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US 6,981,351 B2Granted
Fire rated door with a surrounding door frame
AssigneeDorma GmbH + Co. KG
InventorWalter Degelsegger
Life of this patent
Estimating the term…
Abstract
A fire rated door with a surrounding door frame, consisting of a glass pane, which is embedded between its circumferential metal frame, said fire rated door consists of at least one door leaf realized from two glass panes spaced apart by means of profiles, whereby the glass panes extend almost as far as to the border of the door leaf and a transparent fire protection material is included between the spaced glass panes.
Claims10
A fire rated door assembly that gives an architectural glazing construction appearance, said door assembly comprising:
- a door jamb;
- said door jamb comprising a material to provide said door jamb with a fire rating and thus with the capability to withstand fire a predetermined time with a predetermined fire temperature on a fire exposed side of said door jamb and a predetermined maximum temperature on the non-fire exposed side of said door jamb;
- at least one door leaf;
- said at least one door leaf being configured to be mounted at said door jamb and to open and to close;
- said door jamb being configured to enclose at least:
- the upper edge of said at least one door leaf, and one vertical edge of said at least one door leaf;
- and
- said at least one door leaf comprising:
- a frame;
- a pair of glass panes supported by said frame;
- said pair of glass panes comprising a first glass pane on the fire exposed side of said door leaf and a second glass pane on the non-fire exposed side of said door leaf, said first and second glass panes forming a space between them;
- said pair of glass panes being disposed in said frame to provide a glazing construction appearance by extending substantially over the full width and height of said frame;
- said frame comprising a profile structure to hold said first and second glass panes;
- said profile structure being configured with retaining portions in conformity with the thickness of said first glass pane on the fire exposed side and said second glass pane on the non-fire exposed sides of said door leaf;
- said pair of glass panes being disposed to extend substantially fully to the edges of said at least one door leaf to thereby provide a glazing construction appearance;
- a transparent fire protection material configured to provide said at least one door leaf with a fire rating and thus with the capability to withstand fire for a predetermined time with a predetermined fire temperature on the fire exposed side of said at least one door leaf and a predetermined maximum temperature on the non-fire exposed side of said at least one door leaf;
- said transparent fire protection material being disposed between said pair of glass panes in said space;
- at least one of said profiles being configured with at least one rounded exterior edge;
- said at least one rounded edge comprising on either side of said door leaf a profile projection;
- and
- each profile projection being disposed to engage a corresponding glass pane to edge at least partially cover a corresponding edge of each of said first and second glass panes.
18 more elements
A fire rated door assembly that gives an architectural glazing construction appearance, said door assembly comprising:
- a door jamb;
- said door jamb comprising a material to provide said door jamb with a fire rating and thus with the capability to withstand fire a predetermined time with a predetermined fire temperature on a fire exposed side of said door jamb and a predetermined maximum temperature on the non-fire exposed side of said door jamb;
- and
- at least one door leaf;
- said at least one door leaf being configured to be mounted at said door jamb and to open and to close;
- said door jamb being configured to enclose at least:
- the upper edge of said at least one door leaf, and one vertical edge of said at least one door leaf;
- said at least one door leaf comprising:
- a frame;
- a pair of glass panes supported by said frame;
- said pair of glass panes comprising a first glass pane on the fire side exposed side of said door leaf and a second glass pane on the non-fire exposed side of said door leaf, said first and second glass panes forming a space between them;
- said pair of glass panes being disposed in said frame to provide a glazing construction appearance by extending substantially over the full width and height of said frame;
- said frame comprising a profile structure to hold said first and second glass panes;
- said profile structure being configured with retaining portions in conformity with the thickness of said first glass pane on the fire exposed side and said second glass pane on the non-fire exposed sides of said door leaf;
- said pair of glass panes being disposed to extend substantially fully to the edges of said at least one door leaf to thereby provide a glazing construction appearance;
- and
- a material to provide said at least one door leaf with a fire rating and thus with the capability to withstand fire for a predetermined time with a predetermined fire temperature on the fire exposed side of said at least one door leaf and a predetermined maximum temperature on the non-fire exposed side of said at least one door leaf;
- said door jamb comprising a composite profile;
- said composite profile including an intermediate fire protection seal directed to the adjacent edge of said door leaf;
- said intermediate fire protection seal of said composite profile comprising an intumescent material to intumesce at a predetermined temperature;
- the fire rated efficacy of said door assembly being achieved by a first fire protection seal disposed in said profile structure and a second fire protection seal disposed in at least one adjacent edge of said composite profile;
- and
- said fire protection seal comprising an intumescent material to intumesce at a predetermined temperature.
20 more elements
Dependencies are inferred from the claim text.