Patent US3077895A successfully refreshed from Google Patents.
US3077895A
Expired / Lapsed
US
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Ball valve
Assignee: Fisher Governor Co
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Filing: 1961-05-12
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Granted: 1963-02-19
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Expires: 1981-05-12
Abstract
No abstract record available.
Inventors
- 👤 Vickery Edgar Herbert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 19:23
CPC Classifications
F; F16; F16K; F16K5/00; F16K5/06; F16K5/0626; F16K5/0642; F16K5/08; F16K5/14; F16K5/20; F16K5/201; F16K5/205; F16K5/208; Y; Y10; Y10T; Y10T137/00; Y10T137/598; Y10T137/6031; Y10T137/6035; Y10T137/6038
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
158 words
A BALL VALVE COMPRISING A VALVE HOUSING, A WALL DEFINING A VALVE CHAMBER IN SAID HOUSING, A VALVE BALL IN SAID CHAMBER HAVING A FLOW PASSAGE THERETHROUGH, MEANS FORMING A STEM OPENING IN SAID VALVE HOUSING, MEANS FORMING A RECESS IN SAID CHAMBER WALL IN AXIAL ALIGNMENT WITH SAID STEM OPENING, SAID RECESS BEING INTERNALLY THREADED, MEANS FORMING A STEM OPENING IN SAID BALL REGISTERING WITH SAID HOUSING STEM OPENING, A VALVE STEM IN SAID HOUSING STEM OPENING AND EXTENDING INTO SAID BALL STEM OPENING, MEANS CONNECTING SAID STEM TO SAID BALL FOR MOVEMENT OF THE BALL ALONG THE STEM AXIS AND FOR ROTATION OF THE BALL AND STEM TOGETHER ABOUT THE STEM AXIS, MEANS FORMING A PLUG OPENING IN SAID BALL REGISTERING WITH SAID WALL RECESS, AND A JOURNAL PLUG HAVING AN EXTERNALLY THREADED END PORTION INSERTABLE THROUGH SAID BALL FLOW PASSAGE INTO SAID PLUG OPENING, AND ENGAGEABLE WITH SAID HOUSING IN SAID INTERNALLY THREADED WALL RECESS.
Claim 2
Dependent Claim
158 words
A BALL VALVE COMPRISING A VALVE HOUSING, A WALL DEFINING A VALVE CHAMBER IN SAID HOUSING, A VALVE BALL IN SAID CHAMBER HAVING A FLOW PASSAGE THERETHROUGH, MEANS FORMING A STEM OPENING IN SAID VALVE HOUSING, MEANS FORMING A RECESS IN SAID CHAMBER WALL IN AXIAL ALIGNMENT WITH SAID STEM OPENING, SAID RECESS BEING INTERNALLY THREADED, MEANS FORMING A STEM OPENING IN SAID BALL REGISTERING WITH SAID HOUSING STEM OPENING, A VALVE STEM IN SAID HOUSING STEM OPENING AND EXTENDING INTO SAID BALL STEM OPENING, MEANS CONNECTING SAID STEM TO SAID BALL FOR MOVEMENT OF THE BALL ALONG THE STEM AXIS AND FOR ROTATION OF THE BALL AND STEM TOGETHER ABOUT THE STEM AXIS, MEANS FORMING A PLUG OPENING IN SAID BALL REGISTERING WITH SAID WALL RECESS, AND A JOURNAL PLUG HAVING AN EXTERNALLY THREADED END PORTION INSERTABLE THROUGH SAID BALL FLOW PASSAGE INTO SAID PLUG OPENING, AND ENGAGEABLE WITH SAID HOUSING IN SAID INTERNALLY THREADED WALL RECESS.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-02-18 | 1966-08-20 | 1967-02-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-02-18 | 1970-08-20 | 1971-02-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-02-18 | 1974-08-20 | 1975-02-19 | $7700.00 | Window Closed / Lapsed |