US4787103A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Trapless water flush toilet bowl fixture
Assignee: Inax Corp
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Filing: 1986-09-25
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Granted: 1988-11-29
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Expires: 2006-09-25
Abstract
Abstract A trapless water flush toilet bowl fixture is disclosed. This fixture has: a water closet cesspool sealing member pivotally supported to shut off a waster water discharge port by impinging from underside upon this port; a sinker imparting a sufficient impingement force applied on a lower surface of the discharge port to the water closet cesspool sealing member to maintain a sealing state while resisting a load created when utilizing the same fixture; and a separating force imparting member manipulated by a manpower which member is capable of separating the sealing member from the discharge port by overcoming the impingement force. Furthermore, the trapless water flush toilet bowl fixture subsumes: a bowl having the waste water discharge port formed downwards in the bottom; a cylindrical member arranged to be nearly concentric with respect to the discharge port so that waste materials in the bowl pass therethrough and drop down, the cylindrical member having its diameter that is substantially the same as an aperture of the discharge port; and a ring-shaped seal-packing attachable to and detachable from an inner surface of the lower end of the cylindrical member; and a closing member provided at the lower end of the cylindrical member and making a seesaw motion round a fulcrum, this closing member subsuming a dish-like member which impinges from underside upon the seal-packing and a sinker installed on the opposite side to the dish-like member while interposing the fulcrum therebetween. In this constitution, the seal-packing is attachable to and detachable from the inside of the cylindrical member.
Inventors
- 👤 Makoto Endo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 08:58
CPC Classifications
E; E03; E03D; E03D11/00; E03D11/02; E03D11/10
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
239 words
A trapless water flush toilet bowl fixture comprising, a bowl having a waste water discharge port at a bottom portion thereof, cylindrical means attached to the discharge port of the bowl to allow materials in the bowl to pass therethrough, said cylindrical means having one of concave groove and rib at a lower portion thereof, a seal packing attached to the lower portion of the cylindrical member, said seal packing having one of rib and concave groove to engage said one of concave groove and rib respectively so that the seal packing can be attached to and detached from the cylindrical means through the inside of the cylindrical means, closing means for blocking the waste water discharge port, said closing means including a disk-like member situated adjacent to the bowl to pivot thereto, said disk-like member abutting against the seal packing from underside thereof, and a sinker connected to one end of the dish-like member so that the sinker urges the disk-like member to abut against the seal packing, said disk-like member, when a predetermined amount of weight is applied to the dish-like member, being able to pivot relative to the bowl to open the waste water discharge port, and operation means for opening the waste water discharge port, said operation means being connected to the dish-like member so that when the operation means is actuated, the dish-like member pivots to allow materials on the dish-like member to drop.
Claim 2
Dependent Claim
239 words
A trapless water flush toilet bowl fixture comprising, a bowl having a waste water discharge port at a bottom portion thereof, cylindrical means attached to the discharge port of the bowl to allow materials in the bowl to pass therethrough, said cylindrical means having one of concave groove and rib at a lower portion thereof, a seal packing attached to the lower portion of the cylindrical member, said seal packing having one of rib and concave groove to engage said one of concave groove and rib respectively so that the seal packing can be attached to and detached from the cylindrical means through the inside of the cylindrical means, closing means for blocking the waste water discharge port, said closing means including a disk-like member situated adjacent to the bowl to pivot thereto, said disk-like member abutting against the seal packing from underside thereof, and a sinker connected to one end of the dish-like member so that the sinker urges the disk-like member to abut against the seal packing, said disk-like member, when a predetermined amount of weight is applied to the dish-like member, being able to pivot relative to the bowl to open the waste water discharge port, and operation means for opening the waste water discharge port, said operation means being connected to the dish-like member so that when the operation means is actuated, the dish-like member pivots to allow materials on the dish-like member to drop.
Claim 3
Dependent Claim
84 words
A trapless water flush toilet bowl fixture as set forth in claim 1, wherein said operation means includes a valve handle for controlling water supply to the bowl, a bottom-open handle for controlling movement of the dish-like member, and a cable connected between the bottom-open and the disk-like member, said fixture further including a water tank and a pipe situated inside the water tank to prevent water from entering into the pipe, said cable passing through the pipe and connected to the bottom-open handle.
Claim 4
Dependent Claim
43 words
A trapless water flush toilet bowl fixture as set forth in claim 2, wherein said pipe is deformable by applying force and is capable of maintaining the deformed configuration while said pipe is disposed within said tank for a long period of time.
Claim 5
Dependent Claim
50 words
A trapless water flush toilet bowl fixture as set forth in claim 2, wherein said cable subsumes an tube-like flexible outer cable and a flxible inner cable inserted in said outer cable, said inner cable being capable of sliding in the direction of its axial line within said outer cable.
Claim 6
Dependent Claim
87 words
A trapless water flush toilet bowl fixture as set forth in claim 4, wherein said cable is disposed in a sufficiently flexible state; a free-state terminal is formed on said outer cable; and a spring for setting a tensile load is provided on said terminal, so that a rotational force which is smaller than a preset-value is applied on said closing means on account of said spring being deformed when a load that is greater than a preset-pressure of said spring is applied on said outer cable.
