US4407203A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Railroad tank car lift lug
Assignee: CTC INVESTMENTS Inc
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Filing: 1981-05-11
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Granted: 1983-10-04
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Expires: 2001-05-11
Abstract
Abstract A lift lug for receiving and securing a lifting device to a railroad tank car for re-railing the tank car. The lift lug includes a bolster pad mounted adjacent an end of the tank car and a vertically disposed bolster web, the bolster web having a substantially horizontal extending upper edge. A substantially horizontal base plate is mounted on the extended upper edge of the bolster web with an inner edge of the horizontal base plate secured to the bolster pad. A substantially vertical lift lug plate has its upper edge secured to the bolster pad and its lower edge secured to the base plate. A pair of generally triangular lift lug webs each have their lower edges secured to the base plate, their outer edge secured to the bolster pad. The lift lug plate has an opening adjacent its lower edge.
Inventors
- 👤 Wayne D. Harbin
- 👤 Marvin Stark
- 👤 Kenneth W. Britt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 13:20
CPC Classifications
B; B61; B61K; B61K5/00; B61K5/02
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
155 words
A railroad tank car lift lug for receiving and securing a lifting device to a tank car, comprising: a bolster pad mounted adjacent an end of the tank car; a vertically disposed bolster web depending from said bolster pad, said bolster web having a substantially horizontal extending upper edge; a substantially horizontal base plate mounted on said extended upper edge of said bolster web with an inner edge of said horizontal base plate secured to said bolster pad; a substantially vertical lift lug plate with an upper edge secured to said bolster pad and a lower edge secured to said base plate; a pair of generally triangular lift lug webs each having a lower edge secured to said base plate, an outer edge secured to said lift lug plate and an inner edge secured to said bolster pad; and said lift lug plate having an opening adjacent said lower edge of said lift lug plate.
Claim 2
Dependent Claim
155 words
A railroad tank car lift lug for receiving and securing a lifting device to a tank car, comprising: a bolster pad mounted adjacent an end of the tank car; a vertically disposed bolster web depending from said bolster pad, said bolster web having a substantially horizontal extending upper edge; a substantially horizontal base plate mounted on said extended upper edge of said bolster web with an inner edge of said horizontal base plate secured to said bolster pad; a substantially vertical lift lug plate with an upper edge secured to said bolster pad and a lower edge secured to said base plate; a pair of generally triangular lift lug webs each having a lower edge secured to said base plate, an outer edge secured to said lift lug plate and an inner edge secured to said bolster pad; and said lift lug plate having an opening adjacent said lower edge of said lift lug plate.
Claim 3
Dependent Claim
17 words
The structure set forth in claim 1, wherein: said lift lug plate opening has an inverted V-shape.
Claim 4
Dependent Claim
41 words
The structure set forth in claim 1, wherein: said lift lug plate is curved adjacent to said lift lug plate upper edge such that said lift lug plate upper edge is mounted with said bolster web at substantially a right angle.
Claim 5
Dependent Claim
39 words
The structure set forth in claim 1, including: a side cover plate mounted perpendicularly by an upper edge to the outer edge of and below said horizontal base plate and mounted to the outer edge of said bolster web.
Claim 6
Dependent Claim
180 words
A railroad tank car lift lug for receiving and securing a lifting device to a tank car, comprising: a bolster pad mounted adjacent an end of the tank car; a vertically disposed bolster web depending from said bolster pad, said bolster web having a substantially horizontal extending upper edge; a substantially horizontal base plate mounted on said extended upper edge of said bolster web with an inner edge of said horizontal base plate secured to said bolster pad; a substantially vertical lift lug plate with an upper edge secured to said bolster pad and a lower edge secured to said base plate; a generally triangular lift lug web having a lower edge secured adjacent to the center line of said base plate, an outer edge secured adjacent to the center line of said lift lug plate and an inner edge secured to said bolster pad; said lift lug web having portions defining a generally semicircular opening adjacent said lift lug web outer edge; and said lift lug plate having an opening adjacent said lower edge of said lift lug plate.
Claim 7
Dependent Claim
180 words
A railroad tank car lift lug for receiving and securing a lifting device to a tank car, comprising: a bolster pad mounted adjacent an end of the tank car; a vertically disposed bolster web depending from said bolster pad, said bolster web having a substantially horizontal extending upper edge; a substantially horizontal base plate mounted on said extended upper edge of said bolster web with an inner edge of said horizontal base plate secured to said bolster pad; a substantially vertical lift lug plate with an upper edge secured to said bolster pad and a lower edge secured to said base plate; a generally triangular lift lug web having a lower edge secured adjacent to the center line of said base plate, an outer edge secured adjacent to the center line of said lift lug plate and an inner edge secured to said bolster pad; said lift lug web having portions defining a generally semicircular opening adjacent said lift lug web outer edge; and said lift lug plate having an opening adjacent said lower edge of said lift lug plate.
Claim 8
Dependent Claim
17 words
The structure set forth in claim 5, wherein: said lift lug plate has an inverted V-shaped opening.
Claim 9
Dependent Claim
41 words
The structure set forth in claim 5, wherein: said lift lug plate is curved adjacent to said lift lug plate upper edge such that said lift lug plate upper edge is mounted with said bolster web at substantially a right angle.
Claim 10
Dependent Claim
37 words
The lift lug assembly of claim 5, including: a side cover plate mounted perpendicularly by an upper edge to the outer edge of said horizontal base plate and mounted to the outer edge of said bolster web.
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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) | 1986-10-03 | 1987-04-04 | 1987-10-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-10-03 | 1991-04-04 | 1991-10-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-10-03 | 1995-04-04 | 1995-10-04 | $7700.00 | Window Closed / Lapsed |