US4782583A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of assembling a molded case circuit breaker crossbar
Assignee: General Electric Co
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Filing: 1987-07-27
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Granted: 1988-11-08
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Expires: 2007-07-27
Abstract
Abstract A molded case circuit breaker crossbar assembly allows the movable contact carrier, contact spring and contact carrier operating cam to be preassembled prior to insertion within the circuit breaker case. The crossbar is fabricated from a plastic molding composition having slots thereon for supporting the movable contact carrier and for retaining the charged contact operating spring. The contact carrier operating cam engages a roller carried by the operating mechanism link to couple the crossbar assembly to the circuit breaker operating mechanism.
Inventors
- 👤 Roger N. Castonguay
- 👤 David Arnold
- 👤 David J. Meiners
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 06:33
CPC Classifications
H; H01; H01H; H01H1/00; H01H1/12; H01H1/14; H01H1/22; H01H1/221; H01H1/225; H01H1/24; H01H2001/223; H01H77/00; H01H77/02; H01H77/10; H01H77/102; H01H77/104; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/49105
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
117 words
A method of assembling a molded case circuit breaker comprising the steps of: providing a circuit breaker case having a first contact arranged on a bottom surface; inserting a part of a contact carrier having a second contact at one end within a slotted crossbar assembly; positioning a crossover loop of a contact spring within means formed on a top surface of said contact carrier; rotating said contact spring and trapping ends of said contact spring under detent projections formed on said crossbar assembly to bias said contact spring against said contact carrier; and inserting said crossbar assembly, contact carrier and contact spring within said circuit breaker case with said first and second contacts in operational alignment.
Claim 2
Independent Claim
117 words
A method of assembling a molded case circuit breaker comprising the steps of: providing a circuit breaker case having a first contact arranged on a bottom surface; inserting a part of a contact carrier having a second contact at one end within a slotted crossbar assembly; positioning a crossover loop of a contact spring within means formed on a top surface of said contact carrier; rotating said contact spring and trapping ends of said contact spring under detent projections formed on said crossbar assembly to bias said contact spring against said contact carrier; and inserting said crossbar assembly, contact carrier and contact spring within said circuit breaker case with said first and second contacts in operational alignment.
Claim 3
Dependent Claim
19 words
The method of claim 1 including the steps of: positioning a contact carrier operating cam on said crossbar assembly.
Claim 4
Dependent Claim
36 words
The method of claim 2 including the steps of: inserting a contact carrier operating mechanism assembly within said circuit breaker case; and positioning a roller on said operating mechanism assembly against said contact carrier operating cam.
Claim 5
Dependent Claim
26 words
The method of claim 1 further including the steps of inserting a trip unit within said circuit breaker case proximate said contact carrier operating mechanism assembly.
Claim 6
Dependent Claim
17 words
The method of claim 1 wherein said contact carrier is inserted within a U-shaped contact carrier support.
Claim 7
Dependent Claim
35 words
The method of claim 1 including the steps of inserting a pair of cylinders extending from opposing sides of said slotted crossbar assembly within corresponding slots formed within opposing sides of said circuit breaker case.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1991-11-08 | 1992-05-09 | 1992-11-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-11-08 | 1996-05-09 | 1996-11-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-11-08 | 2000-05-09 | 2000-11-08 | $7700.00 | Window Closed / Lapsed |