US3826371A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Aquarium cleaning device
Assignee: Individual
•
Filing: 1972-12-21
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Granted: 1974-07-30
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Expires: 1992-12-21
Abstract
Abstract An aquarium cleaning device comprising a withdrawing tube for removing water along with debris and foreign matter from an aquarium and advancing the removed water into a filter. Openings in the bottom of the filter enable the filtered water to return to the aquarium. The withdrawing tube has a reduced diameter inlet opening disposed in the aquarium for increasing the speed of the withdrawal of water with debris and foreign matter into the withdrawing tube. Air is supplied to the withdrawing tube for the removing of water with debris and foreign matter from the aquarium and for advancing the removed water through the withdrawing tube into the filter. Spaced from and above the inlet opening, the withdrawing tube includes an increased diameter portion or a deceleration chamber to cause sand and objects of greater density advancing from the inlet opening of the withdrawing tube to fall back into the aquarium through openings in the wall thereof rather than advance to the filter.
Inventors
- 👤 J Adamson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 22:57
CPC Classifications
A; A01; A01K; A01K63/00; A01K63/04; A01K63/045
Claims Analysis
Total Claims: 20
Claim 1
Independent Claim
199 words
A device for cleaning an aquarium comprising: a. a filter; b. a withdrawing tube communicating with said filter for removing water from an aquarium tank and for discharging the water into said filter for cleaning the water, c. said withdrawing tube comprising an inlet section of reduced diameter with a lower end for receiving water in the aquarium tank and wIth an upper end for discharging water within the withdrawing tube; and d. means communicating with said lower end of said inlet section of said withdrawing tube for supplying air into said inlet section for lifting water from the aquarium tank through said withdrawing tube for discharge into said filter, e. said withdrawing tube comprising an increased diameter section telescopically receiving the upper end of said inlet section, said increased diameter section of said withdrawing tube including an inner wall for connecting said increased diameter section to said upper end of said inlet section and an outer wall radially spaced from said upper end of said inlet section by axially extending legs angularly spaced apart defining openings for discharging matter of a density above a desired amount into the aquarium tank before such matter is discharged into the filter.
Claim 2
Independent Claim
199 words
A device for cleaning an aquarium comprising: a. a filter; b. a withdrawing tube communicating with said filter for removing water from an aquarium tank and for discharging the water into said filter for cleaning the water, c. said withdrawing tube comprising an inlet section of reduced diameter with a lower end for receiving water in the aquarium tank and wIth an upper end for discharging water within the withdrawing tube; and d. means communicating with said lower end of said inlet section of said withdrawing tube for supplying air into said inlet section for lifting water from the aquarium tank through said withdrawing tube for discharge into said filter, e. said withdrawing tube comprising an increased diameter section telescopically receiving the upper end of said inlet section, said increased diameter section of said withdrawing tube including an inner wall for connecting said increased diameter section to said upper end of said inlet section and an outer wall radially spaced from said upper end of said inlet section by axially extending legs angularly spaced apart defining openings for discharging matter of a density above a desired amount into the aquarium tank before such matter is discharged into the filter.
Claim 3
Dependent Claim
150 words
A tube for withdrawing water from an aquarium tank for cleaning comprising: a. an inlet section of reduced diameter with a lower end for receiving water in the aquarium tank and with an upper end for discharging water within the tube, said inlet section including a connector at its lower end for supplying air into said inlet section to advance water through the tube; b. an increased diameter section telescopically receiving said upper end of said inlet section, said increased diameter section including an inner wall for connecting said increased diameter section to said upper end of said inlet section and an outer wall radially spaced from said upper end of said inlet section by axially extending legs angularly spaced apart defining openings for discharging matter of a density above a desired amount; and c. a section connected to said increased diameter section for discharging water advancing through the tube.
Claim 4
Dependent Claim
150 words
A tube for withdrawing water from an aquarium tank for cleaning comprising: a. an inlet section of reduced diameter with a lower end for receiving water in the aquarium tank and with an upper end for discharging water within the tube, said inlet section including a connector at its lower end for supplying air into said inlet section to advance water through the tube; b. an increased diameter section telescopically receiving said upper end of said inlet section, said increased diameter section including an inner wall for connecting said increased diameter section to said upper end of said inlet section and an outer wall radially spaced from said upper end of said inlet section by axially extending legs angularly spaced apart defining openings for discharging matter of a density above a desired amount; and c. a section connected to said increased diameter section for discharging water advancing through the tube.
Claim 5
Dependent Claim
29 words
A device as claimed in claim 2 wherein said increased diameter section is tapered above said openings to smooth out the flow of air through said increased diameter section.
Claim 6
Dependent Claim
29 words
A tube as claimed in claim 2 wherein said increased diameter section is tapered above said openings to smooth out the flow of air through said increased diameter section.
