US4712157A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stud mounted non-metallic electric enclosure
Assignee: General Electric Co
•
Filing: 1987-03-16
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Granted: 1987-12-08
•
Expires: 2007-03-16
Abstract
Abstract A molded plastic load center enclosure allows the circuit breakers contained therein to be compactly aligned on one side of the enclosure. Depressions formed within the bottom of the interior surface of the enclosure produce bosses extending from the exterior surface thereof, which provide a cooling air circulatory space between the enclosure and a support wall. Metal disks inserted within the depressions provide increased thermal capacity to the enclosure interior while allowing the use of explosive charge-driven nails to attach the enclosure to the support wall without damaging the plastic material.
Inventors
- 👤 Dale E. Simonson
- 👤 Donald H. Stoll
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 20:04
CPC Classifications
H; H02; H02B; H02B1/00; H02B1/015; H02B1/04; H02B1/26; H02B1/40; H02B1/01; H02B1/012
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
79 words
A molded plastic enclosure comprising: a plastic case having electrical access means formed therein; a molded plastic cover having means for removable attachment to said case; electric circuit control means attached to a bottom interior of said case; recess means formed within said bottom on an interior surface thereof and extending outward from an exterior surface of said bottom; and metal mounting means inserted within said recess means, a fastening member passing through said metal mounting means into support.
Claim 2
Dependent Claim
79 words
A molded plastic enclosure comprising: a plastic case having electrical access means formed therein; a molded plastic cover having means for removable attachment to said case; electric circuit control means attached to a bottom interior of said case; recess means formed within said bottom on an interior surface thereof and extending outward from an exterior surface of said bottom; and metal mounting means inserted within said recess means, a fastening member passing through said metal mounting means into support.
Claim 3
Dependent Claim
25 words
The molded plastic enclosure of claim 1 wherein said electric circuit control means comprises at least one circuit breaker or at least one electric switch.
Claim 4
Dependent Claim
23 words
The molded plastic enclosure of claim 1 wherein said attachment means comprises a pair of slots formed through one edge of said cover.
Claim 5
Dependent Claim
33 words
The molded plastic enclosure of claim 3 including a pair of tabs extending from one edge of said case, said tabs extending from said case being captured within said slots through said cover.
Claim 6
Dependent Claim
16 words
The molded plastic enclosure of claim 1 wherein said metal mounting means comprise a metal disk.
Claim 7
Dependent Claim
17 words
The molded plastic enclosure of claim 5 wherein said metal disk is press-fitted within said recess means.
Claim 8
Dependent Claim
27 words
The molded plastic enclosure of claim 1 wherein said case comprises a plastic resin selected from the group consisting of polyphenylene oxide, polybutylene terepthalate and polyethylene terepthalate.
Claim 9
Dependent Claim
21 words
The molded plastic enclosure of claim 1 wherein said metal disk is selected from the group consisting of aluminum and steel.
Claim 10
Dependent Claim
17 words
The molded plastic enclosure of claim 5 wherein said metal disk is adhesively attached within said recess.
References Cited (Backward Citations)
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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) | 1990-12-07 | 1991-06-08 | 1991-12-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-12-07 | 1995-06-08 | 1995-12-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-12-07 | 1999-06-08 | 1999-12-08 | $7700.00 | Window Closed / Lapsed |