US3607103A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Chemical dispenser for swimming pools
Assignee: Individual
•
Filing: 1970-01-23
•
Granted: 1971-09-21
•
Expires: 1990-01-23
Abstract
Abstract A buoyant container for dispensing a solid chemical composition while floating on the surface of a liquid has a compartment for confining the chemical composition arranged with respect to the center of buoyancy so that the attitude of the container when empty is substantially different than the attitude of the container when the compartment is filled.
Inventors
- 👤 Adolph Kiefer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 08:46
CPC Classifications
C; C02; C02F; C02F1/00; C02F1/68; C02F1/685; C02F1/688; B; B01; B01F; B01F21/00; B01F21/20; B01F21/22; B65; B65D; B65D83/00; B01F33/00; B01F33/50; B01F33/503; C02F1/72; C02F1/76; C02F2103/00; C02F2103/42
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
27 words
The invention defined in claim 1 wherein said container is provided with port means for admission of liquid into said compartment when the container is floating therein.
Claim 2
Dependent Claim
34 words
The invention defined in claim 2 wherein said port means includes an opening in said container for admitting liquid to the interior of said compartment, and means for controlling the size of said opening.
Claim 3
Dependent Claim
52 words
The invention defined in claim 3 wherein at least a portion of said container is circular in cross section and said means for controlling the size of the opening in the container includes an exterior concentric skirt having another opening positioned for registry with the first opening when the skirt is revolved.
Claim 4
Dependent Claim
35 words
The invention defined in claim 1, wherein said container is cylindrical in configuration and means is provided within the container to exclude solid chemical composition in said compartment from one end portion of the container.
Claim 5
Dependent Claim
27 words
The invention defined in claim 5, wherein said means to exclude said composition includes a foamed plastic material positioned within said one end portion of the container.
Claim 6
Dependent Claim
32 words
The invention defined in claim 5, wherein said container is provided with an opening adjacent the other end for communication with the interior of the container and means for closing said opening.
Claim 7
Dependent Claim
49 words
The invention defined in claim 7, wherein said means for closing the opening includes regulator cap means revolvably secured to the exterior of said other end of the container, said cap means being provided with an opening for registry with the opening communication with the interior of the container.
Claim 8
Dependent Claim
27 words
The invention defined in claim 8, wherein said regulator cap means is cup shaped to provide a cylindrical skirt portion overlying the cylindrical exterior of the container.
Claim 9
Dependent Claim
19 words
The invention defined in claim 9, wherein said opening in the cap means is disposed in said skirt portion.
Claim 10
Dependent Claim
32 words
The invention defined in claim 10, wherein said container and said skirt portion are each provided with a plurality of longitudinal extending circumferentially spaced slotted openings for successive registry with one another.
Claim 11
Dependent Claim
84 words
The invention defined in claim 10, wherein said marginal portion of the interior surface of the skirt portion and a portion of the exterior surface of the container are disposed in freely slidable engagement with one another, at least one of said two members being fabricated from a plastic material, one of said surfaces being provided with an annular groove, the other of the surfaces having an annular ridge engaging with said groove to retain the regulator cap means in place on the container.
Claim 12
Dependent Claim
67 words
The invention defined in claim 10, wherein said other end of the container includes a reduced neck portion for a filler cap means communicating with the interior of the container, and the transverse end surface of the cup-shaped regulator cap means overlies the neck portion, said end surface also being provided with an opening to admit fluid to the space between the neck portion and end wall.
Claim 13
Dependent Claim
37 words
The invention defined in claim 10, wherein said means to exclude solid chemical composition from said one end of the container includes the provision of a barrier of buoyant material within the container at said one end.
Claim 14
Dependent Claim
12 words
The invention defined in claim 14, wherein said barrier comprises cellular material.
Claim 15
Dependent Claim
16 words
The invention defined in claim 14, wherein said barrier comprises a block of foamed plastic material.
References Cited (Backward Citations)
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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) | 1974-09-20 | 1975-03-22 | 1975-09-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-09-20 | 1979-03-22 | 1979-09-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-09-20 | 1983-03-22 | 1983-09-21 | $7700.00 | Window Closed / Lapsed |