Patent US3866381A successfully refreshed from Google Patents.
US3866381A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Extruded columnar frame for partitions, walls and enclosures
Assignee: Aztec Manufacturing Co
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Filing: 1973-01-22
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Granted: 1975-02-18
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Expires: 1993-01-22
Abstract
Abstract An extrusion for receiving and interconnecting laminated panel sections for quick construction of partitions or enclosures is disclosed. The extrusions form frame members for the partitions or enclosures and are designed to permit quick assembly and disassembly of building structures without the use of fasteners. The extrusions include channel portions adapted to receive the edges of the panels, the panels being grooved and adapted to snap into the corresponding channels. The extrusions may be H-shaped in cross section for forming panels into a flat partition or wall, may be formed with a channel on one side and adapted to receive door or window fittings on the other side, or may be formed in a corner unit configuration to permit joining of panels at right angles. The corner unit extrusion includes two interlocking half members which define a central cavity for receiving a rigid pipe, which prevents the interlocking members from being separated. The extrusions and panel sections are particularly adapted for use in constructing light-weight truck canopies, and for this purpose J-shaped interlocking extrusions permit quick connection of side panels to a roof panel and form a pivotal hinge for an access door.
Inventors
- 👤 Robert C Eschbach
- 👤 John B Colligan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 12:38
CPC Classifications
B; B62; B62D; B62D33/00; B62D33/04; B62D33/046; E; E04; E04B; E04B2/00; E04B2/74; E04B2/76; E04B2/78
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
257 words
A columnar frame member for a building structure, comprising a first elongated half member having a first edge incorporating a first outwardly-turned trough flange carrying a first inwardly-extending projection and a second edge incorporating a first inwardly-turned locking flange, said first half member further including a second inwardly-extending projection extending from the inner surface of said first half member and spaced between said first projection and said first locking flange; a second elongated half member complementary to said first half member and cooperating therewith to define a central cavity, said second half member having a first edge incorporating a second inwardly-turned locking flange adapted to interlock with said first trough flange, and a second edge incorporating a second outwardly-turned trough flange carrying a third inwardly-extending projection, said second trough flange being adapted to interlock with said first inwardly-turned locking flange, said second half member further including a fourth inwardly-extending projection extending from the inner surface of said second half member and spaced between said third projection and said second locking flange, said first, second, third and fourth projections extending into said central cavity when the respective first and second edges of said first and second half members are engaged; and an elongated, removable, tubular holding member located within said central cavity and extending substantially the full length of said frame member, the outer diameter of said holding member being such that the external surface of the holding member contacts the inner ends of said projections and thereby secures said first and second half members in assembled relationship.
Claim 2
Dependent Claim
257 words
A columnar frame member for a building structure, comprising a first elongated half member having a first edge incorporating a first outwardly-turned trough flange carrying a first inwardly-extending projection and a second edge incorporating a first inwardly-turned locking flange, said first half member further including a second inwardly-extending projection extending from the inner surface of said first half member and spaced between said first projection and said first locking flange; a second elongated half member complementary to said first half member and cooperating therewith to define a central cavity, said second half member having a first edge incorporating a second inwardly-turned locking flange adapted to interlock with said first trough flange, and a second edge incorporating a second outwardly-turned trough flange carrying a third inwardly-extending projection, said second trough flange being adapted to interlock with said first inwardly-turned locking flange, said second half member further including a fourth inwardly-extending projection extending from the inner surface of said second half member and spaced between said third projection and said second locking flange, said first, second, third and fourth projections extending into said central cavity when the respective first and second edges of said first and second half members are engaged; and an elongated, removable, tubular holding member located within said central cavity and extending substantially the full length of said frame member, the outer diameter of said holding member being such that the external surface of the holding member contacts the inner ends of said projections and thereby secures said first and second half members in assembled relationship.
Claim 3
Dependent Claim
21 words
The structural corner unit of claim 1, wherein each of said first and second half members further includes panel securing means.
Claim 4
Dependent Claim
34 words
The structural corner unit of claim 2, wherein each of said panel securing means includes a channel integrally formed on the corresponding half member, said channel being defined by legs having inwardly-turned panel-engaging flanges.
Claim 5
Dependent Claim
105 words
The columnar frame member of claim 1, wherein said first half member has an inner side formed by a first flat wall portion carrying said first outwardly-turned trough flange and an outer side formed by a first curved wall portion carrying said first inwardly turned locking flange; and said second half member has an inner side formed by a second flat wall portion carrying said second inwardly-turned locking flange adapted to interlock with said first trough flange and an outer side formed by a second curved wall portion carrying said second outwardly turned trough flange adapted to interlock with said first inwardly turned locking flange.
Claim 6
Dependent Claim
40 words
The structural corner unit of claim 4, wherein each of said first and second half members further includes panel securing means, said panel securing means being formed on the outer surfaces of said first and second flat wall portions, respectively.
Claim 7
Dependent Claim
26 words
The structural corner unit of claim 5, wherein said first and second flat wall portions form a substantially right angle when said cover unit is assembled.
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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) | 1978-02-17 | 1978-08-19 | 1979-02-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-02-17 | 1982-08-19 | 1983-02-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-02-17 | 1986-08-19 | 1987-02-18 | $7700.00 | Window Closed / Lapsed |