Patent US4412107A successfully refreshed from Google Patents.
US4412107A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrical conductor
Assignee: Paul Vahle GmbH and Co KG
•
Filing: 1981-07-09
•
Granted: 1983-10-25
•
Expires: 2001-07-09
Abstract
Abstract An elongated rail conductor has a rail formed with a groove for a current take-off, and a synthetic plastic housing which surrounds the rail but leaves access to the groove. The edge faces bounding the groove are inwardly offset from the corresponding edges of the casing, so that the moving current take-off cannot contact and wear the edges of the casing.
Inventors
- 👤 Willi Hillmann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 22:12
CPC Classifications
B; B60; B60M; B60M1/00; B60M1/30; B60M1/34
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
132 words
Electrically insulated single pole current-conductive conductor comprising: an elongated electrically conductive rail formed with a longitudinally extending track for a sliding current take-off; said track being bounded by two lateral faces, and an electrically insulating casing surrounding said rail and having lateral edge portions engaging said rail but permitting access to said track by leaving a passage for current take-off, said lateral faces being located in respective planes which are inwardly offset relative to said edge portions to avoid contact of the latter with a current take-off in said track, said lateral edge portions projecting over the current rail in direction of the current take-off, so that the current take-off is prevented from contacting said edge portions to avoid wear of said casing and thereby increase the service life of said rail.
Claim 2
Dependent Claim
132 words
Electrically insulated single pole current-conductive conductor comprising: an elongated electrically conductive rail formed with a longitudinally extending track for a sliding current take-off; said track being bounded by two lateral faces, and an electrically insulating casing surrounding said rail and having lateral edge portions engaging said rail but permitting access to said track by leaving a passage for current take-off, said lateral faces being located in respective planes which are inwardly offset relative to said edge portions to avoid contact of the latter with a current take-off in said track, said lateral edge portions projecting over the current rail in direction of the current take-off, so that the current take-off is prevented from contacting said edge portions to avoid wear of said casing and thereby increase the service life of said rail.
Claim 3
Dependent Claim
14 words
A conductor as defined in claim 1, wherein said casing is of synthetic plastic.
Claim 4
Dependent Claim
15 words
A conductor as defined in claim 1, wherein said casing is of generally U-shaped cross-section.
Claim 5
Dependent Claim
14 words
A conductor as defined in claim 1, wherein said rail is of sheet metal.
Claim 6
Dependent Claim
13 words
A conductor as defined in claim 1, wherein said rail is generally U-shaped.
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) | 1986-10-24 | 1987-04-25 | 1987-10-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-10-24 | 1991-04-25 | 1991-10-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-10-24 | 1995-04-25 | 1995-10-25 | $7700.00 | Window Closed / Lapsed |