Remotely activatable seal
First Claim
1. An improved expandable seal, comprising:
- an elongated flexible carrier incorporating means for affixing a seal in a gap between opposing surfaces;
a resilient cellular core;
a bead of intumescent material coextensive with the cellular core;
a flexible outer protective liner covering the cellular core and the intumescent material; and
,means disposed in the seal for activating the intumescent material responsive to a remotely generated signal, whereby the gap may be sealed by expansion of the intumescent material responsive to an alarm condition at a location remote from the gap.
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Accused Products
Abstract
An improved fire seal comprises: an elongated flexible carrier incorporating structure for affixing the seal in a gap between opposing surfaces; a resilient cellular core; a bead of intumescent material; a flexible outer protective liner covering the cellular core and the intumescent bead; and, a remotely actuatable heat source disposed in the seal for activating the intumescent material responsive to a remotely generated signal, whereby the gap may be sealed by expansion of the intumescent material responsive to an alarm condition in a location remote from the gap. A system for sealing gaps in doorways, windows and the like comprises: a plurality of fire seals as described, affixed in gaps of the doorways, windows and the like; a plurality of detectors for sensing alarm conditions; a signal generator for activating the intumescent material responsive to alarm conditions sensed by any of the plurality of detectors; and, a controller for the signal generator, for selectively activating the intumescent material responsive to sequences in detection of alarm conditions by any of the plurality of detectors, whereby the gaps may be effectively sealed against penetration of smoke, noxious gases and the like prior to fire-like ambient conditions adjacent the gaps.
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Citations
19 Claims
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1. An improved expandable seal, comprising:
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an elongated flexible carrier incorporating means for affixing a seal in a gap between opposing surfaces; a resilient cellular core; a bead of intumescent material coextensive with the cellular core; a flexible outer protective liner covering the cellular core and the intumescent material; and
,means disposed in the seal for activating the intumescent material responsive to a remotely generated signal, whereby the gap may be sealed by expansion of the intumescent material responsive to an alarm condition at a location remote from the gap. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A system for sealing gaps in doorways, windows and the like, comprising:
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a plurality of seals affixed in gaps in doorways, windows and the like, the seals having longitudinally extending beads of intumescent material for sealing the gaps and means for activating the intumescent material responsive to a remotely generated signal; at least one detector for sensing an alarm condition; and
,means for generating the signal to activate the intumescent material responsive to the at least one detector, whereby the gaps may be effectively sealed against penetration of smoke, noxious gases and the like in the absence of fire-like ambient conditions adjacent to the gaps. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18)
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19. An improved expandable seal, comprising;
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an elongated carrier; a bead of intumescent material disposed on the carrier in an unexpanded condition; and
,means for activating the intumescent material responsive to a remotely generated signal, whereby a gap may be sealed against penetration of gases and smoke responsive to an alarm condition at a location remote from the gap.
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Specification