US3766958A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fire protection device for building structure
Assignee: Individual
•
Filing: 1971-06-18
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Granted: 1973-10-23
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Expires: 1991-06-18
Abstract
Abstract A fire protection device is described for unfurling a fire resistant curtain over the roof of a building structure to protect the structure from an adjacent fire.
Inventors
- 👤 N Mitchell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 18:43
CPC Classifications
E; E04; E04B; E04B1/00; E04B1/62; E04B1/92; E04B1/94; E04B1/941; A; A62; A62C; A62C2/00; A62C2/06; A62C2/10
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
201 words
In combination with a building structure having a roof surface, a fire protection device for protecting the roof surface of the building structure from catching fire from sparks or flames generated by a fire adjacent the building, comprising: an elongated enclosure mounted to the building structure adjacent the roof surface; a fire resistant curtain of sufficient size to cover at least a major portion of the roof surface furled in the elongated enclosure for storage; a plurality of support wires extending over and spaced above the roof surface for supporting the curtain above the roof surface; in which at least one of the wires is movably mounted about a pulley positioned at a remote roof location from the elongated enclosure with one end of the movable wire being connected to the curtain and the other end extending from the pulley to the elongated enclosure; an operable wire reeling means connected to the other end of the movable wire at the elongated housing for winding the movable wire when operated to unfurl the curtain from the elongated enclosure and pull the curtain over said major roof portion with the curtaIn being supported above the roof by the support wires and movable wire.
Claim 2
Dependent Claim
201 words
In combination with a building structure having a roof surface, a fire protection device for protecting the roof surface of the building structure from catching fire from sparks or flames generated by a fire adjacent the building, comprising: an elongated enclosure mounted to the building structure adjacent the roof surface; a fire resistant curtain of sufficient size to cover at least a major portion of the roof surface furled in the elongated enclosure for storage; a plurality of support wires extending over and spaced above the roof surface for supporting the curtain above the roof surface; in which at least one of the wires is movably mounted about a pulley positioned at a remote roof location from the elongated enclosure with one end of the movable wire being connected to the curtain and the other end extending from the pulley to the elongated enclosure; an operable wire reeling means connected to the other end of the movable wire at the elongated housing for winding the movable wire when operated to unfurl the curtain from the elongated enclosure and pull the curtain over said major roof portion with the curtaIn being supported above the roof by the support wires and movable wire.
Claim 3
Dependent Claim
44 words
A fire protection device as defined in claim 1 wherein the curtain has a plurality of spaced grommeted holes therein for threadably receiving at least one of the wires as the curtain is spread over the roof to secure the curtain to the wire.
Claim 4
Dependent Claim
33 words
A fire protection device as set out in claim 1 further comprising a wire guide member extending upward from the enclosure for slidably receiving and supporting the movable wire above the roof surface.
Claim 5
Dependent Claim
66 words
A fire protection device as set out in claim 3 wherein the wire guide member includes a tube having a curved upper end that projects toward the remote location in which the curved upper end has a bore to slidably receive the other end of the movable wire and a top groove formed therein to slidably receive and support the one end of the movable wire.
Claim 6
Dependent Claim
63 words
A fire protection device as set out in claim 1 wherein the elongated enclosure has two elevationally spaced compartments with the roof curtain located in the upper compartment and a furled side curtain located in the lower compartment, said lower compartment having a bottom door that is openable to allow the side curtain to gravitationally unfurl along a side of the building structure.
Claim 7
Dependent Claim
74 words
A fire protection device as set forth in claim 1 wherein the elongated enclosure is affixed to the building along one edge of the roof and inset partially underneath the roof and wherein the elongated enclosure has a double hinged lid means normally overlying the furled curtain and enclosing the elongated enclosure for enabling the enclosure to be opened as the curtain is unfurled even though the enclosure is inset partially underneath the roof.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-10-22 | 1977-04-23 | 1977-10-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-10-22 | 1981-04-23 | 1981-10-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-10-22 | 1985-04-23 | 1985-10-23 | $7700.00 | Window Closed / Lapsed |