Patent US4392433A successfully refreshed from Google Patents.
US4392433A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Railway maintenance machine
Assignee: RAILROAD SERVICE Inc A CORP OF
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Filing: 1980-08-07
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Granted: 1983-07-12
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Expires: 2000-08-07
Abstract
Abstract A railway maintenance machine including a carriage or body portion (22) and a boom (38) extending therefrom and functioning to remove railroad ties (88) from a railway bed and insert new ties in place thereof, is disclosed. Latch arms (90), mounted to the underside of the vehicle body (22) can be provided to lock rail portions of the track (86) to the body (22) so that, when the body (22) is jacked up by means provided for this purpose, the tracks (86) will be elvated also. The boom (38) mounts a working element (40) which includes angularly spaced removing and inserting arms (98, 100) which are rotatable to effect removal and insertion of ties (88).
Inventors
- 👤 Clifford A. Nyland
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 19:05
CPC Classifications
E; E01; E01B; E01B29/00; E01B29/06; E01B29/09; E01B29/10
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
129 words
A device for removing old railroad ties from beneath an elevated length of track and inserting new ties in place of those removed, comprising: (a) a working member including (i) a removing arm having first and second ends and a plurality of tie engagement elements at said second end, said removing arm disposed for movement generally about said first end; and (ii) an inserting arm having first and second ends and a tie lifting lip mounted at said second end of said inserting arm generally perpendicular thereto, said inserting arm fixed relative to said removing arm and spaced angularly therefrom for movement generally about its said first end; and (b) means for imparting rotational movement to said working member with said arms moving generally about their said first ends.
Claim 2
Independent Claim
129 words
A device for removing old railroad ties from beneath an elevated length of track and inserting new ties in place of those removed, comprising: (a) a working member including (i) a removing arm having first and second ends and a plurality of tie engagement elements at said second end, said removing arm disposed for movement generally about said first end; and (ii) an inserting arm having first and second ends and a tie lifting lip mounted at said second end of said inserting arm generally perpendicular thereto, said inserting arm fixed relative to said removing arm and spaced angularly therefrom for movement generally about its said first end; and (b) means for imparting rotational movement to said working member with said arms moving generally about their said first ends.
Claim 3
Dependent Claim
22 words
The device of claim 1 wherein said inserting arm is spaced angularly from said removing arm between 80 degrees and 135 degrees.
Claim 4
Dependent Claim
19 words
The device of claim 2 wherein said inserting arm is spaced angularly from said removing arm substantially 95 degrees.
Claim 5
Dependent Claim
21 words
The device of claim 3 wherein said lip extends from said inserting arm in a direction away from said removing arm.
Claim 6
Dependent Claim
22 words
The device of claim 1 wherein said tie engagement elements comprise tines extending longitudinally from said second end of said removing arm.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1986-07-11 | 1987-01-10 | 1987-07-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-07-11 | 1991-01-10 | 1991-07-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-07-11 | 1995-01-10 | 1995-07-12 | $7700.00 | Window Closed / Lapsed |