Patent JPS558342A successfully refreshed from Google Patents.
Patent US4621247A successfully refreshed from Google Patents.
US4621247A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Housing for circuit breaker
Assignee: Schaltbau GmbH
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Filing: 1984-08-21
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Granted: 1986-11-04
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Expires: 2004-08-21
Abstract
Abstract A completely closed two part casing for a circuit breaker and having a first part provided with compartments for receiving a magnetic drive, a movable contact bridge and a return spring; and a second part receiving stationary contacts cooperating with the bridge when the two parts are interconnected and protectively contain the contacts and contact bridge.
Inventors
- 👤 Anton Happach
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 21:34
CPC Classifications
H; H01; H01H; H01H50/00; H01H50/02
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
105 words
In a circuit breaker configuration wherein the circuit breaker is provided with a magnetic drive and armature for operating a movable contact bridge cooperating with stationary contacts and further having return spring means and contact pressure providing springs, the improvement comprising: a two part casing comprising a first casing part provided with compartments receiving said magnetic drive, said contact bridge, and said return spring; and a second casing part receiving said stationary contacts; and said two casing parts being interconnected so that said stationary contacts face said movable contact bridge, and said contacts, bridge and drive are protectively contained inside the casing being completely closed.
Claim 2
Dependent Claim
105 words
In a circuit breaker configuration wherein the circuit breaker is provided with a magnetic drive and armature for operating a movable contact bridge cooperating with stationary contacts and further having return spring means and contact pressure providing springs, the improvement comprising: a two part casing comprising a first casing part provided with compartments receiving said magnetic drive, said contact bridge, and said return spring; and a second casing part receiving said stationary contacts; and said two casing parts being interconnected so that said stationary contacts face said movable contact bridge, and said contacts, bridge and drive are protectively contained inside the casing being completely closed.
Claim 3
Dependent Claim
69 words
Circuit breaker as in claim 1, said first part having an eye for receiving a fastener for fastening a coil-core combination of said magnetic drive to said eye and said first casing, a U shaped yoke being fastened to said coil-core combination, said magnetic drive having an armature provided with a wide opening through which said eye projects, said armature provided with actuating extension for holding said contact bridge.
Claim 4
Dependent Claim
19 words
Circuit breaker as in claim 1, said return spring being held against and tensioned against said first casing part.
Claim 5
Dependent Claim
16 words
Circuit breaker as in claim 2, said first casing part having pockets for receiving blower magnets.
Claim 6
Dependent Claim
13 words
Circuit breaker as in claim 1, said parts having partitions defining complementary chambers.
References Cited (Backward Citations)
DD53159A
Cited
US3259702A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1989-11-03 | 1990-05-05 | 1990-11-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-11-03 | 1994-05-05 | 1994-11-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-11-03 | 1998-05-05 | 1998-11-04 | $7700.00 | Window Closed / Lapsed |