Patent US3372901A successfully refreshed from Google Patents.
US3372901A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Valves
Assignee: Rockwell Manufacturing Co
•
Filing: 1964-04-13
•
Granted: 1968-03-12
•
Expires: 1984-04-13
Abstract
No abstract record available.
Inventors
- 👤 Paul A Manor
- 👤 Kania Gustav
- 👤 William A Generke
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 22:05
CPC Classifications
F; F16; F16K; F16K5/00; F16K5/06; F16K5/0663; F16K5/0668
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
170 words
A VALVE COMPRISING A METAL BODY HAVING FLOW PASSAGES INTERSECTING AN ENLARGED CENTRAL CHAMBER, A PORTED BALL VALVE MEMBER IN SAID CHAMBER MOUNTED FOR ROTATION BETWEEN OPEN SAID CLOSED POSITIONS, AND SEALING STRUCTURE FOR SAID VALVE COMPRISING A PAIR OF INTEGRALLY FORMED SOLID ELASTICALLY DEFORMABLE SEAT RINGS FIXEDLY MOUNTED WITH A SHRINK FIT IN GROOVES IN SAID VALVE BODY STRUCTURE, SAID RINGS EXTENDING AROUND SAID BODY ADJACENT THE INNER ENDS OF SAID FLOW PASSAGES OF EFFECTIVELY SURROUND SAID FLOW PASSAGES, SAID RINGS EACH HAVING AN ESSENTRIALLY CONICAL SEATING SURFACE ENGAGING THE BALL MEMBER AND JOINED AT ITS RADIALLY OUTER EDE TO AN ESSENTIALLY CYLINDRICAL SURFACE EXTENDING INTO A CORRESPONDING CYLINDRICAL SURFACE IN SAID GROOVE, AND INTERLOCKING MEANS AT THE INNER PERIPHERIES OF SAID RINGS TO HOLD SAID RINGS AGAINST ACCIDENTAL DISLODGEMENT FROM SAID GROOVES COMPRISING AN ANNULAR CURVED SURFACE OPEN RECESS EXTENDING AROUND THE INNER PERIPHERY OF EACH RING ADJACENT SAID SEATING SURFACE AND A CORRESPONDINGLY SHAPED ANNULAR CURVED SURFACE LIP ON THE ADJACENT GROOVE WALL PROJECTING INTO SAID RECESS.
Claim 2
Dependent Claim
170 words
A VALVE COMPRISING A METAL BODY HAVING FLOW PASSAGES INTERSECTING AN ENLARGED CENTRAL CHAMBER, A PORTED BALL VALVE MEMBER IN SAID CHAMBER MOUNTED FOR ROTATION BETWEEN OPEN SAID CLOSED POSITIONS, AND SEALING STRUCTURE FOR SAID VALVE COMPRISING A PAIR OF INTEGRALLY FORMED SOLID ELASTICALLY DEFORMABLE SEAT RINGS FIXEDLY MOUNTED WITH A SHRINK FIT IN GROOVES IN SAID VALVE BODY STRUCTURE, SAID RINGS EXTENDING AROUND SAID BODY ADJACENT THE INNER ENDS OF SAID FLOW PASSAGES OF EFFECTIVELY SURROUND SAID FLOW PASSAGES, SAID RINGS EACH HAVING AN ESSENTRIALLY CONICAL SEATING SURFACE ENGAGING THE BALL MEMBER AND JOINED AT ITS RADIALLY OUTER EDE TO AN ESSENTIALLY CYLINDRICAL SURFACE EXTENDING INTO A CORRESPONDING CYLINDRICAL SURFACE IN SAID GROOVE, AND INTERLOCKING MEANS AT THE INNER PERIPHERIES OF SAID RINGS TO HOLD SAID RINGS AGAINST ACCIDENTAL DISLODGEMENT FROM SAID GROOVES COMPRISING AN ANNULAR CURVED SURFACE OPEN RECESS EXTENDING AROUND THE INNER PERIPHERY OF EACH RING ADJACENT SAID SEATING SURFACE AND A CORRESPONDINGLY SHAPED ANNULAR CURVED SURFACE LIP ON THE ADJACENT GROOVE WALL PROJECTING INTO SAID 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) | 1971-03-12 | 1971-09-11 | 1972-03-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-03-12 | 1975-09-11 | 1976-03-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-03-12 | 1979-09-11 | 1980-03-12 | $7700.00 | Window Closed / Lapsed |