Patent US4689718A successfully refreshed from Google Patents.
Patent US3199528A successfully refreshed from Google Patents.
US3199528A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ball valve
Assignee: Clayton Mark and Co
•
Filing: 1962-09-04
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Granted: 1965-08-10
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Expires: 1982-09-04
Abstract
No abstract record available.
Inventors
- 👤 Robert W Oetjens
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 08:27
CPC Classifications
F; F16; F16K; F16K27/00; F16K27/06; F16K27/067; Y; Y10; Y10T; Y10T137/00; Y10T137/598; Y10T137/6161; Y10T137/6164
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
108 words
A BALL VALVE COMPRISING A BODY HAVING A VALVE CHAMBER AND A PASSAGEWAY COMMUNICATING WITH SAID CHAMBER, AN UNTHREADED ROTATABLE AND LENGTHWISE MOVABLE ANNUALAR SPACER POSITIONED IN SAID PASSAGEWAY AND HAVING A RADIAL FACE ADAPTED TO ABUT AGAINST AN OPPOSED FACE IN THE VALVE BODY AND AN END FACE DISPOSED AXIALLY BEYOND THE BODY, AN ANNULAR V-SHAPED GROOVE ON THE OUTER SURFACE OF SAID SPACER DISPOSED INTERMEDIATE ITS ENDS, SECURING MEANS HAVING V-SHAPED ENDS ENGAGEABLE WITH ONE OF THE SURFACES OF THE V-SHAPED GROOVE WHEREBY THE SAID SECURING MEANS ARE ADJUSTABLE TOWARD THE SPACER TO HOLD THE LATTER WITH ITS RADIALLY DISPOSED FACE IN ENGAGEMENT WITH THE COR-
Claim 2
Dependent Claim
108 words
A BALL VALVE COMPRISING A BODY HAVING A VALVE CHAMBER AND A PASSAGEWAY COMMUNICATING WITH SAID CHAMBER, AN UNTHREADED ROTATABLE AND LENGTHWISE MOVABLE ANNUALAR SPACER POSITIONED IN SAID PASSAGEWAY AND HAVING A RADIAL FACE ADAPTED TO ABUT AGAINST AN OPPOSED FACE IN THE VALVE BODY AND AN END FACE DISPOSED AXIALLY BEYOND THE BODY, AN ANNULAR V-SHAPED GROOVE ON THE OUTER SURFACE OF SAID SPACER DISPOSED INTERMEDIATE ITS ENDS, SECURING MEANS HAVING V-SHAPED ENDS ENGAGEABLE WITH ONE OF THE SURFACES OF THE V-SHAPED GROOVE WHEREBY THE SAID SECURING MEANS ARE ADJUSTABLE TOWARD THE SPACER TO HOLD THE LATTER WITH ITS RADIALLY DISPOSED FACE IN ENGAGEMENT WITH THE COR-
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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) | 1968-08-09 | 1969-02-08 | 1969-08-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-08-09 | 1973-02-08 | 1973-08-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-08-09 | 1977-02-08 | 1977-08-10 | $7700.00 | Window Closed / Lapsed |