US4754369A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cabinet of a particularly light and stiff construction
Assignee: Telefonaktiebolaget LM Ericsson AB
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Filing: 1986-06-06
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Granted: 1988-06-28
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Expires: 2006-06-06
Abstract
Abstract A cabinet for use with electrical equipment and the like is fabricated as a particularly lightweight and stiff structure and includes a bottom flat frame part and a top flat frame part. Upstanding fastening cleats are rigidly attached to short sides of the frame parts at right angles to the planes of the frame parts. Two box-section end walls having open top and bottom ends are positioned over the cleats and are removably fastened thereto. The sheet material of the fastening cleats is corrugated. The corrugations are directed to right angles to the plane of the frame parts for engagement with the interior and exterior sheets of the end walls.
Inventors
- 👤 Gustaf B. I. Nilsson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 15:51
CPC Classifications
H; H02; H02B; H02B1/00; H02B1/26; H02B1/30
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
146 words
A cabinet for electrical equipment, fabricated as a particularly lightweight and stiff structure comprising: a bottom flat frame part having an upper surface and first and second pairs of sides, said first pair of sides being short relative to said second pair of sides; a top flat frame part having a lower surface and third and fourth pairs of sides, said third pair of sides being short relative to said fourth pair of sides; a plurality of corrugated fastening cleats attached to each of said upper surface and said lower surface adjacent said first and third pairs of sides, said fastening cleats extending in a direction perpendicular to planes defined by said upper and lower surfaces; and a plurality of box-section end walls, each having a top and a bottom which are open, said end walls being placed over said cleats and being removably fastened thereto.
Claim 2
Dependent Claim
146 words
A cabinet for electrical equipment, fabricated as a particularly lightweight and stiff structure comprising: a bottom flat frame part having an upper surface and first and second pairs of sides, said first pair of sides being short relative to said second pair of sides; a top flat frame part having a lower surface and third and fourth pairs of sides, said third pair of sides being short relative to said fourth pair of sides; a plurality of corrugated fastening cleats attached to each of said upper surface and said lower surface adjacent said first and third pairs of sides, said fastening cleats extending in a direction perpendicular to planes defined by said upper and lower surfaces; and a plurality of box-section end walls, each having a top and a bottom which are open, said end walls being placed over said cleats and being removably fastened thereto.
Claim 3
Dependent Claim
58 words
A cabinet in accordance with claim 1, wherein each of said cleats is formed of corrugated sheet material having corrugations extending in a direction perpendicular to the planes defined by said upper and lower surfaces, each of said box-section end walls including an interior sheet and an exterior sheet, both of which are in engagement with said corrugations.
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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) | 1991-06-28 | 1991-12-28 | 1992-06-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-06-28 | 1995-12-28 | 1996-06-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-06-28 | 1999-12-28 | 2000-06-28 | $7700.00 | Window Closed / Lapsed |