Patent US3753326A successfully refreshed from Google Patents.
US3753326A
Expired / Lapsed
US
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Hollow structural members
Assignee: Cyclops Corp
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Filing: 1971-04-26
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Granted: 1973-08-21
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Expires: 1991-04-26
Abstract
Abstract A hollow structural member comprising at least two connected wrought metal components, each component having a specially formed edge configuration and a plain formed remaining portion. The hollow structural member is formed by connecting the plain formed remaining portion of a first component with the specially formed edge configuration of a second component and connecting the plain formed portion of the second component with the specially formed edge configuration of the first component or a third component, etc., these connections being inward from the outer extremities of the special formed edge configurations and being along a recess in an enlarged mass portion of the special formed edge configuration.
Inventors
- 👤 R Kaufman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 21:42
CPC Classifications
B; B23; B23P; B23P15/00; B23P15/04; B21; B21H; B21H7/00; B21H7/16; E; E04; E04C; E04C3/00; E04C3/02; E04C3/04; E04C3/06; F; F01; F01D; F01D5/00; F01D5/12; F01D5/14; F01D5/147; F01D5/18; E04C2003/0404; E04C2003/0408; E04C2003/0413; E04C2003/0426; E04C2003/043; E04C2003/0439; E04C2003/0443; E04C2003/0452; E04C2003/046; E04C2003/0473; E04C2003/0482; F05; F05D; F05D2240/00; F05D2240/80; F05D2240/81
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
113 words
A hollow structural member comprising three connected wrought metal components, each of said components having a specially formed edge configuration including an enlarged mass portion and a recess therein inwardly located from the extreme end thereof and a relatively thin remaining portion so formed that the relatively thin remaining portion of each component mates with and is connected in a direct and continuous manner to the recess of the enlarged mass portion of the specially formed edge configuration of another component, two of said components having opposing 90* bends, said three components being joined to form a hollow T-shaped structural member, and each adjacent connection being on different faces of the structural member.
Claim 2
Dependent Claim
113 words
A hollow structural member comprising three connected wrought metal components, each of said components having a specially formed edge configuration including an enlarged mass portion and a recess therein inwardly located from the extreme end thereof and a relatively thin remaining portion so formed that the relatively thin remaining portion of each component mates with and is connected in a direct and continuous manner to the recess of the enlarged mass portion of the specially formed edge configuration of another component, two of said components having opposing 90* bends, said three components being joined to form a hollow T-shaped structural member, and each adjacent connection being on different faces of the structural member.
Claim 3
Dependent Claim
111 words
A hollow structural member comprising two connected wrought metal components, each component having two 90* bends in the same direction, a specially formed edge configuration including an enlarged mass portion with a recess therein inwardly located from the extreme end thereof and a relatively thin remaining portion so formed that the relatively thin remaining portion of each component mates with and is connected in a direct and continuous manner to the recess of the enlarged mass portion of the specially formed edge configuration of the other component, the two components being joined to form a U-shaped hollow structural member, and each adjacent connection being on different faces of the structural member.
Claim 4
Dependent Claim
111 words
A hollow structural member comprising two connected wrought metal components, each component having two 90* bends in the same direction, a specially formed edge configuration including an enlarged mass portion with a recess therein inwardly located from the extreme end thereof and a relatively thin remaining portion so formed that the relatively thin remaining portion of each component mates with and is connected in a direct and continuous manner to the recess of the enlarged mass portion of the specially formed edge configuration of the other component, the two components being joined to form a U-shaped hollow structural member, and each adjacent connection being on different faces of the structural member.
Claim 5
Dependent Claim
141 words
A hollow structural member comprising four connected wrought metal components, two of said components each having 90* bends in the same direction, said two components positioned so that said 90* bends are oppositely directed, the remaining two components being straight and connecting to the bent components, each of said components having a specially formed edge configuration including an enlarged mass portion and a recess therein inwardly located from the extreme end thereof and a relatively thin remaining portion so formed that the relatively thin remaining portion of each component mates with and is connected in a direct and continuous manner to the recess of the enlarged mass portion of the specially formed edge configuration of another component, the four components being joined to form an I-shaped hollow structural member, and each adjacent connection being on different faces of the structural member.
Claim 6
Dependent Claim
141 words
A hollow structural member comprising four connected wrought metal components, two of said components each having 90* bends in the same direction, said two components positioned so that said 90* bends are oppositely directed, the remaining two components being straight and connecting to the bent components, each of said components having a specially formed edge configuration including an enlarged mass portion and a recess therein inwardly located from the extreme end thereof and a relatively thin remaining portion so formed that the relatively thin remaining portion of each component mates with and is connected in a direct and continuous manner to the recess of the enlarged mass portion of the specially formed edge configuration of another component, the four components being joined to form an I-shaped hollow structural member, and each adjacent connection being on different faces of the structural member.
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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) | 1976-08-20 | 1977-02-19 | 1977-08-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-08-20 | 1981-02-19 | 1981-08-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-08-20 | 1985-02-19 | 1985-08-21 | $7700.00 | Window Closed / Lapsed |