Patent US3774356A successfully refreshed from Google Patents.
US3774356A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Wall frame for a foldable steel building
Assignee: Atco Structures Inc
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Filing: 1971-09-17
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Granted: 1973-11-27
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Expires: 1991-09-17
Abstract
Abstract U.S. Pat. No. 3,296,752 and Canadian Pat. 723,348 issued to the present inventor in a prefabricated foldable structural steel building. The present invention provides an improved wall frame having improved means (100) to secure the wall frames to side wall columns, and an improved releasably secured means (110) securing braces to columns. These improvements permit construction of buildings with wider spans than economically practicable in the patented buildings above, and facilitate erection and dismantling.
Inventors
- 👤 R Philp
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 20:40
CPC Classifications
E; E04; E04B; E04B1/00; E04B1/343; E04B1/344; E04B1/3441; E04C; E04C3/00; E04C3/38; E04C3/40
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
131 words
In a foldable building frame having hingedly interconnected side columns and rafters each column having a web and inner and outer flanges and braces extending between and connected to each column and an adjacent rafter; means securing each brace to its respective column, each of said means comprising: a. an angle section bracket rigidly connected to the web and inner flange of the column being disposed so that one leg is parallel to and spaced from the column web, said one leg having an opening therethrough, b. a pin connected to the column web against movement relative thereto and having a portion projecting through the opening in said one leg of the angle bracket, c. means connecting an end of one of said braces to said projecting portion of the pin.
Claim 2
Dependent Claim
131 words
In a foldable building frame having hingedly interconnected side columns and rafters each column having a web and inner and outer flanges and braces extending between and connected to each column and an adjacent rafter; means securing each brace to its respective column, each of said means comprising: a. an angle section bracket rigidly connected to the web and inner flange of the column being disposed so that one leg is parallel to and spaced from the column web, said one leg having an opening therethrough, b. a pin connected to the column web against movement relative thereto and having a portion projecting through the opening in said one leg of the angle bracket, c. means connecting an end of one of said braces to said projecting portion of the pin.
Claim 3
Dependent Claim
94 words
Means for securing a brace to the column as claimed in claim 1 in which the means for connecting the pin to the column web includes: a. an opening in the column web for receiving the pin, b. a head at the inner end of the pin engagable with one face of the column web for restricting movement of the pin in one direction relative to the column web and a circlet mounted on the pin engaging an opposite face of the column web for preventing movement of the pin in an opposite direction.
Claim 4
Dependent Claim
24 words
Means for securing the brace as claimed in claim 1 in which the inner end of said pin is welded to the column web.
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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) | 1976-11-26 | 1977-05-28 | 1977-11-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-11-26 | 1981-05-28 | 1981-11-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-11-26 | 1985-05-28 | 1985-11-27 | $7700.00 | Window Closed / Lapsed |