Intumescent cover for a poke-through assembly
First Claim
1. A poke-through assembly for installation in a hole in a floor structure, said floor structure defining a floor in a first working environment and a ceiling in a second working environment, said poke-through assembly comprising:
- an intumescent member disposed at least partially between said floor and said ceiling;
a base plate for supporting said at least one intumescent member, said plate disposed below said intumescent member for limiting the expansion of said intumescent member toward or into said second working environment; and
an enclosure fixedly secured directly to said base plate, said enclosure extending vertically from said base plate and circumferentially surrounding at least a lower portion of said intumescent member.
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Accused Products
Abstract
One aspect of the present invention provides a poke-through assembly for installation in a hole in a floor structure. The floor structure defines a floor in a first working environment and a ceiling in a second working environment. The poke-through assembly includes at least one intumescent member, a base plate and an intumescent enclosure. The intumescent member is disposed at least partially between the floor of the first working environment and the ceiling of the second working environment. The base plate supports and is disposed below the intumescent member for limiting the expansion of the intumescent member toward or into the second working environment. The intumescent cover supports the intumescent member and circumferentially surrounds at least a portion of the intumescent member, wherein expansion of the intumescent member is impeded by the cover.
55 Citations
20 Claims
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1. A poke-through assembly for installation in a hole in a floor structure, said floor structure defining a floor in a first working environment and a ceiling in a second working environment, said poke-through assembly comprising:
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an intumescent member disposed at least partially between said floor and said ceiling; a base plate for supporting said at least one intumescent member, said plate disposed below said intumescent member for limiting the expansion of said intumescent member toward or into said second working environment; and an enclosure fixedly secured directly to said base plate, said enclosure extending vertically from said base plate and circumferentially surrounding at least a lower portion of said intumescent member. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A poke-through assembly for installation in a hole in a floor structure, said floor structure defining a floor in a first working environment and a ceiling in a second working environment, said poke-through assembly comprising:
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an upper frame; an intumescent member disposed below said upper frame; and an intumescent cover supporting a bottom surface of said intumescent member, said intumescent cover circumferentially surrounding at least a lower portion of said intumescent member, wherein at least an upper portion of said intumescent member protrudes beyond an upper circumferential edge of said intumescent cover, said upper portion extending continuously from the circumferentially surrounded the lower portion. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification