Insert device for cables
First Claim
1. An insert device to be positioned in a structural opening, said opening having spaced apart ends, for connection of cables from a cable source, through the insert device and to a service head positioned across an end of the structural opening, said insert device comprising:
- a. an insert housing proportioned to be positioned in said structural opening;
b. said housing comprising a plurality of sections;
c. fire retarding means positioned intermediate said housing sections and separating the same;
d. means connecting said housing sections and positioning said fire retarding means intermediate and separating the sections;
e. said fire retarding means foaming on occurrence of excess heat or fire, to expand and seal said housing sections in the structural opening.
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Reexamination
Accused Products
Abstract
This invention relates to an insert device for cables adapted to be positioned in structural openings, such as, for example in holes drilled into or formed in floors and other planar surfaces of structures such as buildings, to facilitate connection of power lines, cables and wires from a source into a cable receiving junction box at the underside of the floor and through the insert device and thence to a service head at the upper face of the floor, for connection of various accessory devices thereto, fire retarding means being provided to seal the device in said floor opening and to seal said cables therein, said fire retarding means automatically foaming to effectuate the sealing action described, on occurrence of fire or excessive temperatures, to effectively so seal the assembly. The cables on such occurrence, are thus sealed in said insert device in air-tight, spaced relation to each other; spread of fire and excess heat therethrough will be automatically prevented, and the fire protective rating of the floor wherein the insert device is so mounted and used will be substantially equivalent to the original rating of the floor.
43 Citations
16 Claims
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1. An insert device to be positioned in a structural opening, said opening having spaced apart ends, for connection of cables from a cable source, through the insert device and to a service head positioned across an end of the structural opening, said insert device comprising:
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a. an insert housing proportioned to be positioned in said structural opening; b. said housing comprising a plurality of sections; c. fire retarding means positioned intermediate said housing sections and separating the same; d. means connecting said housing sections and positioning said fire retarding means intermediate and separating the sections; e. said fire retarding means foaming on occurrence of excess heat or fire, to expand and seal said housing sections in the structural opening. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. An insert device to be positioned in a structural opening, said opening having spaced apart ends, for connection of cables from a cable source, through the insert device and to a service head positioned across an end of the structural opening, said insert device comprising:
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a. an insert housing proportioned to be positioned in said structural opening, b. said housing comprising a plurality of sections, c. fire retarding means positioned intermediate said housing sections and separating the same, d. means passing through said housing sections with said fire retarding means intermediate the same and connecting said sections together with said fire retarding means therebetween, and e. said fire retarding means foaming on occurrence of excess heat or fire, to expand and seal said housing sections in the structural opening. - View Dependent Claims (9)
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10. An insert device to be positioned in a structural opening, said opening having spaced apart ends, for connection of cables from a cable source, through the insert device and to a service head positioned across an end of the structural opening, said insert device comprising:
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a. an insert housing proportioned to be positioned in said structural opening; b. fire retarding means comprising an axially elongated member of criss-cross transverse cross section positioned in said housing and having a medial axially elongated opening therethrough, for passage of cables therethrough, c. said fire retarding means foaming on occurrence of heat or fire, to expand and seal said cables in said housing.
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11. In an insert device to be positioned in a structural opening, said opening having spaced apart ends, for connection of cables from a cable source, through the insert device and to a service head positioned across an end of the structural opening, said insert device comprising:
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a. an insert housing proportioned to be positioned in said structural opening; b. fire retarding means positioned in said housing comprising an axially elongated member of criss-cross transverse cross-section, formed with an elongated axial opening therein, for passing cables therethrough; c. said fire retarding means foaming on occurrence of excess heat or fire, to expand and seal said cables in the housing. - View Dependent Claims (12, 13, 14, 15, 16)
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Specification