US3080120A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Track insulating washers
Assignee: Individual
•
Filing: 1959-11-02
•
Granted: 1963-03-05
•
Expires: 1979-11-02
Abstract
No abstract record available.
Inventors
- 👤 Turk Harry Martin De
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 09:16
CPC Classifications
F; F16; F16B; F16B43/00; F16B43/001; E; E01; E01B; E01B9/00; E01B9/02; E01B9/04; E01B9/14
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
160 words
IN RAILROAD TRACKAGE WHEREIN THE RAIL IS SECURED TO THE TIE BY A RAILROAD SPIKE HAVING A SHANK PORTION POINTED AT ONE END WITH AN ENLARGED HEAD AT THE OTHER END ADAPTED TO OVERLAP THE RAIL FLANGE AND THUS HOLD THE RAIL TO THE TIE WHEN THE SPIKE IS DRIVEN INTO THE TIE, THE COMBINATION WITH SAID TRACKAGE OF AN INSULATING WASHER COMPRISING A BLOCK ELEMENT OF SUBSTANTIALLY NON-DEFORMABLE, NON-CONDUCTIVE MATERIAL HAVING A CENTRAL OPENING THERETHROUGH SNUGLY RECEIVING AND SURROUNDING A PORTION OF SAID SPIKE SHANK THEREIN ADJACENT SAID SPIKE HEAD, SAID BLOCK ELEMENT HAVING A FLANGE PORTION ADJACENT SAID SPIKE HEAD EXTENDING LATERALLY BEYOND THE PORTION OF SAID SPIKE HEAD OVERLAPPING SAID RAIL FLANGE, SAID BLOCK ELEMENT SURROUNDING SAID PORTION OF THE SPIKE SHANK EXTENDING ALONG SAID SHANK FROM SAID HEAD TO A POINT ALONG SAID SHANK REMOVED FROM SAID TIE WHEN SAID SPIKE IS DRIVEN INTO SAID TIE WHEREBY A GAP OCCURS BETWEEN SAID WASHER AND SAID TIE.
Claim 2
Dependent Claim
160 words
IN RAILROAD TRACKAGE WHEREIN THE RAIL IS SECURED TO THE TIE BY A RAILROAD SPIKE HAVING A SHANK PORTION POINTED AT ONE END WITH AN ENLARGED HEAD AT THE OTHER END ADAPTED TO OVERLAP THE RAIL FLANGE AND THUS HOLD THE RAIL TO THE TIE WHEN THE SPIKE IS DRIVEN INTO THE TIE, THE COMBINATION WITH SAID TRACKAGE OF AN INSULATING WASHER COMPRISING A BLOCK ELEMENT OF SUBSTANTIALLY NON-DEFORMABLE, NON-CONDUCTIVE MATERIAL HAVING A CENTRAL OPENING THERETHROUGH SNUGLY RECEIVING AND SURROUNDING A PORTION OF SAID SPIKE SHANK THEREIN ADJACENT SAID SPIKE HEAD, SAID BLOCK ELEMENT HAVING A FLANGE PORTION ADJACENT SAID SPIKE HEAD EXTENDING LATERALLY BEYOND THE PORTION OF SAID SPIKE HEAD OVERLAPPING SAID RAIL FLANGE, SAID BLOCK ELEMENT SURROUNDING SAID PORTION OF THE SPIKE SHANK EXTENDING ALONG SAID SHANK FROM SAID HEAD TO A POINT ALONG SAID SHANK REMOVED FROM SAID TIE WHEN SAID SPIKE IS DRIVEN INTO SAID TIE WHEREBY A GAP OCCURS BETWEEN SAID WASHER AND SAID TIE.
References Cited (Backward Citations)
US1001879A
Cited
US998108A
Cited
US1174478A
Cited
FR763389A
Cited
US2094279A
Cited
US2348536A
Cited
US2169097A
Cited
US2260238A
Cited
US2779543A
Cited
FR1138562A
Cited
GB825063A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-03-04 | 1966-09-03 | 1967-03-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-03-04 | 1970-09-03 | 1971-03-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-03-04 | 1974-09-03 | 1975-03-05 | $7700.00 | Window Closed / Lapsed |