US3760901A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lifesaving systems for escaping from high buildings in the case of fires or other emergencies
Assignee: Individual
•
Filing: 1971-03-12
•
Granted: 1973-09-25
•
Expires: 1991-03-12
Abstract
Abstract A lifesaving system for escaping from high buildings in case of fires or other emergencies. The system has a descending bar coupled to the upper part of a window and which projects outwardly, such as from a building, or is coupled to a fixed point of a place a person wishes to leave. A harness or belt is provided which snugly surrounds a part of the body. A hermetically closed element is also provided which has an assembly of wheels coupled to each other in its interior. This hermetically closed element is joined by a part to the harness or belt, and therefore to the user; and is also joined by another part, such as a hook, to the descending bar when the persons to be rescued leaves the building by descending vertically.
Inventors
- 👤 P Hynes
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 09:59
CPC Classifications
A; A62; A62B; A62B1/00; A62B1/06; A62B1/08; A62B1/12
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
155 words
A device for use with fire and other emergency escape equipment utilizing a descending cable, said device descending as the user descends and comprising a housing means, rotatable means to positively engage said cable mounted on said housing means, a hermetically sealed compartment also mounted on said housing means and containing a fluid pump means comprising first and second wheels, said wheels having parallel axes and the circumferences of said wheels being in contact with each other, one of said wheels being operatively connected to said cable engaging means to rotate therewith, a suction chamber located at one side of the junction of said wheels and a pressure chamber located on the other side of the junction of said wheels, conduit means connecting said suction chamber to said pressure chamber and valve means located within said conduit means said valve means being controllable by the user, whereby the user can control his rate of descent.
Claim 2
Independent Claim
155 words
A device for use with fire and other emergency escape equipment utilizing a descending cable, said device descending as the user descends and comprising a housing means, rotatable means to positively engage said cable mounted on said housing means, a hermetically sealed compartment also mounted on said housing means and containing a fluid pump means comprising first and second wheels, said wheels having parallel axes and the circumferences of said wheels being in contact with each other, one of said wheels being operatively connected to said cable engaging means to rotate therewith, a suction chamber located at one side of the junction of said wheels and a pressure chamber located on the other side of the junction of said wheels, conduit means connecting said suction chamber to said pressure chamber and valve means located within said conduit means said valve means being controllable by the user, whereby the user can control his rate of descent.
Claim 3
Dependent Claim
25 words
A device as claimed in claim 1 wherein said cable engaging means comprises a cylindrical drum whereby said cable can be wound about said drum.
Claim 4
Dependent Claim
34 words
A device as claimed in claim 1 wherein said cable engaging means comprises a main pulley operatively connected to said one wheel, and two guide pulleys for guiding said cable against said main pulley.
Claim 5
Dependent Claim
37 words
A device as claimed in claim 3 further including mounting means mounting one of said guide pulleys for movement between an operative and a non-operative position and spring means urging said mounting means towards said non-operative position.
Claim 6
Dependent Claim
40 words
A device as claimed in claim 4 further including two pivot means for further guiding said cable, one of said pivot means being mounted on said mounting means and the other of said pivot means being mounted on said housing.
Claim 7
Dependent Claim
47 words
A device as claimed in claim 1 wherein said cable is in the form of a chain and said cable engaging means comprises a pair of spaced apart pulleys, said pulleys having means on their periphery for engaging said chain and said chain passing between said pulleys.
References Cited (Backward Citations)
US252130A
Cited
US586173A
Cited
CA583138A
Cited
GB179762A
Cited
US2663031A
Cited
US3265358A
Cited
US3519248A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-09-24 | 1977-03-26 | 1977-09-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-09-24 | 1981-03-26 | 1981-09-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-09-24 | 1985-03-26 | 1985-09-25 | $7700.00 | Window Closed / Lapsed |