Patent US3315142A successfully refreshed from Google Patents.
Patent US2713013A successfully refreshed from Google Patents.
US2713013A
Expired / Lapsed
US
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Railroad tie pad and method of making same
Assignee: American Brake Shoe Co
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Filing: 1952-03-22
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Granted: 1955-07-12
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Expires: 1972-03-22
Abstract
No abstract record available.
Inventors
- 👤 Ray E Spokes
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 07:49
CPC Classifications
E; E01; E01B; E01B9/00; E01B9/68; E01B9/681; Y; Y10; Y10T; Y10T428/00; Y10T428/249921; Y10T428/249924; Y10T428/249933; Y10T428/249934; Y10T428/31504; Y10T428/31815; Y10T428/31826; Y10T428/31841
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
139 words
A RAILROAD TIE PAD ADAPTED TO BE PLACED BETWEEN A RAILROAD TIE AND THE TIE PLATE THEREFOR COMPRISING, AS THE ESSENTIAL COMPONENTS THEREOF, SHORT LENGTH FRICTIONED CORDS AND SMALL PIECES OF FRICTIONED FABRIC COATED WITH UNCURABLE RUBBER SUBJECTED TO A VULCANIZING CURE DURING FORMATION OF THE PAD BY HEAT AND PRESSURE TO BIND SAID CORDS AND FABRIC PIECES TOGETHER INTO A TOUGH AND DURABLE BODY CAPABLE OF WITHSTANDING SEVERE LOADING AND STRESSING DURING USE, AND SUFFICIENT ASPHALT UNIFORMLY DISPERSED THROUGHOUT THE BODY OF THE PAD DURING THE FORMATION THEREOF TO SEAL THE PAD AGAINST WEATHER, DECAY, AND INFLITRATION BY FOREIGN BODIES, SAID CORDS BEING ALIGNED GENERALLY PARALLEL TO THE EDGE OF THE PAD THAT WILL BE TRANSVERSE TO THE DIRECTION OF TRAVEL OF THE LOCOMOTIVE OVER THE PAD SO THAT THE PAD HAVE ITS GREATEST SRENGTH IN SAID DIRECTION.
Claim 2
Dependent Claim
139 words
A RAILROAD TIE PAD ADAPTED TO BE PLACED BETWEEN A RAILROAD TIE AND THE TIE PLATE THEREFOR COMPRISING, AS THE ESSENTIAL COMPONENTS THEREOF, SHORT LENGTH FRICTIONED CORDS AND SMALL PIECES OF FRICTIONED FABRIC COATED WITH UNCURABLE RUBBER SUBJECTED TO A VULCANIZING CURE DURING FORMATION OF THE PAD BY HEAT AND PRESSURE TO BIND SAID CORDS AND FABRIC PIECES TOGETHER INTO A TOUGH AND DURABLE BODY CAPABLE OF WITHSTANDING SEVERE LOADING AND STRESSING DURING USE, AND SUFFICIENT ASPHALT UNIFORMLY DISPERSED THROUGHOUT THE BODY OF THE PAD DURING THE FORMATION THEREOF TO SEAL THE PAD AGAINST WEATHER, DECAY, AND INFLITRATION BY FOREIGN BODIES, SAID CORDS BEING ALIGNED GENERALLY PARALLEL TO THE EDGE OF THE PAD THAT WILL BE TRANSVERSE TO THE DIRECTION OF TRAVEL OF THE LOCOMOTIVE OVER THE PAD SO THAT THE PAD HAVE ITS GREATEST SRENGTH IN SAID DIRECTION.
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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) | 1958-07-11 | 1959-01-10 | 1959-07-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-07-11 | 1963-01-10 | 1963-07-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-07-11 | 1967-01-10 | 1967-07-12 | $7700.00 | Window Closed / Lapsed |