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US 6,317,898 B1Granted
Apparatus for selecting marine toilet flush water
AssigneeRaritan Engineering Company, Inc.
InventorVinod K. Mehta
Life of this patent
Estimating the term…
Abstract
An apparatus is provided for selecting either potable water or seawater as flush water for marine sanitary toilets. The apparatus may be designed to be electrically or manually operated. Check valves and vaccum breaker prevent contamination or waste of the potable water supply.
Claims24
An apparatus for selecting flush water for a marine toilet comprising:
- a. a source of potable water;
- b. a potable water valve hydraulically connecting said potable water source and said toilet;
- c. a source of seawater;
- d. a seawater pump hydraulically connecting said seawater source and said toilet;
- e. means for selecting either said seawater source or said potable water source for flushing said toilet.
2 more elements
An apparatus for selecting flush water for a marine toilet comprising:
- a. a source of potable water;
- b. a potable water valve hydraulically connecting said potable water source and said toilet;
- c. a source of seawater;
- d. a seawater pump hydraulically connecting said seawater source and said toilet;
- e. said potable water valve and said seawater pump being electrically activated, the apparatus further comprising:
- f. a source of electrical power;
- g. an electrical switch having a first and a second position, said switch electrically connecting said power supply to said potable water valve and to said seawater pump;
- h. said switch when in said first position activating said potable water valve to allow the flow of potable water from said potable water source to said toilet and deactivating said seawater pump to prevent the flow of seawater from said seawater source to said toilet;
- i. said switch when in the second position activating said seawater pump to allow the flow of seawater from said seawater source to said toilet and deactivating said potable water valve to prevent the flow of potable water from said potable water source to said toilet.
6 more elements
An apparatus for selecting flush water for a marine toilet comprising:
- a. a source of potable water;
- b. a potable water valve hydraulically connecting said potable water source and said toilet;
- c. a source of seawater;
- d. a seawater pump hydraulically connecting said seawater source and said toilet;
- e. a vacuum breaker hydraulically connected between said toilet and said potable water source and said seawater source to prevent contamination of said seawater source and said potable water source by sewage from said toilet;
- f. a plurality of check valves hydraulically connecting the potable water source and the seawater source and preventing entry of seawater into the potable water source.
3 more elements
An apparatus for selecting flush water for a marine toilet comprising:
- a. a source of potable water;
- b. a potable water valve hydraulically connecting said potable water source and said toilet;
- c. a source of seawater;
- d. a seawater pump hydraulically connecting said seawater source and said toilet;
- e. said seawater pump being manually operated, and said potable water valve comprising a manual potable water valve assembly;
- f. said source of seawater and said source of potable water being in hydraulic communication, said manual potable water valve assembly comprising:
- g. a foot-pedal operated manual potable water valve communicating with said potable water source and controlling the flow of potable water;
- h. a plurality of potable water check valves communicating between said manual potable water valve and said source of seawater and preventing contamination of the potable water source by seawater.
5 more elements
An apparatus for selecting flush water for a marine vessel toilet comprising:
- a. a source of potable water connected to said toilet;
- b. a source of seawater connected to said toilet;
- and
- c. means for selecting either said seawater source or said potable water source as the flush water for flushing said toilet.
1 more element
An apparatus for selecting flush water for a marine vessel toilet comprising:
- a. a source of potable water connected to said toilet;
- b. a source of seawater connected to said toilet;
- and
- c. means for selecting either said seawater source or said potable water source as the flush water for said toilet;
- d. means for preventing sewage contamination of said source of seawater and of said source of potable water;
- said means for preventing sewage contamination of said seawater source and said potable water source comprising a vacuum breaker transmitting flush water from said potable water source and said seawater source to said toilet;
- e. said source of potable water being in communication with said source of seawater, further comprising means for preventing contamination of the potable water source by seawater from the seawater source;
- f. said means for preventing contamination of the potable water source by seawater comprising a plurality of check valves hydraulically connected between the potable water source and the seawater source.
5 more elements
An apparatus for selecting flush water for a marine vessel toilet comprising:
- a. a source of potable water connected to said toilet;
- b. a source of seawater connected to said toilet;
- and
- c. means for selecting either said seawater source or said potable water source as the flush water for said toilet;
- d. said source of potable water being pressurized and said seawater source being the seawater in which the vessel floats.
2 more elements
An apparatus for selecting flush water for a marine vessel toilet comprising:
- a. a source of potable water connected to said toilet;
- b. a source of seawater connected to said toilet;
- and
- c. means for selecting either said seawater source or said potable water source as the flush water for said toilet;
- d. said source of seawater and said source of potable water being in hydraulic communication,
- e. said apparatus further comprising a seawater check valve communicating between said seawater source and said potable water source and preventing potable water from flowing into said seawater source when potable water is selected as the flush water.
3 more elements
Dependencies are inferred from the claim text.