US3320975A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Serially arranged valves
Assignee: Ransburg Corp
•
Filing: 1966-06-10
•
Granted: 1967-05-23
•
Expires: 1986-06-10
Abstract
No abstract record available.
Inventors
- 👤 James W Juvinall
- 👤 Chester A Purdy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 21:57
CPC Classifications
B; B05; B05B; B05B5/00; B05B5/16; B05B5/08; Y; Y10; Y10T; Y10T137/00; Y10T137/8593; Y10T137/87917
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
106 words
APPARATUS FOR CONTROLLING FLOW OF A LIQUID, COMPRISING A HOUSING HAVING A BORE, A PLATE-LIKE VALVE MEMBER EXTENDING ACROSS SAID BORE, A SECOND VALVE MEMBER SLIDABLE IN SAID BORE, SAID SECOND VALE MEMBER BEING HOLLOW AND HAVING A THIN END WALL ENGAGING SAID PLATELIKE VALVE MEMBER, SAID END WALL AND PLATE-LIKE VALVE MEMBER BEING PROVIDED WITH VALVING OPENINGS, MEANS URGING SAID SECOND VALVE MEMBER LONGITUDINALLY OF SAID BORE TOWARD THE PLATE-LIKE VALVE MEMBER, AND MEANS FOR MOVING SAID PLATE-LIKE VALVE MEMBER TRANSVERSELY OF SAID BORE TO VARY THE REGISTRY OF SAID OPENINGS, SAID HOUSING HAVING A PASSAGE COMMUNICATING WITH THE INTERIOR OF THE SECOND VALVE MEMBER.
Claim 2
Dependent Claim
106 words
APPARATUS FOR CONTROLLING FLOW OF A LIQUID, COMPRISING A HOUSING HAVING A BORE, A PLATE-LIKE VALVE MEMBER EXTENDING ACROSS SAID BORE, A SECOND VALVE MEMBER SLIDABLE IN SAID BORE, SAID SECOND VALE MEMBER BEING HOLLOW AND HAVING A THIN END WALL ENGAGING SAID PLATELIKE VALVE MEMBER, SAID END WALL AND PLATE-LIKE VALVE MEMBER BEING PROVIDED WITH VALVING OPENINGS, MEANS URGING SAID SECOND VALVE MEMBER LONGITUDINALLY OF SAID BORE TOWARD THE PLATE-LIKE VALVE MEMBER, AND MEANS FOR MOVING SAID PLATE-LIKE VALVE MEMBER TRANSVERSELY OF SAID BORE TO VARY THE REGISTRY OF SAID OPENINGS, SAID HOUSING HAVING A PASSAGE COMMUNICATING WITH THE INTERIOR OF THE SECOND VALVE MEMBER.
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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) | 1970-05-22 | 1970-11-21 | 1971-05-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-05-22 | 1974-11-21 | 1975-05-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-05-22 | 1978-11-21 | 1979-05-23 | $7700.00 | Window Closed / Lapsed |