Classifications

• • E—FIXED CONSTRUCTIONS
  • E03—WATER SUPPLY; SEWERAGE
  • E03D—WATER-CLOSETS OR URINALS WITH FLUSHING DEVICES; FLUSHING VALVES THEREFOR
  • E03D5/00—Special constructions of flushing devices, e.g. closed flushing system
  • E03D5/012—Special constructions of flushing devices, e.g. closed flushing system combined with movable closure elements in the bowl outlet

Definitions

• the present invention generally relates to a closet being favourable to the environment, i.e. a toilet with no, or the least possible, need for flushing water.
• forms of closets have- an underlying* rartJ for collecting excrement (solids and liquid) from the closet after use.
• a sewage system without such a tank, comprising a pipe connection to lower parts of the closet bowl or structure.
• This patent specification relates to a closet having an outlet being directed substantially vertically and being provided with an invertible collecting and emptying member having a mainly horizontal axis of rotation located adjacent to a peripheral edge portion of the member, where this member in its collecting and emptying position respectively, tightly engages the outlet.
• German Patent No. 150.023 is directed to a closet having an invertible collecting bowl, which, however, in the first place is adapted to constitute a scale pan for weigh ⁇ ing delivered excrement. It is obvious that also this known design involves great difficulties in obtaining appropriate sealing, and the problem of odour will be very pronounced.
• Norwegian Patent No. 1.143 shows a closet having a valve or sluice device in the form of a drum being rotate- able about a horizontal axis in a particular housing being correspondingly shaped, among other things for the purpose of preventing any smell from penetrating from lower parts of the installation.
• a complicated and expensive design which is not very prac ⁇ tical in use.
• US Patent No. 3.663.970 which in connection with vacuum closets comprises a form of ball valve at the bottom of each closet bowl, for obtaining relatively good tightness in the closed position. Good sealing however, is not obtained in the inverted or open position of the valve.
• the novel and specific features of the water-saving closet according to the invention consist in the first place in that said collecting and emptying member, approximately and at least outwardly, constitutes one half of a surface of rotation formed by a curved line rotated about a geometric axis coinciding substantially with the horizontal arris f rotation, and in that the outlet along its portion cooper ⁇ ating with said member, is cylindrical with an internal cross-secional contour which substantially corresponds to said curved line plus the mirror image of the curve.
• the above surface of rotation is formed by a hemisphere, an ellipsoid or another geometrical shape
• Such an embodiment results in an advantageous movement pattern, where the outer surfaces of the collecting member during the inverting movement dis ⁇ cussed, are rotated at a certain, small distance from the surrounding outlet portion, whereas the member in its rest position and collecting position respectively, in a well sealed way is engaged against the outlet portion around the whole circumference at the above peripheral edge portion of t e collecting member.
• FIG. 1 in vertical cross-section and somewhat simplified shows a possible embodiment of a water-saving closet according to the invention, with a he i- spherical collecting and emptying member,
• Fig. 2 in principle shows an alternative form of collect ⁇ ing and emptying member, based on ellipse-elips- oidal shapes
• Fig. 3 shows a further alternative form of emptying mem- ber, i.e. having an approximate egg-shape.
• fig. 1 shows a design based on an approximately conventional shape of the main part or the actual closet bowl or stool 10. This however is relatively deep and very steep, being almost vertical at the front edge.
• an invertible collecting cup 2 which has an important function in the assembly. Cup member 2 in the position shown (full lines) has for its function to collect waste material being delivered to the closet during its use, at the same time as the cup member 2 will have a good seal ⁇ ing effect against the surrounding portion of the bowl 10. More specificly this is provided with an outlet 1 being to a substantial degree directed vertically and having at the top a cylindrical portion 1A adapted to cooperate with the edge portion or the outer circumference of member 2.
• the outlet 1 is provided with a projecting drip nose IB which can be conv ⁇ D ⁇ eat in practice when considering that the* waste* mentioned, and in particular liquid contents, will drip or flow down in the outlet system below the actual outlet 1, without being impeded or diverted at junction or connection points in the vertical pipe system below.
