Fire barriers for the spaces formed by intersecting architectural expansion joints

1. A fire barrier, comprising:

a fire-barrier sized and shaped for installation into an accepting intersection-spaces formed by the intersection of at least two expansion-joint spaces that each occur between different sets of two adjacent spaced structural building units, said intersection creating a t-shaped, cross-shaped, L-shaped or v-shaped intersection-space,

said fire-barrier comprising:

a layer of woven refractory fabric heat-resistant to 2000° F. protective cloth cut, folded, and sewn to shape, overlain by

at least one refractory ceramic fiber insulation blanket layer cut to shape, and

at least one layer of intumescent material,

at least one layer of a mechanical support layer cut to shape and inserted between said protective cloth and said ceramic fiber insulation blanket, and

mounting means for fixedly mounting said barrier to the spaced structural building units,

said layers together forming a fire-barrier ready for one-step drop-in installation within said an accepting t-shaped, cross-shaped, L-shaped or v-shaped intersection space.

2. The fire-barrier, as recited in claim 1 , wherein said mounting means for affixing said layered fire-barrier to said structural building units further comprise flanges extending outwardly from each side of said fire-barrier that is immediately adjacent to said structural building units.

3. The fire-barrier, as recited in claim 2 , wherein said flanges comprise side edge portions of said mechanical support layer.

4. The fire-barrier, as recited in claim 2 , further comprising a plurality of fasteners used in conjunction with said flanges providing for said fire-barrier to be affixed to said structural building units.

5. The fire-barrier, as recited in claim 4 , wherein said plurality of fasteners further comprises a plurality of pins and washers or other fasteners that will perform the equivalent function used in conjunction with said flanges providing for said fire-barrier to be affixed to said structural building units.

6. The fire-barrier, as recited in claim 1 , wherein said fire-barrier is manufactured in a cross-shaped for installation into an accepting cross-shaped intersection-space created by the intersection of four expansion-joints.

7. The fire-barrier, as recited in claim 1 , wherein said fire-barrier is manufactured in a T-shape for installation into an accepting T-shaped intersection-space.

8. The fire-barrier, as recited in claim 1 , wherein said fire-barrier is manufactured in a planar L-shape for installation into a planar accepting right-angled intersection-space of two expansion-joints.

9. The fire-barrier, as recited in claim 1 , wherein said fire-barrier is manufactured in a non-planar L-shape for fitting into a non-planar intersection space created by the intersection of two architectural expansion-joints at approximately right angles.

10. The fire-barrier, as recited in claim 9 , wherein said non-planar right-angled intersection of two expansion-joints further comprises a spaced-intersection of a vertically oriented expansion-joint space with a horizontally oriented expansion-joint space.

11. The fire-barrier, as recited in claim 1 , wherein said fire-barrier further comprises:

a fire-barriers sized and shaped for installation into an accepting intersection-spaces formed by the intersection of expansion joint spaces to form right angled, obtuse angled, or acute angled intersection-expansion-joint spaces.

12. A method for making fire-barriers, comprising:

providing for a fire-barriers sized and shaped for installation into an accepting intersection-spaces formed by the intersection of at least two expansion-joint spaces that each occur between different sets of two adjacent spaced structural building units, said intersection creating a t-shaped, cross-shaped, L-shaped or v-shaped intersection-space,

providing for each fire-barrier to be a layered fire-barrier comprising:

a layer of woven refractory fabric heat-resistant to 2000° F. protective cloth cut, folded, and sewn to shape overlain by,

at least one refractory ceramic fiber insulation blanket layer,

at least one layer containing intumescent material,

at least one layer of a mechanical support layer cut to shape and inserted between said protective cloth and said ceramic fiber insulation blanket,

said layers together forming a fire-barrier ready for one-step drop-in installation within an accepting t-shaped, cross-shaped, L-shaped or v-shaped intersection-space.

13. The method, as recited in claim 12 , wherein said method further comprises:

affixing mounting means flanges extending outwardly from each side of said fire-barrier that is immediately adjacent to said structural building units to said structural building units.

14. The method, as recited in claim 13 , wherein said flanges comprise side edge portions of said mechanical support layer.

15. A method for installing a fire-barriers sized and shaped for installation into accepting intersection-spaces formed by the intersection of at least two expansion-joint spaces that occur between two adjacent spaced structural building units, said intersection creating a t-shaped, cross-shaped, L-shaped or v-shaped intersection-space each of said expansion-joint spaces defined by a plane, said plane defined by a set of three non-colinear points with each point defined by a set of x, y, z coordinates from the same coordinate system with no two of said coordinate sets being identical,

said method comprising:

providing for said fire-barrier to be a layered fire-barrier comprising:

a layer of woven refractory fabric heat-resistant to 2000° F. protective cloth cut, folded, and sewn to shape overlain by,

at least one refractory ceramic fiber insulation blanket layer,

at least one layer of intumescent material,

at least one layer of a mechanical support layer cut to shape and inserted between said protective cloth and said ceramic fiber insulation blanket,

said layers together forming a fire-barrier ready for one-step drop-in installation within an accepting t-shaped, cross-shaped, L-shaped or v-shaped intersection-space, and

providing mounting means for fixedly mounting said barrier to structural building units forming said expansion-joints, and

mounting said barrier to structural building units.

16. The method, as recited in claim 15 , further comprising:

manufacturing said fire-barrier in a cross-shaped for installation into an accepting cross-shaped intersection-space created by the intersection of four expansion-joints.

17. The method, as recited in claim 15 , further comprising:

manufacturing said fire-barrier in a T-shape for fitting into a planar approximately right-angled intersection-space of three expansion-joint spaces.

18. The method, as recited in claim 15 , further comprising:

manufacturing said fire-barrier in an L-shape for fitting into a planar approximately right-angled intersection-space created by the intersection of two expansion-joint spaces.

19. The method, as recited in claim 15 , further comprising manufacturing said fire-barrier in an L-shape for fitting into a non-planar approximately right-angled intersection-space created by the spaced-intersection of two expansion-joint spaces at approximately right-angles.

20. The method, as recited in claim 15 , wherein said non-planar approximately right-angled intersection-space created by the intersection of two expansion-joints further comprises an spaced-intersection of a vertically oriented expansion-joint space with a horizontally oriented expansion-joint space.