US4773199A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Reinforcing frame work for constructing reinforced concrete structure
Assignee: FUJIKIGYO CO Ltd
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Filing: 1987-07-16
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Granted: 1988-09-27
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Expires: 2007-07-16
Abstract
Abstract A reinforcing frame work for covering structural steel bars of a reinforced concrete structure to be constructed is disclosed herein. The frame work comprises a plurality of frame units connected together and disposed along said structural steel bars, each of said frame units comprising a plurality of spacers extending in the transverse direction of said concrete structure and at least one guide steel bar extending in the longitudinal direction of said concrete structure and having said spacers secured thereto in laterally spaced relationship along the length of the guide steel bar.
Inventors
- 👤 Soichiro Kohara
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 10:33
CPC Classifications
E; E04; E04B; E04B2/00; E04B2/84; E04B2/86; E04B2/8647; E04B2/8611
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
148 words
A frame work for use in constructing a steel reinforced concrete wall structure and comprising laterally spaced inner and outer wall elements of light weight rigid material, said wall elements having outer surfaces defining the walls thickness, said wall elements being parallel to one another and extending longitudinally to define a space therebetween, longitudinally extending steel bars provided adjacent the outer surfaces of said wall elements, said bars being arranged generally parallel to one another, longitudinally spaced frame units each of which comprises plurality of a generally U-shaped steel spacers (123, 123) having leg portions spaced from one another by the distance between the outer surfaces of said wall elements, the leg portions of each said U-shaped spacers being provided adjacent said wall element outer surfaces and comprising upwardly turned hook portions secured to longitudinally spaced locations of said bar elements and concrete provided between said wall elements.
Claim 2
Dependent Claim
148 words
A frame work for use in constructing a steel reinforced concrete wall structure and comprising laterally spaced inner and outer wall elements of light weight rigid material, said wall elements having outer surfaces defining the walls thickness, said wall elements being parallel to one another and extending longitudinally to define a space therebetween, longitudinally extending steel bars provided adjacent the outer surfaces of said wall elements, said bars being arranged generally parallel to one another, longitudinally spaced frame units each of which comprises plurality of a generally U-shaped steel spacers (123, 123) having leg portions spaced from one another by the distance between the outer surfaces of said wall elements, the leg portions of each said U-shaped spacers being provided adjacent said wall element outer surfaces and comprising upwardly turned hook portions secured to longitudinally spaced locations of said bar elements and concrete provided between said wall elements.
Claim 3
Dependent Claim
44 words
The frame work according to claim 1 wherein said frame units further comprise means for interconnecting said U-shaped elements, said means comprising horizontally extending common guide bars (127, 127), said common guide bar being provided intermediate said wall elements and interconnecting said U-shaped elements.
Claim 4
Dependent Claim
29 words
The framework according to claim 2 wherein said frame units further comprise vertically extending common guide bars (111, 111) also intermediate said wall elements and interconnecting said U-shaped elements.
References Cited (Backward Citations)
US1105682A
Cited
FR483617A
Cited
US1779949A
Cited
US1945991A
Cited
DE1037105B
Cited
US3744202A
Cited
US4433520A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1991-09-27 | 1992-03-28 | 1992-09-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-09-27 | 1996-03-28 | 1996-09-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-09-27 | 2000-03-28 | 2000-09-27 | $7700.00 | Window Closed / Lapsed |