US3564112A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Box for enclosure fof electrical equipment
Assignee: ELEKTROVERKEN I GAVLE AB
•
Filing: 1969-03-04
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Granted: 1971-02-16
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Expires: 1989-03-04
Abstract
Abstract Box for enclosure of electrical equipment which is formed of sidewalls manufactured as separate elements by precision casting and of a bottom, each of which parts is sealed by a bonding agent with the adjoining sidewalls through engaging devices in the edges of the sidewalls.
Inventors
- 👤 Seven Erki Algotsson
- 👤 Sune Hugo Ivan Lorentzon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 23:40
CPC Classifications
H; H02; H02B; H02B1/00; H02B1/26; H02B1/40; H02B1/01; H02B1/012
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
125 words
A box for enclosure of electrical equipment, comprising sidewalls and a bottom, manufactured as separate elements by precision casting, each of which parts is in engagement with the adjoining sidewalls by engaging devices in the edges of the sidewalls, in which the engaging devices in each sidewall for engagement with an adjoining sidewall are essentially perpendicular to the plane of the sidewall and the engaging devices in the opposite edge of the sidewall are essentially parallel with said plane, the engaging devices consisting of parallel rows extending side by side along the entire edges of the sidewalls, each one of the rows being formed of elongated ribs interrupted by cutouts, the ribs in each row being positioned adjacent to the cutouts in an adjoining row.
Claim 2
Dependent Claim
125 words
A box for enclosure of electrical equipment, comprising sidewalls and a bottom, manufactured as separate elements by precision casting, each of which parts is in engagement with the adjoining sidewalls by engaging devices in the edges of the sidewalls, in which the engaging devices in each sidewall for engagement with an adjoining sidewall are essentially perpendicular to the plane of the sidewall and the engaging devices in the opposite edge of the sidewall are essentially parallel with said plane, the engaging devices consisting of parallel rows extending side by side along the entire edges of the sidewalls, each one of the rows being formed of elongated ribs interrupted by cutouts, the ribs in each row being positioned adjacent to the cutouts in an adjoining row.
Claim 3
Dependent Claim
25 words
A box according to claim 1, in which the engaging devices in the sidewalls for engaging the bottom of the box comprise an interrupted slot.
Claim 4
Dependent Claim
23 words
A box according to claim 1 in which the ribs and cutouts have deformable bosses on their lateral surfaces for reinforcing the engagement.
Claim 5
Dependent Claim
58 words
A box according to claim 1, in which the bottom edges of the sidewalls are provided with cutouts, the bottom of which are parallel to the plane at the outer surface of the bottom of the box, for accommodating external lugs for the box which can be fastened to the bottom of the box by means of screws.
Claim 6
Dependent Claim
42 words
A box according to claim 1 in which the sidewalls are provided with cutouts for accommodating fastening elements, and designed for mounting of electrical equipment in the enclosed box and for suspension of the box by means of an internal fastening screw.
Claim 7
Dependent Claim
34 words
A box according to claim 1, in which each of the sidewalls has at its edge remote from the bottom a front strip which has a stepped form at the corners of the sidewalls.
Claim 8
Dependent Claim
45 words
A box according to claim 1, in which the sidewalls formed as separate elements are sized for adaption to a modular system, whereby a large sidewall in a box of a given size coincides with a smaller sidewall in the next larger size of box.
Claim 9
Dependent Claim
21 words
A box according to claim 1, in which the front edges of the sidewalls have lugs for fitting of a cover.
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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) | 1974-02-15 | 1974-08-17 | 1975-02-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-02-15 | 1978-08-17 | 1979-02-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-02-15 | 1982-08-17 | 1983-02-16 | $7700.00 | Window Closed / Lapsed |