Patent US3881699A successfully refreshed from Google Patents.
US3881699A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Elevating perimeter railing
Assignee: Individual
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Filing: 1974-04-15
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Granted: 1975-05-06
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Expires: 1994-04-15
Abstract
Abstract For use about the perimeter during construction of multi-story building, a safety railing comprising a plurality of substantially vertical stanchions interconnected with substantially horizontal safety cables, the stanchions being vertically slidably secured to two lower floors and extending upwardly a suffidient distance to form a safety railing about the perimeter of a third, upper floor. Each stanchion may be vertically raised so as to continually protect the perimeter of each uppermost floor as the same is formed in the progress of construction. By virtue of being fastened to lower floors and extending in cantilever fashion to the uppermost floor without being fastened thereto, a safety railing is provided on the uppermost floor before workmen are permitted general unrestricted access thereto.
Inventors
- 👤 Arthur Nusbaum
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 21:07
CPC Classifications
E; E04; E04G; E04G21/00; E04G21/32; E04G21/3204; E04G21/3223; E04G21/3247
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
122 words
A temporary perimeter railing for multi-story building construction, comprising: a. a plurality of stanchions, each stanchion being of a length at least sufficient to extend past three adjacent floors of the building under construction; b. a plurality of floor brackets adapted to slidably secure said stanchions to the floors of the building under construction, at least two of said floor brackets being vertically disposed adjacent the edges of adjacent floors for each of said stanchions whereby each stanchion is vertically slidably constrained such that each stanchion may be raised to extend above an upper floor and to be secured by said floor bracKets disposed on at least two lower floors; and c. safety guards extending from stanchion to stanchion and secured thereto.
Claim 2
Dependent Claim
122 words
A temporary perimeter railing for multi-story building construction, comprising: a. a plurality of stanchions, each stanchion being of a length at least sufficient to extend past three adjacent floors of the building under construction; b. a plurality of floor brackets adapted to slidably secure said stanchions to the floors of the building under construction, at least two of said floor brackets being vertically disposed adjacent the edges of adjacent floors for each of said stanchions whereby each stanchion is vertically slidably constrained such that each stanchion may be raised to extend above an upper floor and to be secured by said floor bracKets disposed on at least two lower floors; and c. safety guards extending from stanchion to stanchion and secured thereto.
Claim 3
Dependent Claim
30 words
A temporary perimeter railing for multi-story building construction in accordance with claim 1, wherein: each of said stanchions comprises a beam having at least one flanged U-channel extending longitudinally thereof.
Claim 4
Dependent Claim
30 words
A temporary perimeter railing for multi-story building construction in accordance with claim 1, wherein: each of said stanchions comprises four flanged U-channels disposed in back-to-back relationship, each extending longitudinally thereof.
Claim 5
Dependent Claim
54 words
A temporary perimeter railing for multi-story building construction in accordance with claim 1, wherein: said safety guards comprise a plurality of cables extending horizontally from stanchion to stanchion, the ends of each cable being secured to stanchions adjacent said ends, each cable passing through an eye bolt slidably secured to stanchions intermediate its ends.
Claim 6
Dependent Claim
60 words
A temporary perimeter railing for multi-story building construction in accordance with claim 1, wherein: each of said floor brackets comprises an angle bracket one flange of which is secured to a floor and the other flange of which is securable to a stanchion by means of a bolt which engages a flanged channel provided in the stanchion for the purpose.
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) | 1978-05-05 | 1978-11-04 | 1979-05-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-05-05 | 1982-11-04 | 1983-05-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-05-05 | 1986-11-04 | 1987-05-06 | $7700.00 | Window Closed / Lapsed |