US3112758A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ball valve
Assignee: Weatherhead Co
•
Filing: 1961-01-06
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Granted: 1963-12-03
•
Expires: 1981-01-06
Abstract
No abstract record available.
Inventors
- 👤 Norton James Frederick
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 00:36
CPC Classifications
F; F16; F16K; F16K5/00; F16K5/06; F16K5/0626; F16K5/0642; F16K27/00; F16K27/06; F16K27/067; F16K5/0647; Y; Y10; Y10T; Y10T137/00; Y10T137/598; Y10T137/6031; Y10T137/6035; Y10T137/6038
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
198 words
A VALVE COMPRISING A HOUSING HAVING A CHAMBER THEREIN AND INLET AND OUTLET PASSAGES LEADING TO AND FROM SAID CHAMBER, A ROTATABLE STEM EXTENDING FROM OUTSIDE SAID HOUSING INTO SAID CHAMBER, SAID HOUSING HAVING A TRANSVERSE OPENING LEADING INTO SAID CHAMBER AND RECEIVING SAID STEM, SAID STEM HAVING AN INNER END PORTION WHICH IS SHAPED AND DIMENSIONED TO BE INSERTED FROM OUTSIDE SAID HOUSING THROUGH SAID OPENING INTO SAID CHAMBER, AND A ROTATABLE VALVE MEMBER IN SAID CHAMBER COUPLED TO SAID INNER END PORTION OF THE STEM TO BE TURNED THEREBY, SAID VALVE MEMBER BEING SHAPED AND DIMENSIONED TO BE INSERTED ENDWISE INTO SAID CHAMBER AND HAVING A SLOT IN ITS PERIPHERY WHICH IS OPEN AT ONE END TO RECEIVE SAID INNER END PORTION OF THE STEM WHEN THE VALVE MEMBER IS INSERTED ENDWISE INTO SAID CHAMBER, SAID SLOT BEING CLOSED AT THE OTHER END TO FORM AN ABUTMENT ADAPTED TO LIMIT RELATIVE MOVEMENT OF SAID STEM AND SAID VALVE MEMBER IN ONE DIRECTION LENGTHWISE OF SAID SLOT, SAID VALVE MEMBER AND SAID INNER END PORTION OF THE STEM HAVING MEANS FOR INTERLOCKING ENGAGEMENT WITH EACH OTHER TO RETAIN SAID STEM AGAINST OUTWARD MOVEMENT THROUGH SAID TRANSVERSE OPENING.
Claim 2
Dependent Claim
198 words
A VALVE COMPRISING A HOUSING HAVING A CHAMBER THEREIN AND INLET AND OUTLET PASSAGES LEADING TO AND FROM SAID CHAMBER, A ROTATABLE STEM EXTENDING FROM OUTSIDE SAID HOUSING INTO SAID CHAMBER, SAID HOUSING HAVING A TRANSVERSE OPENING LEADING INTO SAID CHAMBER AND RECEIVING SAID STEM, SAID STEM HAVING AN INNER END PORTION WHICH IS SHAPED AND DIMENSIONED TO BE INSERTED FROM OUTSIDE SAID HOUSING THROUGH SAID OPENING INTO SAID CHAMBER, AND A ROTATABLE VALVE MEMBER IN SAID CHAMBER COUPLED TO SAID INNER END PORTION OF THE STEM TO BE TURNED THEREBY, SAID VALVE MEMBER BEING SHAPED AND DIMENSIONED TO BE INSERTED ENDWISE INTO SAID CHAMBER AND HAVING A SLOT IN ITS PERIPHERY WHICH IS OPEN AT ONE END TO RECEIVE SAID INNER END PORTION OF THE STEM WHEN THE VALVE MEMBER IS INSERTED ENDWISE INTO SAID CHAMBER, SAID SLOT BEING CLOSED AT THE OTHER END TO FORM AN ABUTMENT ADAPTED TO LIMIT RELATIVE MOVEMENT OF SAID STEM AND SAID VALVE MEMBER IN ONE DIRECTION LENGTHWISE OF SAID SLOT, SAID VALVE MEMBER AND SAID INNER END PORTION OF THE STEM HAVING MEANS FOR INTERLOCKING ENGAGEMENT WITH EACH OTHER TO RETAIN SAID STEM AGAINST OUTWARD MOVEMENT THROUGH SAID TRANSVERSE OPENING.
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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) | 1966-12-02 | 1967-06-03 | 1967-12-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-12-02 | 1971-06-03 | 1971-12-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-12-02 | 1975-06-03 | 1975-12-03 | $7700.00 | Window Closed / Lapsed |