US3347263A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Float valve assembly for a portable vacuum tank
Assignee: Thompson Tank and Manufacturing Co Inc
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Filing: 1965-06-28
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Granted: 1967-10-17
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Expires: 1985-06-28
Abstract
No abstract record available.
Inventors
- 👤 David L Thompson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 19:25
CPC Classifications
F; F16; F16K; F16K31/00; F16K31/12; F16K31/18; F16K31/20; Y; Y10; Y10T; Y10T137/00; Y10T137/7287; Y10T137/7358; Y10T137/7439; Y10T137/7485
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
164 words
A FLOAT VALVE ASSEMBLY FOR A PORTABLE VACUUM TANK, COMPRISING: AN UPSTANDING PIPE THAT IS MOUNTED IN SAID TANK, THE UPPER END OF SAID PIPE BEING FORMED WITH A VALVE SEAT; A SUPPORT EXTENDING FROM SAID PIPE, SAID SUPPORT HAVING A PAIR OF VERTICAL SIDE WALLS; A PAIR OF HORIZONTALLY ALIGNED CONE SET SCREWS CARRIED BY SAID SIDE WALLS; A PIVOT ASSEMBLY PIVOTALLY CARRIED TO SAID SET SCREWS THAT INCLUDES A SUPPORT BLOCK FORMED WITH A CONED POCKET THAT RECEIVES ONE OF SAID SET SCREWS AND WITH A HORIZONTAL BORE COAXIAL WITH SAID CONE POCKET, SAID BORE OPENING TOWARDS THE OTHER OF SAID SET SCREWS, SAID PIVOT ASSEMBLY ALSO INCLUDILNG A SLEEVE HORIZONTALLY SLIDABLY DISPOSED WITHIN SAID BORE, THE END OF SAID SLEEVE REMOTE FROM SAID FIRST-MENTIONED CONED POCKET BEING FORMED WITH A SECOND CONED POCKET THAT RECEIVES SAID OTHER SET SCREW, AND SAID PIVOT ASSEMBLY FURTHER INCLUDING A COMPRESSION SPRING INTERPOSED BETWEEN SAID SUPPORT BLOCK AND SAID SLEEVE TO CONSTANTLY URGE THEM APART;
Claim 2
Dependent Claim
164 words
A FLOAT VALVE ASSEMBLY FOR A PORTABLE VACUUM TANK, COMPRISING: AN UPSTANDING PIPE THAT IS MOUNTED IN SAID TANK, THE UPPER END OF SAID PIPE BEING FORMED WITH A VALVE SEAT; A SUPPORT EXTENDING FROM SAID PIPE, SAID SUPPORT HAVING A PAIR OF VERTICAL SIDE WALLS; A PAIR OF HORIZONTALLY ALIGNED CONE SET SCREWS CARRIED BY SAID SIDE WALLS; A PIVOT ASSEMBLY PIVOTALLY CARRIED TO SAID SET SCREWS THAT INCLUDES A SUPPORT BLOCK FORMED WITH A CONED POCKET THAT RECEIVES ONE OF SAID SET SCREWS AND WITH A HORIZONTAL BORE COAXIAL WITH SAID CONE POCKET, SAID BORE OPENING TOWARDS THE OTHER OF SAID SET SCREWS, SAID PIVOT ASSEMBLY ALSO INCLUDILNG A SLEEVE HORIZONTALLY SLIDABLY DISPOSED WITHIN SAID BORE, THE END OF SAID SLEEVE REMOTE FROM SAID FIRST-MENTIONED CONED POCKET BEING FORMED WITH A SECOND CONED POCKET THAT RECEIVES SAID OTHER SET SCREW, AND SAID PIVOT ASSEMBLY FURTHER INCLUDING A COMPRESSION SPRING INTERPOSED BETWEEN SAID SUPPORT BLOCK AND SAID SLEEVE TO CONSTANTLY URGE THEM APART;
References Cited (Backward Citations)
US1712310A
Cited
US2814306A
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 |