Patent US3949431A successfully refreshed from Google Patents.
US3949431A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Latrines
Assignee: TECHNICAL INNOVATION CO FOR COMMERCE AND IND TICCI
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Filing: 1974-11-07
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Granted: 1976-04-13
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Expires: 1994-11-07
Abstract
Abstract A pit-type latrine with a capability of sealing the escape of odors and the ingress of insects, including a chute and a tippable pan at the lower zone of the chute adapted to contain a quantity of water.
Inventors
- 👤 Peter Roger Morgan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 09:41
CPC Classifications
E; E03; E03D; E03D11/00; E03D11/02; E03D11/10
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
211 words
A non-flushing device adapted to seal a lavatory arrangement from escape of odors, and ingress of insects, comprising a `seat` defining an inlet opening, a chute positioned below the `seat` and defining a passageway which is directed substantially downwardly from said inlet opening and terminates at its lower end in an outlet opening, and a tippable pan mounted at the lower end of the chute and arranged to tip downwardly from a normal or substantially horizontal position towards a substantially vertical discharge position, the pan having a rim which surrounds the lower end of the chute above the outlet opening when the pan is in its normal position yet permits the contents of the pan to discharge downwardly from the pan when the pan tips towards its discharge position, and the device also comprising valve means for admitting water to the pan, and level-sensitive means which act on the valve means to discontinue admission of water to the pan when the level of water in the pan reaches a preselected level above said outlet opening, the pan being arranged and adapted to remain in its normal position when it contains water up to said preselected level but to tip towards its discharge position upon addition of further material to the pan.
Claim 2
Dependent Claim
211 words
A non-flushing device adapted to seal a lavatory arrangement from escape of odors, and ingress of insects, comprising a `seat` defining an inlet opening, a chute positioned below the `seat` and defining a passageway which is directed substantially downwardly from said inlet opening and terminates at its lower end in an outlet opening, and a tippable pan mounted at the lower end of the chute and arranged to tip downwardly from a normal or substantially horizontal position towards a substantially vertical discharge position, the pan having a rim which surrounds the lower end of the chute above the outlet opening when the pan is in its normal position yet permits the contents of the pan to discharge downwardly from the pan when the pan tips towards its discharge position, and the device also comprising valve means for admitting water to the pan, and level-sensitive means which act on the valve means to discontinue admission of water to the pan when the level of water in the pan reaches a preselected level above said outlet opening, the pan being arranged and adapted to remain in its normal position when it contains water up to said preselected level but to tip towards its discharge position upon addition of further material to the pan.
Claim 3
Dependent Claim
25 words
A device as claimed in claim 1 wherein the `seat` is a squat platform arranged and adapted to overlie a pit dug into the ground.
Claim 4
Dependent Claim
81 words
A device as claimed in claim 1 wherein the chute comprises a plastics material frustro-conical member adapted to mate with the lower surface of a lavatory seat arrangement and to extend downwardly therefrom into a pit dug into the ground and the tippable pan is formed from a plastics material into the general shape of a scoop adapted to fit loosely around the lower rim of the chute when in the normal or substantially horizontal position and to overlap the rim.
Claim 5
Dependent Claim
64 words
A device as claimed in any one of claim 1 wherein the tippable pan is pivotally mounted upon a pair of bearing members extending substantially laterally from the outer sides of the chute to mate with a pair of holes in the upper edge of the pan; and wherein the scoop-like shape of the tippable pan creates an inherently unstable configuration about the bearings.
Claim 6
Dependent Claim
69 words
A device as claimed in any one of claim 1 wherein the tippable pan is provided with a counterbalance weight fast with the more rounded or shorter limb of the pan when viewed relative to the bearing axes; the counterbalance weight being arranged and adapted to exert a degree control to the inherently unstable configuration of the tippable pan when water is added to the interior of the pan.
Claim 7
Dependent Claim
96 words
A device as claimed in any one of claim 1 wherein the valve means comprises a substantially vertically disposed needle assembly held in a cylindrical guide and seat arrangement the lower end of the needle being associated with a float adapted to sense the level of water in the tippable pan and to regulate the flow of water through the needle and seat by pressure exerted upon the lower zone of the needle and to drive the needle upwardly into engagement with the seat when the water level reaches a pre-determinable level in the tippable pan.
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) | 1979-04-13 | 1979-10-13 | 1980-04-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-04-13 | 1983-10-13 | 1984-04-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-04-13 | 1987-10-13 | 1988-04-13 | $7700.00 | Window Closed / Lapsed |