Patent US4375629A successfully refreshed from Google Patents.
US3680271A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Wall frame structures
Assignee: Guest Keen and Nettlefolds Aust Ltd
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Filing: 1970-03-11
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Granted: 1972-08-01
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Expires: 1990-03-11
Abstract
Abstract A wall frame structure made up of upper and lower sheet steel plates between which extend a number of studs, the studs being connected to the plates, preferably at both ends by means which engage with co-operating means on the plate in such a manner that the two are secured together without the use of welding, nuts and bolts or rivetting.
Inventors
- 👤 Eric William Satchell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 21:03
CPC Classifications
E; E04; E04B; E04B2/00; E04B2/56; E04B2/58; E04B2/74; E04B2/76; E04B2/762; E04B2/765; E04B2/7407; E04B2/7409; E04B2/7411
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
210 words
A steel frame structure for buildings comprising upper and lower plate members each constituted by a U-shaped sheet metal channel having opposite wall portions, said plate members being arranged spaced from each other with said opposite wall portions on said two plate members respectively extending toward each other, at least one of said opposite wall portions of each plate member being formed at intervals along its length with inwardly projecting lugs; and a plurality of stud members, each constituted by a sheet metal channel extending between said plate members and each having opposite end portions respectively snugly received between said opposite wall portions of said plate members, each of said stud members having at each end thereof an inwardly inclined portion for engagement with the respective inwardly projecting lug on the plate member and spaced from said end an aperture for matingly receiving the respective lug, whereby during insertion of the opposite end portions of said stud members between said opPosite wall portions of said plate members, the walls of at least one of said members are first resiliently deformed by engagement of said inclined portions with said projecting lugs so that after full insertion said lugs snap into the respective apertures to thereby lock the members to each other.
Claim 2
Dependent Claim
210 words
A steel frame structure for buildings comprising upper and lower plate members each constituted by a U-shaped sheet metal channel having opposite wall portions, said plate members being arranged spaced from each other with said opposite wall portions on said two plate members respectively extending toward each other, at least one of said opposite wall portions of each plate member being formed at intervals along its length with inwardly projecting lugs; and a plurality of stud members, each constituted by a sheet metal channel extending between said plate members and each having opposite end portions respectively snugly received between said opposite wall portions of said plate members, each of said stud members having at each end thereof an inwardly inclined portion for engagement with the respective inwardly projecting lug on the plate member and spaced from said end an aperture for matingly receiving the respective lug, whereby during insertion of the opposite end portions of said stud members between said opPosite wall portions of said plate members, the walls of at least one of said members are first resiliently deformed by engagement of said inclined portions with said projecting lugs so that after full insertion said lugs snap into the respective apertures to thereby lock the members to each other.
Claim 3
Dependent Claim
27 words
A steel frame structure as defined in claim 1, wherein both opposite wall portions of each plate member are formed along its length with inwardly projecting lugs.
Claim 4
Dependent Claim
42 words
A steel wall frame structure as in claim 1, including transverse connectors arranged at intervals between said stud members, each transverse connector being formed from sheet steel folded to a channel section and being connected at each end to a stud member.
Claim 5
Dependent Claim
59 words
A steel wall frame structure as in claim 3, wherein each nogging is provided at each end with a T-shaped lug and each stud member is provided at intervals with T-shaped slots, whereby the T-shaped lugs of said noggings are engaged with said slots of said studs and relative movement between said noggings and said stud members is prevented.
Claim 6
Dependent Claim
44 words
A steel wall frame structure as in claim 1, wherein said studs and plates are of the same width whereby each external side surface of the wall frame lies in a single plane whereby cladding can be easily mounted on the wall frame structure.
Claim 7
Dependent Claim
28 words
A steel wall frame structure as in claim 1, wherein said stud members are further provided with holes whereby essential services may pass through the wall frame structure.
Claim 8
Dependent Claim
29 words
A steel wall frame structure as in claim 1, wherein said stud members are further provided with a cut-out whereby essential services may pass through said wall frame structure.
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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) | 1975-08-01 | 1976-01-31 | 1976-08-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-08-01 | 1980-01-31 | 1980-08-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-08-01 | 1984-01-31 | 1984-08-01 | $7700.00 | Window Closed / Lapsed |