US3847246A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Emergency fire exit means
Assignee: Individual
•
Filing: 1972-08-29
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Granted: 1974-11-12
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Expires: 1992-08-29
Abstract
Abstract A emergency fire escape window exit means to be mounted to a wall of a building below a window, or attached in combination with a window or a door. A platform is pivotally mounted to the door, window or wall. A ladder is connected to the platform. When the platform is folded up, it provides an enclosure for the folded ladder. When the enclosure is opened, the platform falls pivotally to a horizontal position. The platform has a trap door in it, operating on hinges that also allow it to pivot downward and release an emergency ladder attached to it. The ladder descends to the ground. The emergency fire exit means can operate manually or automatically having an alarm means when tripped open. The combination with a window or door incorporate a swing sill and a drop sill attachment.
Inventors
- 👤 P Banner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 07:07
CPC Classifications
E; E06; E06C; E06C9/00; E06C9/06; E06C9/08; E06C9/10
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
80 words
A emergency fire exit means comprising in combination a window and fire escape means including a frame, a movable sill, a platform pivotally mounted on said frame, a ladder mounted on said platform, a means for releasing said ladder, a movable trap door mounted in said platform so that when said platform is rotated 90* to an open position said trap door moves 180* and the ladder is released, said emergency fire exit means having signal and emergency safety means.
Claim 2
Dependent Claim
80 words
A emergency fire exit means comprising in combination a window and fire escape means including a frame, a movable sill, a platform pivotally mounted on said frame, a ladder mounted on said platform, a means for releasing said ladder, a movable trap door mounted in said platform so that when said platform is rotated 90* to an open position said trap door moves 180* and the ladder is released, said emergency fire exit means having signal and emergency safety means.
Claim 3
Dependent Claim
19 words
Apparatus as in claim 1, wherein said movable sill is attached to said trap door pivoting downwardly when released.
Claim 4
Dependent Claim
16 words
Apparatus as in claim 1, wherein said movable sill is attached to said window, swinging outwardly.
Claim 5
Dependent Claim
26 words
Apparatus as in claim 1, wherein said frame is unrestricted in size shape and materials for attachment of said window, and said fire escape means thereto.
Claim 6
Dependent Claim
22 words
Apparatus as in claim 1, wherein said emergency fire exit means is attachably fastened to windows, rails and buildings by securing means.
Claim 7
Dependent Claim
23 words
Apparatus as in claim 1, wherein said ladder drops vertically in line with windows below, making said windows below accessible for fire exits.
Claim 8
Dependent Claim
30 words
Apparatus as in claim 1, wherein said platform is made to allow a greater amount of standing room, where the increased size removes the victims from the window escaped from.
Claim 9
Dependent Claim
22 words
Apparatus as in claim 7, wherein said platform releases said ladder downwardly bypassing the windows below, wherein certain hazards would be desirable.
Claim 10
Dependent Claim
27 words
Apparatus as in claim 1, wherein said fire escape means contains a rotatable roller to store said ladder and release said ladder and roll up said ladder.
Claim 11
Dependent Claim
31 words
Apparatus as in claim 1, wherein said signal means comprises an alarm and electric circuit and light responsive to signal when the emergency fire exit means has been opened for use.
Claim 12
Dependent Claim
36 words
Apparatus as in claim 1, wherein said emergency safety means comprises a emergency lowering harnesS to lower victims and invalids from the fire area to ground safety, said safety means incorporating holding handles placed for safety.
Claim 13
Dependent Claim
31 words
Apparatus as in claim 1, wherein said emergency fire exit means can be operated manually, by releasing a lock, and automatically by heat sensors, smoke and gas sensors, and electrically controlled.
Claim 14
Dependent Claim
21 words
Apparatus as in claim 1, wherein said window means incorporates a door swinging outwardly of solid frame and of glass construction.
References Cited (Backward Citations)
US1395563A
Cited
US1753798A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-11-11 | 1978-05-13 | 1978-11-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-11-11 | 1982-05-13 | 1982-11-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-11-11 | 1986-05-13 | 1986-11-12 | $7700.00 | Window Closed / Lapsed |