US4007498A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Toilet ventilator including overflow-responsive sensor
Assignee: Individual
•
Filing: 1976-01-05
•
Granted: 1977-02-15
•
Expires: 1996-01-05
Abstract
Abstract A ventilator for toilets is disclosed which includes an air duct to receive and remove the odorous air, an air suction device to establish the odorous air flow, a control for initiating and terminating the odorous air flow, and a sensor responsive to the presence of water in the overflow duct, so as to terminate the air flow at the moment the toilet is flushed.
Inventors
- 👤 Raymond H. Pearson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 22:06
CPC Classifications
E; E03; E03D; E03D9/00; E03D9/04; E03D9/05; E03D9/052
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
152 words
A toilet deodorizing accessary, said toilet including a toilet bowl and water tank, said water tank including a flushing mechanism and overflow duct, said accessary comprising an air duct in communication with the odorous air within said toilet, air suction means having an intake side and a discharge side, said intake side communicatively connected to said air duct, control means operable to initiate air flow through said air duct, whereby odorous air may be drawn from said toilet, said control means also operable to terminate said air flow, said control means including sensing means responsive to the water rise within said overflow duct, said sensing means having at least one electrically sensible parameter which is a function of said water rise within said overflow duct when said toilet is flushed, whereby said air flow may be terminated in response to said water rise in said overflow duct when said toilet is flushed.
Claim 2
Dependent Claim
152 words
A toilet deodorizing accessary, said toilet including a toilet bowl and water tank, said water tank including a flushing mechanism and overflow duct, said accessary comprising an air duct in communication with the odorous air within said toilet, air suction means having an intake side and a discharge side, said intake side communicatively connected to said air duct, control means operable to initiate air flow through said air duct, whereby odorous air may be drawn from said toilet, said control means also operable to terminate said air flow, said control means including sensing means responsive to the water rise within said overflow duct, said sensing means having at least one electrically sensible parameter which is a function of said water rise within said overflow duct when said toilet is flushed, whereby said air flow may be terminated in response to said water rise in said overflow duct when said toilet is flushed.
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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) | 1980-02-15 | 1980-08-16 | 1981-02-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-02-15 | 1984-08-16 | 1985-02-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-02-15 | 1988-08-16 | 1989-02-15 | $7700.00 | Window Closed / Lapsed |