US4435858A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Automatic toilet bowl cleaning device
Assignee: Individual
•
Filing: 1982-07-06
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Granted: 1984-03-13
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Expires: 2002-07-06
Abstract
Abstract An automatic toilet bowl cleaning device adapted to dispense water soluble solid disinfectant into the flushing water of the toilet tank, such device comprising a container for the disinfectant and a cover fitted on the container; the cover has a series of spaced holes or apertures extending through the top wall thereof and a series of spaced holes extending through the side wall, the total area of all of the latter holes being less than the total area of the former holes; and in which the former holes are arranged in the diametrically opposite half of the cover from the latter holes, whereby in operation, air is trapped momentarily in the head of the device creating a turbulence inside the container which provides a mixing action, thereby promoting the formation and dispensing of disinfectant solution.
Inventors
- 👤 John E. Dolan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 09:49
CPC Classifications
E; E03; E03D; E03D9/00; E03D9/02; E03D9/03; E03D9/033; E03D9/038; E03D2009/024
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
180 words
An automatic toilet bowl cleaning device adapted to dispense water-soluble disinfectant into the flushing water of a toilet tank comprising: (a) a container for the disinfectant; (b) a cover, consisting of a single shell, fitted on the container, said cover having a top wall and a side, or peripheral, wall; a first series of at least three spaced holes extending through the top wall of said cover and a second series of at least three spaced holes extending through the side, or peripheral, wall of said cover; (c) the total area of all of the spaced holes of the second series being less then the total area of all of the spaced holes of the first series, all of the spaced holes of the second series being arranged solely in one-half of the cover, while all of the spaced holes of the first series are arranged solely in the diametrically opposite half of the cover; (d) whereby the disinfectant solution formed within the container is consistently dispensed due to the increased mixing action of the solvent with the solid disinfectant.
Claim 2
Dependent Claim
180 words
An automatic toilet bowl cleaning device adapted to dispense water-soluble disinfectant into the flushing water of a toilet tank comprising: (a) a container for the disinfectant; (b) a cover, consisting of a single shell, fitted on the container, said cover having a top wall and a side, or peripheral, wall; a first series of at least three spaced holes extending through the top wall of said cover and a second series of at least three spaced holes extending through the side, or peripheral, wall of said cover; (c) the total area of all of the spaced holes of the second series being less then the total area of all of the spaced holes of the first series, all of the spaced holes of the second series being arranged solely in one-half of the cover, while all of the spaced holes of the first series are arranged solely in the diametrically opposite half of the cover; (d) whereby the disinfectant solution formed within the container is consistently dispensed due to the increased mixing action of the solvent with the solid disinfectant.
Claim 3
Dependent Claim
42 words
A device as defined in claim 1, in which the ratio of the total area of all of the first series of spaced holes to the total area of all of the second series of spaced holes is approximately four to one.
Claim 4
Dependent Claim
36 words
A device as defined in claim 2, in which the total area of the first series of spaced holes is approximately 0.0825 square inches and the area of the second series is approximately 0.0207 square inches.
Claim 5
Dependent Claim
39 words
A device as defined in claim 1, in which the total height of the device is approximately five inches, the diameter at the base is approximately 23/4 inches, and the diameter at the top is approximately 2 7/16 inches.
Claim 6
Dependent Claim
23 words
A device as defined in claim 4, in which the side holes are located approximately 37/8 inches from the bottom of said container.
References Cited (Backward Citations)
US3423182A
Cited
US3769640A
Cited
US3781926A
Cited
US3867101A
Cited
US4277853A
Cited
US4318891A
Cited
US4365362A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1987-03-13 | 1987-09-12 | 1988-03-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-03-13 | 1991-09-12 | 1992-03-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-03-13 | 1995-09-12 | 1996-03-13 | $7700.00 | Window Closed / Lapsed |