Patent US3256909A successfully refreshed from Google Patents.
US3256909A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydrodynamic multiport valve
Assignee: Pall Corp
•
Filing: 1963-06-17
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Granted: 1966-06-21
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Expires: 1983-06-17
Abstract
No abstract record available.
Inventors
- 👤 Obidniak Louis
- 👤 Sheinberg Sydney
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 18:19
CPC Classifications
F; F16; F16K; F16K11/00; F16K11/02; F16K11/06; F16K11/072; Y; Y10; Y10T; Y10T137/00; Y10T137/8593; Y10T137/86389; Y10T137/86445; Y10T137/86493; Y10T137/86718; Y10T137/86743; Y10T137/86863
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
199 words
A MULTIPORT LIFT TURN VALVE COMPRISING A BODY HAVING A PORTED FACE, AND FLOW PASSAGES COMMUNICATING WITH THE PORTS IN SAID FACE; MEANS DEFINING A FLUID SUPPLY CHAMBER AT ONE SIDE OF SAID PORTED FACE; A ROTARY PORT PLATE IN SAID SUPPLY CHAMBER, MOUNTED TO BE SEATED IN CONFRONTING RELATION WITH SAID PORTED FACE AND TO BE UNSEATED AWAY FROM SAID PORTED FACE, TURNED AND RESEATED AT DIFFERENT ROTATIVE SETTINGS IN CONFRONTING RELATION WITH SAID PORTED FACE, SAID PLATE HAVING PORTS THEREIN ARRANGED TO REGISTER WITH DIFFERENT PORTS IN SAID PORTED FACE TO PASS FLUID FROM SAID SUPPLY CHAMBER THROUGH THE PORTED FACE IN DIFFERENT ROTATIVE SETTINGS OF THE PLATE; MOVABLE PRESSURE RESPONSIVE MEANS EXPOSED ON ONE SIDE TO THE FLUID PRESSURE FROM THE SUPPLY CHAMBER AND OPERATIVELY CONNECTED TO THE PLATE FOR UNSEATING AND RESEATING THE PLATE; A PLURALITY OF TURBINE MEANS, OPERATIVELY CONNECTED TO THE SURFACE OF SAID PLATE FOR TURNING THE LATTER BETWEEN SUCCESSIVE POSITIONS OF THE PLATE UPON MOVEMENT OF THE PLATE FROM ITS SEATED TO AN UNSEATED POSITION; A FLUID INLET FOR PASSING FLUID INTO THE SUPPLY CHAMBER AND AGAINST THE TURBINE MEANS TO EFFECT ROTATION OF SAID PLATE; A TRACK PROVIDING A GUIDE
Claim 2
Dependent Claim
199 words
A MULTIPORT LIFT TURN VALVE COMPRISING A BODY HAVING A PORTED FACE, AND FLOW PASSAGES COMMUNICATING WITH THE PORTS IN SAID FACE; MEANS DEFINING A FLUID SUPPLY CHAMBER AT ONE SIDE OF SAID PORTED FACE; A ROTARY PORT PLATE IN SAID SUPPLY CHAMBER, MOUNTED TO BE SEATED IN CONFRONTING RELATION WITH SAID PORTED FACE AND TO BE UNSEATED AWAY FROM SAID PORTED FACE, TURNED AND RESEATED AT DIFFERENT ROTATIVE SETTINGS IN CONFRONTING RELATION WITH SAID PORTED FACE, SAID PLATE HAVING PORTS THEREIN ARRANGED TO REGISTER WITH DIFFERENT PORTS IN SAID PORTED FACE TO PASS FLUID FROM SAID SUPPLY CHAMBER THROUGH THE PORTED FACE IN DIFFERENT ROTATIVE SETTINGS OF THE PLATE; MOVABLE PRESSURE RESPONSIVE MEANS EXPOSED ON ONE SIDE TO THE FLUID PRESSURE FROM THE SUPPLY CHAMBER AND OPERATIVELY CONNECTED TO THE PLATE FOR UNSEATING AND RESEATING THE PLATE; A PLURALITY OF TURBINE MEANS, OPERATIVELY CONNECTED TO THE SURFACE OF SAID PLATE FOR TURNING THE LATTER BETWEEN SUCCESSIVE POSITIONS OF THE PLATE UPON MOVEMENT OF THE PLATE FROM ITS SEATED TO AN UNSEATED POSITION; A FLUID INLET FOR PASSING FLUID INTO THE SUPPLY CHAMBER AND AGAINST THE TURBINE MEANS TO EFFECT ROTATION OF SAID PLATE; A TRACK PROVIDING A GUIDE
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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) | 1969-06-20 | 1969-12-20 | 1970-06-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-06-20 | 1973-12-20 | 1974-06-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-06-20 | 1977-12-20 | 1978-06-21 | $7700.00 | Window Closed / Lapsed |