Claim 7
Dependent Claim
111 words
A trapless water flush toilet bowl fixture as set forth in claim 4, wherein a moving member is provided at a terminal of at least one end of said inner cable which moving member is biased in the direction opposite to the direction of application of the tensile load by a spring for setting said tensile load; and a lever for turning said closing means is interposed between said moving member and said inner cable, so that said rotational force which is smaller than said preset-value is applied on said closing means because of said spring being deformed when the load acting on said inner cable is greater than said preset-pressure.
Claim 8
Dependent Claim
26 words
A trapless water flush toilet bowl fixture as set forth in claim 4, wherein a radius of curvature of said cable is 500 mm or more.
Claim 9
Dependent Claim
36 words
A trapless water flush toilet bowl fixture as set forth in claim 1, wherein a ring-shaped packing holding means for holding said seal-packing from above is attached to an inner peripheral surface of said cylindrical member.
Claim 10
Dependent Claim
50 words
A trapless water flush toilet bowl fixture as set forth in claim 8, wherein an aperture of said waste water discharge port formed in said bowl bottom is the same or slightly smaller than both an inside diameter of said seal-packing and an inside diameter of said packing holding means.
Claim 11
Dependent Claim
36 words
A trapless water flush toilet bowl fixture as set forth in claim 8, wherein an outside diamter of said packing holding means is smaller than said aperture of said waste water discharge port of said bowl.
Claim 12
Dependent Claim
37 words
A trapless water flush toilet bowl fixture as set forth in claim 8, wherein a curved surface extending from an inner surface of said bowl to a lower opening of said seal-packing is consecutively smooth in configuration.
Claim 13
Dependent Claim
229 words
A trapless water flush toilet device comprising, a water tank, a bowl connected to the water tank and having a waste water discharge port at a bottom portion thereof, closing means for blocking the waste water discharge port, said closing means including a dish-like member attached to the bowl to abut against the waste water discharge port from underside thereof and a sinker connected to one end of the dish-like member so that the sinker urges the dish-like member to abut against the waste water discharge port, said dish-like member, when a predetermined amount of weight is applied to the dish-like member, being able to pivot relative to the bowl to open the waste water discharge port, and operation means for controlling the closing means and an amount of water to be flushed, said operation means including a valve handle for controlling water supply from the water tank to the bowl, a bottom-open handle, a cable connected between the bottom-open handle and the dish-like cable so that when the bottom-open handle is actuated in one direction, the cut-off mechanism operates to prevent movement of the dish-like member even if a large amount of weight is applied to the dish-like member, and when the bottom-open handle is actuated in the other direction, the cut-off mechanism is released and the dish-like member is pivoted to open the waste water discharge port.
Claim 14
Dependent Claim
229 words
A trapless water flush toilet device comprising, a water tank, a bowl connected to the water tank and having a waste water discharge port at a bottom portion thereof, closing means for blocking the waste water discharge port, said closing means including a dish-like member attached to the bowl to abut against the waste water discharge port from underside thereof and a sinker connected to one end of the dish-like member so that the sinker urges the dish-like member to abut against the waste water discharge port, said dish-like member, when a predetermined amount of weight is applied to the dish-like member, being able to pivot relative to the bowl to open the waste water discharge port, and operation means for controlling the closing means and an amount of water to be flushed, said operation means including a valve handle for controlling water supply from the water tank to the bowl, a bottom-open handle, a cable connected between the bottom-open handle and the dish-like cable so that when the bottom-open handle is actuated in one direction, the cut-off mechanism operates to prevent movement of the dish-like member even if a large amount of weight is applied to the dish-like member, and when the bottom-open handle is actuated in the other direction, the cut-off mechanism is released and the dish-like member is pivoted to open the waste water discharge port.
Claim 15
Dependent Claim
30 words
A trapless water flush toilet device as set forth in claim 12, wherein said operation means further includes a rack attached to the cable, said bottom-open handle engaging the rack.
Claim 16
Dependent Claim
80 words
A trapless water flush toilet device as set forth in claim 13, wherein said cut-off mechanism comprises at least one seizing groove formed on a lower portion of the rack, a hook situated at the opposite side of the seizing groove, and a spring attached to the hook to urge the hook toward the seizing groove, said hook, when the rack is moved upwardly by means of the bottom-open handle, engaging the seizing groove to thereby lock the dish-like member.
Claim 17
Dependent Claim
56 words
A trapless water flush toilet device as set forth in claim 14, wherein said valve and bottom-open handles are engaged together so that while the valve handle can move freely relative to the bottom-open handle, when the bottom-open handle is move to release the cut-off mechanism, the valve handle is moved together with the bottom-open handle.
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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) | 1991-11-29 | 1992-05-30 | 1992-11-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-11-29 | 1996-05-30 | 1996-11-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-11-29 | 2000-05-30 | 2000-11-29 | $7700.00 | Window Closed / Lapsed |