US3658246A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Railway rail-fastening member and a railway rail and fastening arrangement incuding the member
Assignee: Lockspike Ltd
•
Filing: 1970-01-15
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Granted: 1972-04-25
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Expires: 1990-01-15
Abstract
Abstract A resilient rail clip has a flat surface where it bears downwardly upon electrically insulating material placed on the flange of a railway rail. The clip is elsewhere of circular cross section.
Inventors
- 👤 Geoffrey Peter Davies
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 20:44
CPC Classifications
E; E01; E01B; E01B9/00; E01B9/02; E01B9/28; E01B9/30; E01B9/303
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
186 words
A railway rail and fastening arrangement including a railway rail having a base or flange, electrically insulating material on top of the rail base or flange and a resilient rail clip comprising a single length of resilient metal of rod form which has a circular cross section over the greater part of its length and is bent so as to have, progressing from one end of the length of metal to the other, a first portion in the form of a substantially straight leg substantially parallel to the length of the rail, then a second portion, then a third portion, then a fourth portion, then a fifth portion, these portions being such that when the clip is viewed from above the third and fifth portions appear to be on opposite sides of the axis of the first portion, one of the third and fifth portions having on its underneath side a flat surface extending along a short length of it, wholly between the two ends of the length of metal of rod form and in surface contact with and bearing downwardly upon the electrically insulating material.
Claim 2
Dependent Claim
186 words
A railway rail and fastening arrangement including a railway rail having a base or flange, electrically insulating material on top of the rail base or flange and a resilient rail clip comprising a single length of resilient metal of rod form which has a circular cross section over the greater part of its length and is bent so as to have, progressing from one end of the length of metal to the other, a first portion in the form of a substantially straight leg substantially parallel to the length of the rail, then a second portion, then a third portion, then a fourth portion, then a fifth portion, these portions being such that when the clip is viewed from above the third and fifth portions appear to be on opposite sides of the axis of the first portion, one of the third and fifth portions having on its underneath side a flat surface extending along a short length of it, wholly between the two ends of the length of metal of rod form and in surface contact with and bearing downwardly upon the electrically insulating material.
References Cited (Backward Citations)
US754693A
Cited
US2144413A
Cited
US2158057A
Cited
FR1058879A
Cited
US3021076A
Cited
US3297253A
Cited
GB1126697A
Cited
US3338521A
Cited
US3463394A
Cited
US3460756A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-04-25 | 1975-10-25 | 1976-04-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-04-25 | 1979-10-25 | 1980-04-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-04-25 | 1983-10-25 | 1984-04-25 | $7700.00 | Window Closed / Lapsed |