US4117428A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electro-magnetic switching apparatus having electrically separated contact elements
Assignee: Siemens AG
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Filing: 1977-05-10
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Granted: 1978-09-26
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Expires: 1997-05-10
Abstract
Abstract An improved electromagnetic switching apparatus including a housing, a plurality of movable contact bridges mounted on a contact bridge carrier, first fixed contact elements which extend around one end of the contact bridges and are coupled to terminal elements for the first fixed contact elements, and electrically-separated second fixed contact elements disposed at the other end of the contact bridges on both sides thereof. The improvement of the invention comprises the provision of means for selectively electrically connecting the second fixed contact elements to a common terminal element.
Inventors
- 👤 Georg Streich
- 👤 Johann Bauer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 05:23
CPC Classifications
H; H01; H01H; H01H50/00; H01H50/54; H01H50/546; H01H11/00; H01H11/0006; H01H11/0012
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
85 words
In an electromagnetic switching apparatus including a housing, a plurality of movable contact bridges mounted on a contact bridge carrier, first fixed contact elements which extend around one end of said contact bridges and are coupled to terminal elements for said first fixed contact elements, and electrically-separated second fixed contact elements disposed at the other end of said contact bridges on both sides of said contact bridges, the improvement comprising means for selectively electrically connecting said second fixed contact elements to a common terminal element.
Claim 2
Dependent Claim
85 words
In an electromagnetic switching apparatus including a housing, a plurality of movable contact bridges mounted on a contact bridge carrier, first fixed contact elements which extend around one end of said contact bridges and are coupled to terminal elements for said first fixed contact elements, and electrically-separated second fixed contact elements disposed at the other end of said contact bridges on both sides of said contact bridges, the improvement comprising means for selectively electrically connecting said second fixed contact elements to a common terminal element.
Claim 3
Dependent Claim
19 words
The improvement recited in claim 1, wherein said connecting means comprises a plurality of slidable, electrically-conductive intermediate part members.
Claim 4
Dependent Claim
18 words
The improvement recited in claim 1, wherein said connecting means comprises a plurality of rotatable spring-loaded electrically-conductive brackets.
Claim 5
Dependent Claim
40 words
The improvement recited in claim 3, wherein said spring-loaded brackets are disposed in a plurality of cylinders each rotatably mounted in said housing with the longitudinal axis thereof disposed transversely with respect to the longitudinal axes of said contact bridges.
Claim 6
Dependent Claim
12 words
The improvement recited in claim 3, wherein said brackets include detent means.
Claim 7
Dependent Claim
17 words
The improvement recited in claim 1, wherein said connecting means comprises a plurality of electrically-conductive plug members.
Claim 8
Dependent Claim
17 words
The improvement recited in claim 1, wherein said connecting means comprise a plurality of electrically-conductive clamp connectors.
Claim 9
Dependent Claim
26 words
The improvement recited in claim 1, wherein said connecting means are mounted in a plurality of separate housing parts which are detachably mounted on said housing.
Claim 10
Dependent Claim
34 words
The improvement recited in claim 1, further comprising position markings disposed on a front side of said housing for indicating said selective electrical connection of said fixed contact elements to said common terminal element.
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) | 1981-09-25 | 1982-03-27 | 1982-09-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-09-25 | 1986-03-27 | 1986-09-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-09-25 | 1990-03-27 | 1990-09-26 | $7700.00 | Window Closed / Lapsed |