US3649970A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Automatic incinerating urinal
Assignee: Individual
•
Filing: 1970-05-20
•
Granted: 1972-03-21
•
Expires: 1990-05-20
Abstract
Abstract A waterless urinal comprised of a bowl having a drain which opens into an insulated electric incinerator having a pan in the bottom thereof and switch means actuated by use of the urinal for activating the heater of the urinal for a period of time.
Inventors
- 👤 Ernest Bayne Blankenship
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 03:54
CPC Classifications
A; A47; A47K; A47K11/00; A47K11/02; A47K11/023; Y; Y02; Y02A; Y02A50/00; Y02A50/30
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
93 words
An incinerating urinal including: a bowl; a combustion chamber beneath said bowl; drain means connecting said chamber with said bowl whereby liquid deposited in the bowl immediately drains into said chamber; an electric heating element inside said chamber; an input circuit of electric current; and control means for said heating element including a pair of conductors disposed inside the bowl above said drain means and means responsive to the reduction of electric resistance between said conductors upon the introduction of urine into said bowl for connecting said heating element across said input circuit.
Claim 2
Dependent Claim
93 words
An incinerating urinal including: a bowl; a combustion chamber beneath said bowl; drain means connecting said chamber with said bowl whereby liquid deposited in the bowl immediately drains into said chamber; an electric heating element inside said chamber; an input circuit of electric current; and control means for said heating element including a pair of conductors disposed inside the bowl above said drain means and means responsive to the reduction of electric resistance between said conductors upon the introduction of urine into said bowl for connecting said heating element across said input circuit.
Claim 3
Dependent Claim
31 words
The urinal of claim 1, and grounded screen means in said bowl above said conductors, any liquid being deposited in said bowl first passing through said screen before reaching said conductors.
References Cited (Backward Citations)
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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) | 1975-03-21 | 1975-09-20 | 1976-03-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-03-21 | 1979-09-20 | 1980-03-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-03-21 | 1983-09-20 | 1984-03-21 | $7700.00 | Window Closed / Lapsed |