US3860972A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Toilet flushing assembly
Assignee: Individual
•
Filing: 1973-07-09
•
Granted: 1975-01-21
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Expires: 1993-07-09
Abstract
Abstract A water storage flushing tank for use with toilets is formed with a funnel-shaped lower portion to insure that all water drains fully from the tank each cycle and is at least partially circular cross-section to induce a vortex action in the water when flushing. In a modification, the inner walls of the tank are formed with helical ribs to enhance the vortex action. The tank may be in detachable sections to facilitate servicing. The water control system for the tank includes a dumping valve carried on the end of a stem actuated by a release mechanism and normally closing the drain opening at the base of the tank. The valve element includes an open ended sphere provided with a replaceable resilient sleeve forming a tight seal with the valve seat when closed. A refill mechanism includes a fixed cylinder communicating with an inlet pipe and carrying a movable piston with an upright rod connected thereto. An inverted hemispherical float carried by the rod moves the piston up and down with changes in water level in the tank. The piston is adapted to open and close an inlet port which controls the flow of water into the tank and into the refill tube to an overflow pipe.
Inventors
- 👤 Albert D Costello
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 05:08
CPC Classifications
E; E03; E03D; E03D1/00; E03D1/30; E03D1/01; E03D1/012
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
117 words
A flushing assembly for toilet bowls and the like comprising a. a tank mountable upright to said bowl, b. said tank being formed with a vertically extending inner chamber of arcuate horizontal cross-section, c. at least the lower portions of the inner front, side and rear walls of said chamber defining a funnel and formed with a drain opening at the base thereof communicating with said bowl, d. conduit means connecting said tank to a source of flushing liquid, e. valve means adapted to release liquid from said tank through said opening upon actuation thereof, and, f. refill means connected to said conduit means for automatically refilling said tank with liquid after actuation of said valve means.
Claim 2
Dependent Claim
117 words
A flushing assembly for toilet bowls and the like comprising a. a tank mountable upright to said bowl, b. said tank being formed with a vertically extending inner chamber of arcuate horizontal cross-section, c. at least the lower portions of the inner front, side and rear walls of said chamber defining a funnel and formed with a drain opening at the base thereof communicating with said bowl, d. conduit means connecting said tank to a source of flushing liquid, e. valve means adapted to release liquid from said tank through said opening upon actuation thereof, and, f. refill means connected to said conduit means for automatically refilling said tank with liquid after actuation of said valve means.
Claim 3
Dependent Claim
31 words
A flushing assembly according to claim 1 wherein said tank includes upper and lower sections detachably connected to one another along a joint located below the normal waterline of said tank.
Claim 4
Dependent Claim
123 words
A flushing assembly for toilet bowls and the like, comprising a. a tank mountable upright to said bowl, b. said tank being formed with a vertically extending chamber of arcuate horizontal cross-section, c. the lower portion of said chamber defining a funnel formed with a drain opening at the base thereof communicating with said bowl, d. the inner walls of said tank being formed with substantially helical shoulders oriented about a vertical axis, e. conduit means connecting said tank to a source of flushing liquid, f. valve means adapted to release liquid from said tank through said opening upon actuation thereof, and, g. refill means connected to said conduit means for automatically refilling said tank with liquid after actuation of said valve means.
Claim 5
Dependent Claim
123 words
A flushing assembly for toilet bowls and the like, comprising a. a tank mountable upright to said bowl, b. said tank being formed with a vertically extending chamber of arcuate horizontal cross-section, c. the lower portion of said chamber defining a funnel formed with a drain opening at the base thereof communicating with said bowl, d. the inner walls of said tank being formed with substantially helical shoulders oriented about a vertical axis, e. conduit means connecting said tank to a source of flushing liquid, f. valve means adapted to release liquid from said tank through said opening upon actuation thereof, and, g. refill means connected to said conduit means for automatically refilling said tank with liquid after actuation of said valve means.
Claim 6
Dependent Claim
14 words
A flushing assembly according to claim 3 wherein said chamber defines an inverted cone.
Claim 7
Dependent Claim
85 words
A flushing assembly according to claim 3 wherein said valve means includes a hollow and substantially spherical member open at its lower end and mounted for vertical reciprocation to and away from said drain opening, said member being formed with a circumferential groove and a hemispherical sleeve of resilient material detachably mounted to said member, said sleeve being formed with an opening at its lower end in registration with said ball opening and formed with a rib about its upper margin for engaging said groove.
Claim 8
Dependent Claim
32 words
A flushing assembly according to claim 5 including a vertical stem connected to said member and a fixed tubular guide mounted to the wall of said tank and slidably supporting said stem.
Claim 9
Dependent Claim
180 words
A flushing assembly for toilet bowls and the like, comprising a. a tank mountable upright to said bowl, b. said tank being formed with a vertically extending chamber of arcuate horizontal cross-section, c. the lower portion of said chamber defining a funnel and formed with a drain opening at the base thereof communicating with said bowl, d. conduit means connecting said tank to a source of flushing liquid, e. valve means adapted to release liquid from said tank through said opening upon actuation thereof, and, f. refill means connected to said conduit means for automatically refilling said tank with liquid after actuation of said valve means, g. said refill means including a cylinder formed with a port, a housing enclosing said cylinder and connected to said conduit, a piston mounted for vertical reciprocation in said cylinder and adapted to open and close said port, a connecting rod vertically connected to said piston and a float mounted to said rod and adapted to move said rod and piston up and down with changes in the level of liquid in said chamber.
Claim 10
Dependent Claim
180 words
A flushing assembly for toilet bowls and the like, comprising a. a tank mountable upright to said bowl, b. said tank being formed with a vertically extending chamber of arcuate horizontal cross-section, c. the lower portion of said chamber defining a funnel and formed with a drain opening at the base thereof communicating with said bowl, d. conduit means connecting said tank to a source of flushing liquid, e. valve means adapted to release liquid from said tank through said opening upon actuation thereof, and, f. refill means connected to said conduit means for automatically refilling said tank with liquid after actuation of said valve means, g. said refill means including a cylinder formed with a port, a housing enclosing said cylinder and connected to said conduit, a piston mounted for vertical reciprocation in said cylinder and adapted to open and close said port, a connecting rod vertically connected to said piston and a float mounted to said rod and adapted to move said rod and piston up and down with changes in the level of liquid in said chamber.
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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) | 1978-01-20 | 1978-07-22 | 1979-01-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-01-20 | 1982-07-22 | 1983-01-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-01-20 | 1986-07-22 | 1987-01-21 | $7700.00 | Window Closed / Lapsed |