Oven door

Claim 2

A hollow heat insulating door for a cooking oven, comprising: a peripheral closed frame comprising a marginal wall and spaced apart inner and outer panels having aligned viewing openings, the opening in said outer panel being vertically substantially larger than the opening in the inner panel; an inner glass pane on the inner panel spanning the inner viewing opening; an outer glass pane on the outer panel spanning the outer viewing opening; means sealing said inner glass pane to its said panel, said panels and panes providing an interior insulating substantially dead air space; and a heat absorbing baffle in said dead air space for limiting heat transfer through the door, said baffle having an upper portion spaced outwardly of said inner panel above said inner glass pane and spaced inwardly of the upper portion Of the outer glass pane and defining an opening providing unimpeded viewing of the oven through said aligned panel viewing openings.

Claim 3

The door of claim 1 wherein said outer glass pane is semi-opaque with interior artificial light shining therethrough but outer natural light being substantially barred.

Claim 4

The door of claim 1 wherein said heat absorbing baffle comprises a black coated steel sheet.

Claim 5

The door of claim 3 wherein said heat absorbing baffle comprises a black oxide coated steel sheet.

Claim 6

The door of claim 1 wherein said outer panel is of narrow width about its opening compared to the width of said inner panel about its opening.

Claim 7

The door of claim 5 wherein said inner glass pane is of considerably smaller area than said outer glass pane.

Claim 8

The door of claim 1 wherein each said panel is provided with resilient means locating each panel with respect to its glass pane adjacent to said inner and outer openings.

Claim 9

The door of claim 1 wherein said heat absorbing baffle comprises side portions and a top portion having inner edges substantially coextensive with the corresponding outer edges of the sides and top of said inner glass pane and has a projecting flange underlying and supporting the bottom of said inner glass pane.

Claim 10

A hollow heat insulating door for a cooking oven, comprising: a peripheral closed frame comprising a marginal wall and spaced apart inner and outer panels having aligned viewing openings, the opening in said outer panel being vertically substantially larger than the opening in the inner panel; an inner glass pane on the inner panel spanning the inner viewing opening; an outer glass pane on the outer panel spanning the outer viewing opening, said outer pane being substantially larger than said inner pane and being semi-opaque with interior artificial light shining therethrough but outer natural light being substantially barred; means sealing one of said panes to its said panel, said panels and panes providing an interior insulating dead air space; and a heat absorbing baffle in said dead air space for limiting heat transfer through the door, said heat absorbing baffle comprising a black coated steel sheet having an upper portion spaced outwardly of said inner panel above said inner glass pane and spaced inwardly of the upper portion of the outer glass pane and defining an opening providing unimpeded viewing of the oven through said aligned panel viewing openings.

Claim 11

A hollow heat insulating door for a cooking oven, comprising: a peripheral closed frame comprising a marginal wall and spaced apart inner and outer panels having aligned viewing openings, the opening in said outer panel being vertically substantially larger than the opening in the inner panel; an inner glass pane on the inner panel spanning the inner viewing opening; an outer glass pane on the outer panel spanning the outer viewing opening, said outer pane being substantially larger than said inner pane and being semi-opaque with interior artificial light shining therethrough but outer natural light being substantially barred; means sealing one of said panes to its said panel, said panels and panes providing an interior insulating dead air space; and a heat absorbing baffle in said dead air space for limiting heat transfer through the door, said heat absorbing baffle comprising a black coated steel sheet having an upper portion spaced outwardly of said inner panel above said inner glass pane and spaced inwardly of the upper portion of the outer glass pane and defining an opening providing unimpeded viewing of the oven through said aligned panel viewing openings.

Claim 12

The door of claim 8 wherein said outer panel is of narrow width about its opening compared to the width of said inner panel about its opening, said inner glass pane is of considerably smaller extent than said outer glass pane and with resilient means sealing one of said panels to its glass pane adjacent to said inner and outer openings.

Claim 13

The door of claim 9 wherein said heat absorbing baffle comprises side portions and a top portion substantially coextensive with the corresponding sides and top of said inner glass pane and a projecting flange underlying and supporting the bottom of said inner glass pane.

Claim 14

A hollow heat insulating door for a cooking oven, comprising: a peripheral frame; an inner panel; an inner glass pane; an outer glass pane; means sealing said panel and glass panes to the frame to provide an interior insulating substantially dead air space; and means for reducing heat flow from the inner panel to the outer pane through said space comprising a black heat absorbing thermally conductive baffle interposed between preselected portions of said inner panel and said outer pane.

Claim 15

A hollow heat insulating door for a cooking oven, comprising: a peripheral frame; an inner panel; an inner glass pane; an outer glass pane; means sealing said panel and glass panes to the frame to provide an interior insulating substantially dead air space; and means for reducing heat flow from the inner panel to the outer pane through said space comprising a black heat absorbing thermally conductive baffle interposed between preselected portions of said inner panel and said outer pane.

Claim 16

The door of claim 12 wherein said heat absorbing baffle comprises a black coated steel sheet.

Claim 17

The door of claim 12 wherein said heat absorbing baffle comprises a black oxide coated sheet.

Claim 18

The door of claim 12 wherein said heat absorbing baffle comprises a black oxide coated steel sheet.

Claim 19

A hollow heat insulating door for a cooking oven, comprising: a peripheral closed frame comprising a marginal wall and spaced aPart inner and outer panels having aligned viewing openings; an inner glass pane on the inner panel spanning the inner viewing opening; an outer glass pane on the outer panel spanning the outer viewing opening; means sealing said inner glass pane to its said panel, said panels and panes providing an interior insulating substantially dead air space; and a black heat absorbing baffle interposed between preselected portions of said inner panel and said outer pane for limiting heat transfer through the door.

Claim 20

A hollow heat insulating door for a cooking oven, comprising: a peripheral closed frame comprising a marginal wall and spaced aPart inner and outer panels having aligned viewing openings; an inner glass pane on the inner panel spanning the inner viewing opening; an outer glass pane on the outer panel spanning the outer viewing opening; means sealing said inner glass pane to its said panel, said panels and panes providing an interior insulating substantially dead air space; and a black heat absorbing baffle interposed between preselected portions of said inner panel and said outer pane for limiting heat transfer through the door.

Claim 21

The door of claim 16 wherein said heat absorbing baffle comprises a black coated steel sheet.

Claim 22

The door of claim 16 wherein said heat absorbing baffle comprises a black oxide coated sheet.

Claim 23

The door of claim 16 wherein said heat absorbing baffle comprises a black oxide coated steel sheet.