Patent US854041A successfully refreshed from Google Patents.
US4099596A
Expired / Lapsed
US
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Escape device
Assignee: Individual
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Filing: 1976-07-08
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Granted: 1978-07-11
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Expires: 1996-07-08
Abstract
Abstract A safety device for enabling people to escape from burning buildings or the like comprises a normally folded flexible tube with a landing pad at its lower end that unfolds to vertical chute condition, the interior of the tube being slippery to provide against snagging and the like and the unfolded tube being formed with elastic restrictions at successive vertical levels that snub the descent to a safe speed.
Inventors
- 👤 Thomas Ray Tracy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 18:00
CPC Classifications
A; A62; A62B; A62B1/00; A62B1/20
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
216 words
An escape device comprising a folded annular pack consisting of a longitudinally folded open ended flexible tubular chute and an attached cushion pad maintained in assembly therewith, a support frame for mounting the pack at a building opening or the like, means connecting the upper open end of the chute to said frame, said pad being connected to the lower end of said chute, means whereby the chute may be released to unfold downwardly so that the lower end of said chute may be lowered toward the ground, longitudinally spaced elastic restriction means spaced at diferent levels along the unfolded chute for periodically successively slowing the descent of a body entering the upper end of said chute, each of said restriction means comprising at least two circumferentially separate elastic bands secured externally on the chute with their opposite ends in spaced relation to thereby define between said opposite ends smooth, uninterrupted areas in said chute which effectively prevent catching or snagging of a user's extremities such as elbows and heels in the area of said restriction means as the user falls through said chute and means whereby said pad is disposed angularly relative to the chute axis across and extending away from the open lower end of said chute in the unfolded position of the pack.
Claim 2
Dependent Claim
216 words
An escape device comprising a folded annular pack consisting of a longitudinally folded open ended flexible tubular chute and an attached cushion pad maintained in assembly therewith, a support frame for mounting the pack at a building opening or the like, means connecting the upper open end of the chute to said frame, said pad being connected to the lower end of said chute, means whereby the chute may be released to unfold downwardly so that the lower end of said chute may be lowered toward the ground, longitudinally spaced elastic restriction means spaced at diferent levels along the unfolded chute for periodically successively slowing the descent of a body entering the upper end of said chute, each of said restriction means comprising at least two circumferentially separate elastic bands secured externally on the chute with their opposite ends in spaced relation to thereby define between said opposite ends smooth, uninterrupted areas in said chute which effectively prevent catching or snagging of a user's extremities such as elbows and heels in the area of said restriction means as the user falls through said chute and means whereby said pad is disposed angularly relative to the chute axis across and extending away from the open lower end of said chute in the unfolded position of the pack.
Claim 3
Dependent Claim
36 words
An escape device as defined in claim 1, wherein the wall of said flexible chute is laminated, there being an inner layer of relatively smooth and slippery material and an outer layer of sturdy fireproof material.
Claim 4
Dependent Claim
18 words
The escape device defined in claim 2, wherein the inner layer is a fine weave synthetic plastic cloth.
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) | 1981-07-10 | 1982-01-09 | 1982-07-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-07-10 | 1986-01-09 | 1986-07-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-07-10 | 1990-01-09 | 1990-07-11 | $7700.00 | Window Closed / Lapsed |