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US 7,000,550 B1Granted
Ablative blast resistant security door panel
OwnerMichael C. Mandallinventor
Life of this patent
Estimating the term…
Abstract
Penetration resistant door panel comprises a plurality of spars having a series of holes therethrough and sandwiched between an outer skin and a rear skin. Preferably there are two series of holes in each spar that are staggered with respect to each other. The holes permit outer edges of the spars to be ablated by an explosion blast while dissipating energy to preserve the integrity of rear regions of the spars.
Claims21
A blast resistant door panel comprising:
- an outer skin,
- a rear skin positioned substantially parallel to and spaced from the outer skin and
- a plurality of spaced apart non intersecting spars each extending between said outer skin and said rear skin,
- said spars being characterized by having a series of holes through each of the spars along the length of the spar.
1 more element
A blast resistant door panel comprising:
- an outer skin,
- a rear skin positioned substantially parallel to and spaced from the outer skin and
- a plurality of spaced spars each extending between said outer skin and said rear skin,
- said spars being characterized by having a first series of holes therethrough closer to the outer skin of the panel and a second series of holes therethrough closer to the rear skin of the panel.
1 more element
The combination of:
- a blast resistant door panel having
- an outer skin,
- a rear skin positioned substantially parallel to and spaced from the outer skin and
- a plurality of spaced spars each extending between said outer skin and said rear skin,
- a door frame assembly having a slot therein and
- a hinge connecting the panel to the door frame assembly,
- at least one of said spars having a locking tab extending from an end thereof into the slot in the doorframe assembly when the panel is in its closed position,
- said spars being characterized by having a series of holes through each of the spars along the length of the spar.
5 more elements
A blast resistant door panel comprising:
- an outer skin,
- a rear skin positioned substantially parallel to and spaced from the outer skin and
- a plurality of spaced spars each extending between said outer skin and said rear skin,
- said spars being characterized by having a series of holes through each of the spars along the length of the spar,
- a plurality of connective tabs along an edge of at least one of said spars, and
- a plurality of openings in said outer skin corresponding to and adapted to receive the connecting tabs on said one spar.
3 more elements
A blast resistant door panel comprising:
- an outer skin,
- a rear skin positioned substantially parallel to and spaced from the outer skin and
- a plurality of spaced spars each extending between said outer skin and said rear skin,
- said spars being characterized by having a series of holes through each of the spars along the length of the spar,
- a plurality of connecting tabs along an edge of each of said spars, and
- a plurality of openings in said rear skin corresponding to and adapted to receive the connecting tabs on each of said spars.
3 more elements
A blast resistant door panel comprising:
- an outer skin,
- a rear skin positioned substantially parallel to and spaced from the outer skin and
- a plurality of spaced spars each extending between said outer skin and said rear skin,
- said spars being characterized by having a series of holes through each of the spars along the length of the spar,
- a plurality of connecting tabs along opposite edges of at least one of said spars, and
- a plurality of openings in said outer skin and said rear skin corresponding to and adapted to receive the connecting tabs on said at least one spar.
3 more elements
A blast resistant door panel comprising:
- an outer skin,
- a rear skin positioned substantially parallel to and spaced from the outer skin and
- a plurality of spaced spars each extending between said outer skin and said rear skin,
- said spars being characterized by having a series of holes through each of the spars along the length of the spar,
- a plurality of connecting tabs along opposite edges of each of said spars, and
- a plurality of openings in said outer skin and said rear skin corresponding to and adapted to receive the connecting tabs on said spars.
3 more elements
Dependencies are inferred from the claim text.