US3958280A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flushing valve
Assignee: Individual
•
Filing: 1975-05-19
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Granted: 1976-05-25
•
Expires: 1995-05-19
Abstract
Abstract An improved flushing valve for inter-connecting a water closet with a waste dispensing bowl for preventing overflow in the event of a line stoppage. The valve is opened in the ordinary manner and held open by the action of fluid flowing through the valve onto a floatable member having a positive buoyancy that maintains the valve in an open condition in the presence of fluid flow. In the absence of a fluid flow, the valve is allowed to close. In the presence of a line stoppage, overflow fluid will tend to back up causing the floatable member having a positive buoyancy to release the valve which is allowed to close thereby preventing discharge of any further fluid from the water closet. All attempts to operate the water valve will fail as long as the floatable member is held in a floatable condition by the overflow fluid.
Inventors
- 👤 Bobbie R. Smith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 09:50
CPC Classifications
E; E03; E03D; E03D5/00; E03D5/02; E03D5/026; E03D1/00; E03D1/30; E03D1/304
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
107 words
A water closet flushing valve comprising: a valve body having a valve seat and a centrally located valve guide located below said valve seat in the normal flow pattern, a valve for nesting with said valve seat and having a valve stem adapted to fit within said valve guide, and a floatable member attached to a flexible resilient portion of said valve guide wall for interfering with the movement of said valve stem, said float being located in said flow pattern whereby fluid flow through the valve seat contacts said floatable member which flexes the valve guide wall for interfering with the movement of the valve stem.
Claim 2
Dependent Claim
107 words
A water closet flushing valve comprising: a valve body having a valve seat and a centrally located valve guide located below said valve seat in the normal flow pattern, a valve for nesting with said valve seat and having a valve stem adapted to fit within said valve guide, and a floatable member attached to a flexible resilient portion of said valve guide wall for interfering with the movement of said valve stem, said float being located in said flow pattern whereby fluid flow through the valve seat contacts said floatable member which flexes the valve guide wall for interfering with the movement of the valve stem.
Claim 3
Dependent Claim
30 words
A valve according to claim 1 in which said valve seat is circular and centrally attached to said valve guide by a plurality of vanes located below said valve seat.
Claim 4
Dependent Claim
27 words
A valve according to claim 1 in which said valve is solid and said valve stem is fixedly attached to the central portion of said solid valve.
Claim 5
Dependent Claim
38 words
A valve according to claim 1 in which fluid flow contacting said floatable member flexes said valve guide wall for stopping said valve stem at a discrete position that prevents the valve from nesting with the valve seat.
Claim 6
Dependent Claim
21 words
A valve according to claim 1 in which said floatable member has a positive buoyancy in the fluid medium being controlled.
Claim 7
Dependent Claim
54 words
A valve according to claim 1 in which said floatable member has a cylindrical opening defining a cylinder that is off-set with respect to the center of said member for accepting said valve guide and in which a portion of said cylinder is fixedly attached to said flexible resilient portion of said valve guide.
Claim 8
Dependent Claim
198 words
A water closet flushing valve comprising: a valve body having a valve seat and a centrally located valve guide located below said valve seat in the normal flow pattern, said valve body being circular and centrally attached to said valve guide by a plurality of vanes located below said valve seat, a valve for nesting with said valve seat and having a solid stem adapted to fit into said valve guide, said stem being solid and fixedly attached to the central portion of said solid valve, a floatable member attached to a flexible resilient portion of said valve guide wall for stopping said stem at a discrete position that prevents the valve from nesting with the valve seat, said floatable member being located in said flow pattern whereby fluid flow through the valve seat contacts said floatable member which flexes the valve guide wall for stopping said valve from closing, and said floatable member having a positive buoyancy in the fluid medium being controlled for floating in the fluid in the presence of a stoppage to prevent said flexible valve guide wall from stopping the closure of the valve thereby closing said valve to prevent further fluid flow.
Claim 9
Dependent Claim
198 words
A water closet flushing valve comprising: a valve body having a valve seat and a centrally located valve guide located below said valve seat in the normal flow pattern, said valve body being circular and centrally attached to said valve guide by a plurality of vanes located below said valve seat, a valve for nesting with said valve seat and having a solid stem adapted to fit into said valve guide, said stem being solid and fixedly attached to the central portion of said solid valve, a floatable member attached to a flexible resilient portion of said valve guide wall for stopping said stem at a discrete position that prevents the valve from nesting with the valve seat, said floatable member being located in said flow pattern whereby fluid flow through the valve seat contacts said floatable member which flexes the valve guide wall for stopping said valve from closing, and said floatable member having a positive buoyancy in the fluid medium being controlled for floating in the fluid in the presence of a stoppage to prevent said flexible valve guide wall from stopping the closure of the valve thereby closing said valve to prevent further fluid flow.
Claim 10
Dependent Claim
190 words
In a water closet a valve adapted to close in the event of a stoppage comprising: a valve body mounted in the lowermost portion of a water closet, said valve body having a centrally located hollow valve guide located below said valve body in the normal flow pattern, a valve for nesting with said valve seat and having a solid stem adapted to fit into said valve guide, said valve having a chain adapted to be connected to a control associated with said water closet for opening said valve, a floatable member attached to a flexible resilient portion of said valve guide wall for interfering with the movement of said stem, said floatable member being located in said flow pattern for flexing said valve guide wall and preventing said valve from closing during the flow of fluid, and said floatable portion having a positive buoyancy for floating in the fluid in the presence of a stoppage for preventing said flexible valve guide wall from interfering with the closure of said valve thereby closing said valve to prevent further fluid flow from the water closet in the event of a stoppage.
Claim 11
Dependent Claim
190 words
In a water closet a valve adapted to close in the event of a stoppage comprising: a valve body mounted in the lowermost portion of a water closet, said valve body having a centrally located hollow valve guide located below said valve body in the normal flow pattern, a valve for nesting with said valve seat and having a solid stem adapted to fit into said valve guide, said valve having a chain adapted to be connected to a control associated with said water closet for opening said valve, a floatable member attached to a flexible resilient portion of said valve guide wall for interfering with the movement of said stem, said floatable member being located in said flow pattern for flexing said valve guide wall and preventing said valve from closing during the flow of fluid, and said floatable portion having a positive buoyancy for floating in the fluid in the presence of a stoppage for preventing said flexible valve guide wall from interfering with the closure of said valve thereby closing said valve to prevent further fluid flow from the water closet in the event of a stoppage.
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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) | 1979-05-25 | 1979-11-24 | 1980-05-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-05-25 | 1983-11-24 | 1984-05-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-05-25 | 1987-11-24 | 1988-05-25 | $7700.00 | Window Closed / Lapsed |