Patent US3230832A successfully refreshed from Google Patents.
US3230832A
Expired / Lapsed
US
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Apparatus and process for machining rails
Assignee: Chemetron Corp
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Filing: 1963-09-12
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Granted: 1966-01-25
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Expires: 1983-09-12
Abstract
No abstract record available.
Inventors
- 👤 Earle F Cox
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 11:16
CPC Classifications
E; E01; E01B; E01B31/00; E01B31/02; E01B31/12; Y; Y10; Y10T; Y10T409/00; Y10T409/30; Y10T409/303752; Y10T409/303808; Y10T409/3042; Y10T409/304256; Y10T409/306664; Y10T409/307448; Y10T409/307784
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
96 words
THE METHOD OF REMOVING FLASH FROM A HOT, WELDED RAIL JOINT, COMPRISING THE STEPS OF: EXERTING MOMENTPRODUCING FORCES ON A RAIL ON EACH SIDE OF A HOT, WELDED RAIL JOINT TO FLEX A RAIL TO A PRE-SELECTED DEGREE OF CONVEXITY, AND REMOVING FLASH FROM AT LEAST THE TOP FACE OF THE RAIL ALONG A SUBSTANTIALLY STRAIGHT PATH TO REMOVE A VARYING THICKNESS OF THE TOP RAIL FACE HAVING A MAXIMUM DEPTH AT THE RAIL JOINTS, AND THEREAFTER RELEASING THE MOVEMENT-PRODUCING FORCES ON THE RAIL TO ALLOW THE RAIL TO STRAIGHTEN DURING COOLING OF THE RADIAL JOINT.
Claim 2
Independent Claim
96 words
THE METHOD OF REMOVING FLASH FROM A HOT, WELDED RAIL JOINT, COMPRISING THE STEPS OF: EXERTING MOMENTPRODUCING FORCES ON A RAIL ON EACH SIDE OF A HOT, WELDED RAIL JOINT TO FLEX A RAIL TO A PRE-SELECTED DEGREE OF CONVEXITY, AND REMOVING FLASH FROM AT LEAST THE TOP FACE OF THE RAIL ALONG A SUBSTANTIALLY STRAIGHT PATH TO REMOVE A VARYING THICKNESS OF THE TOP RAIL FACE HAVING A MAXIMUM DEPTH AT THE RAIL JOINTS, AND THEREAFTER RELEASING THE MOVEMENT-PRODUCING FORCES ON THE RAIL TO ALLOW THE RAIL TO STRAIGHTEN DURING COOLING OF THE RADIAL JOINT.
References Cited (Backward Citations)
US1446095A
Cited
US2272737A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-01-24 | 1969-07-26 | 1970-01-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-01-24 | 1973-07-26 | 1974-01-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-01-24 | 1977-07-26 | 1978-01-25 | $7700.00 | Window Closed / Lapsed |