US4245719A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Railroad lubricators
Assignee: ABC Naco Inc
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Filing: 1978-12-26
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Granted: 1981-01-20
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Expires: 1998-12-26
Abstract
Abstract A lubricator (which may be of rail form, tilted on its side) for applying lubricant to a railroad wheel characterized by deep, elongated slots so arranged that lubricant is spread on the wheel in spaced segments during one half the wheel turn and also during the next half turn; the lubricant first applied to the wheel is re-transferred during the second full turn.
Inventors
- 👤 Earl E. Frank
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 04:25
CPC Classifications
B; B61; B61K; B61K3/00
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
156 words
Railroad lubricator apparatus for applying lubricant to a railroad wheel, applied from one face of an auxiliary rail, said rail having a first series of longitudinally spaced lubricant delivery slots formed in said face thereof to apply lubricant as a corresponding series of spaced segments as the wheel moves past said rail, said rail having a second series of longitudinally spaced lubricant delivery slots formed in said face thereof and so spaced downstream of the first that as the lubricated wheel rotates therepast the wheel transfers lubricant to the spaces between the second-series slots while the wheel itself receives lubricant from the second series of slots, said rail having a series of branch passages for delivering lubricant to alternate ones of the delivery slots, a manifold for supplying grease to the branch passages, and each manifold having a divider fin to divide the supply of lubricant into substantially equal parts for delivery to the branch passages.
Claim 2
Dependent Claim
156 words
Railroad lubricator apparatus for applying lubricant to a railroad wheel, applied from one face of an auxiliary rail, said rail having a first series of longitudinally spaced lubricant delivery slots formed in said face thereof to apply lubricant as a corresponding series of spaced segments as the wheel moves past said rail, said rail having a second series of longitudinally spaced lubricant delivery slots formed in said face thereof and so spaced downstream of the first that as the lubricated wheel rotates therepast the wheel transfers lubricant to the spaces between the second-series slots while the wheel itself receives lubricant from the second series of slots, said rail having a series of branch passages for delivering lubricant to alternate ones of the delivery slots, a manifold for supplying grease to the branch passages, and each manifold having a divider fin to divide the supply of lubricant into substantially equal parts for delivery to the branch passages.
Claim 3
Dependent Claim
41 words
Apparatus according to claim 1 wherein said rail has a standard rail head in which said slots are formed in a restricted portion, the remaining portion of said rail head being removed to prevent the wheel from forming a rut therein.
Claim 4
Dependent Claim
35 words
Apparatus according to claim 1 wherein the shape of each slot is cigar shaped in plan and saucer shaped in depth such that the area of the slot remains substantially invariant in spite of wear.
Claim 5
Dependent Claim
41 words
Apparatus according to claim 3 wherein said rail has a standard rail head in which said slots are formed in a restricted portion, the remaining portion of said rail head being removed to prevent the wheel from forming a rut therein.
Claim 6
Dependent Claim
151 words
In a railroad system where the traffic rails are traversed by a car equipped with wheels of a given diameter, lubricator apparatus positioned at one side of a traffic rail for applying lubricant to the flange of a railroad wheel, applied from one face of an auxiliary rail facing the traffic rail, said auxiliary rail having a series of elongated longitudinally spaced lubricant delivery slots formed in said face thereof to spread lubricant on the wheel as a corresponding series of spaced segments completely around the wheel as it turns 360° past said auxiliary rail, said slots being so spaced from one another and of such number and dimension related to the wheel diameter that: the wheel traverses many slots for each of two successive 180° turns of the wheel and thereafter simultaneously transfers lubricant to spaces between the slots while itself receiving lubricant from slots while subsequently turning through 360°-540°.
Claim 7
Dependent Claim
151 words
In a railroad system where the traffic rails are traversed by a car equipped with wheels of a given diameter, lubricator apparatus positioned at one side of a traffic rail for applying lubricant to the flange of a railroad wheel, applied from one face of an auxiliary rail facing the traffic rail, said auxiliary rail having a series of elongated longitudinally spaced lubricant delivery slots formed in said face thereof to spread lubricant on the wheel as a corresponding series of spaced segments completely around the wheel as it turns 360° past said auxiliary rail, said slots being so spaced from one another and of such number and dimension related to the wheel diameter that: the wheel traverses many slots for each of two successive 180° turns of the wheel and thereafter simultaneously transfers lubricant to spaces between the slots while itself receiving lubricant from slots while subsequently turning through 360°-540°.
References Cited (Backward Citations)
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Cited
US1918406A
Cited
US1979307A
Cited
US2059235A
Cited
US2016974A
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Cited
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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) | 1984-01-20 | 1984-07-21 | 1985-01-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-01-20 | 1988-07-21 | 1989-01-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-01-20 | 1992-07-21 | 1993-01-20 | $7700.00 | Window Closed / Lapsed |