US3407412A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device for supplying chemical disinfectant and the like to the trap of a toilet bowl
Assignee: DIAMOND SPEAR CO
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Filing: 1966-06-09
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Granted: 1968-10-29
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Expires: 1986-06-09
Abstract
No abstract record available.
Inventors
- 👤 Clifton T Spear
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 22:49
CPC Classifications
E; E03; E03D; E03D9/00; E03D9/02; E03D9/03; E03D9/033; E03D9/038; E03D2009/024
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
189 words
AN APPARATUS FOR PLACING A CHEMICAL DISINFECTANT OR THE LIKE IN THE TRAP OF A TOILET BOWL AFTER COMPLETION OF THE FLUSH CYCLE AND CLOSING OF THE FLOAT-OPERATED WATER INLET VALVE IN THE FLUSH TANK, SAID APPARATUS COMPRISING A CONTAINER MOUNTABLE WITHIN THE FLUSH TANK, SAID CONTAINER BEING COMPARTMENTED AND HAVING A RELATIVELY SMALL CONTROL CHAMBER AND A RELATIVELY LARGE CHEMICAL CHAMBER, AN OVERFLOW PIPE SECTION ON THE CONTAINER PROJECTING INTO THE CONTROL CHAMBER AND ALSO PROJECTING INTO THE OVERFLOW PIPE OF THE FLUSH TANK, SAID OVERFLOW PIPE SECTION HAVING A SMALL OPENING NEAR THE BOTTOM OF THE CONTROL CHAMBER SO THAT LIQUID MAY DRAIN GRADUALLY FROM THE CONTROL CHAMBER, LIQUID INLET MEANS LEADING INTO THE CONTROL CHAMBER AND CONNECTED WITH THE INLET MEANS OF THE FLUSH TANK, AND A SYPHONING DEVICE INTERCONNECTING SAID CONTROL AND CHEMICAL CHAMBERS AND INCLUDING A SYPHONING LEG IN EACH CHAMBER, SAID SYPHONING DEVICE OPERABLE FIRST TO FILL THE CHEMICAL CHAMBER AFTER LIQUID RISES WITHIN THE CONTROL CHAMBER AND THEN TO DRAIN THE CHEMICAL CHAMBER BY SYPHONING AFTER THE LIQUID IN THE CONTROL CHAMBER DRAINS INTO THE OVERFLOW PIPE SECTION THROUGH SAID SMALL OPENING.
Claim 2
Independent Claim
189 words
AN APPARATUS FOR PLACING A CHEMICAL DISINFECTANT OR THE LIKE IN THE TRAP OF A TOILET BOWL AFTER COMPLETION OF THE FLUSH CYCLE AND CLOSING OF THE FLOAT-OPERATED WATER INLET VALVE IN THE FLUSH TANK, SAID APPARATUS COMPRISING A CONTAINER MOUNTABLE WITHIN THE FLUSH TANK, SAID CONTAINER BEING COMPARTMENTED AND HAVING A RELATIVELY SMALL CONTROL CHAMBER AND A RELATIVELY LARGE CHEMICAL CHAMBER, AN OVERFLOW PIPE SECTION ON THE CONTAINER PROJECTING INTO THE CONTROL CHAMBER AND ALSO PROJECTING INTO THE OVERFLOW PIPE OF THE FLUSH TANK, SAID OVERFLOW PIPE SECTION HAVING A SMALL OPENING NEAR THE BOTTOM OF THE CONTROL CHAMBER SO THAT LIQUID MAY DRAIN GRADUALLY FROM THE CONTROL CHAMBER, LIQUID INLET MEANS LEADING INTO THE CONTROL CHAMBER AND CONNECTED WITH THE INLET MEANS OF THE FLUSH TANK, AND A SYPHONING DEVICE INTERCONNECTING SAID CONTROL AND CHEMICAL CHAMBERS AND INCLUDING A SYPHONING LEG IN EACH CHAMBER, SAID SYPHONING DEVICE OPERABLE FIRST TO FILL THE CHEMICAL CHAMBER AFTER LIQUID RISES WITHIN THE CONTROL CHAMBER AND THEN TO DRAIN THE CHEMICAL CHAMBER BY SYPHONING AFTER THE LIQUID IN THE CONTROL CHAMBER DRAINS INTO THE OVERFLOW PIPE SECTION THROUGH SAID SMALL OPENING.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-10-29 | 1972-04-29 | 1972-10-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-10-29 | 1976-04-29 | 1976-10-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-10-29 | 1980-04-29 | 1980-10-29 | $7700.00 | Window Closed / Lapsed |