US4094253A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Railway truck floating pedestal wear liner
Assignee: Polymer Corp
•
Filing: 1976-07-26
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Granted: 1978-06-13
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Expires: 1996-07-26
Abstract
Abstract A pedestal liner for railroad trucks is disclosed in which the liner is not bolted to the pedestal leg, but instead is allowed to "float" -- that is, to move relative both to the journal box and to the pedestal leg.
Inventors
- 👤 Paul E. Gage
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 02:58
CPC Classifications
B; B61; B61F; B61F5/00; B61F5/26; B61F5/30; B61F5/32
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
142 words
In a pedestal truck for railroad locomotives including: a pair of spaced-apart, vertically-disposed pedestal legs that define a jaw open at its lower end; a journal box mounted within the jaw in vertical sliding relationship to the pedestal legs; a pedestal tie bar extending between the ends of the pedestal legs closing the lower end of the jaw; generally channel-shaped pedestal liners made from tough, wear-resistant plastic mounted on each of the pedestal legs with the bight of the channels facing the journal box and interposed as bearing surfaces between the journal box and the pedestal legs and with the sides of the channels extending over a portion of the side faces of the pedestal legs; the improvement comprising mounting the pedestal liners in sliding frictional engagement with the journal box on one side and the pedestal legs on the other side.
Claim 2
Dependent Claim
142 words
In a pedestal truck for railroad locomotives including: a pair of spaced-apart, vertically-disposed pedestal legs that define a jaw open at its lower end; a journal box mounted within the jaw in vertical sliding relationship to the pedestal legs; a pedestal tie bar extending between the ends of the pedestal legs closing the lower end of the jaw; generally channel-shaped pedestal liners made from tough, wear-resistant plastic mounted on each of the pedestal legs with the bight of the channels facing the journal box and interposed as bearing surfaces between the journal box and the pedestal legs and with the sides of the channels extending over a portion of the side faces of the pedestal legs; the improvement comprising mounting the pedestal liners in sliding frictional engagement with the journal box on one side and the pedestal legs on the other side.
Claim 3
Dependent Claim
22 words
A pedestal liner according to claim 1 wherein the tough plastic is at least one of nylon, polyester, polyacetal, polyolefin and polymide.
Claim 4
Dependent Claim
29 words
A pedestal liner according to claim 1 wherein the pedestal liners are supported on, and the lower extent of their vertical movement is restricted by, the pedestal tie bar.
Claim 5
Dependent Claim
28 words
A pedestal liner according to claim 3 wherein a land is provided on the bottom portion of the pedestal liner to rest on the pedestal leg tie bar.
References Cited (Backward Citations)
US1866264A
Cited
US1903859A
Cited
US2474008A
Cited
US3378317A
Cited
US3554618A
Cited
US4001124A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1981-06-12 | 1981-12-12 | 1982-06-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-06-12 | 1985-12-12 | 1986-06-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-06-12 | 1989-12-12 | 1990-06-13 | $7700.00 | Window Closed / Lapsed |