Claim 7
Independent Claim
222 words
A device for cleaning an aquarium comprising: a. a filter; b. a withdrawing tube communicating with said filter for removing water from an aquarium tank and for discharging the water into said filter for cleaning the water, c. said withdrawing tube comprising an inlet section of reduced diameter with a lower end for receiving water in the aquarium tank and with an upper end for discharging water within the tube; and d. means communicating with said lower end of said inlet section of said withdrawing tube for supplying air into said inlet section for lifting water from the aquarium tank through said withdrawing tube for discharge into said filter, e. said withdrawing tube comprising an increased diameter section communicating with said upper end of said inlet section for the discharge of water thereinto, said increased diameter section including means for connecting said increased diameter section to said upper end of said inlet section and an outer wall radially spaced from said upper end of said inlet section, said increased diameter section being formed with openings adjacent to the connection between said increased diameter section and said upper end of said inlet section for discharging into the aquarium tank matter in the water discharged from the inlet section of a density above a desired amount before such water is discharged into the filter.
Claim 8
Independent Claim
222 words
A device for cleaning an aquarium comprising: a. a filter; b. a withdrawing tube communicating with said filter for removing water from an aquarium tank and for discharging the water into said filter for cleaning the water, c. said withdrawing tube comprising an inlet section of reduced diameter with a lower end for receiving water in the aquarium tank and with an upper end for discharging water within the tube; and d. means communicating with said lower end of said inlet section of said withdrawing tube for supplying air into said inlet section for lifting water from the aquarium tank through said withdrawing tube for discharge into said filter, e. said withdrawing tube comprising an increased diameter section communicating with said upper end of said inlet section for the discharge of water thereinto, said increased diameter section including means for connecting said increased diameter section to said upper end of said inlet section and an outer wall radially spaced from said upper end of said inlet section, said increased diameter section being formed with openings adjacent to the connection between said increased diameter section and said upper end of said inlet section for discharging into the aquarium tank matter in the water discharged from the inlet section of a density above a desired amount before such water is discharged into the filter.
Claim 9
Dependent Claim
23 words
A device as claimed in claim 5 wherein said upper end of said inlet section is telescopically received by said increased diameter section.
Claim 10
Dependent Claim
28 words
A device as claimed in claim 6 wherein said openings in said increased diameter section are defined by axially extending sections in said outer wall angularly spaced apart.
Claim 11
Dependent Claim
27 words
A device as claimed in claim 7 wherein said means connecting said increased diameter section to said upper end of said inleT section is an inner wall.
Claim 12
Dependent Claim
29 words
A device as claimed in claim 8 wherein said increased diameter section is tapered above said openings to smooth out the flow of air through said increased diameter section.
Claim 13
Dependent Claim
16 words
A device as claimed in claim 9 wherein said filter is supported by said withdrawing tube.
Claim 14
Dependent Claim
21 words
A device as claimed in claim 10 and comprising means on said filter for returning filtered water to the aquarium tank.
Claim 15
Dependent Claim
161 words
A tube for withdrawing water from an aquarium tank for cleaning comprising: a. an inlet section of reduced diameter with a lower end for receiving water in the aquarium tank and with an upper end for discharging water within the tube, said inlet section including a connector for supplying air into said inlet section to advance water through the tube; and b. an increased diameter section communicating with the upper end of said inlet section, said increased diameter section including means connected to the upper end of said inlet section and an outer wall radially spaced from the upper end of said inlet section, said increased diameter section being formed with openings adjacent to the connection between said increased diameter section and the upper end of said inlet section for discharging matter in the advancing water of a density greater than a desired amount; and c. a section connected to said increased diameter section for discharging water advancng through the tube.
Claim 16
Dependent Claim
161 words
A tube for withdrawing water from an aquarium tank for cleaning comprising: a. an inlet section of reduced diameter with a lower end for receiving water in the aquarium tank and with an upper end for discharging water within the tube, said inlet section including a connector for supplying air into said inlet section to advance water through the tube; and b. an increased diameter section communicating with the upper end of said inlet section, said increased diameter section including means connected to the upper end of said inlet section and an outer wall radially spaced from the upper end of said inlet section, said increased diameter section being formed with openings adjacent to the connection between said increased diameter section and the upper end of said inlet section for discharging matter in the advancing water of a density greater than a desired amount; and c. a section connected to said increased diameter section for discharging water advancng through the tube.
Claim 17
Dependent Claim
23 words
A tube as claimed in claim 12 wherein the upper end of said inlet section is telescopically received by said increased diameter section.
Claim 18
Dependent Claim
29 words
A tube as claimed in claim 13 wherein said openings formed in said increased diameter section are defined by axially extending sections in said outer wall angularly spaced apart.
Claim 19
Dependent Claim
27 words
A tube as claimed in claim 14 wherein said means connecting said increased diameter section to the upper end of said inlet section is an inner wall.
Claim 20
Dependent Claim
29 words
A device as claimed in claim 15 wherein said increased diameter section is tapered above said openings to smooth out the flow of air through said increased diameter section.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-07-29 | 1978-01-28 | 1978-07-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-07-29 | 1982-01-28 | 1982-07-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-07-29 | 1986-01-28 | 1986-07-30 | $7700.00 | Window Closed / Lapsed |