Patent US3347259A successfully refreshed from Google Patents.
US3347259A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Valve assembly
Assignee: Parker Hannifin Corp
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Filing: 1966-11-10
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Granted: 1967-10-17
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Expires: 1986-11-10
Abstract
No abstract record available.
Inventors
- 👤 Zdenek J Lansky
- 👤 Kurt W Leibfritz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 09:17
CPC Classifications
F; F15; F15B; F15B13/00; F15B13/02; F15B13/04; F15B13/042; F15B13/043; F15B13/0431; F16; F16K; F16K31/00; F16K31/12; F16K31/42; F16K31/423; Y; Y10; Y10T; Y10T137/00; Y10T137/5109; Y10T137/8593; Y10T137/86493; Y10T137/86574; Y10T137/86582; Y10T137/86614
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
229 words
A HOUSING ASSEMBLY FOR A VALVE, SAID ASSEMBLY INCLUDING A HOUSING HAVING INLET AND OUTLET CHAMBERS WITHIN A MOTOR CHAMBER EXTENDING THEREBETWEEN, AN INLET PORT BETWEEN THE INLET AND MOTOR CHAMBERS AND AN OUTLET PORT INLET CHAMBER SIDE OF THE INLET PORT AND A SECOND SEAT ON THE OUTLET CHAMBER SIDE OF THE OUTLET PORT, A THIRD SEAT ON THE OUTLET CHAMBER SIDE OF THE OUTLET PORT, A THIRD SEAT ON THE MOTOR CHAMBER SIDE OF THE INLET PORT AND A FOURTH SEAT ON THE MOTOR CHAMBER SIDE OF THE OUTLET PORT, SAID FIRST AND SECOND SEATS BEING COOPERABLE WITH A FIRST POPPET VALVE ELEMENT REPLACEABLY AND MOVABLY MOUNTABLE IN SAID HOUSING FOR RESPECTIVELY CLOSING AND OPENING SAID INLET AND OUTLET PORTS WHEN THE ELEMENT IS IN A RETRACTED POSITION AND RESPECTIVELY OPENING AND CLOSING SAID INLET AND OUTLET PORTS WHEN THE ELEMENT IS IN AN EXTENDED POSITION, SAID THIRD AND FOURTH SEATS BEING COOPERABLE WITH A SECOND POPPET VALVE ELEMENT MOVABLY MOUNTED IN THE HOUSING AS A REPLACEMENT FOR THE FIRST POPPET VALVE ELEMENT FOR RESPECTIVELY OPENING AND CLOSING SAID INLET AND OUTLET PORTS WHEN THE SECOND ELEMENT IS IN A RETRACTED POSITION AND RESPECTIVELY CLOSING AND OPENING SAID INLET AND OUTLET PORTS WHEN THE SECOND ELEMENT IS IN AN EXTENDED POSITION, AND SAID HOUSING ASSEMBLY INCLUDING MEANS FOR MOVING EITHER ELEMENT BETWEEN ITS RETRACTED AND EXTENDED POSITIONS.
Claim 2
Dependent Claim
150 words
A VALVE ASSEMBLY COMPRISING A HOUSING HAVING INLET, OUTLET AND MOTOR CHAMBERS, AN INLET PORT, BETWEEN THE INLET AND MOTOR CHAMBERS, A SECOND PORT BETWEEN THE MOTOR AND OUTLET CHAMBERS, A VALVE ELEMENT MOVABLE IN THE HOUSING BETWEEN FIRST AND SECOND POSITIONS, SAID ELEMENT HAVING MEANS THEREON FOR ALTERNATELY OPENING AND CLOSING SAID PORTS WHEN MOVED TO SAID POSITIONS, A CYLINDRICAL PISTON CHAMBER IN ONE END OF THE HOUSING BEYOND SAID CHAMBERS, A BORED BUSHING IN THE OTHER END OF THE HOUSING BEYOND SAID CHAMBERS, SAID VALVE ELEMENT HAVING A PISTON AT ONE END THEREOF SLIDABLY FITTED IN SAID PISTON CHAMBER, AND A STEM AT ITS OTHER END SLIDABLY FITTED WITHIN SAID BUSHING BORE, SAID BUSHING HAVING A PART SPHERICAL EXTENERAL SURFACE BEARING AGAINST A MATING PART SPHERICAL INTERNAL SURFACE OF SAID HOUSING WHEREBY SAID BUSHING MAY PIVOT ABOUT ITS CENTER OF SPHERICITY FOR ALIGNING SAID BORE WITH SAID STEM.
References Cited (Backward Citations)
US3176954A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-10-16 | 1971-04-17 | 1971-10-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-10-16 | 1975-04-17 | 1975-10-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-10-16 | 1979-04-17 | 1979-10-17 | $7700.00 | Window Closed / Lapsed |