US3908209A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluid dispensing apparatus
Assignee: OI Glass Inc
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Filing: 1974-04-15
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Granted: 1975-09-30
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Expires: 1994-04-15
Abstract
Abstract A dispensing package for releasing metered quantities of fluid into the flush tank of a toilet. The package includes a fluid container which has an open neck portion. A stationary guide member is secured in the neck. A float member is slideably mounted on the guide member. The entire package is mounted in the flush tank of a toilet with the float member in contact with the water in the tank at the normal high water level. At the high water level, the float member and the guide member are in a first sealing position, thus preventing escape of the fluid in the container. When the tank is emptied, the float member moves downward to a second sealing position. During movement between the first and second sealing positions, a metered quantity of fluid is trapped between two spaced-apart sealing surfaces on the float member. This metered quantity of fluid is dispensed into the tank as the second sealing position is reached.
Inventors
- 👤 William E Fillmore
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 04:22
CPC Classifications
E; E03; E03D; E03D9/00; E03D9/02; E03D9/03; E03D9/033; E03D9/037; E03D2009/028
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
282 words
Apparatus for dispensing metered amounts of fluid, which comprises, in combination: a container for said fluid, said container including a body portion and a neck portion defining an opening into said container; a stationary guide member secured in said neck and filling the opening in said neck, said guide member including a skirt portion extending into said container, an inwardly extending flange portion integrally formed with the end of said skirt portion, and a sealing wall, attached to the end of said flange portion, extending toward said container opening and defining an opening communicating with the contents of said container; a movable metering member, slideably engaged in said opening defined by said sealing wall, said movable metering member including a hollow annular portion with a diameter less than the diameter of said skirt portion of said guide member and extending beyond said container opening, a seal Portion forming a fluid tight seal with said sealing wall when said hollow annular portion is moved toward said container opening to a first sealing position, and an extension portion projecting beyond said seal portion and being closed to prevent the contents of said container from entering said movable metering member; and a sealing ring, carried by said extension portion, said sealing ring forming a fluid tight seal with said sealing wall when said hollow annular portion is moved away from said container opening to a second sealing position, a measured quantity of fluid being trapped between said sealing ring and said seal portion as said hollow annular portion is moved between said first and said second sealing position, said trapped fluid being expelled around said hollow annular portion as said second sealing position is reached.
Claim 2
Dependent Claim
282 words
Apparatus for dispensing metered amounts of fluid, which comprises, in combination: a container for said fluid, said container including a body portion and a neck portion defining an opening into said container; a stationary guide member secured in said neck and filling the opening in said neck, said guide member including a skirt portion extending into said container, an inwardly extending flange portion integrally formed with the end of said skirt portion, and a sealing wall, attached to the end of said flange portion, extending toward said container opening and defining an opening communicating with the contents of said container; a movable metering member, slideably engaged in said opening defined by said sealing wall, said movable metering member including a hollow annular portion with a diameter less than the diameter of said skirt portion of said guide member and extending beyond said container opening, a seal Portion forming a fluid tight seal with said sealing wall when said hollow annular portion is moved toward said container opening to a first sealing position, and an extension portion projecting beyond said seal portion and being closed to prevent the contents of said container from entering said movable metering member; and a sealing ring, carried by said extension portion, said sealing ring forming a fluid tight seal with said sealing wall when said hollow annular portion is moved away from said container opening to a second sealing position, a measured quantity of fluid being trapped between said sealing ring and said seal portion as said hollow annular portion is moved between said first and said second sealing position, said trapped fluid being expelled around said hollow annular portion as said second sealing position is reached.
Claim 3
Dependent Claim
73 words
The apparatus of claim 1 wherein said movable metering member further includes: a plurality of longitudinally extending ribs, integrally formed on the periphery of said hollow annular portion and being spaced apart thereon, said ribs extending radially and being in sliding contact with said guide member to thereby control the movement of said movable metering member in response to the movement of said movable metering member to and from said first sealing position.
Claim 4
Dependent Claim
46 words
The apparatus of claim 1 wherein said sealing ring further includes: a stop rib, extending radially beyond said sealing ring, positioned to engage said sealing wall at said second sealing position and thereby prevent further movement of said movable metering member beyond said second sealing position.
Claim 5
Dependent Claim
48 words
The apparatus of claim 1 wherein said metering member further includes: a stop ledge, connecting said hollow annular portion and said seal portion, for engaging said sealing wall at said first sealing position and thereby prevent further movement of said movable metering member beyond said first sealing position.
Claim 6
Dependent Claim
75 words
The apparatus of claim 1 wherein said neck portion includes an externally threaded finish portion, and which further includes: a closure having an interiorally threaded depending skirt integrally connected with a disc portion, said closure being threadably engaged with said finish portion, said disc portion contacting said movable metering member and holding said movable metering member in said first sealing position until said closure is removed to allow dispensing of the contents of said container.
