US3635344A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Unitary filter and pump for home aquariums
Assignee: Sternco Industries Inc
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Filing: 1970-08-21
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Granted: 1972-01-18
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Expires: 1990-08-21
Abstract
Abstract A combination filter and motorized pump for mounting on the wall of an aquarium. A housing containing a removable filter tank and electric heater is connected by an upper casing to a screw-type of water elevator adapted for positioning within the aquarium, the said housing being positionable outside of the aquarium wall. The top of said casing comprises a platform supporting an electric motor, the said screw elevator extending up through the floor of the casing and being connected by shafting to said motor. A deflector disc is mounted on said shafting for deflecting water downwardly to protect the motor and direct the water to the casing floor from which it flows downwardly through the filtering and heating compartments of the housing, and then upwardly through lateral passageways to correspondingly positioned spillways, the latter being integral with hook members supporting the device on the rim of the aquarium.
Inventors
- 👤 David D Lovitz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 22:40
CPC Classifications
A; A01; A01K; A01K63/00; A01K63/04; A01K63/045; A01K63/047; E; E04; E04H; E04H4/00; E04H4/12; E04H4/1209
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
178 words
A unitary filter and pump for home aquariums having a housing, a filter tank within the housing, a water outlet passageway within the housing communicating with said filter tank, a support member at the upper portion of said housing for mounting on the rim of an aquarium, a casing adjacent said support member and joined to said housing, said casing having a floor, a platform above said floor, tubular water-lifting means comprising a screw water elevator and a riser tube encasing said elevator, said screw elevator extending through said floor of said casing, an electric motor mounted on said platform, shafting operatively connecting said motor and said screw elevator, said floor having a portion thereof disposed above said filter tank and in communication therewith, whereby water operatively pumped upwardly by said screw elevator will be deposited on said floor to gravitationally flow into said filter tank, and a return water spillway in the upper region of said housing and in communication with said water passageway for returning the filtered water in said passageway to an operatively positioned aquarium.
Claim 2
Dependent Claim
178 words
A unitary filter and pump for home aquariums having a housing, a filter tank within the housing, a water outlet passageway within the housing communicating with said filter tank, a support member at the upper portion of said housing for mounting on the rim of an aquarium, a casing adjacent said support member and joined to said housing, said casing having a floor, a platform above said floor, tubular water-lifting means comprising a screw water elevator and a riser tube encasing said elevator, said screw elevator extending through said floor of said casing, an electric motor mounted on said platform, shafting operatively connecting said motor and said screw elevator, said floor having a portion thereof disposed above said filter tank and in communication therewith, whereby water operatively pumped upwardly by said screw elevator will be deposited on said floor to gravitationally flow into said filter tank, and a return water spillway in the upper region of said housing and in communication with said water passageway for returning the filtered water in said passageway to an operatively positioned aquarium.
Claim 3
Dependent Claim
45 words
A unitary filter and pump according to claim 1, said portion of said floor disposed over said filter tank comprising an edge on the front of the floor, whereby water operaTively deposited on said floor will flow over said edge downwardly into said filter tank.
Claim 4
Dependent Claim
38 words
A unitary filter and pump according to claim 1, said floor having a chamber with a downwardly and inwardly flared wall portion connected to the top of said riser tube, for spreading upwardly pumped water along said floor.
Claim 5
Dependent Claim
36 words
A unitary filter and pump according to claim 1, said shafting having fixedly mounted thereon a deflector disc spaced above said floor, for deflecting upwardly directed water downwardly away from said motor and towards said floor.
Claim 6
Dependent Claim
22 words
A unitary filter and pump according to claim 4, said shafting having a portion thereof below said disc made of flexible material.
Claim 7
Dependent Claim
41 words
A unitary filter and pump according to claim 4, said casing having a lateral wall portion joined with said floor and platform to define the interior of said casing, said disc being disposed within said casing interior and adjacent said platform.
Claim 8
Dependent Claim
20 words
A unitary filter and pump according to claim 1, said platform having mounted thereupon an apertured cover enclosing said motor.
Claim 9
Dependent Claim
29 words
A unitary filter and pump according to claim 1, said support member being laterally adjacent said casing, said spillway being disposed over and being integral with said support member.
Claim 10
Dependent Claim
58 words
A unitary filter and pump according to claim 1, said housing having a compartment below said filter tank, an electric heating unit disposed in said compartment, said filter tank communicating with said compartment, whereby filtered water from the tank will operatively come into engagement with said heating unit, said compartment being in communication with said water outlet passageway.
Claim 11
Dependent Claim
101 words
A unitary filter and pump according to claim 1, said housing having a second support member at its upper portion, said support members being in flanking relation to said casing, said housing having a second spillway and a second water outlet passageway, said latter spillway being disposed over and being integral with said second support member and being in communication with said second outlet passageway, said casing having therein a deflector disc spaced above said floor and below said platform, for deflecting upwardly directed water downwardly away from said motor and towards said floor, and means for rotatably activating said disc.
References Cited (Backward Citations)
US2275428A
Cited
US3511376A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-01-17 | 1975-07-19 | 1976-01-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-01-17 | 1979-07-19 | 1980-01-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-01-17 | 1983-07-19 | 1984-01-18 | $7700.00 | Window Closed / Lapsed |