US3643265A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Holding tank for marine toilet
Assignee: Individual
•
Filing: 1970-09-04
•
Granted: 1972-02-22
•
Expires: 1990-09-04
Abstract
Abstract A holding tank for a marine toilet comprises a pair of flexible bags, one inside the other and separate from each other. The inner bag is connected to a high point of a siphon line between the exhaust of a marine toilet and the overflow discharge. A separate discharge line also extends from the inner bag. The outer bag is connected to a source of fluid pressure so that pressure can be applied against the inner bag to force the contents thereof through the discharge line.
Inventors
- 👤 George C Wiswell Jr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 12:10
CPC Classifications
E; E03; E03D; E03D5/00; B; B63; B63B; B63B29/00; B63B29/02; B63B29/14; B63B29/16; B63J; B63J4/00; B63J4/006
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
87 words
A marine toilet holding tank comprising a pair of flexible bags one inside the other and separate from each other, the inner bag being connectable to the high point of a siphon line between the exhaust of a marine toilet and its overflow discharge and also being connectable to a discharge line, the outer bag being connectable to a source of fluid pressure, whereby the inner bag will be emptyed through said discharge line when connected thereto and when fluid pressure is applied to said outer bag.
Claim 2
Dependent Claim
87 words
A marine toilet holding tank comprising a pair of flexible bags one inside the other and separate from each other, the inner bag being connectable to the high point of a siphon line between the exhaust of a marine toilet and its overflow discharge and also being connectable to a discharge line, the outer bag being connectable to a source of fluid pressure, whereby the inner bag will be emptyed through said discharge line when connected thereto and when fluid pressure is applied to said outer bag.
Claim 3
Dependent Claim
18 words
A marine toilet holding tank as claimed in claim 1 wherein said flexible bags are of rubberized fabric.
Claim 4
Dependent Claim
111 words
In a marine toilet system, the combination of a siphon line having a high point between the exhaust of a marine toilet and the overflow discharge, a pair of flexible bags one inside the other and separate from each other, first means connecting the inner bag to said high point of the siphon line, a first valve in said first means at the siphon line connection, a second valve in said overflow discharge, a discharge line having a third valve therein connected to said inner bag, and means connected to said outer bag for applying fluid pressure against the inner bag to force the contents thereof out through said discharge line.
Claim 5
Dependent Claim
111 words
In a marine toilet system, the combination of a siphon line having a high point between the exhaust of a marine toilet and the overflow discharge, a pair of flexible bags one inside the other and separate from each other, first means connecting the inner bag to said high point of the siphon line, a first valve in said first means at the siphon line connection, a second valve in said overflow discharge, a discharge line having a third valve therein connected to said inner bag, and means connected to said outer bag for applying fluid pressure against the inner bag to force the contents thereof out through said discharge line.
Claim 6
Dependent Claim
18 words
In a marine toilet system as claimed in claim 3 wherein said first means comprises a flexible hose.
Claim 7
Dependent Claim
20 words
In a marine toilet system as claimed in claim 3 wherein said pressure-applying means comprises a source of compressed air.
References Cited (Backward Citations)
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US3422985A
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US3535712A
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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) | 1975-02-21 | 1975-08-23 | 1976-02-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-02-21 | 1979-08-23 | 1980-02-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-02-21 | 1983-08-23 | 1984-02-22 | $7700.00 | Window Closed / Lapsed |