Patent US3324481A successfully refreshed from Google Patents.
US3324481A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flushing apparatus
Assignee: Individual
•
Filing: 1965-05-28
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Granted: 1967-06-13
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Expires: 1985-05-28
Abstract
No abstract record available.
Inventors
- 👤 Robert M Emerson
- 👤 Verneur E Pratt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 12:52
CPC Classifications
E; E03; E03D; E03D5/00; E03D5/02; E03D5/09; E03D5/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
106 words
IN A TOILET BOWL FLUSHING DEVICE INCLUDING A WATER TANK HAVING AN OUTLET PLUGGED BY A NON-BUOYANT BALL, THE COMBINATION COMPRISING: A SUPPORT MOUNTED ADJACENT THE WATER TANK OUTLET, A LIFT MOVABLY MOUNTED ON THE SUPPORT AND INCLUDING A CAM SURFACE ALIGNED WITH THE BALL, A TIMER CAM MOVABLY MOUNTED ON THE SUPPORT, A CAM FOLLOWER ENGAGED WITH THE TIMER CAM AND COUPLED TO THE LIFT ARM, AND A MOTOR MEANS COUPLED TO THE TIMER CAM FOR AUTOMATICALLY MOVING THE CAM A PREDETERMINED SPAN TO LIFT THE NON-BUOYANT BALL FROM THE OUTLET AND FOR TERMINATING THE MOVEMENT TO PERMIT THE NON-BUOYANT BALL TO CLOSE THE OUTLET.
Claim 2
Dependent Claim
106 words
IN A TOILET BOWL FLUSHING DEVICE INCLUDING A WATER TANK HAVING AN OUTLET PLUGGED BY A NON-BUOYANT BALL, THE COMBINATION COMPRISING: A SUPPORT MOUNTED ADJACENT THE WATER TANK OUTLET, A LIFT MOVABLY MOUNTED ON THE SUPPORT AND INCLUDING A CAM SURFACE ALIGNED WITH THE BALL, A TIMER CAM MOVABLY MOUNTED ON THE SUPPORT, A CAM FOLLOWER ENGAGED WITH THE TIMER CAM AND COUPLED TO THE LIFT ARM, AND A MOTOR MEANS COUPLED TO THE TIMER CAM FOR AUTOMATICALLY MOVING THE CAM A PREDETERMINED SPAN TO LIFT THE NON-BUOYANT BALL FROM THE OUTLET AND FOR TERMINATING THE MOVEMENT TO PERMIT THE NON-BUOYANT BALL TO CLOSE THE OUTLET.
References Cited (Backward Citations)
US1305145A
Cited
FR744156A
Cited
US1501620A
Cited
US1586079A
Cited
US2552625A
Cited
US2448231A
Cited
US3041629A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-06-12 | 1970-12-12 | 1971-06-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-06-12 | 1974-12-12 | 1975-06-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-06-12 | 1978-12-12 | 1979-06-13 | $7700.00 | Window Closed / Lapsed |