Firebox door arrangement

A two pane door for closing a firebox opening and the like comprising:

• an inner, heat resistant glass pane;
• an outer glass pane having a periphery defined by vertically-extending right hand and left hand edge surfaces contiguous with longitudinally-extending top and bottom edge surfaces;
• a spacer frame having vertically-extending right hand and left hand channel portions and longitudinally extending top and bottom channel portions, said top and bottom channel portions connected at their ends to the ends of said right and left hand portions to define a contiguous, open spacer framework, each channel portion of said spacer frame having an inner face surface adapted to face said opening, and an outer face surface removed from said opening, and an inner edge surface adjacent the interior opening formed by said spacer frame and an outer edge surface defining the exterior surface of said spacer frame;
• inner sealing means for thermally sealing said inner glass pane to said inner face surfaces of said spacer frame;
• outer sealing means for thermally sealing said outer glass pane to said outer frame face surfaces with said top and bottom edge surfaces of said outer pane generally flush and aligned with said outer edge surfaces of said top and bottom channel portions of said spacer frame;
• said inner glass pane, said outer glass pane and said spacer frame having an outer edge peripheral configuration which is generally rectangular irrespective of the shape of said glass panes;
• said outer sealing means further includes each outer face surface having a contiguous groove formed therein, said groove in each channel portion in communication with said groove in an adjacent channel portion, a fibrous sealing cord disposed within said groove extending above said face surface a predetermined distance, and said outer retainer means positioned only over said right and left hand channel portions and biasing said outer glass pane into continuous sealing contact with said fibrous sealing cord;
• said outer retainer means further including right and left hand decorative retainer strips extending a distance approximately equal that of said right and left hand channel portions of said spacer frame, each decorative retainer strip having a top and bottom bend tab portion at their ends and fastening means for securing said top and bottom tab portions to said outer edge surfaces of said top and bottom channel portions, respectively.

A two pane door for closing a firebox opening and the like comprising:

• an outer glass pane having a periphery defined by vertically-extending right hand and left hand edge surfaces contiguous with longitudinally extending top and bottom edge surfaces;
• a spacer frame having vertically-extending right hand and left hand channel portions and longitudinally-extending top and bottom channel portions, said top and bottom channel portions connected at their ends to the ends of said right and left hand portions to define a contiguous, open spacer frame, each channel portion of said spacer frame having an inner face surface adapted to face said firebox opening, an outer face surface removed from said opening, an inner edge surface defining the interior surface of said spacer frame and an outer edge surface defining the exterior surface of said spacer frame;
• inner sealing means for thermally sealing said inner glass pane to said inner face surfaces of said spacer frame;
• outer sealing means for thermally sealing said outer glass pane to said outer face surfaces with said top and bottom edge surfaces of said outer pane generally flush and aligned with said outer edge surfaces of said top and bottom channel portions of said spacer frame, said outer sealing means including outer retainer means overlying only at least portions of said right hand and said left hand portions of said spacer frame to effect said thermal seal while exposing a substantial portion of said top and bottom edge surfaces of said outer glass pane whereby said top and bottom edge surfaces of said outer glass pane defines the top and bottom of said door;
• said inner glass pane, said outer glass pane and said spacer frame having an outer edge peripheral configuration which is generally rectangular irrespective of the shape of said glass panes;
• said outer sealing means further includes each outer face surface of each channel portion having a contiguous groove formed therein, said groove in each channel portion in communication with said groove in an adjacent channel portion, a fibrous sealing cord disposed within said groove extending above said face surfaces a predetermined distance, and said outer retainer means biasing said outer glass pane into contiguous sealing contact with said fibrous sealing cord;
• said inner glass sealing means includes each inner face surface of each channel portion having an indentation formed therein, each indentation extending from said inner edge surface of each channel portion to a position spaced from said outer edge surface of each channel portion, each indentation in communication and aligned with adjacent indentation;
• a U-shaped fibrous seal positioned about the edge of said inner glass pane, one leg of said U-shaped seal to thermally seal said inner pane to said spacer frame thereby defining a sealed air space within said spacer frame between said inner glass pane and said outer glass pane, said inner retainer means includes a rigid right hand and left hand inner retainer strip and a rigid tip and bottom inner retainer strip, said right and left hand inner retainer strips abutting at their ends with the ends of said top and bottom inner retainer strips, each inner retainer strip contacting said other leg of said U-shaped seal;
• fastening means for securing each inner retainer strip to its respective inner face surface whereby a thermal seal is established by said U-shaped seal being compressed between said indentation and said inner retainers, each inner retainer strip including means formed and extending therefrom to seal said door to said firebox opening when said door is closed;
• and
• hinge and latch means affixed to said door whereby said door can be mounted in said opening in a movable and lockable manner.

An insulated sealed door in combination with a generally rectangular firebox opening for a fireplace insert, free-standing woodburning stove and the like comprising:

• generally vertically-extending, left and right hand seal support members positioned inside of said opening at each end thereof and generally parallel to one another, generally horizontally-extending, top and bottom seal support members generally parallel to another and secured to the top and bottom of said opening, said top and bottom seal support member secured at their ends to the ends of said left and right hand seal support members;
• a door seal disposed within each seal support member;
• generally rectangular inner and outer, heat resistant glass panes, said outer glass pane larger than said inner glass pane;
• a generally rectangular spacer frame positioned between said inner and outer glass panes, said frame defined by a left hand a right hand vertically-extending channel portion, and a top and a bottom horizontally-extending channel portion, said top and bottom channel portions connected at their ends to the ends of said left hand and said right hand channel portion having an inner face surface adjacent said opening, an outer face surface removed from said opening, an inner edge surface defining the interior of said spacer frame and an outer edge surface defining the exterior of said spacer frame;
• inner pane sealing means for sealing said inner glass pane to said inner face surfaces and also sealing said door to said seal support members when said door is closed, said inner glass pane positioned to be adjacent said inner edge surfaces of said top and bottom horizontal channel portions and removed from said outer edge surfaces of said top and bottom horizontal channel portions;
• outer pane sealing means for sealing said outer glass pane to said outer face surfaces, said outer glass pane positioned closely adjacent said outer edge surfaces of said top and bottom channel portions and removed from said inner edge surfaces of said top and bottom channel portions;
• hinge means secured to one of said vertically-extending channel portions and one of said vertically-extending seal support members to permit said frame to swing away from said opening in an open position and into said opening in a closed position, said outer glass pane being approximately flush with said opening in said closed position;
• latch means for securing said door when said door is closed and insuring the sealing of said door to said opening by said inner pane sealing means.