US3744202A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Building construction
Assignee: Individual
•
Filing: 1971-08-16
•
Granted: 1973-07-10
•
Expires: 1991-08-16
Abstract
Abstract A constructional element comprises two concrete shells which are reinforced by basic steel mats and by parallel mat strips which are bent so as to connect the two shells.
Inventors
- 👤 G Hubmann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 10:52
CPC Classifications
E; E04; E04C; E04C2/00; E04C2/02; E04C2/04; E04C2/044; E04C2002/045; E04C2002/048
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
170 words
A reinforced concrete element comprising, in combination: a. a substantially planar wall shell of reinforced concrete; b. a plurality of elongated first steel mats projecting from said shell in spacedly parallel relationship, each mat including: 1. a plurality of substantially U-shaped rod members extending in respective planes transverse to the direction of mat elongation, each rod member having two leg portions partly emBedded in said shell and a bight portion connecting respective ends of said leg portions, said bight portions defining a first plane substantially parallel to said wall shell and remote from the same, and 2. a plurality of longitudinal rod members elongated in the direction of mat elongation between said wall shell and said first plane and fixedly fastened to said leg portions so as to connect said U-shaped members; and c. a substantially planar second mat of intersecting steel rods fixedly secured to said longitudinal members in a second plane substantially parallel to said first plane and to said wall shell and spacedly interposed between the same.
Claim 2
Dependent Claim
170 words
A reinforced concrete element comprising, in combination: a. a substantially planar wall shell of reinforced concrete; b. a plurality of elongated first steel mats projecting from said shell in spacedly parallel relationship, each mat including: 1. a plurality of substantially U-shaped rod members extending in respective planes transverse to the direction of mat elongation, each rod member having two leg portions partly emBedded in said shell and a bight portion connecting respective ends of said leg portions, said bight portions defining a first plane substantially parallel to said wall shell and remote from the same, and 2. a plurality of longitudinal rod members elongated in the direction of mat elongation between said wall shell and said first plane and fixedly fastened to said leg portions so as to connect said U-shaped members; and c. a substantially planar second mat of intersecting steel rods fixedly secured to said longitudinal members in a second plane substantially parallel to said first plane and to said wall shell and spacedly interposed between the same.
Claim 3
Dependent Claim
73 words
a plurality of longitudinal rod members elongated in the direction of mat elongation between said wall shell and said first plane and fixedly fastened to said leg portions so as to connect said U-shaped members; and c. a substantially planar second mat of intersecting steel rods fixedly secured to said longitudinal members in a second plane substantially parallel to said first plane and to said wall shell and spacedly interposed between the same.
Claim 4
Dependent Claim
73 words
a plurality of longitudinal rod members elongated in the direction of mat elongation between said wall shell and said first plane and fixedly fastened to said leg portions so as to connect said U-shaped members; and c. a substantially planar second mat of intersecting steel rods fixedly secured to said longitudinal members in a second plane substantially parallel to said first plane and to said wall shell and spacedly interposed between the same.
Claim 5
Dependent Claim
57 words
An element as set forth in claim 1, further comprising a substantially planar third mat of intersecting steel rods fixedly secured to said longitudinal members in a third plane substantially parallel to said second plane, spacedly interposed between said second plane and said wall shell, and substantially closer to said wall shell than to said first plane.
Claim 6
Dependent Claim
39 words
An element as set forth in claim 1, further comprising a substantially planar second wall shell of reinforced concrete extending in said first plane and enveloping said bight portions, said second mat being spaced from said second wall shell.
Claim 7
Dependent Claim
44 words
An element as set forth in claim 3, further comprising a plurality of steel rod members, each steel rod member having respective longitudinal portions embedded in two of said spaced ribs defining an air space and another longitudinal portion exposed in said air space.
Claim 8
Dependent Claim
58 words
An element as set forth in claim 1, further comprising a concrete rib at least partly enveloping each of said first steel mats, said ribs being elongated and transversely spaced from each other so as to define air spaces therebetween, respective portions of said second mat being exposed in the air space between each pair of adjacent ribs.
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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) | 1976-07-09 | 1977-01-08 | 1977-07-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-07-09 | 1981-01-08 | 1981-07-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-07-09 | 1985-01-08 | 1985-07-10 | $7700.00 | Window Closed / Lapsed |