Cooking range oven having insulated oven door with viewing system
First Claim
1. An oven for a cooking range, the oven having a cavity, a marginal edge defining the boundary of the cavity, and a door, the door including an inner panel that faces the cavity and an outer panel generally parallel with and spaced from the inner panel, the inner and outer panels being connected adjacent their upper edges by an upper panel, the door comprising:
- an opening in the inner panel;
a first window mounted in the opening in the inner panel;
a first light transmissive device disposed between the inner and outer panels, the first light transmissive device directing light received through the first window toward the upper panel;
an opening in the upper panel; and
a second window mounted in the opening in the upper panel through which light from the first light transmissive device can pass.
1 Assignment
0 Petitions
Accused Products
Abstract
A door for the oven of a cooking range includes an inner panel that closes the oven and an outer panel spaced from the inner panel. The inner and outer panels are connected adjacent their upper edges by an upper panel. The inner panel includes a first window in the form of a wide-angle lens. The upper panel includes a second window. Light-transmissive devices including a prism and a mirror are disposed between the inner and outer panels so as to direct light received through the lens upwardly and outwardly through the second window. The interior of the oven is illuminated by low-voltage halogen lights carried by the inner panel. The door is insulated by disposing a microporous metal oxide thermal insulation material against the oven side of the inner panel. The insulation is held in place by a plate. The door includes an oven-contacting gasket that extends beyond the boundaries of the plate to provide a thermal barrier when the door off the oven is closed.
53 Citations
21 Claims
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1. An oven for a cooking range, the oven having a cavity, a marginal edge defining the boundary of the cavity, and a door, the door including an inner panel that faces the cavity and an outer panel generally parallel with and spaced from the inner panel, the inner and outer panels being connected adjacent their upper edges by an upper panel, the door comprising:
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an opening in the inner panel; a first window mounted in the opening in the inner panel; a first light transmissive device disposed between the inner and outer panels, the first light transmissive device directing light received through the first window toward the upper panel; an opening in the upper panel; and a second window mounted in the opening in the upper panel through which light from the first light transmissive device can pass. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
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19. A door for the oven of a cooking range, the oven having a cavity and a marginal edge defining the boundary of the cavity, the door having an inner panel that in use closes the oven cavity and an outer panel spaced from the inner panel, the inner and outer panels being connected adjacent their upper edges by an upper panel, the door comprising:
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an opening in the inner panel at approximately the center of the inner panel; a first window in the form of a wide-angle lens mounted in the opening in the inner panel; a first light transmissive device disposed between the inner and outer panels, the first light transmissive device being in the form of a first, right-angled prism whose smaller faces are oriented perpendicular and parallel, respectively, to the path of the light received through the first window; an opening in the upper panel; a second window mounted in the opening in the upper panel; and a second light transmissive device disposed between the inner and outer panels adjacent the second window, the second light transmissive device including a mirror inclined at an angle of 45 degrees to the path of the light received from the first prism and a second prism disposed in the path of the light reflected from the mirror. - View Dependent Claims (20)
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21. A door for the oven of a cooking range, the oven having a cavity and a marginal edge defining the boundary of the cavity, the door having an inner panel that in use closes the oven cavity and an outer panel spaced from the inner panel, the inner and outer panels being connected adjacent their upper edges by an upper panel, the door comprising:
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an opening in the inner panel at approximately the center of the inner panel; a first window in the form of a wide-angle lens mounted in the opening in the inner panel; a first light transmissive device disposed between the inner and outer panels, the first light transmissive device being in the form of a right-angled prism whose smaller faces are oriented perpendicular and parallel, respectively, to the path of the light received through the first window; an opening in the upper panel; a second window mounted in the opening in the upper panel; a second light transmissive device disposed between the inner and outer panels adjacent the second window, the second light transmissive device including a mirror inclined at an angle of 45 degrees to the path of the light received from the first prism and a second, right-angled prism whose smaller faces are disposed perpendicular and parallel, respectively, to the path of the light reflected from the mirror; at least two transparent heat shields disposed between the inner and outer panels and intermediate the first prism and the mirror, the heat shields being spaced from each other and oriented at right angles to the path of the light reflected from the first prism; and first and second low voltage halogen lamps secured to the inner panel and positioned so as to illuminate the interior of the oven when the door is closed; the first window being disposed in the approximate center of the inner panel and the first and second lights being disposed on either side of the first window in approximate alignment therewith; electrical contacts carried by the inner panel and the marginal edge of the oven, the contacts engaging each other when the door is closed in order to conduct electrical current to the first and second lights; a plate disposed between the inner panel and the interior of the oven; a layer of microporous insulation disposed between the inner panel and the plate, the plate being connected to the inner panel such that the insulation is compressed between the plate and the inner panel; the edges of the plate being spaced inwardly from the edges of the inner panel; and a thermal gasket disposed about the periphery of the layer of insulation, the gasket extending beyond the edges of the plate, the gasket engaging the marginal edge of the oven when the door is closed, the gasket being compressed against the marginal edge of the oven by the inner panel.
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Specification