent first and second heating elements to form at least two asymmetric heating zones, the peripheral wall being provided with a recess at each end of the dividing wall at a lower edge of the wall arrangement to selectively accommodate electrical connections between the terminal block and at least one of the first and second heating elements;
the wall arrangement being adapted and arranged to cooperate with the base and the terminal block whereby the wall arrangement is fitted to the heater in a first position to accommodate a first configuration of the adjacent first and second heating elements and in a second position, representing 180 degrees of rotation of the wall arrangement from the first position about an axis perpendicular to a base of the dish-like support, to accommodate a second configuration comprising a mirror image arrangement of the adjacent first and second heating elements.
1 Assignment
0 Petitions
Accused Products
Abstract
An asymmetric radiant electric heater has multiple heating zones which can be arranged in a plurality of configurations. The heater comprises a dish-like support having two orthogonal axes of symmetry, a base of thermal and electrical insulation material in the dish-like support, a first heating element and a second heating element supported adjacent one another on a major surface of the base and forming an asymmetric arrangement in the dish-like support, a terminal block secured at a fixed location at an edge of the dish-like support, and a wall arrangement of thermal insulation material supported on the base and comprising a peripheral wall extending around the heater and a dividing wall, integral therewith, extending between the adjacent first and second heating elements to form at least two asymmetric heating zones. The wall arrangement is adapted and arranged to cooperate with the base and the terminal block whereby the wall arrangement is fitted to the heater in a first position to accommodate a first configuration of the adjacent first and second heating elements and in a second position, representing 180 degrees of rotation of the wall arrangement from the first position about an axis perpendicular to a base of the dish-like support, to accommodate a second configuration comprising a mirror image arrangement of the adjacent first and second heating elements.
24 Citations
28 Claims
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1. An asymmetric radiant electric heater with multiple heating zones which can be arranged in a plurality of configurations, the heater comprising:
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a dish-like support having two orthogonal axes of symmetry;
a base of thermal and electrical insulation material in the dish-like support;
a first heating element and a second heating element supported adjacent one another on a major surface of the base and forming an asymmetric arrangement in the dish-like support;
a terminal block secured at a fixed location at an edge of the dish-like support;
a wall arrangement of thermal insulation material supported on the base and comprising a peripheral wall extending around the heater and a dividing wall, integral therewith, extending between the adjacent first and second heating elements to form at least two asymmetric heating zones, the peripheral wall being provided with a recess at each end of the dividing wall at a lower edge of the wall arrangement to selectively accommodate electrical connections between the terminal block and at least one of the first and second heating elements;
the wall arrangement being adapted and arranged to cooperate with the base and the terminal block whereby the wall arrangement is fitted to the heater in a first position to accommodate a first configuration of the adjacent first and second heating elements and in a second position, representing 180 degrees of rotation of the wall arrangement from the first position about an axis perpendicular to a base of the dish-like support, to accommodate a second configuration comprising a mirror image arrangement of the adjacent first and second heating elements. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. An asymmetric radiant electric heater with multiple heating zones which can be arranged in a plurality of configurations, the heater comprising:
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a dish-like support having two orthogonal axes of symmetry;
a base of thermal and electrical insulation material in the dish-like support;
a first heating element and a second heating element supported adjacent one another on a major surface of the base and forming an asymmetric arrangement in the dish-like support;
a terminal block secured at a fixed location at an edge of the dish-like support;
a wall arrangement of thermal insulation material supported on the base and comprising a peripheral wall extending around the heater and a dividing wall, integral therewith, extending between the adjacent first and second heating elements to form at least two asymmetric heating zones, a pair of matching elongate projections being provided directly opposite each other on opposite lower edges of an outer rim of the peripheral wall of the wall arrangement, one of the projections being arranged to bear on the terminal block and the other of the projections being accommodated in a substantially complementary recess provided in the base layer of thermal and electrical insulation material;
the wall arrangement being adapted and arranged to cooperate with the base and the terminal block whereby the wall arrangement is fitted to the heater in a first position to accommodate a first configuration of the adjacent first and second heating elements and in a second position, representing 180 degrees of rotation of the wall arrangement from the first position about an axis perpendicular to a base of the dish-like support, to accommodate a second configuration comprising a mirror image arrangement of the adjacent first and second heating elements. - View Dependent Claims (17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28)
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Specification