• a projecting drip nose IB which can be conv ⁇ D ⁇ eat in practice when considering that the* waste* mentioned, and in particular liquid contents, will drip or flow down in the outlet system below the actual outlet 1, without being impeded or diverted at junction or connection points in the vertical pipe system below.
• axle 4A which more or less approximately can lie in the same plane as the circular edge portion of cup member 2.
• This edge portion is denoted 2A in fig. 1.
• a crank 4 connected to axle 4A, with crank 4 via a rod 3 being connected to an operation element 3A which is accessible to the user.
• the cup member 2 can then after use of the closet, be turned to an inverted position as indicated (dotted) at 2* , so that the contents collected will be emptied and can disappear down through outlet 1 and the pipe system lying under it. Pos ⁇ sibly this can lead to a collecting tank (not shown) for a certain amount of waste.
• cup member 2 and/or the surrounding portion 1A at outlet 1 consist of an elastic or resilient material.
• the actual cup member 2 should consist of such a material which enhances the sealing effect, for example a suitable type of plastic material or rubber.
• a good seal is obtained in the two positions shown at 2 and 2 1 res ⁇ pectively in fig. 1, i.e. the collecting position and the emptying position. Apparently the latter position will be the one preferred when the closet- is not in use, i.e. the rest position. This is due to the observation that cup member 2 normally will be more clean on the outside than the inside.
• cup member 2 of a relat ⁇ ively good heat conducting material, while the surrounding structural parts constituting the closet bowl 10, including the cylindrical portion 1A and the rest of outlet 1, consist of relatively poor heat conducting material.
• con ⁇ densed liquid will form at the inside (i.e. the underside) of the cup 2 so that condensed liquid will contribute to washing or flushing the collecting space within the cup, to have waste remnants removed as desired.
• cup 2 and the surrounding structural parts and portions mentioned have surfaces being water- repellent.
• cup member 2 in fig. 2 as somewhat smaller than one half of a sphere, which means that the peripheral edge portion 2A forms a plane having a smaller distance from the bottom of member 2 than the radius of the complete spherical shape corresponding to the approximate hemisphere. Then the outer surfaces of cup member 2 will be moved somewhat away from the surrounding cylindrical portion 1 during the inverting movement, so that this can take place without hindrance and without any significant friction. In the two positions shown (2 and 2') a good seal is obtained however, as already explained above.
• fig. 1 As an alternative to the hemispherical shape and the corresponding cylindrical portion 1A, as discussed with reference to the example of fig. 1, fig.
• FIG. 2 purely schema ⁇ tically shows a shape based on an elliptic cross-sectional contour of the cylindrical portion 1A, with a complementary half-ellipsoidal shape 22 of the cup member.
• a half- ellipsoidal member 22 is shown in fig. 2 from above (A) and sideways (B) .
• a cup member 22 there is indicated how the axis of rotation is located, corresponding to the axle 4A in fig. 1.
• cup member 32 A further alternative with a somewhat egg-like shape of cup member 32, is shown in fig. 3.
• cup members in the closet can be formed by taking as a starting point a surface ⁇ f* r- ⁇ tare ⁇ generated by rotating a curved line about a geometrical axis being substantially coincident with the horizontal axis of rot- ation, for example 4A in fig. 1, whereas the surrounding and cooperating cylindrical portion of the outlet of the closet, has an internal cross-sectional contour corresponding to the curved geometrical line plus the mirror image thereof, so that a total, closed contour is formed.
• This contour and the shape of the cup member will according to its nature be well rounded, such as some approximate oval shape, among other things for the purpose of providing smooth surfaces and for manufacturing reasons.

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• Engineering & Computer Science (AREA)
• Aviation & Aerospace Engineering (AREA)
• Health & Medical Sciences (AREA)
• Life Sciences & Earth Sciences (AREA)
• Hydrology & Water Resources (AREA)
• Public Health (AREA)
• Water Supply & Treatment (AREA)
• Sanitary Device For Flush Toilet (AREA)

Priority Applications (1)

Applications Claiming Priority (2)

Publications (1)

Family

ID=19898124

Family Applications (1)

Country Status (3)

Cited By (2)

Families Citing this family (1)

Citations (5)

• 1995
  • 1995-04-19 NO NO951470A patent/NO951470L/no unknown
• 1996
  • 1996-04-15 WO PCT/NO1996/000083 patent/WO1996033317A1/en active Application Filing
  • 1996-04-15 AU AU55172/96A patent/AU5517296A/en not_active Abandoned

Patent Citations (5)

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