US3117323A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ball valve lifting apparatus
Assignee: Individual
•
Filing: 1962-01-22
•
Granted: 1964-01-14
•
Expires: 1982-01-22
Abstract
No abstract record available.
Inventors
- 👤 Harry B Corsaw
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 22:46
CPC Classifications
E; E03; E03C; E03C1/00; E03C1/12; E03C1/22; E03C1/23; E03C1/2302; E03D; E03D1/00; E03D1/30; E03D1/34
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
144 words
A BALL VALVE LIFTING APPARATUS ADAPTED FOR USE IN FLUSH TANKS EMPLOYING A VERTICALLY TRANSLATED FLUSH LEVER AND A BUOYANT BALL VALVE INCLUDING, A VALVE STEM AXIALLY MOUNTED ON THE BALL VALVE AND ADAPTED TO EXTEND UPWARDLY FROM THE BALL VALVE, A PLIABLE CORD LOOP ATTACHED TO SAID FLUSH LEVER FOR APPROXIMATE VERTICAL TRANDLATION IN CONCERT WITH SAID FLUSH LEVER, SAID PLIABLE CORD LOOP FORMING A LIFTING EYE ADAPTED TO RECEIVE SAID VALVE STEM FREELY SLIDEABLE THERETHROUGH WHEREBY RELATIVELY WIDE TOLERANCES IN VERTICAL ALIGNMENT BETWEEN SAID VALVE STEM AND THE POINT OF ATTACHMENT OF SAID CORD TO SAID FLUSH LEVER ARE FACILITATED, AND A MEMBER HAVING A COLLAR PORTION AFFIXED TO SAID VALVE STEM UPWARDLY OF SAID PLIABLE CORD FOR CATCHING SAID PLIABLE CORD LOOP UPON UPWARD TRANSLATION OF SAID LOOP WITH SAID FLUSH LEVER FOR LIFTING SAID VALVE STEM AND SAID BALL VALVE.
Claim 2
Dependent Claim
144 words
A BALL VALVE LIFTING APPARATUS ADAPTED FOR USE IN FLUSH TANKS EMPLOYING A VERTICALLY TRANSLATED FLUSH LEVER AND A BUOYANT BALL VALVE INCLUDING, A VALVE STEM AXIALLY MOUNTED ON THE BALL VALVE AND ADAPTED TO EXTEND UPWARDLY FROM THE BALL VALVE, A PLIABLE CORD LOOP ATTACHED TO SAID FLUSH LEVER FOR APPROXIMATE VERTICAL TRANDLATION IN CONCERT WITH SAID FLUSH LEVER, SAID PLIABLE CORD LOOP FORMING A LIFTING EYE ADAPTED TO RECEIVE SAID VALVE STEM FREELY SLIDEABLE THERETHROUGH WHEREBY RELATIVELY WIDE TOLERANCES IN VERTICAL ALIGNMENT BETWEEN SAID VALVE STEM AND THE POINT OF ATTACHMENT OF SAID CORD TO SAID FLUSH LEVER ARE FACILITATED, AND A MEMBER HAVING A COLLAR PORTION AFFIXED TO SAID VALVE STEM UPWARDLY OF SAID PLIABLE CORD FOR CATCHING SAID PLIABLE CORD LOOP UPON UPWARD TRANSLATION OF SAID LOOP WITH SAID FLUSH LEVER FOR LIFTING SAID VALVE STEM AND SAID BALL VALVE.
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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) | 1967-01-13 | 1967-07-15 | 1968-01-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-01-13 | 1971-07-15 | 1972-01-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-01-13 | 1975-07-15 | 1976-01-14 | $7700.00 | Window Closed / Lapsed |