Patent US3567180A successfully refreshed from Google Patents.
US3567180A
Expired / Lapsed
US
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Fabricated valve and method of making the same
Assignee: Crane Co
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Filing: 1969-09-19
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Granted: 1971-03-02
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Expires: 1989-09-19
Abstract
Abstract THIS INVENTION RELATES TO A FABRICATED HOLLOW ANNULAR BODY FOR USE AS A VELVE BODY OR THE LIKE AND TO A METHOD OF PRODUCING THE SAME. THE VALVE BODY IS FORMED BY ONE OR MORE STAMPING OPERATIONS ON A PIECE F METAL TO FORM A HALF SECTIONS WHICH IS ANNULAR OR RING LIKE IN FORM. TWO SUCH HALF SECTIONS ARE PLACED IN BACK TO BACK RELATION AND WELDED TOGETHER TO FORM THE HOLLOW ANNULAR VALVE BODY. JOURNALLING MEMBERS ARE WELDED IN PLACE ON THE VALVE BODY END A VALVE SHAFT CARRYING A VALVE DISC IS MOUNTED BY THE JOURNALLING MEMBERS FOR ROTATION.
Inventors
- 👤 Hubert L Williams
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 21:50
CPC Classifications
F; F16; F16K; F16K1/00; F16K1/16; F16K1/18; F16K1/22; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49405; Y10T29/49412; Y10T29/49414
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-03-01 | 1974-08-31 | 1975-03-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-03-01 | 1978-08-31 | 1979-03-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-03-01 | 1982-08-31 | 1983-03-02 | $7700.00 | Window Closed / Lapsed |