Patent US4742608A successfully refreshed from Google Patents.
US4742608A
Expired / Lapsed
US
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Method of retaining molded case circuit breakers
Assignee: General Electric Co
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Filing: 1987-03-20
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Granted: 1988-05-10
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Expires: 2007-03-20
Abstract
Abstract Molded case circuit breakers having rear mounted line connectors are provided with retainer clips and plates to prevent easy removal of the breakers from electric panel box load stab connectors. The breakers can be removed for replacement however, without disassembling the entire electrical panel box.
Inventors
- 👤 Andre J. M'Sadoques
- 👤 Robert J. Sabatella
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 06:08
CPC Classifications
H; H02; H02B; H02B1/00; H02B1/015; H02B1/04; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49826; Y10T29/49863; Y10T29/49876; Y10T29/49947
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
118 words
A method for retaining a back-fed main circuit breaker within an electric panel box enclosure having a mounting pan therein, said pan having opposite sides with external hook portions thereon, comprising the steps of: A. providing a spring clip retainer on a portion of a molded case circuit breaker at an end of said case opposite a mounting foot on said case; and B. inserting said circuit breaker within an electric panel enclosure to engage said mounting foot on said case with an external hook portion on one side of the pan, and then engaging a portion of said spring clip retainer with the external hook portion on the other side of the mounting pan within said enclosure.
Claim 2
Independent Claim
118 words
A method for retaining a back-fed main circuit breaker within an electric panel box enclosure having a mounting pan therein, said pan having opposite sides with external hook portions thereon, comprising the steps of: A. providing a spring clip retainer on a portion of a molded case circuit breaker at an end of said case opposite a mounting foot on said case; and B. inserting said circuit breaker within an electric panel enclosure to engage said mounting foot on said case with an external hook portion on one side of the pan, and then engaging a portion of said spring clip retainer with the external hook portion on the other side of the mounting pan within said enclosure.
Claim 3
Dependent Claim
38 words
The method of claim 1 wherein the step of engaging said spring clip retainer with said mounting pan comprises the extension of a V-shaped portion of said spring clip retainer under a hook-shaped extension on said mounting pan.
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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) | 1991-05-10 | 1991-11-09 | 1992-05-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-05-10 | 1995-11-09 | 1996-05-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-05-10 | 1999-11-09 | 2000-05-10 | $7700.00 | Window Closed / Lapsed |