Patent US3818170A successfully refreshed from Google Patents.
US3818170A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Contact bridge
Assignee: Siemens AG
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Filing: 1972-12-11
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Granted: 1974-06-18
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Expires: 1992-12-11
Abstract
Abstract A contact bridge is disclosed which includes a tray-like structure having a bottom wall and a composite rim at the perimeter of the bottom wall. The structure is made from a bendable flat member consisting of a central portion and at least two margin strips integral with the central portion. The margin strips are bent along lines coincident with respective portions of the perimeter and configured to conjointly form the composite rim. Contact overlays are mounted on respective portions of the outer side of the bottom wall of the tray-like structure. The contact bridge is simple to manufacture and has a relatively high strength.
Inventors
- 👤 S Seidel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 16:20
CPC Classifications
H; H01; H01H; H01H1/00; H01H1/12; H01H1/14; H01H1/20
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
149 words
A conact bridge comprising a tray-like structure having a bottom wall and a composite rim at the perimeter of the said bottom wall, said structure being made from a bendable flat member consisting of a central portion longitudinally extended and defining a longitudinal axis, and two margin strips integral with said central portion extending in the direction of said axis, said margin strips being bent along lines coincident with respective portions of said perimeter and configured to conjointly form said composite rim, each of said margin strips having respective end portions, the end portions of said margin strips at the respective longitudinal end regions of said central portion being bent towards each other to form respective end faces of said structure, respective arc burnoff pieces mounted at said end faces, and contact overlays mounted on respective portions of the outer side of said bottom wall of said tray-like structure.
Claim 2
Dependent Claim
149 words
A conact bridge comprising a tray-like structure having a bottom wall and a composite rim at the perimeter of the said bottom wall, said structure being made from a bendable flat member consisting of a central portion longitudinally extended and defining a longitudinal axis, and two margin strips integral with said central portion extending in the direction of said axis, said margin strips being bent along lines coincident with respective portions of said perimeter and configured to conjointly form said composite rim, each of said margin strips having respective end portions, the end portions of said margin strips at the respective longitudinal end regions of said central portion being bent towards each other to form respective end faces of said structure, respective arc burnoff pieces mounted at said end faces, and contact overlays mounted on respective portions of the outer side of said bottom wall of said tray-like structure.
Claim 3
Dependent Claim
22 words
The contact bridge of claim 1 comprising a contact pressure spring configured so as to force-lock hold said burnoff pieces in place.
Claim 4
Dependent Claim
16 words
The contact bridge of claim 1, said burnoff pieces being soldered to said end faces respectively.
Claim 5
Dependent Claim
33 words
The contact bridge of claim 1, said contact overlays and said burnoff pieces being soldered to said tray-like structure, and said margin strips being soldered to said central portion and to each other.
Claim 6
Dependent Claim
13 words
The contact bridge of claim 1, said burnoff pieces being made of aluminum.
Claim 7
Dependent Claim
24 words
The contact bridge of claim 1, each of said burnoff pieces having a groove for accommodating a corresponding one of said end faces therein.
Claim 8
Dependent Claim
51 words
The contact bridge of claim 6, said burnoff pieces having respective end walls facing each other, each of said end walls being provided with a step, and a contact pressure spring having respective ends and being mounted so as to be supported at said ends by respective ones of said steps.
Claim 9
Dependent Claim
35 words
The contact bridge of claim 1, said contact overlays being mounted so as to project outwardly from said end faces respectively, said burnoff pieces being mounted on the projecting portions of said contact overlays respectively.
Claim 10
Dependent Claim
20 words
The contact bridge of claim 8, said burnoff pieces being soldered to said projecting portions of said contact overlays respectively.
Claim 11
Dependent Claim
89 words
The contact bridge of claim 1, each of said margin strips having respective end portions, the end portions of said margin strips at the respective longitudinal end regions of said central portion being bent toward each other to form respective end faces of said structure, said flat member being sheared determined distances along each of said lines so as to cause the longitudinal end regions of said central portion to extend out past said end faces to form balcony-like projections when said end portions are bent toward each other.
Claim 12
Dependent Claim
26 words
The contact bridge of claim 10 comprising respective arc burnoff pieces mounted on said projections so as to lie against corresponding ones of said end faces.
Claim 13
Dependent Claim
22 words
The contact bridge of claim 11 comprising a contact pressure spring configured so as to force-lock hold said burnoff pieces in place.
Claim 14
Dependent Claim
33 words
The contact bridge of claim 11, said contact overlays and said burnoff pieces being soldered to said tray-like structure, and said margin strips being soldered to said central portion and to each other.
Claim 15
Dependent Claim
13 words
The contact bridge of claim 11, said burnoff pieces being made of aluminum.
Claim 16
Dependent Claim
36 words
The contact bridge of claim 10 comprising respective burnoff pieces mounted at corresponding ones of said end faces, each of said burnoff pieces having a groove for accommodating a corresponding one of said end faces therein.
Claim 17
Dependent Claim
51 words
The contact bridge of claim 15, said burnoff pieces having respective end walls facing each other, each of said end walls being provided with a step, and a contact pressure spring having respective ends and being mounted so as to be supported at said ends by respective ones of said steps.
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) | 1977-06-17 | 1977-12-17 | 1978-06-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-06-17 | 1981-12-17 | 1982-06-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-06-17 | 1985-12-17 | 1986-06-18 | $7700.00 | Window Closed / Lapsed |