US3192871A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rail lifter
Assignee: Nordberg Manufacturing Co
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Filing: 1963-02-25
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Granted: 1965-07-06
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Expires: 1983-02-25
Abstract
No abstract record available.
Inventors
- 👤 Jr Edward H Krause
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 12:05
CPC Classifications
E; E01; E01B; E01B29/00; E01B29/16; E01B29/22
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
127 words
IN A RAIL LIFTER, A FRAME ADAPTED TO SPAN THE RAILS, WHEELS ATTACHED TO THE FRAME FOR MOVING IT ALONG A RAILROAD TRACK, A PAIR OF SPACED PIVOTAL HOOKS ON EACH SIDE OF THE FRAME SAID HOOKS PIVOTING ABOUT AXES ABOVE THE RAILS, EACH PAIR OF HOOKS BEING PIVOTAL OUTWARDLY TOWARD THE RAILS AND BEING SPACED APART A DISTANCE GREATER THAN THE WIDTH OF A TIE, MANUAL MEANS FOR INDEPENDENTLY PIVOTING EACH PAIR OF HOOKS INTO POSITION TO GRIP A RAIL, FROM INSIDE, AND UNDER THE BOTTOM FLANGE OF THE RAIL, A PAIR OF FLUID RAMS MOUNTED ON THE FRAME AND POSITIONED TO APPLY AN UPTHRUST ADJACENT AND INSIDE OF EACH RAIL AND BETWEEN EACH RAIL AND THE UNDERLYING TIE, AND MEANS FOR INDEPENDENTLY OPERATING EACH RAM.
Claim 2
Dependent Claim
127 words
IN A RAIL LIFTER, A FRAME ADAPTED TO SPAN THE RAILS, WHEELS ATTACHED TO THE FRAME FOR MOVING IT ALONG A RAILROAD TRACK, A PAIR OF SPACED PIVOTAL HOOKS ON EACH SIDE OF THE FRAME SAID HOOKS PIVOTING ABOUT AXES ABOVE THE RAILS, EACH PAIR OF HOOKS BEING PIVOTAL OUTWARDLY TOWARD THE RAILS AND BEING SPACED APART A DISTANCE GREATER THAN THE WIDTH OF A TIE, MANUAL MEANS FOR INDEPENDENTLY PIVOTING EACH PAIR OF HOOKS INTO POSITION TO GRIP A RAIL, FROM INSIDE, AND UNDER THE BOTTOM FLANGE OF THE RAIL, A PAIR OF FLUID RAMS MOUNTED ON THE FRAME AND POSITIONED TO APPLY AN UPTHRUST ADJACENT AND INSIDE OF EACH RAIL AND BETWEEN EACH RAIL AND THE UNDERLYING TIE, AND MEANS FOR INDEPENDENTLY OPERATING EACH RAM.
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) | 1968-07-05 | 1969-01-04 | 1969-07-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-07-05 | 1973-01-04 | 1973-07-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-07-05 | 1977-01-04 | 1977-07-06 | $7700.00 | Window Closed / Lapsed |