Patent US4612876A successfully refreshed from Google Patents.
US4612876A
Expired / Lapsed
US
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Aquarium
Assignee: ESCO DISTRIBUTORS Inc
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Filing: 1985-11-04
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Granted: 1986-09-23
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Expires: 2005-11-04
Abstract
Abstract An aquarium for maintaining fish or the like characterized by an upper transparent container means that has its side wall, bottom and a valve body integrally formed together to prevent leaks. The transparent container sits on a base. An air pump, air conduit, and air flow control valve are disposed out of sight interiorly of the base. The valve body contains the check valve and serves as an air inlet for bubbling air upwardly through the water at a controlled rate provided by the air flow control valve. The check valve prevents leaking back into the air inlet passageway in the event the power is interrupted and prevents leaking a substantial quantity in the event that the hose, or air conduit, is inadvertently disconnected. Also disclosed is a kit embodiment which is sold on the retail market in which all the elements are provided.
Inventors
- 👤 Donald J. Tigert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 18:39
CPC Classifications
A; A01; A01K; A01K63/00; A01K63/003; A01K63/04; A01K63/042
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
368 words
An aquarium for maintaining fish and the like comprising: a. an upper transparent container means for holding water and fish; said transparent container means having integrally molded bottom and side walls so as to be a unitary and waterproof without a leak of water therefrom and having a first size of first predetermined dimensions laterally not to exceed one foot; b. a base supporting said transparent container means and having a second size of second predetermined dimension laterally sufficient to support said transparent container means; c. an air pump for pumping an oxygen-containing gas through said transparent container means; d. at least one air conduit connected with said transparent container means and said air pump to define a conductive air passageway from said air pump to said transparent container means; e. an air flow control valve disposed in said air passageway such that the rate of flow of said oxygen-containing gas can be adjusted to a desired rate to prevent killing the fish; said air pump, air conduits and air flow control valve being disposed in said base out of sight, said upper transparent container means having integrally formed side wall, bottom and a valve body in said bottom for alleviating problems with leaking said valve body having a protector sleeve and a nipple protruding beneath said bottom and defining a passageway through said bottom and interiorly of said transparent container means with an air inlet penetrating above the bottom of said transparent container means such that an oxygen-containing gas can be bubbled upwardly through said water in said upper transparent container means without leaking; and a check valve above said nipple for preventing water from running into said air passageway thereby preventing water from running from said transparent container through said air inlet; said valve body and said air inlet protruding upwardly from said bottom into said transparent container means for a distance sufficient to allow simulated gravel to be disposed in said bottom and about said check valve such that said oxygen-containing gas can be bubbled upwardly without agitating settlings in said simulated gravel; and f. simulated gravel disposed in said bottom so as to receive settlings from the water in said upper transparent container means.
Claim 2
Dependent Claim
368 words
An aquarium for maintaining fish and the like comprising: a. an upper transparent container means for holding water and fish; said transparent container means having integrally molded bottom and side walls so as to be a unitary and waterproof without a leak of water therefrom and having a first size of first predetermined dimensions laterally not to exceed one foot; b. a base supporting said transparent container means and having a second size of second predetermined dimension laterally sufficient to support said transparent container means; c. an air pump for pumping an oxygen-containing gas through said transparent container means; d. at least one air conduit connected with said transparent container means and said air pump to define a conductive air passageway from said air pump to said transparent container means; e. an air flow control valve disposed in said air passageway such that the rate of flow of said oxygen-containing gas can be adjusted to a desired rate to prevent killing the fish; said air pump, air conduits and air flow control valve being disposed in said base out of sight, said upper transparent container means having integrally formed side wall, bottom and a valve body in said bottom for alleviating problems with leaking said valve body having a protector sleeve and a nipple protruding beneath said bottom and defining a passageway through said bottom and interiorly of said transparent container means with an air inlet penetrating above the bottom of said transparent container means such that an oxygen-containing gas can be bubbled upwardly through said water in said upper transparent container means without leaking; and a check valve above said nipple for preventing water from running into said air passageway thereby preventing water from running from said transparent container through said air inlet; said valve body and said air inlet protruding upwardly from said bottom into said transparent container means for a distance sufficient to allow simulated gravel to be disposed in said bottom and about said check valve such that said oxygen-containing gas can be bubbled upwardly without agitating settlings in said simulated gravel; and f. simulated gravel disposed in said bottom so as to receive settlings from the water in said upper transparent container means.
Claim 3
Dependent Claim
96 words
The aquarium of claim 1 wherein said elements a-f are provided in kit form along with simulated greenery and said air pump is connected by air conduit with said air flow control valve, which is, in turn connected by air conduit with said nipple protruding beneath the bottom of said transparent container means and interiorly of said protector sleeve, said hose, said protector sleeve and said nipple being sized so as to interferingly fit and compressingly hold said hose in place; said pump having an electric cord for plugging into a conventional alternating current electrical source.
Claim 4
Dependent Claim
69 words
The aquarium of claim 1 wherein said valve body has an interior chamber housing a flapper of said check valve; said check valve has a flat seat with a smooth, substantially planar sealing surface and said check valve has a flat natural rubber flapper for seating sealingly against said flat seat; wherein said valve body has a snap-in top having an upwardly extending nipple disposed above said check valve.
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) | 1989-09-22 | 1990-03-24 | 1990-09-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-09-22 | 1994-03-24 | 1994-09-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-09-22 | 1998-03-24 | 1998-09-23 | $7700.00 | Window Closed / Lapsed |