Claim 7
Dependent Claim
191 words
A package for dispensing a metered amount of fluid into a toilet flush tank which comprises, in combination: a container for said fluid, said container including a body portion and a neck portion defining an opening into said container; a stationary guide member secured in said neck and filling the opening in said neck, said guide member including a sealing wall defining an opening communicating with the contents of said container; a float member, slideably mounted on said guide member, said float member having two longitudinally spaced-apart sealing surfaces for sealingly engaging said sealing wall in a first sealing position in communication with the contents of said container and a second sealing position in communication with said flush tank; and means for mounting said package in said flush tank with said float member downward, whereby said float member will be in said first sealing position when said tank is full and will move to said second sealing position when said tank is emptied, thereby dispensing into said tank a metered quantity of fluid trapped between said first and second sealing surfaces during movement from said first to said second sealing position.
Claim 8
Dependent Claim
191 words
A package for dispensing a metered amount of fluid into a toilet flush tank which comprises, in combination: a container for said fluid, said container including a body portion and a neck portion defining an opening into said container; a stationary guide member secured in said neck and filling the opening in said neck, said guide member including a sealing wall defining an opening communicating with the contents of said container; a float member, slideably mounted on said guide member, said float member having two longitudinally spaced-apart sealing surfaces for sealingly engaging said sealing wall in a first sealing position in communication with the contents of said container and a second sealing position in communication with said flush tank; and means for mounting said package in said flush tank with said float member downward, whereby said float member will be in said first sealing position when said tank is full and will move to said second sealing position when said tank is emptied, thereby dispensing into said tank a metered quantity of fluid trapped between said first and second sealing surfaces during movement from said first to said second sealing position.
Claim 9
Dependent Claim
51 words
The package of claim 6 wherein said stationary guide member includes: a skirt portion extending into said container; and an inwardly extending flange portion integrally formed with the end of said skirt portion, said sealing wall being attached to the end of said flange portion and extending toward said container openinG.
Claim 10
Dependent Claim
150 words
The package of claim 6 wherein said float member comprises: a metering member, slideably engaged in said opening defined by said sealing wall, said metering member including a hollow annular portion with a diameter less than the diameter of said stationary guide member and extending beyond said container opening, a seal portion defining said first sealing surface and forming a fluid tight seal with said sealing wall when said hollow annular portion is moved toward said container opening, thereby defining said first sealing position, and an extension portion projecting beyond said seal portion and being closed to prevent the contents of said container from entering said metering member; and a sealing ring, carried by said extension portion, defining said second sealing surface and forming a fluid tight seal with said sealing wall when said hollow annular portion is moved away from said container opening, thereby defining said second sealing position.
Claim 11
Dependent Claim
69 words
The package of claim 8 wherein said float member further includes: a plurality of longitudinally extending ribs, integrally formed on the periphery of said hollow annular portion and being spaced apart thereon, said ribs extending radially and being in sliding contact with said guide member to thereby control the movement of said float member in response to the rise and fall of the water level in said flush tank.
Claim 12
Dependent Claim
46 words
The package of claim 8 wherein said sealing ring further includes: a stop rib, extending radially beyond said second sealing surface, positioned to engage said sealing wall at said second sealing position and thereby prevent further movement of said float member beyond said second sealing position.
Claim 13
Dependent Claim
47 words
The package of claim 8 wherein said metering member further includes: a stop ledge, connecting said hollow annular portion and said seal portion, for engaging said sealing wall at said first sealing position and thereby prevent further movement of said float member beyond said first sealing position.
Claim 14
Dependent Claim
73 words
The package of claim 6 wherein said neck portion includes an externally threaded finish portion, and which further includes: a closure having an interiorally threaded depending skirt integrally connected with a disc portion, said closure being threadably engaged with said finish portion, said disc portion contacting said float member and holding said float member in said first sealing position until said closure is removed to allow dispensing of the contents of said container.
Claim 15
Dependent Claim
112 words
In a package for dispensing metered quantities of a fluid into a toilet flush tank wherein said fluid is held within a container and wherein said package includes a movable member carried by said container and said member''s position is dictated by the level of water in said flush tank and reciprocates between an upper position when said tank is filled and a lower position when said tank is emptied, the improvement in said package which comprises: means for trapping and dispensing a measured quantity of said fluid during movement of said movable member from said upper to said lower position, said dispensing occurring as said movable member reaches said lower position.
Claim 16
Dependent Claim
112 words
In a package for dispensing metered quantities of a fluid into a toilet flush tank wherein said fluid is held within a container and wherein said package includes a movable member carried by said container and said member''s position is dictated by the level of water in said flush tank and reciprocates between an upper position when said tank is filled and a lower position when said tank is emptied, the improvement in said package which comprises: means for trapping and dispensing a measured quantity of said fluid during movement of said movable member from said upper to said lower position, said dispensing occurring as said movable member reaches said lower position.
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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) | 1978-09-29 | 1979-03-31 | 1979-09-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-09-29 | 1983-03-31 | 1983-09-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-09-29 | 1987-03-31 | 1987-09-30 | $7700.00 | Window Closed / Lapsed |