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US3602674A
Expired / Lapsed
US
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Circuit breaker with locking and releasing train including adjustable rotatably mounted plate bars
Assignee: Hundt and Weber GmbH
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Filing: 1969-03-04
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Granted: 1971-08-31
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Expires: 1989-03-04
Abstract
Abstract This invention relates to a circuit breaker and, more particularly, to a circuit breaker with a locking and releasing train containing a series of levers so organized that the operation of the circuit breaker can be accurately controlled at the final lever in the series, which final lever is remote from the circuit breaking function.
Inventors
- 👤 Wolfgang Walter Koennecke
- 👤 Gerhard Schleifenbaum
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 11:00
CPC Classifications
H; H01; H01H; H01H71/00; H01H71/74; H01H73/00; H01H73/48; H01H73/50
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
277 words
A circuit breaker having a locking and releasing train consisting of a. a circuit breaker housing, b. plate bars rotatably mounted in the housing and having a first position in which the circuit breaker circuit is closed and a second position in which the circuit breaker circuit is open, c. an arresting lever rotatably mounted in the housing, having a first and a second position which bring about corresponding positions in the contacting means and having a pin extending from it parallel to its axis of rotation, d. a rocker rotatably mounted in the housing and residing generally in a first position but movable to a second position when acted upon by the circuit breaking sensors of the circuit breaker, and e. an intermediate lever rotatably mounted in the housing, biased in a second position which allows the arresting lever to move to its second position, but capable of entering a first position in which it is held by the rocker when said rocker is in its first position but not held when said rocker is in its second position and, when said intermediate lever is in said first position, it forces said arresting lever to enter its said first position by engaging the pin of the arresting lever with an open-ended slot in said intermediate lever, the arresting lever having a pin engageable in a one-sided open slot on the intermediate lever, the extended side of the slot bringing the intermediate lever into operative position by engagement with the pin, the carrying side of the slot in its support area being slightly sloped in a manner which is favorable to the release of the arresting lever.
Claim 2
Dependent Claim
277 words
A circuit breaker having a locking and releasing train consisting of a. a circuit breaker housing, b. plate bars rotatably mounted in the housing and having a first position in which the circuit breaker circuit is closed and a second position in which the circuit breaker circuit is open, c. an arresting lever rotatably mounted in the housing, having a first and a second position which bring about corresponding positions in the contacting means and having a pin extending from it parallel to its axis of rotation, d. a rocker rotatably mounted in the housing and residing generally in a first position but movable to a second position when acted upon by the circuit breaking sensors of the circuit breaker, and e. an intermediate lever rotatably mounted in the housing, biased in a second position which allows the arresting lever to move to its second position, but capable of entering a first position in which it is held by the rocker when said rocker is in its first position but not held when said rocker is in its second position and, when said intermediate lever is in said first position, it forces said arresting lever to enter its said first position by engaging the pin of the arresting lever with an open-ended slot in said intermediate lever, the arresting lever having a pin engageable in a one-sided open slot on the intermediate lever, the extended side of the slot bringing the intermediate lever into operative position by engagement with the pin, the carrying side of the slot in its support area being slightly sloped in a manner which is favorable to the release of the arresting lever.
Claim 3
Dependent Claim
34 words
A circuit breaker as recited in claim 1, wherein the slope of the carrying side of slot increases constantly in slope in an area outside of the pin support area in the intermediate lever.
Claim 4
Dependent Claim
256 words
A circuit breaker having a locking and releasing train consisting of a. a circuit breaker housing, b. plate bars rotatably mounted in the housing and having a first position in which the circuit breaker circuit is closed and a second position in which the circuit breaker circuit is open, c. an arresting lever rotatably mounted in the housing, having a first and a second position which bring about corresponding positions in the contacting means and having a pin extending from it parallel to its axis of rotation, d. a rocker rotatably mounted in the housing and residing generally in a first position but movable to a second position when acted upon by the circuit breaking sensors of the circuit breaker, e. an intermediate lever rotatably mounted in the housing, biased in a second position which allows the arresting lever to move to its second position, but capable of entering a first position in which it is held by the rocker when said rocker is in its first position but not held when said rocker is in its second position and, when said intermediate lever is in said first position, it forces said arresting lever to enter its said first position by engaging the pin of the arresting lever with an open-ended slot in said intermediate lever, and f. a support member for engagement by the free end of the intermediate lever, a bearing plate connecting the plate bars swingably to the lower part of the rocker, which part has an operating lever for a release magnet.
Claim 5
Dependent Claim
256 words
A circuit breaker having a locking and releasing train consisting of a. a circuit breaker housing, b. plate bars rotatably mounted in the housing and having a first position in which the circuit breaker circuit is closed and a second position in which the circuit breaker circuit is open, c. an arresting lever rotatably mounted in the housing, having a first and a second position which bring about corresponding positions in the contacting means and having a pin extending from it parallel to its axis of rotation, d. a rocker rotatably mounted in the housing and residing generally in a first position but movable to a second position when acted upon by the circuit breaking sensors of the circuit breaker, e. an intermediate lever rotatably mounted in the housing, biased in a second position which allows the arresting lever to move to its second position, but capable of entering a first position in which it is held by the rocker when said rocker is in its first position but not held when said rocker is in its second position and, when said intermediate lever is in said first position, it forces said arresting lever to enter its said first position by engaging the pin of the arresting lever with an open-ended slot in said intermediate lever, and f. a support member for engagement by the free end of the intermediate lever, a bearing plate connecting the plate bars swingably to the lower part of the rocker, which part has an operating lever for a release magnet.
Claim 6
Dependent Claim
47 words
A circuit breaker as recited in claim 3, wherein the parts of the rocker are swingably connected with each other and one upper part has support strips which have the shape of a wedge on which the lower part is supported by means of an extended lever.
Claim 7
Dependent Claim
18 words
A circuit breaker as recited in claim 4, wherein the extended lever is designed as a swing lever.
Claim 8
Dependent Claim
25 words
A circuit breaker as recited in claim 4, wherein the end of the extended lever is provided with an adjusting screw which engages a wedge.
Claim 9
Dependent Claim
26 words
A circuit breaker as recited in claim 3, wherein the part of the rocker to be displaced is equipped with a fork surrounding an adjusting pin.
Claim 10
Dependent Claim
31 words
A circuit breaker as recited in claim 7, wherein the adjusting pin is located in an adjusting disc having the adjusting pin located out of center and engageable with the fork.
Claim 11
Dependent Claim
37 words
A circuit breaker as recited in claim 8, wherein the adjusting disc is mounted within the cover of the housing and the disc is equipped with a mark which permits reading of a scale surrounding the disc.
Claim 12
Dependent Claim
31 words
A circuit breaker as recited in claim 5, wherein the swing lever in its center position extends up into the lower portion of a slot in the cover of the housing.
Claim 13
Dependent Claim
24 words
A circuit breaker as recited in claim 10, wherein the slot is equipped with a transparent, removable cover plate and also with a scale.
Claim 14
Dependent Claim
30 words
A circuit breaker as recited in claim 4, wherein bolts of the lower part of the rocker are kept under tension by springs within the castings of the upper part.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-08-30 | 1975-03-01 | 1975-08-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-08-30 | 1979-03-01 | 1979-08-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-08-30 | 1983-03-01 | 1983-08-31 | $7700.00 | Window Closed / Lapsed |