Baths – closets – sinks – and spittoons – Flush closet – Tank only
Patent
1996-03-28
1998-12-01
Phillips, Charles E.
Baths, closets, sinks, and spittoons
Flush closet
Tank only
4325, E03D 136
Patent
active
058422366
DESCRIPTION:
BRIEF SUMMARY
The invention relates to a device for refilling and emptying lavatory flushing cisterns of the type which allows the user to choose either a weak or heavy flush.
BACKGROUND OF THE INVENTION
It is also of the type in which the flush valve and mechanism co-operate to form a homogeneous unit, the various parts of which are housed inside an inner tank.
The latter principle is known particularly from European Patent No. 01722778 A 3, but in the case of the present invention, the overflow device comprises arrangements which, when flushed, are aimed at providing a guide to prevent the water from being forced back into the lavatory cistern.
BRIEF DESCRIPTION OF THE DRAWINGS
To understand the invention fully, reference is made to the attached non-limiting drawings.
FIGS. 1, 2 and 3 are longitudinal sections which show the different phases of flush operation, i.e.:
FIG. 4 shows the flush valve and mechanism unit mounted in an inner tank with its overflow device.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS
The body of the flush valve along comprises a parallelepiped-shaped element (1) arranged horizontally which comprises a rectangular-section opening (2). The longitudinal axis (3) of the element (1) is perpendicular to the axis (5) of the opening (2).
On one side of the opening (2) along the axis (3) a horizontal cylindrical tube (6) is arranged which, on one side, discharges into the opening (2) and, on the other, comprises a shoulder (7) of greater diameter than that of (6) and which is extended by a cylindrical compartment (8) into which water enters under pressure.
A downward-directed open vertical tube (9) guided downwards is connected to the tube (6) in the proximity of (7).
A ball (10) of greater diameter than that of (6) is placed inside the compartment (8) in such a way that, under the effect of pressure, the ball abuts the shoulder (7) so as to be sealing-tight.
A valve (11) slides inside (6) and, on the side of (7), carries a nipple (12) of lesser diameter than that of (11).
A cam (13) slides vertically inside the opening (2) and comprises a ramp (14). The cam (13) is made rigid with a floater (18) by any means, such as for example a rod (19) arranged at right angles;
The unit is arranged in such a way that when the flush valve is in the closed position: valve (11). abutting its seat (7).
Two horizontal elements (21) and (22) bear upon the upper horizontal side (20) of the cam (13), on the top of which elements vertical rods (23) and (24) are secured.
The elements (21) and (22) co-operate with any device for lifting the overflow tube (25), the said device may for example comprise a fork (27) which, by pivoting about a horizontal axis (28) moves a rocker bar (29), the unit being arranged in such a way that the tube (25) is lifted irrespective of which control rod is used.
The tube (25) which carries the emptying valve (30) at its base also carries, at its lower portion, a floater (31), then at its intermediate portion, a floater (32) and lastly, at its upper portion a horizontal projecting element (33).
An element (35) pivots freely about an axis (34) parallel to (28), whereas below either one of the control elements, for example (21) and rod (36) is fastened, the element (35) and the rod (36) being in the same vertical plane.
The element (35) is arranged and suspended in such a way that, in the normal gravity position, one of its sides comprises an inclined ramp (37) the lower end (38) of which is located in the vertical lifting space of the element (33).
The rod (36), in turn, then comes into contact with the ramp (37) at its end (39) in such a way that pushing down said rod (36) causes the element (35) to pivot, the end (38) of which exceeds the element (33) lift range.
The device operates as follows, the reference to FIG. 1; the cistern is full:
Pushing down either of the rods (23) or (24) lowers the cam (13) whose ramp (14) shifts the valve (11) which, via at its end (12) separates the ball (10) from its seat (7)
Water then circulates from the compartment (8) to the open tube (9) and fi
REFERENCES:
patent: 4882793 (1989-11-01), Thompson
Phillips Charles E.
Videau Jean
Videau Laurent
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