Patent US3596421A successfully refreshed from Google Patents.
US3596421A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Structural beam for supporting concrete flooring
Assignee: ELKHART BRIDGE AND IRON CO
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Filing: 1969-01-21
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Granted: 1971-08-03
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Expires: 1989-01-21
Abstract
Abstract A structural beam for supporting concrete flooring including a base part and an integral web extending upwardly from said base part. An inverted U-shaped cap is mounted over the upper margin of the web. The U-shaped cap has a plurality of longitudinally spaced transverse slots in its upper portion and includes outturned flanges extending oppositely and laterally from the web. The flanges of the cap are adapted to support deck plates which extend between adjacent parallel beams and over which the concrete flooring is to be poured.
Inventors
- 👤 Frank E Miller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 15:41
CPC Classifications
E; E04; E04B; E04B5/00; E04B5/16; E04B5/32; E04B5/36; E04B5/38; E04B5/40
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
119 words
In combination in a floor structure, a plurality of spaced parallel beams each having a vertical elongated web and a laterally projecting base, an elongated member of inverted Ushape in cross section fitting upon the upper margin of said web and having opposite laterally projecting flanges spaced above said base, a longitudinal reinforcing bar of zigzag shape having spaced transverse portions secured to the upper part of said elongated member spaced above said flanges, transverse reinforcing bars supported by and extending between said beams, plates extending between said beams and supported by said flanges, and a monolithic concrete slab supported by said plates and imbedding said longitudinal and transverse reinforcing bars and the upper part of said elongated member.
Claim 2
Dependent Claim
119 words
In combination in a floor structure, a plurality of spaced parallel beams each having a vertical elongated web and a laterally projecting base, an elongated member of inverted Ushape in cross section fitting upon the upper margin of said web and having opposite laterally projecting flanges spaced above said base, a longitudinal reinforcing bar of zigzag shape having spaced transverse portions secured to the upper part of said elongated member spaced above said flanges, transverse reinforcing bars supported by and extending between said beams, plates extending between said beams and supported by said flanges, and a monolithic concrete slab supported by said plates and imbedding said longitudinal and transverse reinforcing bars and the upper part of said elongated member.
Claim 3
Dependent Claim
21 words
the combination defined in claim 1, wherein an elongated member and a longitudinal reinforcing bar are fixedly secured to each beam.
Claim 4
Dependent Claim
35 words
The combination defined in claim 1, wherein the upper portions of each elongated member and beam web have longitudinally spaced registering recesses in which transverse portions of said longitudinal reinforcing bar seat and are welded.
Claim 5
Dependent Claim
55 words
The combination defined in claim 1, wherein the upper portions of each elongated member and beam web have longitudinally spaced registering recesses in which transverse portions of said longitudinal reinforcing bar seat, said elongated member and web at opposite sides of said recesses including swaged parts securing said transverse portions of said longitudinal reinforcing bar.
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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) | 1974-08-02 | 1975-02-01 | 1975-08-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-08-02 | 1979-02-01 | 1979-08-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-08-02 | 1983-02-01 | 1983-08-03 | $7700.00 | Window Closed / Lapsed |