Patent US3842445A successfully refreshed from Google Patents.
US3842445A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fresh water flush portable toilet
Assignee: Individual
•
Filing: 1972-10-05
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Granted: 1974-10-22
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Expires: 1992-10-05
Abstract
Abstract The toilet of this invention comprises a rigid commode having a lower hollow portion and an upper portion which fits on and is removably secured thereto. The lower portion constitutes a holding tank for ''''dark water,'''' or sewage. The upper portion is formed with a conventional toilet seat and is provided with a depending bowl having an outlet to discharge into the storage tank. A fresh water container formed of flexible plastic material is mounted in the holding tank and generally conforms to it in shape. A pump is provided to withdraw water from the container and discharge it into the bowl. As the water is withdrawn, the container collapses and provides displacement for the sewage. Thus, both the fresh water and the sewage occupy the same holding tank volume simultaneously without being intermingled.
Inventors
- 👤 S Jones
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 18:20
CPC Classifications
A; A47; A47K; A47K11/00; A47K11/02; A47K11/03; Y; Y02; Y02A; Y02A50/00; Y02A50/30; Y10; Y10S; Y10S4/00; Y10S4/19
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
112 words
A fresh water flushing portable toilet, comprising: a rigid commode having a hollow lower portion serving as a holding tank for sewage, and an upper portion formed with a toilet seat and provided with a depending bowl having an outlet to discharge into the holding tank; a collapsible container for fresh water mounted within the holding tank; and pump means to withdraw fresh water from the container and discharge it into the bowl to flush the latter; the container being adapted to collapse as the fresh water is withdrawn to provide displacement volume for the sewage and permit both fresh water and sewage to occupy the holding tank simultaneously without being intermingled.
Claim 2
Dependent Claim
112 words
A fresh water flushing portable toilet, comprising: a rigid commode having a hollow lower portion serving as a holding tank for sewage, and an upper portion formed with a toilet seat and provided with a depending bowl having an outlet to discharge into the holding tank; a collapsible container for fresh water mounted within the holding tank; and pump means to withdraw fresh water from the container and discharge it into the bowl to flush the latter; the container being adapted to collapse as the fresh water is withdrawn to provide displacement volume for the sewage and permit both fresh water and sewage to occupy the holding tank simultaneously without being intermingled.
Claim 3
Dependent Claim
44 words
A toilet as claimed in claim 1; wherein the container has substantially the same lateral dimensions as the holding tank, and its upper wall is at substantially the same elevation as the lower end of the bowl outlet to provide maximum fresh water storage.
Claim 4
Dependent Claim
66 words
A toilet as claimed in claim 2; wherein one container wall is formed from top to bottom with a recess in horizontal planform in general alignment with the outlet to define a vertical flow path from the outlet to the bottom of the holding tank and to provide a total displacement for sewage which is greater than the total displacement of the container for fresh water.
Claim 5
Dependent Claim
38 words
A toilet as claimed in claim 3; wherein a closure valve is provided to normally cover the outlet opening; and the recess in the container wall is located to provide clearance for the opening movement of the valve.
Claim 6
Dependent Claim
46 words
A toilet as claimed in claim 3; wherein a cleanout aperture is formed in the part of a wall of the holding tank which is in alignment with the lower end of the recess in the container to facilitate emptying and cleaning of the holding tank.
Claim 7
Dependent Claim
135 words
A toilet as claimed in claim 3; wherein the pump means includes a pump barrel which extends vertically down from the upper wall of the upper portion of the commode and is fixed thereto, and extends down through the upper wall of the container and is fixed thereto; and a fresh water filler tube extends vertically down through the upper wall of the upper portion of the commode and is fixed thereto, and extends down through the upper wall of the container and is fixed thereto; the connections of the barrel and tube to the container upper wall being adjacent to the container side wall which is formed with the recess, and spaced away from the recess in opposite directions to serve to retain the recess in proper alignment with the outlet of the bowl.
Claim 8
Dependent Claim
76 words
A toilet as claimed in claim 1; wherein the pump means includes a vertical pump barrel having an inlet adjacent to its lower end; the barrel extending into the container to a point adjacent its bottom wall to retain that portion of the wall in its lower position as the remainder of the container is displaced upward by sewage and thereby to insure that all of the fresh water will flow down to the pump inlet.
Claim 9
Dependent Claim
55 words
A toilet as claimed in claim 7; wherein the pump barrel extends down through the upper wall of the upper portion of the commode and is fixed thereto; and the barrel also extends down through the upper wall of the container and is fixed thereto to retain that portion of the wall in fixed position.
References Cited (Backward Citations)
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Cited
US3289214A
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US3418664A
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US3570018A
Cited
US3609772A
Cited
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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) | 1977-10-21 | 1978-04-22 | 1978-10-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-10-21 | 1982-04-22 | 1982-10-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-10-21 | 1986-04-22 | 1986-10-22 | $7700.00 | Window Closed / Lapsed |