Patent US3227053A successfully refreshed from Google Patents.
US3227053A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Conversion brake cylinder
Assignee: Westinghouse Air Brake Co
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Filing: 1964-02-26
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Granted: 1966-01-04
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Expires: 1984-02-26
Abstract
No abstract record available.
Inventors
- 👤 Willard P Spalding
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 12:28
CPC Classifications
B; B60; B60T; B60T17/00; B60T17/08; B60T17/081
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
160 words
A CONVERSION ELEMENT FOR USE WITH AN EXISTING BRAKE CYLINDER DEVICE OF THE TYPE COMPRISING A CYLINDRICAL BODY PORTION HAVING SECURED COAXIALLY THERETO, AT ITS RESPECTIVE ENDS, A PRESSURE HEAD AND A NON-PRESSURE HEAD, SAID CYLINDRICAL BODY PORTION NORMALLY HAVING COAXIALLY OPERABLE THEREIN A PISTON OF A DIAMETER CORRESPONDING TO THE INTERNAL DIAMETER OF THE CYLINDRICAL BODY PORTION, SAID CONVERSION ELEMENT COMPRISING: (A) A SLEEVE CORRESPONDING IN LENGTH SUBSTANTIALLY TO THE LENGTH OF THE CYLINDRICAL BODY PORTION OF THE BRAKE CYLINDER DEVICE FOR COAXIAL DISPOSITION THEREIN AND ADAPTED TO RECEIVE THEREIN A PISTON OF CORRESPONDING DIAMETER, (B) AN OUT-TURNED PERFORATED FLANGE LOCATED AT THE END OF SAID SLEEVE ADJACENT THE PRESSURE HEAD AND CORRESPONDING IN DIAMETER SUBSTANTIALLY TO THE INTERNAL DIAMETER OF THE CYLINDRICAL BODY PORTION, (C) AN OUT-TURNED SECURED FLANGE LOCATED AT THE OPPOSITE END OF SAID SLEEVE AND ARRANGED TO BE SECURED TO A CORRESPONDING FLANGE FORMED AT THE NON-PRESSURE HEAD END OF THE CYLINDRICAL BODY PORTION, AND
Claim 2
Dependent Claim
160 words
A CONVERSION ELEMENT FOR USE WITH AN EXISTING BRAKE CYLINDER DEVICE OF THE TYPE COMPRISING A CYLINDRICAL BODY PORTION HAVING SECURED COAXIALLY THERETO, AT ITS RESPECTIVE ENDS, A PRESSURE HEAD AND A NON-PRESSURE HEAD, SAID CYLINDRICAL BODY PORTION NORMALLY HAVING COAXIALLY OPERABLE THEREIN A PISTON OF A DIAMETER CORRESPONDING TO THE INTERNAL DIAMETER OF THE CYLINDRICAL BODY PORTION, SAID CONVERSION ELEMENT COMPRISING: (A) A SLEEVE CORRESPONDING IN LENGTH SUBSTANTIALLY TO THE LENGTH OF THE CYLINDRICAL BODY PORTION OF THE BRAKE CYLINDER DEVICE FOR COAXIAL DISPOSITION THEREIN AND ADAPTED TO RECEIVE THEREIN A PISTON OF CORRESPONDING DIAMETER, (B) AN OUT-TURNED PERFORATED FLANGE LOCATED AT THE END OF SAID SLEEVE ADJACENT THE PRESSURE HEAD AND CORRESPONDING IN DIAMETER SUBSTANTIALLY TO THE INTERNAL DIAMETER OF THE CYLINDRICAL BODY PORTION, (C) AN OUT-TURNED SECURED FLANGE LOCATED AT THE OPPOSITE END OF SAID SLEEVE AND ARRANGED TO BE SECURED TO A CORRESPONDING FLANGE FORMED AT THE NON-PRESSURE HEAD END OF THE CYLINDRICAL BODY PORTION, AND
References Cited (Backward Citations)
US2880043A
Cited
US3152516A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-01-03 | 1969-07-05 | 1970-01-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-01-03 | 1973-07-05 | 1974-01-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-01-03 | 1977-07-05 | 1978-01-04 | $7700.00 | Window Closed / Lapsed |