Patent US3945469A successfully refreshed from Google Patents.
US3945469A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Escape elevator
Assignee: Individual
•
Filing: 1974-01-04
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Granted: 1976-03-23
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Expires: 1994-01-04
Abstract
Abstract The invention comprises an escape elevator which is especially useful with tall buildings. The escape elevator slides up and down the outside of the building along a pair of spaced apart tracks. The tracks serve to hold the elevator close to the building as well as to provide guidance for the up and down motion of the elevator. The elevator car or cage extends to either side of the tracks sufficiently to overlap egresses from the building such as balconies. The power winches which operate the elevator are located adjacent the top of the building. A shielded cable is provided which leads from the winches to a point adjacent the ground floor of the building. A remote control box is attachable at the point adjacent the ground floor of the building. Also attachable at the control box is an external power supply to which power to operate the elevator is supplied. The elevator is thus not dependent upon the internal power supply of the building. The remote control device can be operated from a considerable distance from the building whereby the operator, who in most cases will be a fireman, can best observe the fire in the building and direct rescue and fire-fighting efforts.
Inventors
- 👤 Roy L. Dorcich
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 07:36
CPC Classifications
B; B66; B66B; B66B9/00; B66B9/16; A; A62; A62B; A62B1/00
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
205 words
An escape and fire fighting elevator which operates externally along a side of a multi-story building, comprising: an electric motor attached atop the building; winch means atop the building driven by said motor for winding in and out a cable; an elevator cage attached to an end of said cable; a pair of spaced apart tracks extending along the side of said building from adjacent the top thereof to adjacent the bottom thereof; a pair of track following means extending from said cage to said tracks, said tracks including means for holding said cage adjacent the building and means for preventing said cage from moving sideways; a fire-shielded electrical connector connecting said electric motor to a control box external of the building and adjacent the ground floor thereof; a mobile electrical power supply removed from said building and detachably attachable via an electrical power line to said control box; a control cable one end of which is detachably attachable to said control box; and a remote controller attached to the other end of said control cable, said control cable being long enough so that an operator of said remote controller can be far enough from said building to observe the progress of a fire therein.
Claim 2
Dependent Claim
205 words
An escape and fire fighting elevator which operates externally along a side of a multi-story building, comprising: an electric motor attached atop the building; winch means atop the building driven by said motor for winding in and out a cable; an elevator cage attached to an end of said cable; a pair of spaced apart tracks extending along the side of said building from adjacent the top thereof to adjacent the bottom thereof; a pair of track following means extending from said cage to said tracks, said tracks including means for holding said cage adjacent the building and means for preventing said cage from moving sideways; a fire-shielded electrical connector connecting said electric motor to a control box external of the building and adjacent the ground floor thereof; a mobile electrical power supply removed from said building and detachably attachable via an electrical power line to said control box; a control cable one end of which is detachably attachable to said control box; and a remote controller attached to the other end of said control cable, said control cable being long enough so that an operator of said remote controller can be far enough from said building to observe the progress of a fire therein.
Claim 3
Dependent Claim
26 words
An elevator as in claim 1, wherein the remote controller includes means for visually and directly numerically indicating the floor opposite which the cage is located.
Claim 4
Dependent Claim
25 words
An elevator as in claim 2, including means for verbally communicating information between the operator of the remote controller and an occupant in the cage.
Claim 5
Dependent Claim
20 words
An elevator as in claim 3, wherein the cage includes an always open entranceway facing the side of the building.
Claim 6
Dependent Claim
24 words
An elevator as in claim 4, wherein said car extends orthogonally to said tracks sufficiently to overlap a plurality of egresses from the building.
Claim 7
Dependent Claim
21 words
An elevator as in claim 5, wherein said connector is external of and runs down along the outside of said building.
Claim 8
Dependent Claim
90 words
An elevator as in claim 6, wherein said tracks each include a forward portion parallel to and removed from said building which serves as said means for holding said cage adjacent the building and a side portion running from said forward portion to adjacent the building which serves as said means for preventing said cage from moving sideways and wherein said track following means comprises a first pair of wheels riding on the building side of said forward portions and a second pair of wheels riding on said side portions.
Claim 9
Dependent Claim
38 words
An elevator as in claim 7, wherein said tracks each are spaced away from said building by locating them upon a pair of columns which extend from adjacent the top of said building to adjacent the bottom thereof.
Claim 10
Dependent Claim
18 words
An elevator as in claim 8, including means for entering said cage from the roof of said building.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-03-23 | 1979-09-22 | 1980-03-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-03-23 | 1983-09-22 | 1984-03-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-03-23 | 1987-09-22 | 1988-03-23 | $7700.00 | Window Closed / Lapsed |