US4452339A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Emergency body descender
Assignee: EMERGENCY DESCENDER INCORPORATED A CORP OF
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Filing: 1982-05-28
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Granted: 1984-06-05
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Expires: 2002-05-28
Abstract
Abstract A full length and protected body harness attached by cable wire to an apparatus with a controlled pay out for use in escaping mortal danger in high-rise buildings.
Inventors
- 👤 Charles A. Raymaker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 20:47
CPC Classifications
A; A62; A62B; A62B35/00; A62B35/0006; A62B1/00; A62B1/06; A62B1/08; A62B1/10; A62B35/0025; A62B35/0037; A62B35/0043; A62B35/0068
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
134 words
Apparatus for emergency descent from a building, comprising a coil of cable, means at one end of the cable for attaching a harness, means attached to the other end of the cable and rotatable to permit the cable to unwind to lower the harness, means for braking rotation of said rotatable means and thereby controlling the rate of descent of the harness, means for mounting the rotatable means and braking means, means for anchoring the mounting means to a building so that the rotatable means and braking means remain where they are anchored while the cable is unwound to lower the harness, including means for manually rewinding the cable and means responsive to cable tension induced by weight in the harness to prevent rewinding of the cable while the harness is occupied and descending.
Claim 2
Dependent Claim
134 words
Apparatus for emergency descent from a building, comprising a coil of cable, means at one end of the cable for attaching a harness, means attached to the other end of the cable and rotatable to permit the cable to unwind to lower the harness, means for braking rotation of said rotatable means and thereby controlling the rate of descent of the harness, means for mounting the rotatable means and braking means, means for anchoring the mounting means to a building so that the rotatable means and braking means remain where they are anchored while the cable is unwound to lower the harness, including means for manually rewinding the cable and means responsive to cable tension induced by weight in the harness to prevent rewinding of the cable while the harness is occupied and descending.
Claim 3
Dependent Claim
39 words
Apparatus according to claim 1, including means for detecting a release of weight in the harness, and means activated by said detecting means for engaging the rewind means as a result of the release of weight in the harness.
Claim 4
Dependent Claim
160 words
Apparatus for emergency descent from a building, comprising a coil of cable, means at one end of the cable for attaching a harness, means attached to the other end of the cable and rotatable to permit the cable to unwind to lower the harness, means for braking rotating of said rotatable means and thereby controlling the rate of descent of the harness, means for mounting the rotatable means and braking means, means for anchoring the mounting means to a building so that the rotatable means and breaking means remain where they are anchored while the cable is unwound to lower the harness, and a harness comprising a fire resistant material for protecting the face and body of a person in the harness, a mesh air screen for providing an air supply to enter the harness, a vinyl shield for providing visibility from within to the outside of the harness, and rigid diverging rods attaching the harness to the cable wire.
Claim 5
Dependent Claim
160 words
Apparatus for emergency descent from a building, comprising a coil of cable, means at one end of the cable for attaching a harness, means attached to the other end of the cable and rotatable to permit the cable to unwind to lower the harness, means for braking rotating of said rotatable means and thereby controlling the rate of descent of the harness, means for mounting the rotatable means and braking means, means for anchoring the mounting means to a building so that the rotatable means and breaking means remain where they are anchored while the cable is unwound to lower the harness, and a harness comprising a fire resistant material for protecting the face and body of a person in the harness, a mesh air screen for providing an air supply to enter the harness, a vinyl shield for providing visibility from within to the outside of the harness, and rigid diverging rods attaching the harness to the cable wire.
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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) | 1987-06-05 | 1987-12-05 | 1988-06-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-06-05 | 1991-12-05 | 1992-06-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-06-05 | 1995-12-05 | 1996-06-05 | $7700.00 | Window Closed / Lapsed |